Merge branch 'master' into bulk-connectors-ops

.devcontainer/devcontainer.json

@@ -0,0 +1,36 @@
+{
+	"name": "Java",
+
+	"image": "mcr.microsoft.com/devcontainers/java:0-17",
+
+	"features": {
+		"ghcr.io/devcontainers/features/java:1": {
+			"version": "none",
+			"installMaven": "true",
+			"installGradle": "false"
+		},
+		"ghcr.io/devcontainers/features/docker-in-docker:2": {}
+	},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "java -version",
+
+	"customizations": {
+		"vscode": {
+			"extensions" : [
+				"vscjava.vscode-java-pack",
+				"vscjava.vscode-maven",
+				"vscjava.vscode-java-debug",
+				"EditorConfig.EditorConfig",
+				"ms-azuretools.vscode-docker",
+				"antfu.vite",
+				"ms-kubernetes-tools.vscode-kubernetes-tools",
+                "github.vscode-pull-request-github"
+			]
+		}
+	}
+
+}

.github/ISSUE_TEMPLATE/bug_report.md

@@ -9,6 +9,8 @@ assignees: ''
 
 <!--
 
+We will close the issue without further explanation if you don't follow this template and don't provide the information requested within this template.
+
 Don't forget to check for existing issues/discussions regarding your proposal. We might already have it.
 https://github.com/provectus/kafka-ui/issues
 https://github.com/provectus/kafka-ui/discussions

.github/workflows/aws_publisher.yaml

@@ -31,7 +31,7 @@ jobs:
           echo "Packer will be triggered in this dir $WORK_DIR"
 
       - name: Configure AWS credentials for Kafka-UI account
-        uses: aws-actions/configure-aws-credentials@v1
+        uses: aws-actions/configure-aws-credentials@v2
         with:
           aws-access-key-id: ${{ secrets.AWS_AMI_PUBLISH_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_AMI_PUBLISH_KEY_SECRET }}

.github/workflows/block_merge.yml

@@ -6,7 +6,7 @@ jobs:
   block_merge:
     runs-on: ubuntu-latest
     steps:
-      - uses: mheap/github-action-required-labels@v2
+      - uses: mheap/github-action-required-labels@v3
         with:
           mode: exactly
           count: 0

.github/workflows/branch-deploy.yml

@@ -45,7 +45,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-buildx-
       - name: Configure AWS credentials for Kafka-UI account
-        uses: aws-actions/configure-aws-credentials@v1
+        uses: aws-actions/configure-aws-credentials@v2
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -55,7 +55,7 @@ jobs:
         uses: aws-actions/amazon-ecr-login@v1
       - name: Build and push
         id: docker_build_and_push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           builder: ${{ steps.buildx.outputs.name }}
           context: kafka-ui-api

.github/workflows/build-public-image.yml

@@ -42,7 +42,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-buildx-
       - name: Configure AWS credentials for Kafka-UI account
-        uses: aws-actions/configure-aws-credentials@v1
+        uses: aws-actions/configure-aws-credentials@v2
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -54,7 +54,7 @@ jobs:
           registry-type: 'public'
       - name: Build and push
         id: docker_build_and_push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           builder: ${{ steps.buildx.outputs.name }}
           context: kafka-ui-api

.github/workflows/cve.yaml

@@ -40,7 +40,7 @@ jobs:
             ${{ runner.os }}-buildx-
 
       - name: Build docker image
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           builder: ${{ steps.buildx.outputs.name }}
           context: kafka-ui-api
@@ -55,7 +55,7 @@ jobs:
           cache-to: type=local,dest=/tmp/.buildx-cache
 
       - name: Run CVE checks
-        uses: aquasecurity/trivy-action@0.9.1
+        uses: aquasecurity/trivy-action@0.9.2
         with:
           image-ref: "provectuslabs/kafka-ui:${{ steps.build.outputs.version }}"
           format: "table"

.github/workflows/delete-public-image.yml

@@ -15,7 +15,7 @@ jobs:
           tag='${{ github.event.pull_request.number }}'
           echo "tag=${tag}" >> $GITHUB_OUTPUT
       - name: Configure AWS credentials for Kafka-UI account
-        uses: aws-actions/configure-aws-credentials@v1
+        uses: aws-actions/configure-aws-credentials@v2
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

.github/workflows/e2e-automation.yml

@@ -23,6 +23,12 @@ jobs:
       - uses: actions/checkout@v3
         with:
           ref: ${{ github.sha }}
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v2
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: eu-central-1
       - name: Set up environment
         id: set_env_values
         run: |
@@ -30,7 +36,7 @@ jobs:
       - name: Pull with Docker
         id: pull_chrome
         run: |
-          docker pull selenium/standalone-chrome:103.0
+          docker pull selenoid/vnc_chrome:103.0
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
@@ -46,6 +52,7 @@ jobs:
         id: compose_app
         # use the following command until #819 will be fixed
         run: |
+          docker-compose -f kafka-ui-e2e-checks/docker/selenoid-git.yaml up -d
           docker-compose -f ./documentation/compose/e2e-tests.yaml up -d
       - name: Run test suite
         run: |
@@ -65,8 +72,6 @@ jobs:
         if: always()
         env:
           AWS_S3_BUCKET: 'kafkaui-allure-reports'
-          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
-          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
           AWS_REGION: 'eu-central-1'
           SOURCE_DIR: 'allure-history/allure-results'
       - name: Deploy report to Amazon S3
@@ -74,7 +79,7 @@ jobs:
         uses: Sibz/github-status-action@v1.1.6
         with:
           authToken: ${{secrets.GITHUB_TOKEN}}
-          context: "Test report"
+          context: "Click Details button to open Allure report"
           state: "success"
           sha: ${{ github.sha }}
           target_url: http://kafkaui-allure-reports.s3-website.eu-central-1.amazonaws.com/${{ github.run_number }}

.github/workflows/e2e-checks.yaml

@@ -15,14 +15,20 @@ jobs:
       - uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
-      - name: Set the values
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v2
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: eu-central-1
+      - name: Set up environment
         id: set_env_values
         run: |
           cat "./kafka-ui-e2e-checks/.env.ci" >> "./kafka-ui-e2e-checks/.env"
-      - name: pull docker
+      - name: Pull with Docker
         id: pull_chrome
         run: |
-          docker pull selenium/standalone-chrome:103.0
+          docker pull selenoid/vnc_chrome:103.0
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
@@ -34,12 +40,13 @@ jobs:
         run: |
           ./mvnw -B -ntp versions:set -DnewVersion=${{ github.event.pull_request.head.sha }}
           ./mvnw -B -V -ntp clean install -Pprod -Dmaven.test.skip=true ${{ github.event.inputs.extraMavenOptions }}
-      - name: compose app
+      - name: Compose with Docker
         id: compose_app
         # use the following command until #819 will be fixed
         run: |
+          docker-compose -f kafka-ui-e2e-checks/docker/selenoid-git.yaml up -d
           docker-compose -f ./documentation/compose/e2e-tests.yaml up -d
-      - name: e2e run
+      - name: Run test suite
         run: |
           ./mvnw -B -ntp versions:set -DnewVersion=${{ github.event.pull_request.head.sha }}
           ./mvnw -B -V -ntp -Dsurefire.suiteXmlFiles='src/test/resources/smoke.xml' -f 'kafka-ui-e2e-checks' test -Pprod
@@ -57,11 +64,9 @@ jobs:
         if: always()
         env:
           AWS_S3_BUCKET: 'kafkaui-allure-reports'
-          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
-          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
           AWS_REGION: 'eu-central-1'
           SOURCE_DIR: 'allure-history/allure-results'
-      - name: Post the link to allure report
+      - name: Deploy report to Amazon S3
         if: always()
         uses: Sibz/github-status-action@v1.1.6
         with:

.github/workflows/e2e-weekly.yml

@@ -10,6 +10,12 @@ jobs:
       - uses: actions/checkout@v3
         with:
           ref: ${{ github.sha }}
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v2
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: eu-central-1
       - name: Set up environment
         id: set_env_values
         run: |
@@ -17,7 +23,7 @@ jobs:
       - name: Pull with Docker
         id: pull_chrome
         run: |
-          docker pull selenium/standalone-chrome:103.0
+          docker pull selenoid/vnc_chrome:103.0
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
@@ -33,6 +39,7 @@ jobs:
         id: compose_app
         # use the following command until #819 will be fixed
         run: |
+          docker-compose -f kafka-ui-e2e-checks/docker/selenoid-git.yaml up -d
           docker-compose -f ./documentation/compose/e2e-tests.yaml up -d
       - name: Run test suite
         run: |
@@ -52,8 +59,6 @@ jobs:
         if: always()
         env:
           AWS_S3_BUCKET: 'kafkaui-allure-reports'
-          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
-          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
           AWS_REGION: 'eu-central-1'
           SOURCE_DIR: 'allure-history/allure-results'
       - name: Deploy report to Amazon S3
@@ -61,7 +66,7 @@ jobs:
         uses: Sibz/github-status-action@v1.1.6
         with:
           authToken: ${{secrets.GITHUB_TOKEN}}
-          context: "Test report"
+          context: "Click Details button to open Allure report"
           state: "success"
           sha: ${{ github.sha }}
           target_url: http://kafkaui-allure-reports.s3-website.eu-central-1.amazonaws.com/${{ github.run_number }}

.github/workflows/frontend.yaml

@@ -24,7 +24,7 @@ jobs:
         with:
           version: 7.4.0
       - name: Install node
-        uses: actions/setup-node@v3.5.1
+        uses: actions/setup-node@v3.6.0
         with:
           node-version: "16.15.0"
           cache: "pnpm"

.github/workflows/master.yaml

@@ -53,7 +53,7 @@ jobs:
 
       - name: Build and push
         id: docker_build_and_push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           builder: ${{ steps.buildx.outputs.name }}
           context: kafka-ui-api

.github/workflows/release.yaml

@@ -72,7 +72,7 @@ jobs:
 
       - name: Build and push
         id: docker_build_and_push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           builder: ${{ steps.buildx.outputs.name }}
           context: kafka-ui-api

.github/workflows/separate_env_public_create.yml

@@ -47,7 +47,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-buildx-
       - name: Configure AWS credentials for Kafka-UI account
-        uses: aws-actions/configure-aws-credentials@v1
+        uses: aws-actions/configure-aws-credentials@v2
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -57,7 +57,7 @@ jobs:
         uses: aws-actions/amazon-ecr-login@v1
       - name: Build and push
         id: docker_build_and_push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           builder: ${{ steps.buildx.outputs.name }}
           context: kafka-ui-api

.github/workflows/terraform-deploy.yml

@@ -26,7 +26,7 @@ jobs:
           echo "Terraform will be triggered in this dir $TF_DIR"
 
       - name: Configure AWS credentials for Kafka-UI account
-        uses: aws-actions/configure-aws-credentials@v1
+        uses: aws-actions/configure-aws-credentials@v2
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

CONTRIBUTING.md

@@ -1,3 +1,5 @@
+This guide is an exact copy of the same documented located [in our official docs](https://docs.kafka-ui.provectus.io/development/contributing). If there are any differences between the documents, the one located in our official docs should prevail.
+
 This guide aims to walk you through the process of working on issues and Pull Requests (PRs).
 
 Bear in mind that you will not be able to complete some steps on your own if you do not have a “write” permission. Feel free to reach out to the maintainers to help you unlock these activities.
@@ -20,7 +22,7 @@ You also need to consider labels. You can sort the issues by scope labels, such
 ## Grabbing the issue
 
 There is a bunch of criteria that make an issue feasible for development. <br/>
-The implementation of any features and/or their enhancements should be reasonable, must be backed by justified requirements (demanded by the community, [roadmap](documentation/project/ROADMAP.md) plans, etc.). The final decision is left for the maintainers' discretion.
+The implementation of any features and/or their enhancements should be reasonable, must be backed by justified requirements (demanded by the community, [roadmap](https://docs.kafka-ui.provectus.io/project/roadmap) plans, etc.). The final decision is left for the maintainers' discretion.
 
 All bugs should be confirmed as such (i.e. the behavior is unintended).
 
@@ -39,7 +41,7 @@ To keep the status of the issue clear to everyone, please keep the card's status
 
 ## Setting up a local development environment
 
-Please refer to [this guide](documentation/project/contributing/README.md).
+Please refer to [this guide](https://docs.kafka-ui.provectus.io/development/contributing).
 
 # Pull Requests
 

README.md

@@ -1,21 +1,31 @@
 ![UI for Apache Kafka logo](documentation/images/kafka-ui-logo.png) UI for Apache Kafka 
 ------------------
 #### Versatile, fast and lightweight web UI for managing Apache Kafka® clusters. Built by developers, for developers.
+<br/>
 
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/provectus/kafka-ui/blob/master/LICENSE)
 ![UI for Apache Kafka Price Free](documentation/images/free-open-source.svg)
 [![Release version](https://img.shields.io/github/v/release/provectus/kafka-ui)](https://github.com/provectus/kafka-ui/releases)
 [![Chat with us](https://img.shields.io/discord/897805035122077716)](https://discord.gg/4DWzD7pGE5)
+[![Docker pulls](https://img.shields.io/docker/pulls/provectuslabs/kafka-ui)](https://hub.docker.com/r/provectuslabs/kafka-ui)
 
-### DISCLAIMER
-<em>UI for Apache Kafka is a free tool built and supported by the open-source community. Curated by Provectus, it will remain free and open-source, without any paid features or subscription plans to be added in the future.
-Looking for the help of Kafka experts? Provectus can help you design, build, deploy, and manage Apache Kafka clusters and streaming applications. Discover [Professional Services for Apache Kafka](https://provectus.com/professional-services-apache-kafka/), to unlock the full potential of Kafka in your enterprise! </em>
-
+<p align="center">
+    <a href="https://docs.kafka-ui.provectus.io/">DOCS</a> • 
+    <a href="https://docs.kafka-ui.provectus.io/configuration/quick-start">QUICK START</a> • 
+    <a href="https://discord.gg/4DWzD7pGE5">COMMUNITY DISCORD</a>
+    <br/>
+    <a href="https://aws.amazon.com/marketplace/pp/prodview-ogtt5hfhzkq6a">AWS Marketplace</a>  •
+    <a href="https://www.producthunt.com/products/ui-for-apache-kafka/reviews/new">ProductHunt</a>
+</p>
 
 #### UI for Apache Kafka is a free, open-source web UI to monitor and manage Apache Kafka clusters.
 
 UI for Apache Kafka is a simple tool that makes your data flows observable, helps find and troubleshoot issues faster and deliver optimal performance. Its lightweight dashboard makes it easy to track key metrics of your Kafka clusters - Brokers, Topics, Partitions, Production, and Consumption.
 
+### DISCLAIMER
+<em>UI for Apache Kafka is a free tool built and supported by the open-source community. Curated by Provectus, it will remain free and open-source, without any paid features or subscription plans to be added in the future.
+Looking for the help of Kafka experts? Provectus can help you design, build, deploy, and manage Apache Kafka clusters and streaming applications. Discover [Professional Services for Apache Kafka](https://provectus.com/professional-services-apache-kafka/), to unlock the full potential of Kafka in your enterprise! </em>
+
 Set up UI for Apache Kafka with just a couple of easy commands to visualize your Kafka data in a comprehensible way. You can run the tool locally or in
 the cloud.
 
@@ -29,10 +39,10 @@ the cloud.
 * **View Consumer Groups** — view per-partition parked offsets, combined and per-partition lag
 * **Browse Messages** — browse messages with JSON, plain text, and Avro encoding
 * **Dynamic Topic Configuration** — create and configure new topics with dynamic configuration
-* **Configurable Authentification** — secure your installation with optional Github/Gitlab/Google OAuth 2.0
-* **Custom serialization/deserialization plugins** - use a ready-to-go serde for your data like AWS Glue or Smile, or code your own!
-* **Role based access control** - [manage permissions](https://github.com/provectus/kafka-ui/wiki/RBAC-(role-based-access-control)) to access the UI with granular precision
-* **Data masking** - [obfuscate](https://github.com/provectus/kafka-ui/blob/master/documentation/guides/DataMasking.md) sensitive data in topic messages
+* **Configurable Authentification** — [secure](https://docs.kafka-ui.provectus.io/configuration/authentication) your installation with optional Github/Gitlab/Google OAuth 2.0
+* **Custom serialization/deserialization plugins** - [use](https://docs.kafka-ui.provectus.io/configuration/serialization-serde) a ready-to-go serde for your data like AWS Glue or Smile, or code your own!
+* **Role based access control** - [manage permissions](https://docs.kafka-ui.provectus.io/configuration/rbac-role-based-access-control) to access the UI with granular precision
+* **Data masking** - [obfuscate](https://docs.kafka-ui.provectus.io/configuration/data-masking) sensitive data in topic messages
 
 # The Interface
 UI for Apache Kafka wraps major functions of Apache Kafka with an intuitive user interface.
@@ -60,155 +70,68 @@ There are 3 supported types of schemas: Avro®, JSON Schema, and Protobuf schema
 
 ![Create Schema Registry](documentation/images/Create_schema.gif)
 
-Before producing avro-encoded messages, you have to add an avro schema for the topic in Schema Registry. Now all these steps are easy to do
+Before producing avro/protobuf encoded messages, you have to add a schema for the topic in Schema Registry. Now all these steps are easy to do
 with a few clicks in a user-friendly interface.
 
 ![Avro Schema Topic](documentation/images/Schema_Topic.gif)
 
 # Getting Started
 
-To run UI for Apache Kafka, you can use a pre-built Docker image or build it locally.
-
-## Configuration
-
-We have plenty of [docker-compose files](documentation/compose/DOCKER_COMPOSE.md) as examples. They're built for various configuration stacks.
-
-# Guides
-
-- [SSO configuration](documentation/guides/SSO.md)
-- [AWS IAM configuration](documentation/guides/AWS_IAM.md)
-- [Docker-compose files](documentation/compose/DOCKER_COMPOSE.md)
-- [Connection to a secure broker](documentation/guides/SECURE_BROKER.md)
-- [Configure seriliazation/deserialization plugins or code your own](documentation/guides/Serialization.md)
+To run UI for Apache Kafka, you can use either a pre-built Docker image or build it (or a jar file) yourself.
 
-### Configuration File
-Example of how to configure clusters in the [application-local.yml](https://github.com/provectus/kafka-ui/blob/master/kafka-ui-api/src/main/resources/application-local.yml) configuration file:
+## Quick start (Demo run)
 
-
-```sh
-kafka:
-  clusters:
-    -
-      name: local
-      bootstrapServers: localhost:29091
-      schemaRegistry: http://localhost:8085
-      schemaRegistryAuth:
-        username: username
-        password: password
-#     schemaNameTemplate: "%s-value"
-      metrics:
-        port: 9997
-        type: JMX
-    -
+```
+docker run -it -p 8080:8080 -e DYNAMIC_CONFIG_ENABLED=true provectuslabs/kafka-ui
 ```
 
-* `name`: cluster name
-* `bootstrapServers`: where to connect
-* `schemaRegistry`: schemaRegistry's address
-* `schemaRegistryAuth.username`: schemaRegistry's basic authentication username
-* `schemaRegistryAuth.password`: schemaRegistry's basic authentication password
-* `schemaNameTemplate`: how keys are saved to schemaRegistry
-* `metrics.port`: open JMX port of a broker
-* `metrics.type`: Type of metrics, either JMX or PROMETHEUS. Defaulted to JMX.
-* `readOnly`: enable read only mode
-
-Configure as many clusters as you need by adding their configs below separated with `-`.
-
-## Running a Docker Image
-The official Docker image for UI for Apache Kafka is hosted here: [hub.docker.com/r/provectuslabs/kafka-ui](https://hub.docker.com/r/provectuslabs/kafka-ui).
+Then access the web UI at [http://localhost:8080](http://localhost:8080)
 
-Launch Docker container in the background:
-```sh
+The command is sufficient to try things out. When you're done trying things out, you can proceed with a [persistent installation](https://docs.kafka-ui.provectus.io/configuration/quick-start#persistent-start)
 
-docker run -p 8080:8080 \
-	-e KAFKA_CLUSTERS_0_NAME=local \
-	-e KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=kafka:9092 \
-	-d provectuslabs/kafka-ui:latest
+## Persistent installation
 
 ```
-Then access the web UI at [http://localhost:8080](http://localhost:8080).
-Further configuration with environment variables - [see environment variables](#env_variables)
-
-### Docker Compose
-
-If you prefer to use `docker-compose` please refer to the [documentation](docker-compose.md).
-
-### Helm chart
-Helm chart could be found under [charts/kafka-ui](https://github.com/provectus/kafka-ui/tree/master/charts/kafka-ui) directory
+services:
+  kafka-ui:
+    container_name: kafka-ui
+    image: provectuslabs/kafka-ui:latest
+    ports:
+      - 8080:8080
+    environment:
+      DYNAMIC_CONFIG_ENABLED: true
+    volumes:
+      - ~/kui/config.yml:/etc/kafkaui/dynamic_config.yaml
+```
 
-Quick-start instruction [here](helm_chart.md)
+Please refer to our [configuration](https://docs.kafka-ui.provectus.io/configuration/quick-start) page to proceed with further app configuration.
 
-## Building With Docker
+## Some useful configuration related links
 
-### Prerequisites
+[Web UI Cluster Configuration Wizard](https://docs.kafka-ui.provectus.io/configuration/configuration-wizard)
 
-Check [prerequisites.md](documentation/project/contributing/prerequisites.md)
+[Configuration file explanation](https://docs.kafka-ui.provectus.io/configuration/configuration-file)
 
-### Building and Running
+[Docker Compose examples](https://docs.kafka-ui.provectus.io/configuration/compose-examples)
 
-Check [building.md](documentation/project/contributing/building.md)
+[Misc configuration properties](https://docs.kafka-ui.provectus.io/configuration/misc-configuration-properties)
 
-## Building Without Docker
+## Helm charts
 
-### Prerequisites
+[Quick start](https://docs.kafka-ui.provectus.io/configuration/helm-charts/quick-start)
 
-[Prerequisites](documentation/project/contributing/prerequisites.md) will mostly remain the same with the exception of docker.
+## Building from sources
 
-### Running without Building
+[Quick start](https://docs.kafka-ui.provectus.io/development/building/prerequisites) with building
 
-[How to run quickly without building](documentation/project/contributing/building-and-running-without-docker.md#run_without_docker_quickly)
+## Liveliness and readiness probes
+Liveliness and readiness endpoint is at `/actuator/health`.<br/>
+Info endpoint (build info) is located at `/actuator/info`.
 
-### Building and Running
+# Configuration options
 
-[How to build and run](documentation/project/contributing/building-and-running-without-docker.md#build_and_run_without_docker)
+All of the environment variables/config properties could be found [here](https://docs.kafka-ui.provectus.io/configuration/misc-configuration-properties).
 
-## Liveliness and readiness probes
-Liveliness and readiness endpoint is at `/actuator/health`.
-Info endpoint (build info) is located at `/actuator/info`.
+# Contributing
 
-## <a name="env_variables"></a> Environment Variables
-
-Alternatively, each variable of the .yml file can be set with an environment variable.
-For example, if you want to use an environment variable to set the `name` parameter, you can write it like this: `KAFKA_CLUSTERS_2_NAME`
-
-|Name               	|Description
-|-----------------------|-------------------------------
-|`SERVER_SERVLET_CONTEXT_PATH` | URI basePath
-|`LOGGING_LEVEL_ROOT`        	| Setting log level (trace, debug, info, warn, error). Default: info
-|`LOGGING_LEVEL_COM_PROVECTUS` |Setting log level (trace, debug, info, warn, error). Default: debug
-|`SERVER_PORT` |Port for the embedded server. Default: `8080`
-|`KAFKA_ADMIN-CLIENT-TIMEOUT` | Kafka API timeout in ms. Default: `30000`
-|`KAFKA_CLUSTERS_0_NAME` | Cluster name
-|`KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS` 	|Address where to connect
-|`KAFKA_CLUSTERS_0_KSQLDBSERVER` 	| KSQL DB server address
-|`KAFKA_CLUSTERS_0_KSQLDBSERVERAUTH_USERNAME` 	| KSQL DB server's basic authentication username
-|`KAFKA_CLUSTERS_0_KSQLDBSERVERAUTH_PASSWORD` 	| KSQL DB server's basic authentication password
-|`KAFKA_CLUSTERS_0_KSQLDBSERVERSSL_KEYSTORELOCATION`   	|Path to the JKS keystore to communicate to KSQL DB
-|`KAFKA_CLUSTERS_0_KSQLDBSERVERSSL_KEYSTOREPASSWORD`   	|Password of the JKS keystore for KSQL DB
-|`KAFKA_CLUSTERS_0_PROPERTIES_SECURITY_PROTOCOL` 	|Security protocol to connect to the brokers. For SSL connection use "SSL", for plaintext connection don't set this environment variable
-|`KAFKA_CLUSTERS_0_SCHEMAREGISTRY`   	|SchemaRegistry's address
-|`KAFKA_CLUSTERS_0_SCHEMAREGISTRYAUTH_USERNAME`   	|SchemaRegistry's basic authentication username
-|`KAFKA_CLUSTERS_0_SCHEMAREGISTRYAUTH_PASSWORD`   	|SchemaRegistry's basic authentication password
-|`KAFKA_CLUSTERS_0_SCHEMAREGISTRYSSL_KEYSTORELOCATION`   	|Path to the JKS keystore to communicate to SchemaRegistry
-|`KAFKA_CLUSTERS_0_SCHEMAREGISTRYSSL_KEYSTOREPASSWORD`   	|Password of the JKS keystore for SchemaRegistry
-|`KAFKA_CLUSTERS_0_METRICS_SSL`          |Enable SSL for Metrics (for PROMETHEUS metrics type). Default: false.
-|`KAFKA_CLUSTERS_0_METRICS_USERNAME` |Username for Metrics authentication
-|`KAFKA_CLUSTERS_0_METRICS_PASSWORD` |Password for Metrics authentication
-|`KAFKA_CLUSTERS_0_METRICS_KEYSTORELOCATION` |Path to the JKS keystore to communicate to metrics source (JMX/PROMETHEUS). For advanced setup, see `kafka-ui-jmx-secured.yml`
-|`KAFKA_CLUSTERS_0_METRICS_KEYSTOREPASSWORD` |Password of the JKS metrics keystore
-|`KAFKA_CLUSTERS_0_SCHEMANAMETEMPLATE` |How keys are saved to schemaRegistry
-|`KAFKA_CLUSTERS_0_METRICS_PORT`        	 |Open metrics port of a broker
-|`KAFKA_CLUSTERS_0_METRICS_TYPE`        	 |Type of metrics retriever to use. Valid values are JMX (default) or PROMETHEUS. If Prometheus, then metrics are read from prometheus-jmx-exporter instead of jmx
-|`KAFKA_CLUSTERS_0_READONLY`        	|Enable read-only mode. Default: false
-|`KAFKA_CLUSTERS_0_KAFKACONNECT_0_NAME` |Given name for the Kafka Connect cluster
-|`KAFKA_CLUSTERS_0_KAFKACONNECT_0_ADDRESS` |Address of the Kafka Connect service endpoint
-|`KAFKA_CLUSTERS_0_KAFKACONNECT_0_USERNAME`| Kafka Connect cluster's basic authentication username
-|`KAFKA_CLUSTERS_0_KAFKACONNECT_0_PASSWORD`| Kafka Connect cluster's basic authentication password
-|`KAFKA_CLUSTERS_0_KAFKACONNECT_0_KEYSTORELOCATION`| Path to the JKS keystore to communicate to Kafka Connect
-|`KAFKA_CLUSTERS_0_KAFKACONNECT_0_KEYSTOREPASSWORD`| Password of the JKS keystore for Kafka Connect
-|`KAFKA_CLUSTERS_0_POLLING_THROTTLE_RATE` |Max traffic rate (bytes/sec) that kafka-ui allowed to reach when polling messages from the cluster. Default: 0 (not limited)
-|`KAFKA_CLUSTERS_0_SSL_TRUSTSTORELOCATION`| Path to the JKS truststore to communicate to Kafka Connect, SchemaRegistry, KSQL, Metrics
-|`KAFKA_CLUSTERS_0_SSL_TRUSTSTOREPASSWORD`| Password of the JKS truststore for Kafka Connect, SchemaRegistry, KSQL, Metrics
-|`TOPIC_RECREATE_DELAY_SECONDS` |Time delay between topic deletion and topic creation attempts for topic recreate functionality. Default: 1
-|`TOPIC_RECREATE_MAXRETRIES`  |Number of attempts of topic creation after topic deletion for topic recreate functionality. Default: 15
-|`DYNAMIC_CONFIG_ENABLED`|Allow to change application config in runtime. Default: false.
+Please refer to [contributing guide](https://docs.kafka-ui.provectus.io/development/contributing), we'll guide you from there.

charts/kafka-ui/Chart.yaml

@@ -2,6 +2,6 @@ apiVersion: v2
 name: kafka-ui
 description: A Helm chart for kafka-UI
 type: application
-version: 0.6.0
-appVersion: v0.6.0
+version: 0.6.1
+appVersion: v0.6.1
 icon: https://github.com/provectus/kafka-ui/raw/master/documentation/images/kafka-ui-logo.png

charts/kafka-ui/README.md

@@ -1,34 +1 @@
-# Kafka-UI Helm Chart
-
-## Configuration
-
-Most of the Helm charts parameters are common, follow table describe unique parameters related to application configuration.
-
-### Kafka-UI parameters
-
-| Parameter                                | Description                                                                                                                                    | Default |
-| ---------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------- | ------- |
-| `existingConfigMap`                      | Name of the existing ConfigMap with Kafka-UI environment variables                                                                             | `nil`   |
-| `existingSecret`                         | Name of the existing Secret with Kafka-UI environment variables                                                                                | `nil`   |
-| `envs.secret`                            | Set of the sensitive environment variables to pass to Kafka-UI                                                                                 | `{}`    |
-| `envs.config`                            | Set of the environment variables to pass to Kafka-UI                                                                                           | `{}`    |
-| `yamlApplicationConfigConfigMap`         | Map with name and keyName keys, name refers to the existing ConfigMap, keyName refers to the ConfigMap key with Kafka-UI config in Yaml format | `{}`    |
-| `yamlApplicationConfig`                  | Kafka-UI config in Yaml format                                                                                                                 | `{}`    |
-| `networkPolicy.enabled`                  | Enable network policies                                                                                                                        | `false` |
-| `networkPolicy.egressRules.customRules`  | Custom network egress policy rules                                                                                                             | `[]`    |
-| `networkPolicy.ingressRules.customRules` | Custom network ingress policy rules                                                                                                            | `[]`    |
-| `podLabels`                              | Extra labels for Kafka-UI pod                                                                                                                  | `{}`    |
-
-
-## Example
-
-To install Kafka-UI need to execute follow:
-``` bash
-helm repo add kafka-ui https://provectus.github.io/kafka-ui
-helm install kafka-ui kafka-ui/kafka-ui --set envs.config.KAFKA_CLUSTERS_0_NAME=local --set envs.config.KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=kafka:9092
-```
-To connect to Kafka-UI web application need to execute:
-``` bash
-kubectl port-forward svc/kafka-ui 8080:80
-```
-Open the `http://127.0.0.1:8080` on the browser to access Kafka-UI.
+Please refer to our [documentation](https://docs.kafka-ui.provectus.io/configuration/helm-charts) to get some info on our helm charts.

docker-compose.md

@@ -1,43 +0,0 @@
-# Quick Start with docker-compose
-
-Environment variables documentation - [see usage](README.md#env_variables).<br/>
-We have plenty of example files with more complex configurations. Please check them out in ``docker`` directory.
-
-* Add a new service in docker-compose.yml
-
-```yaml
-version: '2'
-services:
-  kafka-ui:
-    image: provectuslabs/kafka-ui
-    container_name: kafka-ui
-    ports:
-      - "8080:8080"
-    restart: always
-    environment:
-      - KAFKA_CLUSTERS_0_NAME=local
-      - KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=kafka:9092
-```
-
-* If you prefer UI for Apache Kafka in read only mode
-   
-```yaml
-version: '2'
-services:
-  kafka-ui:
-    image: provectuslabs/kafka-ui
-    container_name: kafka-ui
-    ports:
-      - "8080:8080"
-    restart: always
-    environment:
-      - KAFKA_CLUSTERS_0_NAME=local
-      - KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=kafka:9092
-      - KAFKA_CLUSTERS_0_READONLY=true
-```
-  
-* Start UI for Apache Kafka process
-
-```bash
-docker-compose up -d kafka-ui
-```

documentation/compose/e2e-tests.yaml

@@ -11,14 +11,14 @@ services:
       test: wget --no-verbose --tries=1 --spider  http://localhost:8080/actuator/health
       interval: 30s
       timeout: 10s
-      retries: 10  
+      retries: 10
     depends_on:
-        kafka0:
-          condition: service_healthy
-        schemaregistry0:
-          condition: service_healthy
-        kafka-connect0:
-          condition: service_healthy
+      kafka0:
+        condition: service_healthy
+      schemaregistry0:
+        condition: service_healthy
+      kafka-connect0:
+        condition: service_healthy
     environment:
       KAFKA_CLUSTERS_0_NAME: local
       KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka0:29092
@@ -33,10 +33,10 @@ services:
     hostname: kafka0
     container_name: kafka0
     healthcheck:
-     test: unset JMX_PORT && KAFKA_JMX_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=kafka0 -Dcom.sun.management.jmxremote.rmi.port=9999" && kafka-broker-api-versions --bootstrap-server=localhost:9092
-     interval: 30s
-     timeout: 10s
-     retries: 10
+      test: unset JMX_PORT && KAFKA_JMX_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=kafka0 -Dcom.sun.management.jmxremote.rmi.port=9999" && kafka-broker-api-versions --bootstrap-server=localhost:9092
+      interval: 30s
+      timeout: 10s
+      retries: 10
     ports:
       - "9092:9092"
       - "9997:9997"
@@ -68,12 +68,12 @@ services:
       - 8085:8085
     depends_on:
       kafka0:
-          condition: service_healthy
+        condition: service_healthy
     healthcheck:
-     test: ["CMD", "timeout", "1", "curl", "--silent", "--fail", "http://schemaregistry0:8085/subjects"]
-     interval: 30s
-     timeout: 10s
-     retries: 10
+      test: [ "CMD", "timeout", "1", "curl", "--silent", "--fail", "http://schemaregistry0:8085/subjects" ]
+      interval: 30s
+      timeout: 10s
+      retries: 10
     environment:
       SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS: PLAINTEXT://kafka0:29092
       SCHEMA_REGISTRY_KAFKASTORE_SECURITY_PROTOCOL: PLAINTEXT
@@ -93,11 +93,11 @@ services:
       - 8083:8083
     depends_on:
       kafka0:
-          condition: service_healthy
+        condition: service_healthy
       schemaregistry0:
-          condition: service_healthy
+        condition: service_healthy
     healthcheck:
-      test: ["CMD", "nc", "127.0.0.1", "8083"]
+      test: [ "CMD", "nc", "127.0.0.1", "8083" ]
       interval: 30s
       timeout: 10s
       retries: 10
@@ -118,8 +118,8 @@ services:
       CONNECT_INTERNAL_VALUE_CONVERTER: org.apache.kafka.connect.json.JsonConverter
       CONNECT_REST_ADVERTISED_HOST_NAME: kafka-connect0
       CONNECT_PLUGIN_PATH: "/usr/share/java,/usr/share/confluent-hub-components"
-#      AWS_ACCESS_KEY_ID: ""
-#      AWS_SECRET_ACCESS_KEY: ""
+  #      AWS_ACCESS_KEY_ID: ""
+  #      AWS_SECRET_ACCESS_KEY: ""
 
   kafka-init-topics:
     image: confluentinc/cp-kafka:7.2.1
@@ -127,7 +127,7 @@ services:
       - ./message.json:/data/message.json
     depends_on:
       kafka0:
-          condition: service_healthy
+        condition: service_healthy
     command: "bash -c 'echo Waiting for Kafka to be ready... && \
                cub kafka-ready -b kafka0:29092 1 30 && \
                kafka-topics --create --topic users --partitions 3 --replication-factor 1 --if-not-exists --bootstrap-server kafka0:29092 && \
@@ -142,10 +142,10 @@ services:
     ports:
       - 5432:5432
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U dev_user"]
+      test: [ "CMD-SHELL", "pg_isready -U dev_user" ]
       interval: 10s
       timeout: 5s
-      retries: 5  
+      retries: 5
     environment:
       POSTGRES_USER: 'dev_user'
       POSTGRES_PASSWORD: '12345'
@@ -154,7 +154,7 @@ services:
     image: ellerbrock/alpine-bash-curl-ssl
     depends_on:
       postgres-db:
-          condition: service_healthy
+        condition: service_healthy
       kafka-connect0:
         condition: service_healthy
     volumes:
@@ -164,7 +164,7 @@ services:
   ksqldb:
     image: confluentinc/ksqldb-server:0.18.0
     healthcheck:
-      test: ["CMD", "timeout", "1", "curl", "--silent", "--fail", "http://localhost:8088/info"]
+      test: [ "CMD", "timeout", "1", "curl", "--silent", "--fail", "http://localhost:8088/info" ]
       interval: 30s
       timeout: 10s
       retries: 10
@@ -174,7 +174,7 @@ services:
       kafka-connect0:
         condition: service_healthy
       schemaregistry0:
-         condition: service_healthy
+        condition: service_healthy
     ports:
       - 8088:8088
     environment:

documentation/guides/AWS_IAM.md

@@ -1,41 +0,0 @@
-# How to configure AWS IAM Authentication
-
-UI for Apache Kafka comes with built-in [aws-msk-iam-auth](https://github.com/aws/aws-msk-iam-auth) library.
-
-You could pass sasl configs in properties section for each cluster.
-
-More details could be found here: [aws-msk-iam-auth](https://github.com/aws/aws-msk-iam-auth)
- 
-## Examples: 
-
-Please replace 
-* <KAFKA_URL> with broker list
-* <PROFILE_NAME> with your aws profile
-
-
-### Running From Docker Image
-
-```sh
-docker run -p 8080:8080 \
-    -e KAFKA_CLUSTERS_0_NAME=local \
-    -e KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=<KAFKA_URL> \
-    -e KAFKA_CLUSTERS_0_PROPERTIES_SECURITY_PROTOCOL=SASL_SSL \
-    -e KAFKA_CLUSTERS_0_PROPERTIES_SASL_MECHANISM=AWS_MSK_IAM \
-    -e KAFKA_CLUSTERS_0_PROPERTIES_SASL_CLIENT_CALLBACK_HANDLER_CLASS=software.amazon.msk.auth.iam.IAMClientCallbackHandler \
-    -e KAFKA_CLUSTERS_0_PROPERTIES_SASL_JAAS_CONFIG=software.amazon.msk.auth.iam.IAMLoginModule required awsProfileName="<PROFILE_NAME>"; \
-    -d provectuslabs/kafka-ui:latest 
-```
-
-### Configuring by application.yaml
-
-```yaml
-kafka:
-  clusters:
-    - name: local
-      bootstrapServers: <KAFKA_URL>
-      properties:
-        security.protocol: SASL_SSL
-        sasl.mechanism: AWS_MSK_IAM
-        sasl.client.callback.handler.class: software.amazon.msk.auth.iam.IAMClientCallbackHandler
-        sasl.jaas.config: software.amazon.msk.auth.iam.IAMLoginModule required awsProfileName="<PROFILE_NAME>";
-```

documentation/guides/DataMasking.md

@@ -1,123 +0,0 @@
-# Topics data masking
-
-You can configure kafka-ui to mask sensitive data shown in Messages page.
-
-Several masking policies supported:
-
-### REMOVE
-For json objects - remove target fields, otherwise - return "null" string.
-```yaml
-- type: REMOVE
-  fields: [ "id", "name" ]
-  ...
-```
-
-Apply examples:
-```
-{ "id": 1234, "name": { "first": "James" }, "age": 30 } 
- ->
-{ "age": 30 } 
-```
-```
-non-json string -> null
-```
-
-### REPLACE
-For json objects - replace target field's values with specified replacement string (by default with `***DATA_MASKED***`). Note: if target field's value is object, then replacement applied to all its fields recursively (see example). 
-
-```yaml
-- type: REPLACE
-  fields: [ "id", "name" ]
-  replacement: "***"  #optional, "***DATA_MASKED***" by default
-  ...
-```
-
-Apply examples:
-```
-{ "id": 1234, "name": { "first": "James", "last": "Bond" }, "age": 30 } 
- ->
-{ "id": "***", "name": { "first": "***", "last": "***" }, "age": 30 } 
-```
-```
-non-json string -> ***
-```
-
-### MASK
-Mask target field's values with specified masking characters, recursively (spaces and line separators will be kept as-is).
-`pattern` array specifies what symbols will be used to replace upper-case chars, lower-case chars, digits and other symbols correspondingly.
-
-```yaml
-- type: MASK
-  fields: [ "id", "name" ]
-  pattern: ["A", "a", "N", "_"]   # optional, default is ["X", "x", "n", "-"]
-  ...
-```
-
-Apply examples:
-```
-{ "id": 1234, "name": { "first": "James", "last": "Bond!" }, "age": 30 } 
- ->
-{ "id": "NNNN", "name": { "first": "Aaaaa", "last": "Aaaa_" }, "age": 30 } 
-```
-```
-Some string! -> Aaaa aaaaaa_
-```
-
-----
-
-For each policy, if `fields` not specified, then policy will be applied to all object's fields or whole string if it is not a json-object.
-
-You can specify which masks will be applied to topic's keys/values. Multiple policies will be applied if topic matches both policy's patterns.
-
-Yaml configuration example:
-```yaml
-kafka:
-  clusters:
-    - name: ClusterName
-      # Other Cluster configuration omitted ... 
-      masking:
-        - type: REMOVE
-          fields: [ "id" ]
-          topicKeysPattern: "events-with-ids-.*"
-          topicValuesPattern: "events-with-ids-.*"
-          
-        - type: REPLACE
-          fields: [ "companyName", "organizationName" ]
-          replacement: "***MASKED_ORG_NAME***"   #optional
-          topicValuesPattern: "org-events-.*"
-        
-        - type: MASK
-          fields: [ "name", "surname" ]
-          pattern: ["A", "a", "N", "_"]  #optional
-          topicValuesPattern: "user-states"
-
-        - type: MASK
-          topicValuesPattern: "very-secured-topic"
-```
-
-Same configuration in env-vars fashion:
-```
-...
-KAFKA_CLUSTERS_0_MASKING_0_TYPE: REMOVE
-KAFKA_CLUSTERS_0_MASKING_0_FIELDS_0: "id"
-KAFKA_CLUSTERS_0_MASKING_0_TOPICKEYSPATTERN: "events-with-ids-.*"
-KAFKA_CLUSTERS_0_MASKING_0_TOPICVALUESPATTERN: "events-with-ids-.*"
-
-KAFKA_CLUSTERS_0_MASKING_1_TYPE: REPLACE
-KAFKA_CLUSTERS_0_MASKING_1_FIELDS_0: "companyName"
-KAFKA_CLUSTERS_0_MASKING_1_FIELDS_1: "organizationName"
-KAFKA_CLUSTERS_0_MASKING_1_REPLACEMENT: "***MASKED_ORG_NAME***"
-KAFKA_CLUSTERS_0_MASKING_1_TOPICVALUESPATTERN: "org-events-.*"
-
-KAFKA_CLUSTERS_0_MASKING_2_TYPE: MASK
-KAFKA_CLUSTERS_0_MASKING_2_FIELDS_0: "name"
-KAFKA_CLUSTERS_0_MASKING_2_FIELDS_1: "surname"
-KAFKA_CLUSTERS_0_MASKING_2_PATTERN_0: 'A'
-KAFKA_CLUSTERS_0_MASKING_2_PATTERN_1: 'a'
-KAFKA_CLUSTERS_0_MASKING_2_PATTERN_2: 'N'
-KAFKA_CLUSTERS_0_MASKING_2_PATTERN_3: '_'
-KAFKA_CLUSTERS_0_MASKING_2_TOPICVALUESPATTERN: "user-states"
-
-KAFKA_CLUSTERS_0_MASKING_3_TYPE: MASK
-KAFKA_CLUSTERS_0_MASKING_3_TOPICVALUESPATTERN: "very-secured-topic"
-```

documentation/guides/Protobuf.md

@@ -1,55 +0,0 @@
-# Kafkaui Protobuf Support
-
-### This document is deprecated, please see examples in [Serialization document](Serialization.md).
-
-Kafkaui supports deserializing protobuf messages in two ways:
-1. Using Confluent Schema Registry's [protobuf support](https://docs.confluent.io/platform/current/schema-registry/serdes-develop/serdes-protobuf.html).
-2. Supplying a protobuf file as well as a configuration that maps topic names to protobuf types.
-
-## Configuring Kafkaui with a Protobuf File
-
-To configure Kafkaui to deserialize protobuf messages using a supplied protobuf schema add the following to the config:
-```yaml
-kafka:
-  clusters:
-    - # Cluster configuration omitted...
-      # protobufFilesDir specifies root location for proto files (will be scanned recursively)
-      # NOTE: if 'protobufFilesDir' specified, then 'protobufFile' and 'protobufFiles' settings will be ignored
-      protobufFilesDir: "/path/to/my-protobufs"
-      # (DEPRECATED) protobufFile is the path to the protobuf schema. (deprecated: please use "protobufFiles")
-      protobufFile: path/to/my.proto
-      # (DEPRECATED) protobufFiles is the location of one or more protobuf schemas
-      protobufFiles:
-        - /path/to/my-protobufs/my.proto
-        - /path/to/my-protobufs/another.proto
-        - /path/to/my-protobufs:test/test.proto
-      # protobufMessageName is the default protobuf type that is used to deserialize
-      # the message's value if the topic is not found in protobufMessageNameByTopic.    
-      protobufMessageName: my.DefaultValType
-      # protobufMessageNameByTopic is a mapping of topic names to protobuf types.
-      # This mapping is required and is used to deserialize the Kafka message's value.
-      protobufMessageNameByTopic:
-        topic1: my.Type1
-        topic2: my.Type2
-      # protobufMessageNameForKey is the default protobuf type that is used to deserialize
-      # the message's key if the topic is not found in protobufMessageNameForKeyByTopic.
-      protobufMessageNameForKey: my.DefaultKeyType
-      # protobufMessageNameForKeyByTopic is a mapping of topic names to protobuf types.
-      # This mapping is optional and is used to deserialize the Kafka message's key.
-      # If a protobuf type is not found for a topic's key, the key is deserialized as a string,
-      # unless protobufMessageNameForKey is specified.
-      protobufMessageNameForKeyByTopic:
-        topic1: my.KeyType1
-```
-
-Same config with flattened config (for docker-compose):
-
-```text
-kafka.clusters.0.protobufFiles.0: /path/to/my.proto
-kafka.clusters.0.protobufFiles.1: /path/to/another.proto
-kafka.clusters.0.protobufMessageName: my.DefaultValType
-kafka.clusters.0.protobufMessageNameByTopic.topic1: my.Type1
-kafka.clusters.0.protobufMessageNameByTopic.topic2: my.Type2
-kafka.clusters.0.protobufMessageNameForKey: my.DefaultKeyType
-kafka.clusters.0.protobufMessageNameForKeyByTopic.topic1: my.KeyType1
-```

documentation/guides/SASL_SCRAM.md

@@ -1,58 +0,0 @@
-# How to configure SASL SCRAM Authentication
-
-You could pass sasl configs in properties section for each cluster.
- 
-## Examples: 
-
-Please replace 
-- <KAFKA_NAME> with cluster name
-- <KAFKA_URL> with broker list
-- <KAFKA_USERNAME> with username
-- <KAFKA_PASSWORD> with password
-
-### Running From Docker Image
-
-```sh
-docker run -p 8080:8080 \
-    -e KAFKA_CLUSTERS_0_NAME=<KAFKA_NAME> \
-    -e KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=<KAFKA_URL> \
-    -e KAFKA_CLUSTERS_0_PROPERTIES_SECURITY_PROTOCOL=SASL_SSL \
-    -e KAFKA_CLUSTERS_0_PROPERTIES_SASL_MECHANISM=SCRAM-SHA-512 \     
-    -e KAFKA_CLUSTERS_0_PROPERTIES_SASL_JAAS_CONFIG=org.apache.kafka.common.security.scram.ScramLoginModule required username="<KAFKA_USERNAME>" password="<KAFKA_PASSWORD>"; \
-    -d provectuslabs/kafka-ui:latest 
-```
-
-### Running From Docker-compose file
-
-```yaml
-
-version: '3.4'
-services:
-  
-  kafka-ui:
-    image: provectuslabs/kafka-ui
-    container_name: kafka-ui
-    ports:
-      - "888:8080"
-    restart: always
-    environment:
-      - KAFKA_CLUSTERS_0_NAME=<KAFKA_NAME>
-      - KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=<KAFKA_URL>
-      - KAFKA_CLUSTERS_0_PROPERTIES_SECURITY_PROTOCOL=SASL_SSL
-      - KAFKA_CLUSTERS_0_PROPERTIES_SASL_MECHANISM=SCRAM-SHA-512
-      - KAFKA_CLUSTERS_0_PROPERTIES_SASL_JAAS_CONFIG=org.apache.kafka.common.security.scram.ScramLoginModule required username="<KAFKA_USERNAME>" password="<KAFKA_PASSWORD>";
-      - KAFKA_CLUSTERS_0_PROPERTIES_PROTOCOL=SASL
-```
-
-### Configuring by application.yaml
-
-```yaml
-kafka:
-  clusters:
-    - name: local
-      bootstrapServers: <KAFKA_URL>
-      properties:
-        security.protocol: SASL_SSL
-        sasl.mechanism: SCRAM-SHA-512        
-        sasl.jaas.config: org.apache.kafka.common.security.scram.ScramLoginModule required username="<KAFKA_USERNAME>" password="<KAFKA_PASSWORD>";
-```

documentation/guides/SECURE_BROKER.md

@@ -1,7 +0,0 @@
-## Connecting to a Secure Broker
-
-The app supports TLS (SSL) and SASL connections for [encryption and authentication](http://kafka.apache.org/090/documentation.html#security). <br/>
-
-### Running From Docker-compose file
-
-See [this](/documentation/compose/kafka-ssl.yml) docker-compose file reference for ssl-enabled kafka

documentation/guides/SSO.md

@@ -1,71 +0,0 @@
-# How to configure SSO
-SSO require additionaly to configure TLS for application, in that example we will use self-signed certificate, in case of use legal certificates please skip step 1.
-## Step 1
-At this step we will generate self-signed PKCS12 keypair.
-``` bash
-mkdir cert
-keytool -genkeypair -alias ui-for-apache-kafka -keyalg RSA -keysize 2048 \
-  -storetype PKCS12 -keystore cert/ui-for-apache-kafka.p12 -validity 3650
-```
-## Step 2
-Create new application in any SSO provider, we will continue with [Auth0](https://auth0.com).
-
-<img src="https://github.com/provectus/kafka-ui/raw/images/images/sso-new-app.png" width="70%"/>
-
-After that need to provide callback URLs, in our case we will use `https://127.0.0.1:8080/login/oauth2/code/auth0`
-
-<img src="https://github.com/provectus/kafka-ui/raw/images/images/sso-configuration.png" width="70%"/>
-
-This is a main parameters required for enabling SSO
-
-<img src="https://github.com/provectus/kafka-ui/raw/images/images/sso-parameters.png" width="70%"/>
-
-## Step 3
-To launch UI for Apache Kafka with enabled TLS and SSO run following:
-``` bash
-docker run -p 8080:8080 -v `pwd`/cert:/opt/cert -e AUTH_TYPE=LOGIN_FORM \
-  -e SECURITY_BASIC_ENABLED=true \
-  -e SERVER_SSL_KEY_STORE_TYPE=PKCS12 \
-  -e SERVER_SSL_KEY_STORE=/opt/cert/ui-for-apache-kafka.p12 \
-  -e SERVER_SSL_KEY_STORE_PASSWORD=123456 \
-  -e SERVER_SSL_KEY_ALIAS=ui-for-apache-kafka \
-  -e SERVER_SSL_ENABLED=true \
-  -e SPRING_SECURITY_OAUTH2_CLIENT_REGISTRATION_AUTH0_CLIENTID=uhvaPKIHU4ZF8Ne4B6PGvF0hWW6OcUSB \
-  -e SPRING_SECURITY_OAUTH2_CLIENT_REGISTRATION_AUTH0_CLIENTSECRET=YXfRjmodifiedTujnkVr7zuW9ECCAK4TcnCio-i \
-  -e SPRING_SECURITY_OAUTH2_CLIENT_PROVIDER_AUTH0_ISSUER_URI=https://dev-a63ggcut.auth0.com/ \
-  -e SPRING_SECURITY_OAUTH2_CLIENT_REGISTRATION_AUTH0_SCOPE=openid \
-  -e TRUST_STORE=/opt/cert/ui-for-apache-kafka.p12 \
-  -e TRUST_STORE_PASSWORD=123456 \
-provectuslabs/kafka-ui:latest
-```
-In the case with trusted CA-signed SSL certificate and SSL termination somewhere outside of application we can pass only SSO related environment variables:
-``` bash
-docker run -p 8080:8080 -v `pwd`/cert:/opt/cert -e AUTH_TYPE=OAUTH2 \
-  -e SPRING_SECURITY_OAUTH2_CLIENT_REGISTRATION_AUTH0_CLIENTID=uhvaPKIHU4ZF8Ne4B6PGvF0hWW6OcUSB \
-  -e SPRING_SECURITY_OAUTH2_CLIENT_REGISTRATION_AUTH0_CLIENTSECRET=YXfRjmodifiedTujnkVr7zuW9ECCAK4TcnCio-i \
-  -e SPRING_SECURITY_OAUTH2_CLIENT_PROVIDER_AUTH0_ISSUER_URI=https://dev-a63ggcut.auth0.com/ \
-  -e SPRING_SECURITY_OAUTH2_CLIENT_REGISTRATION_AUTH0_SCOPE=openid \
-provectuslabs/kafka-ui:latest
-```
-
-## Step 4 (Load Balancer HTTP) (optional)
-If you're using load balancer/proxy and use HTTP between the proxy and the app, you might want to set `server_forward-headers-strategy` to `native` as well (`SERVER_FORWARDHEADERSSTRATEGY=native`), for more info refer to [this issue](https://github.com/provectus/kafka-ui/issues/1017).
-
-## Step 5 (Azure) (optional)
-For Azure AD (Office365) OAUTH2 you'll want to add additional environment variables:
-
-```bash
-docker run -p 8080:8080 \
-        -e KAFKA_CLUSTERS_0_NAME="${cluster_name}"\
-        -e KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS="${kafka_listeners}" \
-        -e KAFKA_CLUSTERS_0_KAFKACONNECT_0_ADDRESS="${kafka_connect_servers}"
-        -e AUTH_TYPE=OAUTH2 \
-        -e SPRING_SECURITY_OAUTH2_CLIENT_REGISTRATION_AUTH0_CLIENTID=uhvaPKIHU4ZF8Ne4B6PGvF0hWW6OcUSB \
-        -e SPRING_SECURITY_OAUTH2_CLIENT_REGISTRATION_AUTH0_CLIENTSECRET=YXfRjmodifiedTujnkVr7zuW9ECCAK4TcnCio-i \
-        -e SPRING_SECURITY_OAUTH2_CLIENT_REGISTRATION_AUTH0_SCOPE="https://graph.microsoft.com/User.Read" \
-        -e SPRING_SECURITY_OAUTH2_CLIENT_PROVIDER_AUTH0_ISSUER_URI="https://login.microsoftonline.com/{tenant-id}/v2.0" \
-        -d provectuslabs/kafka-ui:latest"
-```
-
-Note that scope is created by default when Application registration is done in Azure portal.
-You'll need to update application registration manifest to include `"accessTokenAcceptedVersion": 2`

documentation/guides/Serialization.md

@@ -1,167 +0,0 @@
-## Serialization and deserialization and custom plugins
-
-Kafka-ui supports multiple ways to serialize/deserialize data.
-
-
-### Int32, Int64, UInt32, UInt64
-Big-endian 4/8 bytes representation of signed/unsigned integers.
-
-### Base64
-Base64 (RFC4648) binary data representation. Can be useful in case if the actual data is not important, but exactly the same (byte-wise) key/value should be send.
-
-### String 
-Treats binary data as a string in specified encoding. Default encoding is UTF-8.
-
-Class name: `com.provectus.kafka.ui.serdes.builtin.StringSerde`
-
-Sample configuration (if you want to overwrite default configuration):
-```yaml
-kafka:
-  clusters:
-    - name: Cluster1
-      # Other Cluster configuration omitted ... 
-      serde:
-          # registering String serde with custom config
-        - name: AsciiString
-          className: com.provectus.kafka.ui.serdes.builtin.StringSerde
-          properties:
-            encoding: "ASCII"
-        
-          # overriding build-it String serde config   
-        - name: String 
-          properties:
-            encoding: "UTF-16"
-```
-
-### Protobuf
-
-Class name: `com.provectus.kafka.ui.serdes.builtin.ProtobufFileSerde`
-
-Sample configuration:
-```yaml
-kafka:
-  clusters:
-    - name: Cluster1
-      # Other Cluster configuration omitted ... 
-      serde:
-        - name: ProtobufFile
-          properties:
-            # path to the protobuf schema files directory
-            protobufFilesDir: "path/to/protofiles"
-            # default protobuf type that is used for KEY serialization/deserialization
-            # optional
-            protobufMessageNameForKey: my.Type1
-            # mapping of topic names to protobuf types, that will be used for KEYS  serialization/deserialization
-            # optional
-            protobufMessageNameForKeyByTopic:
-              topic1: my.KeyType1
-              topic2: my.KeyType2
-            # default protobuf type that is used for VALUE serialization/deserialization
-            # optional, if not set - first type in file will be used as default
-            protobufMessageName: my.Type1
-            # mapping of topic names to protobuf types, that will be used for VALUES  serialization/deserialization
-            # optional
-            protobufMessageNameByTopic:
-              topic1: my.Type1
-              "topic.2": my.Type2
-```
-Docker-compose sample for Protobuf serialization is [here](../compose/kafka-ui-serdes.yaml).
-
-Legacy configuration for protobuf is [here](Protobuf.md).
-
-### SchemaRegistry
-SchemaRegistry serde is automatically configured if schema registry properties set on cluster level.
-But you can add new SchemaRegistry-typed serdes that will connect to another schema-registry instance. 
-
-Class name: `com.provectus.kafka.ui.serdes.builtin.sr.SchemaRegistrySerde`
-
-Sample configuration:
-```yaml
-kafka:
-  clusters:
-    - name: Cluster1
-      # this url will be used by "SchemaRegistry" by default
-      schemaRegistry: http://main-schema-registry:8081
-      serde:
-        - name: AnotherSchemaRegistry
-          className: com.provectus.kafka.ui.serdes.builtin.sr.SchemaRegistrySerde
-          properties:
-            url:  http://another-schema-registry:8081
-            # auth properties, optional
-            username: nameForAuth
-            password: P@ssW0RdForAuth
-        
-          # and also add another SchemaRegistry serde
-        - name: ThirdSchemaRegistry
-          className: com.provectus.kafka.ui.serdes.builtin.sr.SchemaRegistrySerde
-          properties:
-            url:  http://another-yet-schema-registry:8081
-```
-
-## Setting serdes for specific topics
-You can specify preferable serde for topics key/value. This serde will be chosen by default in UI on topic's view/produce pages. 
-To do so, set `topicValuesPattern/topicValuesPattern` properties for the selected serde. Kafka-ui will choose a first serde that matches specified pattern.
-
-Sample configuration:
-```yaml
-kafka:
-  clusters:
-    - name: Cluster1
-      serde:
-        - name: String
-          topicKeysPattern: click-events|imp-events
-        
-        - name: Int64
-          topicKeysPattern: ".*-events"
-        
-        - name: SchemaRegistry
-          topicValuesPattern: click-events|imp-events
-```
-
-
-## Default serdes
-You can specify which serde will be chosen in UI by default if no other serdes selected via `topicKeysPattern/topicValuesPattern` settings.
-
-Sample configuration:
-```yaml
-kafka:
-  clusters:
-    - name: Cluster1
-      defaultKeySerde: Int32
-      defaultValueSerde: String
-      serde:
-        - name: Int32
-          topicKeysPattern: click-events|imp-events
-```
-
-## Fallback
-If selected serde couldn't be applied (exception was thrown), then fallback (String serde with UTF-8 encoding) serde will be applied. Such messages will be specially highlighted in UI.
-
-## Custom pluggable serde registration
-You can implement your own serde and register it in kafka-ui application.
-To do so:
-1. Add `kafka-ui-serde-api` dependency (should be downloadable via maven central)
-2. Implement `com.provectus.kafka.ui.serde.api.Serde` interface. See javadoc for implementation requirements.
-3. Pack your serde into uber jar, or provide directory with no-dependency jar and it's dependencies jars
-
-
-Example pluggable serdes :
-https://github.com/provectus/kafkaui-smile-serde
-https://github.com/provectus/kafkaui-glue-sr-serde
-
-Sample configuration:
-```yaml
-kafka:
-  clusters:
-    - name: Cluster1
-      serde:
-        - name: MyCustomSerde
-          className: my.lovely.org.KafkaUiSerde
-          filePath: /var/lib/kui-serde/my-kui-serde.jar
-          
-        - name: MyCustomSerde2
-          className: my.lovely.org.KafkaUiSerde2
-          filePath: /var/lib/kui-serde2
-          properties:
-            prop1: v1
-```

documentation/project/ROADMAP.md

@@ -1,22 +0,0 @@
-Kafka-UI Project Roadmap
-====================
-
-Roadmap exists in a form of a github project board and is located [here](https://github.com/provectus/kafka-ui/projects/8).
-
-### How to use this document
-
-The roadmap provides a list of features we decided to prioritize in project development. It should serve as a reference point to understand projects' goals.
-
-We do prioritize them based on the feedback from the community, our own vision and other conditions and circumstances. 
-
-The roadmap sets the general way of development. The roadmap is mostly about long-term features. All the features could be re-prioritized, rescheduled or canceled.
-
-If there's no feature `X`, that **doesn't** mean we're **not** going to implement it. Feel free to raise the issue for the consideration. <br/>
-If a feature you want to see live is not present on roadmap, but there's an issue for the feature, feel free to vote for it using reactions in the issue.
-
-
-### How to contribute
-
-Since the roadmap consists mostly of big long-term features, implementing them might be not easy for a beginner outside collaborator.
-
-A good starting point is checking the [CONTRIBUTING.md](https://github.com/provectus/kafka-ui/blob/master/CONTRIBUTING.md) document.

documentation/project/contributing/README.md

@@ -1,8 +0,0 @@
-# Contributing guidelines
-
-### Set up the local environment for development
-
-* [Prerequisites](prerequisites.md)
-<!--* [Setting up git](set-up-git.md)-->
-* [Building the app](building.md)
-* [Writing tests](testing.md)

documentation/project/contributing/building-and-running-without-docker.md

@@ -1,24 +0,0 @@
-# Build & Run Without Docker
-
-Once you installed the prerequisites and cloned the repository, run the following steps in your project directory:
-
-## <a name="run_without_docker_quickly"></a> Running Without Docker Quickly
-
-- [Download the latest kafka-ui jar file](https://github.com/provectus/kafka-ui/releases)
-#### <a name="run_kafkaui_jar_file"></a> Execute the jar
-```sh
-java -Dspring.config.additional-location=<path-to-application-local.yml> -jar <path-to-kafka-ui-jar>
-```
-- Example of how to configure clusters in the [application-local.yml](https://github.com/provectus/kafka-ui/blob/master/kafka-ui-api/src/main/resources/application-local.yml) configuration file.
-
-## <a name="build_and_run_without_docker"></a> Building And Running Without Docker
-
-> **_NOTE:_**  If you want to get kafka-ui up and running locally quickly without building the jar file manually, then just follow [Running Without Docker Quickly](#run_without_docker_quickly)
-
-> Comment out `docker-maven-plugin` plugin in `kafka-ui-api` pom.xml
-
-- [Command to build the jar](./building.md#cmd_to_build_kafkaui_without_docker)
-
-> Once your build is successful and the jar file named kafka-ui-api-0.0.1-SNAPSHOT.jar is generated inside `kafka-ui-api/target`.
-
-- [Execute the jar](#run_kafkaui_jar_file)

documentation/project/contributing/building.md

@@ -1,63 +0,0 @@
-# Build & Run
-
-Once you installed the prerequisites and cloned the repository, run the following steps in your project directory:
-
-## Step 1 : Build
-> **_NOTE:_**  If you are an macOS M1 User then please keep in mind below things
-
-> Make sure you have ARM supported java installed
-
-> Skip the maven tests as they might not be successful
-
-- Build a docker image with the app
-```sh
-./mvnw clean install -Pprod
-```
-- if you need to build the frontend `kafka-ui-react-app`, go here
-     - [kafka-ui-react-app-build-documentation](../../../kafka-ui-react-app/README.md)
-
-<a name="cmd_to_build_kafkaui_without_docker"></a>
-- In case you want to build `kafka-ui-api` by skipping the tests
-```sh
-./mvnw clean install -Dmaven.test.skip=true -Pprod
-```
-
-- To build only the `kafka-ui-api` you can use this command:
-```sh
-./mvnw -f kafka-ui-api/pom.xml clean install -Pprod -DskipUIBuild=true
-```
-
-If this step is successful, it should create a docker image named `provectuslabs/kafka-ui` with `latest` tag on your local machine except macOS M1.
-
-## Step 2 : Run
-#### Using Docker Compose
-> **_NOTE:_**  If you are an macOS M1 User then you can use arm64 supported docker compose script `./documentation/compose/kafka-ui-arm64.yaml`
- - Start the `kafka-ui` app using docker image built in step 1 along with Kafka clusters:
-```sh
-docker-compose -f ./documentation/compose/kafka-ui.yaml up -d
-```
-
-#### Using Spring Boot Run
- - If you want to start only kafka clusters (to run the `kafka-ui` app via `spring-boot:run`):
-```sh
-docker-compose -f ./documentation/compose/kafka-clusters-only.yaml up -d
-```
-- Then start the app.
-```sh
-./mvnw spring-boot:run -Pprod
-
-# or
-
-./mvnw spring-boot:run -Pprod -Dspring.config.location=file:///path/to/conf.yaml
-```
-
-#### Running in kubernetes
-- Using Helm Charts
-```sh bash
-helm repo add kafka-ui https://provectus.github.io/kafka-ui
-helm install kafka-ui kafka-ui/kafka-ui
-```
-To read more please follow to [chart documentation](../../../charts/kafka-ui/README.md).
-
-## Step 3 : Access Kafka-UI
- - To see the `kafka-ui` app running, navigate to http://localhost:8080.

documentation/project/contributing/prerequisites.md

@@ -1,42 +0,0 @@
-### Prerequisites
-
-This page explains how to get the software you need to use a Linux or macOS
-machine for local development.
-
-Before you begin contributing you must have:
-
-* A GitHub account
-* `Java` 17 or newer
-* `Git`
-* `Docker`
-
-### Installing prerequisites on macOS
-
-1. Install [brew](https://brew.sh/).
-2. Install brew cask:
-```sh
-brew cask
-```
-3. Install Eclipse Temurin 17 via Homebrew cask:
-```sh
-brew tap homebrew/cask-versions
-brew install temurin17
-```
-4. Verify Installation
-```sh
-java -version
-```
-Note : In case OpenJDK 17 is not set as your default Java, you can consider to include it in your `$PATH` after installation
-```sh
-export PATH="$(/usr/libexec/java_home -v 17)/bin:$PATH"
-export JAVA_HOME="$(/usr/libexec/java_home -v 17)"
-```
-
-## Tips
-
-Consider allocating not less than 4GB of memory for your docker.
-Otherwise, some apps within a stack (e.g. `kafka-ui.yaml`) might crash.
-
-## Where to go next
-
-In the next section, you'll [learn how to Build and Run kafka-ui](building.md).

documentation/project/contributing/set-up-git.md

@@ -1,8 +0,0 @@
-### Nothing special here yet.
-<!--
-TODO:
-
-1. Cloning
-2. Credentials set up (git user.name & email)
-3. Signing off (DCO)
--->

documentation/project/contributing/testing.md

@@ -1,28 +0,0 @@
-# Testing
-
-
-
-## Test suites
-
-
-## Writing new tests
-
-
-### Writing tests for new features
-
-
-### Writing tests for bug fixes
-
-
-### Writing new integration tests
-
-
-
-## Running tests
-
-### Unit Tests
-
-
-### Integration Tests
-
-

etc/checkstyle/checkstyle-e2e.xml

@@ -0,0 +1,333 @@
+<?xml version="1.0"?>
+<!DOCTYPE module PUBLIC
+        "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+        "https://checkstyle.org/dtds/configuration_1_3.dtd">
+
+<!--
+    Checkstyle configuration that checks the Google coding conventions from Google Java Style
+    that can be found at https://google.github.io/styleguide/javaguide.html
+
+    Checkstyle is very configurable. Be sure to read the documentation at
+    http://checkstyle.org (or in your downloaded distribution).
+
+    To completely disable a check, just comment it out or delete it from the file.
+    To suppress certain violations please review suppression filters.
+
+    Authors: Max Vetrenko, Ruslan Diachenko, Roman Ivanov.
+ -->
+
+<module name = "Checker">
+    <property name="charset" value="UTF-8"/>
+
+    <property name="severity" value="warning"/>
+
+    <property name="fileExtensions" value="java, properties, xml"/>
+    <!-- Excludes all 'module-info.java' files              -->
+    <!-- See https://checkstyle.org/config_filefilters.html -->
+    <module name="BeforeExecutionExclusionFileFilter">
+        <property name="fileNamePattern" value="module\-info\.java$"/>
+    </module>
+    <!-- https://checkstyle.org/config_filters.html#SuppressionFilter -->
+    <module name="SuppressionFilter">
+        <property name="file" value="${org.checkstyle.google.suppressionfilter.config}"
+                  default="checkstyle-suppressions.xml" />
+        <property name="optional" value="true"/>
+    </module>
+
+    <!-- Checks for whitespace                               -->
+    <!-- See http://checkstyle.org/config_whitespace.html -->
+    <module name="FileTabCharacter">
+        <property name="eachLine" value="true"/>
+    </module>
+
+    <module name="LineLength">
+        <property name="fileExtensions" value="java"/>
+        <property name="max" value="120"/>
+        <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
+    </module>
+
+    <module name="TreeWalker">
+        <module name="OuterTypeFilename"/>
+        <module name="IllegalTokenText">
+            <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>
+            <property name="format"
+                      value="\\u00(09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)"/>
+            <property name="message"
+                      value="Consider using special escape sequence instead of octal value or Unicode escaped value."/>
+        </module>
+        <module name="AvoidEscapedUnicodeCharacters">
+            <property name="allowEscapesForControlCharacters" value="true"/>
+            <property name="allowByTailComment" value="true"/>
+            <property name="allowNonPrintableEscapes" value="true"/>
+        </module>
+        <module name="AvoidStarImport"/>
+        <module name="OneTopLevelClass"/>
+        <module name="NoLineWrap">
+            <property name="tokens" value="PACKAGE_DEF, IMPORT, STATIC_IMPORT"/>
+        </module>
+        <module name="EmptyBlock">
+            <property name="option" value="TEXT"/>
+            <property name="tokens"
+                      value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
+        </module>
+        <module name="NeedBraces">
+            <property name="tokens"
+                      value="LITERAL_DO, LITERAL_ELSE, LITERAL_FOR, LITERAL_IF, LITERAL_WHILE"/>
+        </module>
+        <module name="LeftCurly">
+            <property name="tokens"
+                      value="ANNOTATION_DEF, CLASS_DEF, CTOR_DEF, ENUM_CONSTANT_DEF, ENUM_DEF,
+                    INTERFACE_DEF, LAMBDA, LITERAL_CASE, LITERAL_CATCH, LITERAL_DEFAULT,
+                    LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF,
+                    LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, METHOD_DEF,
+                    OBJBLOCK, STATIC_INIT"/>
+        </module>
+        <module name="RightCurly">
+            <property name="id" value="RightCurlySame"/>
+            <property name="tokens"
+                      value="LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE,
+                    LITERAL_DO"/>
+        </module>
+        <module name="RightCurly">
+            <property name="id" value="RightCurlyAlone"/>
+            <property name="option" value="alone"/>
+            <property name="tokens"
+                      value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, STATIC_INIT,
+                    INSTANCE_INIT, ANNOTATION_DEF, ENUM_DEF"/>
+        </module>
+        <module name="SuppressionXpathSingleFilter">
+            <!-- suppresion is required till https://github.com/checkstyle/checkstyle/issues/7541 -->
+            <property name="id" value="RightCurlyAlone"/>
+            <property name="query" value="//RCURLY[parent::SLIST[count(./*)=1]
+                                                 or preceding-sibling::*[last()][self::LCURLY]]"/>
+        </module>
+        <module name="WhitespaceAfter">
+            <property name="tokens"
+                      value="COMMA, SEMI, TYPECAST, LITERAL_IF, LITERAL_ELSE,
+                    LITERAL_WHILE, LITERAL_DO, LITERAL_FOR, DO_WHILE"/>
+        </module>
+        <module name="WhitespaceAround">
+            <property name="allowEmptyConstructors" value="true"/>
+            <property name="allowEmptyLambdas" value="true"/>
+            <property name="allowEmptyMethods" value="true"/>
+            <property name="allowEmptyTypes" value="true"/>
+            <property name="allowEmptyLoops" value="true"/>
+            <property name="tokens"
+                      value="ASSIGN, BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR,
+                    BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN, DO_WHILE, EQUAL, GE, GT, LAMBDA, LAND,
+                    LCURLY, LE, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY,
+                    LITERAL_FOR, LITERAL_IF, LITERAL_RETURN, LITERAL_SWITCH, LITERAL_SYNCHRONIZED,
+                     LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS, MINUS_ASSIGN, MOD, MOD_ASSIGN,
+                     NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION, RCURLY, SL, SLIST, SL_ASSIGN, SR,
+                     SR_ASSIGN, STAR, STAR_ASSIGN, LITERAL_ASSERT, TYPE_EXTENSION_AND"/>
+            <message key="ws.notFollowed"
+                     value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)"/>
+            <message key="ws.notPreceded"
+                     value="WhitespaceAround: ''{0}'' is not preceded with whitespace."/>
+        </module>
+        <module name="OneStatementPerLine"/>
+<!--        <module name="MultipleVariableDeclarations"/>-->
+        <module name="ArrayTypeStyle"/>
+        <module name="MissingSwitchDefault"/>
+        <module name="FallThrough"/>
+        <module name="UpperEll"/>
+        <module name="ModifierOrder"/>
+        <module name="EmptyLineSeparator">
+            <property name="tokens"
+                      value="PACKAGE_DEF, IMPORT, STATIC_IMPORT, CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
+                    STATIC_INIT, INSTANCE_INIT, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
+            <property name="allowNoEmptyLineBetweenFields" value="true"/>
+        </module>
+        <module name="SeparatorWrap">
+            <property name="id" value="SeparatorWrapDot"/>
+            <property name="tokens" value="DOT"/>
+            <property name="option" value="nl"/>
+        </module>
+        <module name="SeparatorWrap">
+            <property name="id" value="SeparatorWrapComma"/>
+            <property name="tokens" value="COMMA"/>
+            <property name="option" value="EOL"/>
+        </module>
+        <module name="SeparatorWrap">
+            <!-- ELLIPSIS is EOL until https://github.com/google/styleguide/issues/258 -->
+            <property name="id" value="SeparatorWrapEllipsis"/>
+            <property name="tokens" value="ELLIPSIS"/>
+            <property name="option" value="EOL"/>
+        </module>
+        <module name="SeparatorWrap">
+            <!-- ARRAY_DECLARATOR is EOL until https://github.com/google/styleguide/issues/259 -->
+            <property name="id" value="SeparatorWrapArrayDeclarator"/>
+            <property name="tokens" value="ARRAY_DECLARATOR"/>
+            <property name="option" value="EOL"/>
+        </module>
+        <module name="SeparatorWrap">
+            <property name="id" value="SeparatorWrapMethodRef"/>
+            <property name="tokens" value="METHOD_REF"/>
+            <property name="option" value="nl"/>
+        </module>
+        <module name="PackageName">
+            <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/>
+            <message key="name.invalidPattern"
+                     value="Package name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="TypeName">
+            <property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, ANNOTATION_DEF"/>
+            <message key="name.invalidPattern"
+                     value="Type name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="MemberName">
+            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>
+            <message key="name.invalidPattern"
+                     value="Member name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="ParameterName">
+            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
+            <message key="name.invalidPattern"
+                     value="Parameter name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="LambdaParameterName">
+            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
+            <message key="name.invalidPattern"
+                     value="Lambda parameter name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="CatchParameterName">
+            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
+            <message key="name.invalidPattern"
+                     value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="LocalVariableName">
+            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
+            <message key="name.invalidPattern"
+                     value="Local variable name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="ClassTypeParameterName">
+            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
+            <message key="name.invalidPattern"
+                     value="Class type name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="MethodTypeParameterName">
+            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
+            <message key="name.invalidPattern"
+                     value="Method type name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="InterfaceTypeParameterName">
+            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
+            <message key="name.invalidPattern"
+                     value="Interface type name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="NoFinalizer"/>
+        <module name="GenericWhitespace">
+            <message key="ws.followed"
+                     value="GenericWhitespace ''{0}'' is followed by whitespace."/>
+            <message key="ws.preceded"
+                     value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
+            <message key="ws.illegalFollow"
+                     value="GenericWhitespace ''{0}'' should followed by whitespace."/>
+            <message key="ws.notPreceded"
+                     value="GenericWhitespace ''{0}'' is not preceded with whitespace."/>
+        </module>
+        <module name="Indentation">
+            <property name="basicOffset" value="2"/>
+            <property name="braceAdjustment" value="0"/>
+            <property name="caseIndent" value="2"/>
+            <property name="throwsIndent" value="4"/>
+            <property name="lineWrappingIndentation" value="4"/>
+            <property name="arrayInitIndent" value="2"/>
+        </module>
+        <module name="AbbreviationAsWordInName">
+            <property name="ignoreFinal" value="false"/>
+            <property name="allowedAbbreviationLength" value="1"/>
+            <property name="tokens"
+                      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, ANNOTATION_DEF, ANNOTATION_FIELD_DEF,
+                    PARAMETER_DEF, VARIABLE_DEF, METHOD_DEF"/>
+        </module>
+        <module name="OverloadMethodsDeclarationOrder"/>
+<!--        <module name="VariableDeclarationUsageDistance"/>-->
+        <module name="CustomImportOrder">
+            <property name="sortImportsInGroupAlphabetically" value="true"/>
+            <property name="separateLineBetweenGroups" value="true"/>
+            <property name="customImportOrderRules" value="STATIC###THIRD_PARTY_PACKAGE"/>
+            <property name="tokens" value="IMPORT, STATIC_IMPORT, PACKAGE_DEF"/>
+        </module>
+        <module name="MethodParamPad">
+            <property name="tokens"
+                      value="CTOR_DEF, LITERAL_NEW, METHOD_CALL, METHOD_DEF,
+                    SUPER_CTOR_CALL, ENUM_CONSTANT_DEF"/>
+        </module>
+        <module name="NoWhitespaceBefore">
+            <property name="tokens"
+                      value="COMMA, SEMI, POST_INC, POST_DEC, DOT, ELLIPSIS,
+                    LABELED_STAT, METHOD_REF"/>
+            <property name="allowLineBreaks" value="true"/>
+        </module>
+        <module name="ParenPad">
+            <property name="tokens"
+                      value="ANNOTATION, ANNOTATION_FIELD_DEF, CTOR_CALL, CTOR_DEF, DOT, ENUM_CONSTANT_DEF,
+                    EXPR, LITERAL_CATCH, LITERAL_DO, LITERAL_FOR, LITERAL_IF, LITERAL_NEW,
+                    LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_WHILE, METHOD_CALL,
+                    METHOD_DEF, QUESTION, RESOURCE_SPECIFICATION, SUPER_CTOR_CALL, LAMBDA"/>
+        </module>
+        <module name="OperatorWrap">
+            <property name="option" value="NL"/>
+            <property name="tokens"
+                      value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR,
+                    LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR, METHOD_REF "/>
+        </module>
+        <module name="AnnotationLocation">
+            <property name="id" value="AnnotationLocationMostCases"/>
+            <property name="tokens"
+                      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF"/>
+        </module>
+        <module name="AnnotationLocation">
+            <property name="id" value="AnnotationLocationVariables"/>
+            <property name="tokens" value="VARIABLE_DEF"/>
+            <property name="allowSamelineMultipleAnnotations" value="true"/>
+        </module>
+        <module name="NonEmptyAtclauseDescription"/>
+        <module name="InvalidJavadocPosition"/>
+        <module name="JavadocTagContinuationIndentation"/>
+        <module name="SummaryJavadoc">
+            <property name="forbiddenSummaryFragments"
+                      value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>
+        </module>
+        <module name="JavadocParagraph"/>
+        <module name="AtclauseOrder">
+            <property name="tagOrder" value="@param, @return, @throws, @deprecated"/>
+            <property name="target"
+                      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
+        </module>
+        <module name="JavadocMethod">
+            <property name="accessModifiers" value="public"/>
+            <property name="allowMissingParamTags" value="true"/>
+            <property name="allowMissingReturnTag" value="true"/>
+            <property name="allowedAnnotations" value="Override, Test"/>
+            <property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF"/>
+        </module>
+<!--        <module name="MissingJavadocMethod">-->
+<!--            <property name="scope" value="public"/>-->
+<!--            <property name="minLineCount" value="2"/>-->
+<!--            <property name="allowedAnnotations" value="Override, Test"/>-->
+<!--            <property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF"/>-->
+<!--        </module>-->
+        <module name="MethodName">
+            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/>
+            <message key="name.invalidPattern"
+                     value="Method name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="SingleLineJavadoc">
+            <property name="ignoreInlineTags" value="false"/>
+        </module>
+        <module name="EmptyCatchBlock">
+            <property name="exceptionVariableName" value="ignored"/>
+        </module>
+        <module name="CommentsIndentation">
+            <property name="tokens" value="SINGLE_LINE_COMMENT, BLOCK_COMMENT_BEGIN"/>
+        </module>
+        <!-- https://checkstyle.org/config_filters.html#SuppressionXpathFilter -->
+        <module name="SuppressionXpathFilter">
+            <property name="file" value="${org.checkstyle.google.suppressionxpathfilter.config}"
+                      default="checkstyle-xpath-suppressions.xml" />
+            <property name="optional" value="true"/>
+        </module>
+    </module>
+</module>

etc/checkstyle/checkstyle.xml

@@ -318,7 +318,7 @@
             <property name="ignoreInlineTags" value="false"/>
         </module>
         <module name="EmptyCatchBlock">
-            <property name="exceptionVariableName" value="expected"/>
+            <property name="exceptionVariableName" value="ignored"/>
         </module>
         <module name="CommentsIndentation">
             <property name="tokens" value="SINGLE_LINE_COMMENT, BLOCK_COMMENT_BEGIN"/>
@@ -330,4 +330,4 @@
             <property name="optional" value="true"/>
         </module>
     </module>
-</module>
+</module>

helm_chart.md

@@ -1,65 +0,0 @@
-# Quick Start with Helm Chart
-
-### General
-1. Clone/Copy Chart to your working directory
-2. Execute command ```helm install helm-release-name charts/kafka-ui```
-
-### Passing Kafka-UI configuration as Dict
-Create values.yml file
-```
-yamlApplicationConfig:
-  kafka:
-    clusters:
-      - name: yaml
-        bootstrapServers:  kafka-cluster-broker-endpoints:9092
-  auth:
-    type: disabled
-  management:
-    health:
-      ldap:
-        enabled: false
-```
-Install by executing command
-> helm install helm-release-name charts/kafka-ui -f values.yml
-
-
-### Passing configuration file as ConfigMap 
-Create config map
-```
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: kafka-ui-existing-configmap-as-a-configfile
-data:
-  config.yml: |-
-    kafka:
-      clusters:
-        - name: yaml
-          bootstrapServers: kafka-cluster-broker-endpoints:9092
-    auth:
-      type: disabled
-    management:
-      health:
-        ldap:
-          enabled: false
-```
-This ConfigMap will be mounted to the Pod
-
-Install by executing command
-> helm install helm-release-name charts/kafka-ui --set yamlApplicationConfigConfigMap.name="kafka-ui-config",yamlApplicationConfigConfigMap.keyName="config.yml"
-
-### Passing environment variables as ConfigMap
-Create config map
-```
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: kafka-ui-helm-values
-data:
-  KAFKA_CLUSTERS_0_NAME: "kafka-cluster-name"
-  KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: "kafka-cluster-broker-endpoints:9092"
-  AUTH_TYPE: "DISABLED"
-  MANAGEMENT_HEALTH_LDAP_ENABLED: "FALSE" 
-```
-Install by executing command
-> helm install helm-release-name charts/kafka-ui --set existingConfigMap="kafka-ui-helm-values"  

kafka-ui-api/Dockerfile

@@ -1,4 +1,5 @@
-FROM azul/zulu-openjdk-alpine:17-jre
+#FROM azul/zulu-openjdk-alpine:17-jre-headless
+FROM azul/zulu-openjdk-alpine@sha256:a36679ac0d28cb835e2a8c00e1e0d95509c6c51c5081c7782b85edb1f37a771a
 
 RUN apk add --no-cache gcompat # need to make snappy codec work
 RUN addgroup -S kafkaui && adduser -S kafkaui -G kafkaui

kafka-ui-api/src/main/java/com/provectus/kafka/ui/client/RetryingKafkaConnectClient.java

@@ -6,7 +6,13 @@ import com.provectus.kafka.ui.config.ClustersProperties;
 import com.provectus.kafka.ui.connect.ApiClient;
 import com.provectus.kafka.ui.connect.api.KafkaConnectClientApi;
 import com.provectus.kafka.ui.connect.model.Connector;
+import com.provectus.kafka.ui.connect.model.ConnectorPlugin;
+import com.provectus.kafka.ui.connect.model.ConnectorPluginConfigValidationResponse;
+import com.provectus.kafka.ui.connect.model.ConnectorStatus;
+import com.provectus.kafka.ui.connect.model.ConnectorTask;
+import com.provectus.kafka.ui.connect.model.ConnectorTopics;
 import com.provectus.kafka.ui.connect.model.NewConnector;
+import com.provectus.kafka.ui.connect.model.TaskStatus;
 import com.provectus.kafka.ui.exception.KafkaConnectConflictReponseException;
 import com.provectus.kafka.ui.exception.ValidationException;
 import com.provectus.kafka.ui.util.WebClientConfigurator;
@@ -15,11 +21,7 @@ import java.util.List;
 import java.util.Map;
 import javax.annotation.Nullable;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.core.ParameterizedTypeReference;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.HttpMethod;
-import org.springframework.http.MediaType;
-import org.springframework.util.MultiValueMap;
+import org.springframework.http.ResponseEntity;
 import org.springframework.util.unit.DataSize;
 import org.springframework.web.client.RestClientException;
 import org.springframework.web.reactive.function.client.WebClient;
@@ -79,6 +81,176 @@ public class RetryingKafkaConnectClient extends KafkaConnectClientApi {
     );
   }
 
+  @Override
+  public Mono<ResponseEntity<Connector>> createConnectorWithHttpInfo(NewConnector newConnector)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.createConnectorWithHttpInfo(newConnector));
+  }
+
+  @Override
+  public Mono<Void> deleteConnector(String connectorName) throws WebClientResponseException {
+    return withRetryOnConflict(super.deleteConnector(connectorName));
+  }
+
+  @Override
+  public Mono<ResponseEntity<Void>> deleteConnectorWithHttpInfo(String connectorName)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.deleteConnectorWithHttpInfo(connectorName));
+  }
+
+
+  @Override
+  public Mono<Connector> getConnector(String connectorName) throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnector(connectorName));
+  }
+
+  @Override
+  public Mono<ResponseEntity<Connector>> getConnectorWithHttpInfo(String connectorName)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorWithHttpInfo(connectorName));
+  }
+
+  @Override
+  public Mono<Map<String, Object>> getConnectorConfig(String connectorName) throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorConfig(connectorName));
+  }
+
+  @Override
+  public Mono<ResponseEntity<Map<String, Object>>> getConnectorConfigWithHttpInfo(String connectorName)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorConfigWithHttpInfo(connectorName));
+  }
+
+  @Override
+  public Flux<ConnectorPlugin> getConnectorPlugins() throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorPlugins());
+  }
+
+  @Override
+  public Mono<ResponseEntity<List<ConnectorPlugin>>> getConnectorPluginsWithHttpInfo()
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorPluginsWithHttpInfo());
+  }
+
+  @Override
+  public Mono<ConnectorStatus> getConnectorStatus(String connectorName) throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorStatus(connectorName));
+  }
+
+  @Override
+  public Mono<ResponseEntity<ConnectorStatus>> getConnectorStatusWithHttpInfo(String connectorName)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorStatusWithHttpInfo(connectorName));
+  }
+
+  @Override
+  public Mono<TaskStatus> getConnectorTaskStatus(String connectorName, Integer taskId)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorTaskStatus(connectorName, taskId));
+  }
+
+  @Override
+  public Mono<ResponseEntity<TaskStatus>> getConnectorTaskStatusWithHttpInfo(String connectorName, Integer taskId)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorTaskStatusWithHttpInfo(connectorName, taskId));
+  }
+
+  @Override
+  public Flux<ConnectorTask> getConnectorTasks(String connectorName) throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorTasks(connectorName));
+  }
+
+  @Override
+  public Mono<ResponseEntity<List<ConnectorTask>>> getConnectorTasksWithHttpInfo(String connectorName)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorTasksWithHttpInfo(connectorName));
+  }
+
+  @Override
+  public Mono<Map<String, ConnectorTopics>> getConnectorTopics(String connectorName) throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorTopics(connectorName));
+  }
+
+  @Override
+  public Mono<ResponseEntity<Map<String, ConnectorTopics>>> getConnectorTopicsWithHttpInfo(String connectorName)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorTopicsWithHttpInfo(connectorName));
+  }
+
+  @Override
+  public Flux<String> getConnectors(String search) throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectors(search));
+  }
+
+  @Override
+  public Mono<ResponseEntity<List<String>>> getConnectorsWithHttpInfo(String search) throws WebClientResponseException {
+    return withRetryOnConflict(super.getConnectorsWithHttpInfo(search));
+  }
+
+  @Override
+  public Mono<Void> pauseConnector(String connectorName) throws WebClientResponseException {
+    return withRetryOnConflict(super.pauseConnector(connectorName));
+  }
+
+  @Override
+  public Mono<ResponseEntity<Void>> pauseConnectorWithHttpInfo(String connectorName) throws WebClientResponseException {
+    return withRetryOnConflict(super.pauseConnectorWithHttpInfo(connectorName));
+  }
+
+  @Override
+  public Mono<Void> restartConnector(String connectorName, Boolean includeTasks, Boolean onlyFailed)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.restartConnector(connectorName, includeTasks, onlyFailed));
+  }
+
+  @Override
+  public Mono<ResponseEntity<Void>> restartConnectorWithHttpInfo(String connectorName, Boolean includeTasks,
+                                                                 Boolean onlyFailed) throws WebClientResponseException {
+    return withRetryOnConflict(super.restartConnectorWithHttpInfo(connectorName, includeTasks, onlyFailed));
+  }
+
+  @Override
+  public Mono<Void> restartConnectorTask(String connectorName, Integer taskId) throws WebClientResponseException {
+    return withRetryOnConflict(super.restartConnectorTask(connectorName, taskId));
+  }
+
+  @Override
+  public Mono<ResponseEntity<Void>> restartConnectorTaskWithHttpInfo(String connectorName, Integer taskId)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.restartConnectorTaskWithHttpInfo(connectorName, taskId));
+  }
+
+  @Override
+  public Mono<Void> resumeConnector(String connectorName) throws WebClientResponseException {
+    return super.resumeConnector(connectorName);
+  }
+
+  @Override
+  public Mono<ResponseEntity<Void>> resumeConnectorWithHttpInfo(String connectorName)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.resumeConnectorWithHttpInfo(connectorName));
+  }
+
+  @Override
+  public Mono<ResponseEntity<Connector>> setConnectorConfigWithHttpInfo(String connectorName,
+                                                                        Map<String, Object> requestBody)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.setConnectorConfigWithHttpInfo(connectorName, requestBody));
+  }
+
+  @Override
+  public Mono<ConnectorPluginConfigValidationResponse> validateConnectorPluginConfig(String pluginName,
+                                                                                     Map<String, Object> requestBody)
+      throws WebClientResponseException {
+    return withRetryOnConflict(super.validateConnectorPluginConfig(pluginName, requestBody));
+  }
+
+  @Override
+  public Mono<ResponseEntity<ConnectorPluginConfigValidationResponse>> validateConnectorPluginConfigWithHttpInfo(
+      String pluginName, Map<String, Object> requestBody) throws WebClientResponseException {
+    return withRetryOnConflict(super.validateConnectorPluginConfigWithHttpInfo(pluginName, requestBody));
+  }
+
   private static class RetryingApiClient extends ApiClient {
 
     public RetryingApiClient(ConnectCluster config,
@@ -108,35 +280,5 @@ public class RetryingKafkaConnectClient extends KafkaConnectClientApi {
           .configureBufferSize(maxBuffSize)
           .build();
     }
-
-    @Override
-    public <T> Mono<T> invokeAPI(String path, HttpMethod method, Map<String, Object> pathParams,
-                                 MultiValueMap<String, String> queryParams, Object body,
-                                 HttpHeaders headerParams,
-                                 MultiValueMap<String, String> cookieParams,
-                                 MultiValueMap<String, Object> formParams, List<MediaType> accept,
-                                 MediaType contentType, String[] authNames,
-                                 ParameterizedTypeReference<T> returnType)
-        throws RestClientException {
-      return withRetryOnConflict(
-          super.invokeAPI(path, method, pathParams, queryParams, body, headerParams, cookieParams,
-              formParams, accept, contentType, authNames, returnType)
-      );
-    }
-
-    @Override
-    public <T> Flux<T> invokeFluxAPI(String path, HttpMethod method, Map<String, Object> pathParams,
-                                     MultiValueMap<String, String> queryParams, Object body,
-                                     HttpHeaders headerParams,
-                                     MultiValueMap<String, String> cookieParams,
-                                     MultiValueMap<String, Object> formParams,
-                                     List<MediaType> accept, MediaType contentType,
-                                     String[] authNames, ParameterizedTypeReference<T> returnType)
-        throws RestClientException {
-      return withRetryOnConflict(
-          super.invokeFluxAPI(path, method, pathParams, queryParams, body, headerParams,
-              cookieParams, formParams, accept, contentType, authNames, returnType)
-      );
-    }
   }
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/config/ClustersProperties.java

@@ -1,6 +1,7 @@
 package com.provectus.kafka.ui.config;
 
 import com.provectus.kafka.ui.model.MetricsConfig;
+import jakarta.annotation.PostConstruct;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -8,7 +9,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import javax.annotation.Nullable;
-import javax.annotation.PostConstruct;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
@@ -25,6 +25,10 @@ public class ClustersProperties {
 
   List<Cluster> clusters = new ArrayList<>();
 
+  String internalTopicPrefix;
+
+  PollingProperties polling = new PollingProperties();
+
   @Data
   public static class Cluster {
     String name;
@@ -47,6 +51,13 @@ public class ClustersProperties {
     TruststoreConfig ssl;
   }
 
+  @Data
+  public static class PollingProperties {
+    Integer pollTimeoutMs;
+    Integer partitionPollTimeout;
+    Integer noDataEmptyPolls;
+  }
+
   @Data
   @ToString(exclude = "password")
   public static class MetricsConfigData {

kafka-ui-api/src/main/java/com/provectus/kafka/ui/config/CorsGlobalConfiguration.java

@@ -1,25 +1,12 @@
 package com.provectus.kafka.ui.config;
 
-import lombok.AllArgsConstructor;
-import org.springframework.boot.autoconfigure.web.ServerProperties;
-import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.Profile;
-import org.springframework.core.io.ClassPathResource;
-import org.springframework.util.StringUtils;
 import org.springframework.web.reactive.config.CorsRegistry;
 import org.springframework.web.reactive.config.WebFluxConfigurer;
-import org.springframework.web.reactive.function.server.RouterFunction;
-import org.springframework.web.reactive.function.server.RouterFunctions;
-import org.springframework.web.reactive.function.server.ServerResponse;
 
 @Configuration
-@Profile("local")
-@AllArgsConstructor
 public class CorsGlobalConfiguration implements WebFluxConfigurer {
 
-  private final ServerProperties serverProperties;
-
   @Override
   public void addCorsMappings(CorsRegistry registry) {
     registry.addMapping("/**")
@@ -28,31 +15,4 @@ public class CorsGlobalConfiguration implements WebFluxConfigurer {
         .allowedHeaders("*")
         .allowCredentials(false);
   }
-
-  private String withContext(String pattern) {
-    final String basePath = serverProperties.getServlet().getContextPath();
-    if (StringUtils.hasText(basePath)) {
-      return basePath + pattern;
-    } else {
-      return pattern;
-    }
-  }
-
-  @Bean
-  public RouterFunction<ServerResponse> cssFilesRouter() {
-    return RouterFunctions
-        .resources(withContext("/static/css/**"), new ClassPathResource("static/static/css/"));
-  }
-
-  @Bean
-  public RouterFunction<ServerResponse> jsFilesRouter() {
-    return RouterFunctions
-        .resources(withContext("/static/js/**"), new ClassPathResource("static/static/js/"));
-  }
-
-  @Bean
-  public RouterFunction<ServerResponse> mediaFilesRouter() {
-    return RouterFunctions
-        .resources(withContext("/static/media/**"), new ClassPathResource("static/static/media/"));
-  }
-}
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/config/auth/OAuthProperties.java

@@ -1,9 +1,9 @@
 package com.provectus.kafka.ui.config.auth;
 
+import jakarta.annotation.PostConstruct;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
-import javax.annotation.PostConstruct;
 import lombok.Data;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.util.Assert;

kafka-ui-api/src/main/java/com/provectus/kafka/ui/controller/ApplicationConfigController.java

@@ -13,12 +13,12 @@ import com.provectus.kafka.ui.model.ClusterConfigValidationDTO;
 import com.provectus.kafka.ui.model.RestartRequestDTO;
 import com.provectus.kafka.ui.model.UploadedFileInfoDTO;
 import com.provectus.kafka.ui.model.rbac.AccessContext;
+import com.provectus.kafka.ui.service.ApplicationInfoService;
 import com.provectus.kafka.ui.service.KafkaClusterFactory;
 import com.provectus.kafka.ui.service.rbac.AccessControlService;
 import com.provectus.kafka.ui.util.ApplicationRestarter;
 import com.provectus.kafka.ui.util.DynamicConfigOperations;
 import com.provectus.kafka.ui.util.DynamicConfigOperations.PropertiesStructure;
-import java.util.List;
 import java.util.Map;
 import javax.annotation.Nullable;
 import lombok.RequiredArgsConstructor;
@@ -53,18 +53,11 @@ public class ApplicationConfigController implements ApplicationConfigApi {
   private final DynamicConfigOperations dynamicConfigOperations;
   private final ApplicationRestarter restarter;
   private final KafkaClusterFactory kafkaClusterFactory;
-
+  private final ApplicationInfoService applicationInfoService;
 
   @Override
   public Mono<ResponseEntity<ApplicationInfoDTO>> getApplicationInfo(ServerWebExchange exchange) {
-    return Mono.just(
-        new ApplicationInfoDTO()
-            .enabledFeatures(
-                dynamicConfigOperations.dynamicConfigEnabled()
-                    ? List.of(ApplicationInfoDTO.EnabledFeaturesEnum.DYNAMIC_CONFIG)
-                    : List.of()
-            )
-    ).map(ResponseEntity::ok);
+    return Mono.just(applicationInfoService.getApplicationInfo()).map(ResponseEntity::ok);
   }
 
   @Override

kafka-ui-api/src/main/java/com/provectus/kafka/ui/controller/KafkaConnectController.java

@@ -149,10 +149,9 @@ public class KafkaConnectController extends AbstractController implements KafkaC
   }
 
   @Override
-  public Mono<ResponseEntity<ConnectorDTO>> setConnectorConfig(String clusterName,
-                                                               String connectName,
+  public Mono<ResponseEntity<ConnectorDTO>> setConnectorConfig(String clusterName, String connectName,
                                                                String connectorName,
-                                                               @Valid Mono<Object> requestBody,
+                                                               Mono<Map<String, Object>> requestBody,
                                                                ServerWebExchange exchange) {
 
     Mono<Void> validateAccess = accessControlService.validateAccess(AccessContext.builder()
@@ -164,8 +163,7 @@ public class KafkaConnectController extends AbstractController implements KafkaC
     return validateAccess.then(
         kafkaConnectService
             .setConnectorConfig(getCluster(clusterName), connectName, connectorName, requestBody)
-            .map(ResponseEntity::ok)
-    );
+            .map(ResponseEntity::ok));
   }
 
   @Override
@@ -242,7 +240,7 @@ public class KafkaConnectController extends AbstractController implements KafkaC
 
   @Override
   public Mono<ResponseEntity<ConnectorPluginConfigValidationResponseDTO>> validateConnectorPluginConfig(
-      String clusterName, String connectName, String pluginName, @Valid Mono<Object> requestBody,
+      String clusterName, String connectName, String pluginName, @Valid Mono<Map<String, Object>> requestBody,
       ServerWebExchange exchange) {
     return kafkaConnectService
         .validateConnectorPluginConfig(

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/AbstractEmitter.java

@@ -1,10 +1,6 @@
 package com.provectus.kafka.ui.emitter;
 
-import com.provectus.kafka.ui.model.TopicMessageDTO;
 import com.provectus.kafka.ui.model.TopicMessageEventDTO;
-import com.provectus.kafka.ui.model.TopicMessagePhaseDTO;
-import com.provectus.kafka.ui.serdes.ConsumerRecordDeserializer;
-import com.provectus.kafka.ui.util.PollingThrottler;
 import java.time.Duration;
 import java.time.Instant;
 import org.apache.kafka.clients.consumer.Consumer;
@@ -14,27 +10,20 @@ import org.apache.kafka.common.utils.Bytes;
 import reactor.core.publisher.FluxSink;
 
 public abstract class AbstractEmitter {
-  private static final Duration DEFAULT_POLL_TIMEOUT_MS = Duration.ofMillis(1000L);
 
-  // In some situations it is hard to say whether records range (between two offsets) was fully polled.
-  // This happens when we have holes in records sequences that is usual case for compact topics or
-  // topics with transactional writes. In such cases if you want to poll all records between offsets X and Y
-  // there is no guarantee that you will ever see record with offset Y.
-  // To workaround this we can assume that after N consecutive empty polls all target messages were read.
-  public static final int NO_MORE_DATA_EMPTY_POLLS_COUNT = 3;
-
-  private final ConsumerRecordDeserializer recordDeserializer;
-  private final ConsumingStats consumingStats = new ConsumingStats();
+  private final MessagesProcessing messagesProcessing;
   private final PollingThrottler throttler;
+  protected final PollingSettings pollingSettings;
 
-  protected AbstractEmitter(ConsumerRecordDeserializer recordDeserializer, PollingThrottler throttler) {
-    this.recordDeserializer = recordDeserializer;
-    this.throttler = throttler;
+  protected AbstractEmitter(MessagesProcessing messagesProcessing, PollingSettings pollingSettings) {
+    this.messagesProcessing = messagesProcessing;
+    this.pollingSettings = pollingSettings;
+    this.throttler = pollingSettings.getPollingThrottler();
   }
 
   protected ConsumerRecords<Bytes, Bytes> poll(
       FluxSink<TopicMessageEventDTO> sink, Consumer<Bytes, Bytes> consumer) {
-    return poll(sink, consumer, DEFAULT_POLL_TIMEOUT_MS);
+    return poll(sink, consumer, pollingSettings.getPollTimeout());
   }
 
   protected ConsumerRecords<Bytes, Bytes> poll(
@@ -47,39 +36,27 @@ public abstract class AbstractEmitter {
     return records;
   }
 
+  protected boolean sendLimitReached() {
+    return messagesProcessing.limitReached();
+  }
+
   protected void sendMessage(FluxSink<TopicMessageEventDTO> sink,
-                                                       ConsumerRecord<Bytes, Bytes> msg) {
-    final TopicMessageDTO topicMessage = recordDeserializer.deserialize(msg);
-    sink.next(
-        new TopicMessageEventDTO()
-            .type(TopicMessageEventDTO.TypeEnum.MESSAGE)
-            .message(topicMessage)
-    );
+                             ConsumerRecord<Bytes, Bytes> msg) {
+    messagesProcessing.sendMsg(sink, msg);
   }
 
   protected void sendPhase(FluxSink<TopicMessageEventDTO> sink, String name) {
-    sink.next(
-        new TopicMessageEventDTO()
-            .type(TopicMessageEventDTO.TypeEnum.PHASE)
-            .phase(new TopicMessagePhaseDTO().name(name))
-    );
+    messagesProcessing.sendPhase(sink, name);
   }
 
   protected int sendConsuming(FluxSink<TopicMessageEventDTO> sink,
-                               ConsumerRecords<Bytes, Bytes> records,
-                               long elapsed) {
-    return consumingStats.sendConsumingEvt(sink, records, elapsed, getFilterApplyErrors(sink));
+                              ConsumerRecords<Bytes, Bytes> records,
+                              long elapsed) {
+    return messagesProcessing.sentConsumingInfo(sink, records, elapsed);
   }
 
   protected void sendFinishStatsAndCompleteSink(FluxSink<TopicMessageEventDTO> sink) {
-    consumingStats.sendFinishEvent(sink, getFilterApplyErrors(sink));
+    messagesProcessing.sendFinishEvent(sink);
     sink.complete();
   }
-
-  protected Number getFilterApplyErrors(FluxSink<?> sink) {
-    return sink.contextView()
-        .<MessageFilterStats>getOrEmpty(MessageFilterStats.class)
-        .<Number>map(MessageFilterStats::getFilterApplyErrors)
-        .orElse(0);
-  }
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/BackwardRecordEmitter.java

@@ -2,16 +2,12 @@ package com.provectus.kafka.ui.emitter;
 
 import com.provectus.kafka.ui.model.ConsumerPosition;
 import com.provectus.kafka.ui.model.TopicMessageEventDTO;
-import com.provectus.kafka.ui.serdes.ConsumerRecordDeserializer;
-import com.provectus.kafka.ui.util.PollingThrottler;
-import java.time.Duration;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 import java.util.TreeMap;
 import java.util.function.Supplier;
-import java.util.stream.Collectors;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.consumer.Consumer;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
@@ -26,8 +22,6 @@ public class BackwardRecordEmitter
     extends AbstractEmitter
     implements java.util.function.Consumer<FluxSink<TopicMessageEventDTO>> {
 
-  private static final Duration POLL_TIMEOUT = Duration.ofMillis(200);
-
   private final Supplier<KafkaConsumer<Bytes, Bytes>> consumerSupplier;
   private final ConsumerPosition consumerPosition;
   private final int messagesPerPage;
@@ -36,9 +30,9 @@ public class BackwardRecordEmitter
       Supplier<KafkaConsumer<Bytes, Bytes>> consumerSupplier,
       ConsumerPosition consumerPosition,
       int messagesPerPage,
-      ConsumerRecordDeserializer recordDeserializer,
-      PollingThrottler throttler) {
-    super(recordDeserializer, throttler);
+      MessagesProcessing messagesProcessing,
+      PollingSettings pollingSettings) {
+    super(messagesProcessing, pollingSettings);
     this.consumerPosition = consumerPosition;
     this.messagesPerPage = messagesPerPage;
     this.consumerSupplier = consumerSupplier;
@@ -57,7 +51,7 @@ public class BackwardRecordEmitter
       int msgsToPollPerPartition = (int) Math.ceil((double) messagesPerPage / readUntilOffsets.size());
       log.debug("'Until' offsets for polling: {}", readUntilOffsets);
 
-      while (!sink.isCancelled() && !readUntilOffsets.isEmpty()) {
+      while (!sink.isCancelled() && !readUntilOffsets.isEmpty() && !sendLimitReached()) {
         new TreeMap<>(readUntilOffsets).forEach((tp, readToOffset) -> {
           if (sink.isCancelled()) {
             return; //fast return in case of sink cancellation
@@ -66,8 +60,6 @@ public class BackwardRecordEmitter
           long readFromOffset = Math.max(beginOffset, readToOffset - msgsToPollPerPartition);
 
           partitionPollIteration(tp, readFromOffset, readToOffset, consumer, sink)
-              .stream()
-              .filter(r -> !sink.isCancelled())
               .forEach(r -> sendMessage(sink, r));
 
           if (beginOffset == readFromOffset) {
@@ -109,17 +101,19 @@ public class BackwardRecordEmitter
 
     var recordsToSend = new ArrayList<ConsumerRecord<Bytes, Bytes>>();
 
-    // we use empty polls counting to verify that partition was fully read
-    for (int emptyPolls = 0; recordsToSend.size() < desiredMsgsToPoll && emptyPolls < NO_MORE_DATA_EMPTY_POLLS_COUNT;) {
-      var polledRecords = poll(sink, consumer, POLL_TIMEOUT);
-      log.debug("{} records polled from {}", polledRecords.count(), tp);
+    EmptyPollsCounter emptyPolls  = pollingSettings.createEmptyPollsCounter();
+    while (!sink.isCancelled()
+        && !sendLimitReached()
+        && recordsToSend.size() < desiredMsgsToPoll
+        && !emptyPolls.noDataEmptyPollsReached()) {
+      var polledRecords = poll(sink, consumer, pollingSettings.getPartitionPollTimeout());
+      emptyPolls.count(polledRecords);
 
-      // counting sequential empty polls
-      emptyPolls = polledRecords.isEmpty() ? emptyPolls + 1 : 0;
+      log.debug("{} records polled from {}", polledRecords.count(), tp);
 
       var filteredRecords = polledRecords.records(tp).stream()
           .filter(r -> r.offset() < toOffset)
-          .collect(Collectors.toList());
+          .toList();
 
       if (!polledRecords.isEmpty() && filteredRecords.isEmpty()) {
         // we already read all messages in target offsets interval

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/ConsumingStats.java

@@ -19,7 +19,7 @@ class ConsumingStats {
   int sendConsumingEvt(FluxSink<TopicMessageEventDTO> sink,
                         ConsumerRecords<Bytes, Bytes> polledRecords,
                         long elapsed,
-                        Number filterApplyErrors) {
+                        int filterApplyErrors) {
     int polledBytes = ConsumerRecordsUtil.calculatePolledSize(polledRecords);
     bytes += polledBytes;
     this.records += polledRecords.count();
@@ -32,7 +32,7 @@ class ConsumingStats {
     return polledBytes;
   }
 
-  void sendFinishEvent(FluxSink<TopicMessageEventDTO> sink, Number filterApplyErrors) {
+  void sendFinishEvent(FluxSink<TopicMessageEventDTO> sink, int filterApplyErrors) {
     sink.next(
         new TopicMessageEventDTO()
             .type(TopicMessageEventDTO.TypeEnum.DONE)
@@ -41,12 +41,12 @@ class ConsumingStats {
   }
 
   private TopicMessageConsumingDTO createConsumingStats(FluxSink<TopicMessageEventDTO> sink,
-                                                        Number filterApplyErrors) {
+                                                        int filterApplyErrors) {
     return new TopicMessageConsumingDTO()
         .bytesConsumed(this.bytes)
         .elapsedMs(this.elapsed)
         .isCancelled(sink.isCancelled())
-        .filterApplyErrors(filterApplyErrors.intValue())
+        .filterApplyErrors(filterApplyErrors)
         .messagesConsumed(this.records);
   }
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/EmptyPollsCounter.java

@@ -0,0 +1,28 @@
+package com.provectus.kafka.ui.emitter;
+
+import org.apache.kafka.clients.consumer.ConsumerRecords;
+
+// In some situations it is hard to say whether records range (between two offsets) was fully polled.
+// This happens when we have holes in records sequences that is usual case for compact topics or
+// topics with transactional writes. In such cases if you want to poll all records between offsets X and Y
+// there is no guarantee that you will ever see record with offset Y.
+// To workaround this we can assume that after N consecutive empty polls all target messages were read.
+public class EmptyPollsCounter {
+
+  private final int maxEmptyPolls;
+
+  private int emptyPolls = 0;
+
+  EmptyPollsCounter(int maxEmptyPolls) {
+    this.maxEmptyPolls = maxEmptyPolls;
+  }
+
+  public void count(ConsumerRecords<?, ?> polled) {
+    emptyPolls = polled.isEmpty() ? emptyPolls + 1 : 0;
+  }
+
+  public boolean noDataEmptyPollsReached() {
+    return emptyPolls >= maxEmptyPolls;
+  }
+
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/ForwardRecordEmitter.java

@@ -2,8 +2,6 @@ package com.provectus.kafka.ui.emitter;
 
 import com.provectus.kafka.ui.model.ConsumerPosition;
 import com.provectus.kafka.ui.model.TopicMessageEventDTO;
-import com.provectus.kafka.ui.serdes.ConsumerRecordDeserializer;
-import com.provectus.kafka.ui.util.PollingThrottler;
 import java.util.function.Supplier;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
@@ -24,9 +22,9 @@ public class ForwardRecordEmitter
   public ForwardRecordEmitter(
       Supplier<KafkaConsumer<Bytes, Bytes>> consumerSupplier,
       ConsumerPosition position,
-      ConsumerRecordDeserializer recordDeserializer,
-      PollingThrottler throttler) {
-    super(recordDeserializer, throttler);
+      MessagesProcessing messagesProcessing,
+      PollingSettings pollingSettings) {
+    super(messagesProcessing, pollingSettings);
     this.position = position;
     this.consumerSupplier = consumerSupplier;
   }
@@ -39,23 +37,20 @@ public class ForwardRecordEmitter
       var seekOperations = SeekOperations.create(consumer, position);
       seekOperations.assignAndSeekNonEmptyPartitions();
 
-      // we use empty polls counting to verify that topic was fully read
-      int emptyPolls = 0;
+      EmptyPollsCounter emptyPolls = pollingSettings.createEmptyPollsCounter();
       while (!sink.isCancelled()
+          && !sendLimitReached()
           && !seekOperations.assignedPartitionsFullyPolled()
-          && emptyPolls < NO_MORE_DATA_EMPTY_POLLS_COUNT) {
+          && !emptyPolls.noDataEmptyPollsReached()) {
 
         sendPhase(sink, "Polling");
         ConsumerRecords<Bytes, Bytes> records = poll(sink, consumer);
+        emptyPolls.count(records);
+
         log.debug("{} records polled", records.count());
-        emptyPolls = records.isEmpty() ? emptyPolls + 1 : 0;
 
         for (ConsumerRecord<Bytes, Bytes> msg : records) {
-          if (!sink.isCancelled()) {
-            sendMessage(sink, msg);
-          } else {
-            break;
-          }
+          sendMessage(sink, msg);
         }
       }
       sendFinishStatsAndCompleteSink(sink);

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/MessageFilterStats.java

@@ -1,16 +0,0 @@
-package com.provectus.kafka.ui.emitter;
-
-import java.util.concurrent.atomic.AtomicLong;
-import lombok.AccessLevel;
-import lombok.Getter;
-
-public class MessageFilterStats {
-
-  @Getter(AccessLevel.PACKAGE)
-  private final AtomicLong filterApplyErrors = new AtomicLong();
-
-  public final void incrementApplyErrors() {
-    filterApplyErrors.incrementAndGet();
-  }
-
-}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/MessagesProcessing.java

@@ -0,0 +1,82 @@
+package com.provectus.kafka.ui.emitter;
+
+import com.provectus.kafka.ui.model.TopicMessageDTO;
+import com.provectus.kafka.ui.model.TopicMessageEventDTO;
+import com.provectus.kafka.ui.model.TopicMessagePhaseDTO;
+import com.provectus.kafka.ui.serdes.ConsumerRecordDeserializer;
+import java.util.function.Predicate;
+import javax.annotation.Nullable;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.consumer.ConsumerRecord;
+import org.apache.kafka.clients.consumer.ConsumerRecords;
+import org.apache.kafka.common.utils.Bytes;
+import reactor.core.publisher.FluxSink;
+
+@Slf4j
+public class MessagesProcessing {
+
+  private final ConsumingStats consumingStats = new ConsumingStats();
+  private long sentMessages = 0;
+  private int filterApplyErrors = 0;
+
+  private final ConsumerRecordDeserializer deserializer;
+  private final Predicate<TopicMessageDTO> filter;
+  private final @Nullable Integer limit;
+
+  public MessagesProcessing(ConsumerRecordDeserializer deserializer,
+                            Predicate<TopicMessageDTO> filter,
+                            @Nullable Integer limit) {
+    this.deserializer = deserializer;
+    this.filter = filter;
+    this.limit = limit;
+  }
+
+  boolean limitReached() {
+    return limit != null && sentMessages >= limit;
+  }
+
+  void sendMsg(FluxSink<TopicMessageEventDTO> sink, ConsumerRecord<Bytes, Bytes> rec) {
+    if (!sink.isCancelled() && !limitReached()) {
+      TopicMessageDTO topicMessage = deserializer.deserialize(rec);
+      try {
+        if (filter.test(topicMessage)) {
+          sink.next(
+              new TopicMessageEventDTO()
+                  .type(TopicMessageEventDTO.TypeEnum.MESSAGE)
+                  .message(topicMessage)
+          );
+          sentMessages++;
+        }
+      } catch (Exception e) {
+        filterApplyErrors++;
+        log.trace("Error applying filter for message {}", topicMessage);
+      }
+    }
+  }
+
+  int sentConsumingInfo(FluxSink<TopicMessageEventDTO> sink,
+                        ConsumerRecords<Bytes, Bytes> polledRecords,
+                        long elapsed) {
+    if (!sink.isCancelled()) {
+      return consumingStats.sendConsumingEvt(sink, polledRecords, elapsed, filterApplyErrors);
+    }
+    return 0;
+  }
+
+  void sendFinishEvent(FluxSink<TopicMessageEventDTO> sink) {
+    if (!sink.isCancelled()) {
+      consumingStats.sendFinishEvent(sink, filterApplyErrors);
+    }
+  }
+
+  void sendPhase(FluxSink<TopicMessageEventDTO> sink, String name) {
+    if (!sink.isCancelled()) {
+      sink.next(
+          new TopicMessageEventDTO()
+              .type(TopicMessageEventDTO.TypeEnum.PHASE)
+              .phase(new TopicMessagePhaseDTO().name(name))
+      );
+    }
+  }
+
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/PollingSettings.java

@@ -0,0 +1,79 @@
+package com.provectus.kafka.ui.emitter;
+
+import com.provectus.kafka.ui.config.ClustersProperties;
+import java.time.Duration;
+import java.util.Optional;
+import java.util.function.Supplier;
+
+public class PollingSettings {
+
+  private static final Duration DEFAULT_POLL_TIMEOUT = Duration.ofMillis(1_000);
+  private static final Duration DEFAULT_PARTITION_POLL_TIMEOUT = Duration.ofMillis(200);
+  private static final int DEFAULT_NO_DATA_EMPTY_POLLS = 3;
+
+  private final Duration pollTimeout;
+  private final Duration partitionPollTimeout;
+  private final int notDataEmptyPolls; //see EmptyPollsCounter docs
+
+  private final Supplier<PollingThrottler> throttlerSupplier;
+
+  public static PollingSettings create(ClustersProperties.Cluster cluster,
+                                       ClustersProperties clustersProperties) {
+    var pollingProps = Optional.ofNullable(clustersProperties.getPolling())
+        .orElseGet(ClustersProperties.PollingProperties::new);
+
+    var pollTimeout = pollingProps.getPollTimeoutMs() != null
+        ? Duration.ofMillis(pollingProps.getPollTimeoutMs())
+        : DEFAULT_POLL_TIMEOUT;
+
+    var partitionPollTimeout = pollingProps.getPartitionPollTimeout() != null
+        ? Duration.ofMillis(pollingProps.getPartitionPollTimeout())
+        : Duration.ofMillis(pollTimeout.toMillis() / 5);
+
+    int noDataEmptyPolls = pollingProps.getNoDataEmptyPolls() != null
+        ? pollingProps.getNoDataEmptyPolls()
+        : DEFAULT_NO_DATA_EMPTY_POLLS;
+
+    return new PollingSettings(
+        pollTimeout,
+        partitionPollTimeout,
+        noDataEmptyPolls,
+        PollingThrottler.throttlerSupplier(cluster)
+    );
+  }
+
+  public static PollingSettings createDefault() {
+    return new PollingSettings(
+        DEFAULT_POLL_TIMEOUT,
+        DEFAULT_PARTITION_POLL_TIMEOUT,
+        DEFAULT_NO_DATA_EMPTY_POLLS,
+        PollingThrottler::noop
+    );
+  }
+
+  private PollingSettings(Duration pollTimeout,
+                          Duration partitionPollTimeout,
+                          int notDataEmptyPolls,
+                          Supplier<PollingThrottler> throttlerSupplier) {
+    this.pollTimeout = pollTimeout;
+    this.partitionPollTimeout = partitionPollTimeout;
+    this.notDataEmptyPolls = notDataEmptyPolls;
+    this.throttlerSupplier = throttlerSupplier;
+  }
+
+  public EmptyPollsCounter createEmptyPollsCounter() {
+    return new EmptyPollsCounter(notDataEmptyPolls);
+  }
+
+  public Duration getPollTimeout() {
+    return pollTimeout;
+  }
+
+  public Duration getPartitionPollTimeout() {
+    return partitionPollTimeout;
+  }
+
+  public PollingThrottler getPollingThrottler() {
+    return throttlerSupplier.get();
+  }
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/PollingThrottler.java → kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/PollingThrottler.java

@@ -1,8 +1,9 @@
-package com.provectus.kafka.ui.util;
+package com.provectus.kafka.ui.emitter;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.util.concurrent.RateLimiter;
 import com.provectus.kafka.ui.config.ClustersProperties;
+import com.provectus.kafka.ui.util.ConsumerRecordsUtil;
 import java.util.function.Supplier;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.consumer.ConsumerRecords;

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/ResultSizeLimiter.java → kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/ResultSizeLimiter.java

@@ -1,4 +1,4 @@
-package com.provectus.kafka.ui.util;
+package com.provectus.kafka.ui.emitter;
 
 import com.provectus.kafka.ui.model.TopicMessageEventDTO;
 import java.util.concurrent.atomic.AtomicInteger;

kafka-ui-api/src/main/java/com/provectus/kafka/ui/emitter/TailingEmitter.java

@@ -2,8 +2,6 @@ package com.provectus.kafka.ui.emitter;
 
 import com.provectus.kafka.ui.model.ConsumerPosition;
 import com.provectus.kafka.ui.model.TopicMessageEventDTO;
-import com.provectus.kafka.ui.serdes.ConsumerRecordDeserializer;
-import com.provectus.kafka.ui.util.PollingThrottler;
 import java.util.HashMap;
 import java.util.function.Supplier;
 import lombok.extern.slf4j.Slf4j;
@@ -21,9 +19,9 @@ public class TailingEmitter extends AbstractEmitter
 
   public TailingEmitter(Supplier<KafkaConsumer<Bytes, Bytes>> consumerSupplier,
                         ConsumerPosition consumerPosition,
-                        ConsumerRecordDeserializer recordDeserializer,
-                        PollingThrottler throttler) {
-    super(recordDeserializer, throttler);
+                        MessagesProcessing messagesProcessing,
+                        PollingSettings pollingSettings) {
+    super(messagesProcessing, pollingSettings);
     this.consumerSupplier = consumerSupplier;
     this.consumerPosition = consumerPosition;
   }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/exception/GlobalErrorWebExceptionHandler.java

@@ -134,7 +134,7 @@ public class GlobalErrorWebExceptionHandler extends AbstractErrorWebExceptionHan
         .timestamp(currentTimestamp())
         .stackTrace(Throwables.getStackTraceAsString(exception));
     return ServerResponse
-        .status(exception.getStatus())
+        .status(exception.getStatusCode())
         .contentType(MediaType.APPLICATION_JSON)
         .bodyValue(response);
   }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/mapper/ConsumerGroupMapper.java

@@ -89,19 +89,7 @@ public class ConsumerGroupMapper {
             .flatMap(m -> m.getAssignment().stream().map(TopicPartition::topic))
     ).collect(Collectors.toSet()).size();
 
-    Long messagesBehind = null;
-    // messagesBehind should be undefined if no committed offsets found for topic
-    if (!c.getOffsets().isEmpty()) {
-      messagesBehind = c.getOffsets().entrySet().stream()
-          .mapToLong(e ->
-              Optional.ofNullable(c.getEndOffsets())
-                  .map(o -> o.get(e.getKey()))
-                  .map(o -> o - e.getValue())
-                  .orElse(0L)
-          ).sum();
-    }
-
-    consumerGroup.setMessagesBehind(messagesBehind);
+    consumerGroup.setMessagesBehind(c.getMessagesBehind());
     consumerGroup.setTopics(numTopics);
     consumerGroup.setSimple(c.isSimple());
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/model/InternalConsumerGroup.java

@@ -20,6 +20,7 @@ public class InternalConsumerGroup {
   private final Collection<InternalMember> members;
   private final Map<TopicPartition, Long> offsets;
   private final Map<TopicPartition, Long> endOffsets;
+  private final Long messagesBehind;
   private final String partitionAssignor;
   private final ConsumerGroupState state;
   private final Node coordinator;
@@ -58,7 +59,25 @@ public class InternalConsumerGroup {
     );
     builder.offsets(groupOffsets);
     builder.endOffsets(topicEndOffsets);
+    builder.messagesBehind(calculateMessagesBehind(groupOffsets, topicEndOffsets));
     Optional.ofNullable(description.coordinator()).ifPresent(builder::coordinator);
     return builder.build();
   }
+
+  private static Long calculateMessagesBehind(Map<TopicPartition, Long> offsets, Map<TopicPartition, Long> endOffsets) {
+    Long messagesBehind = null;
+    // messagesBehind should be undefined if no committed offsets found for topic
+    if (!offsets.isEmpty()) {
+      messagesBehind = offsets.entrySet().stream()
+          .mapToLong(e ->
+              Optional.ofNullable(endOffsets)
+                  .map(o -> o.get(e.getKey()))
+                  .map(o -> o - e.getValue())
+                  .orElse(0L)
+          ).sum();
+    }
+
+    return messagesBehind;
+  }
+
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/model/InternalTopic.java

@@ -1,9 +1,11 @@
 package com.provectus.kafka.ui.model;
 
+import com.provectus.kafka.ui.config.ClustersProperties;
 import java.math.BigDecimal;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
+import javax.annotation.Nullable;
 import lombok.Builder;
 import lombok.Data;
 import org.apache.kafka.clients.admin.ConfigEntry;
@@ -14,6 +16,8 @@ import org.apache.kafka.common.TopicPartition;
 @Builder(toBuilder = true)
 public class InternalTopic {
 
+  ClustersProperties clustersProperties;
+
   // from TopicDescription
   private final String name;
   private final boolean internal;
@@ -40,9 +44,17 @@ public class InternalTopic {
                                    List<ConfigEntry> configs,
                                    InternalPartitionsOffsets partitionsOffsets,
                                    Metrics metrics,
-                                   InternalLogDirStats logDirInfo) {
+                                   InternalLogDirStats logDirInfo,
+                                   @Nullable String internalTopicPrefix) {
     var topic = InternalTopic.builder();
-    topic.internal(topicDescription.isInternal());
+
+    internalTopicPrefix = internalTopicPrefix == null || internalTopicPrefix.isEmpty()
+        ? "_"
+        : internalTopicPrefix;
+
+    topic.internal(
+        topicDescription.isInternal() || topicDescription.name().startsWith(internalTopicPrefix)
+    );
     topic.name(topicDescription.name());
 
     List<InternalPartition> partitions = topicDescription.partitions().stream()
@@ -56,10 +68,10 @@ public class InternalTopic {
           List<InternalReplica> replicas = partition.replicas().stream()
               .map(r ->
                   InternalReplica.builder()
-                    .broker(r.id())
-                    .inSync(partition.isr().contains(r))
-                    .leader(partition.leader() != null && partition.leader().id() == r.id())
-                    .build())
+                      .broker(r.id())
+                      .inSync(partition.isr().contains(r))
+                      .leader(partition.leader() != null && partition.leader().id() == r.id())
+                      .build())
               .collect(Collectors.toList());
           partitionDto.replicas(replicas);
 
@@ -79,7 +91,7 @@ public class InternalTopic {
 
           return partitionDto.build();
         })
-        .collect(Collectors.toList());
+        .toList();
 
     topic.partitions(partitions.stream().collect(
         Collectors.toMap(InternalPartition::getPartition, t -> t)));

kafka-ui-api/src/main/java/com/provectus/kafka/ui/model/KafkaCluster.java

@@ -2,14 +2,13 @@ package com.provectus.kafka.ui.model;
 
 import com.provectus.kafka.ui.config.ClustersProperties;
 import com.provectus.kafka.ui.connect.api.KafkaConnectClientApi;
+import com.provectus.kafka.ui.emitter.PollingSettings;
 import com.provectus.kafka.ui.service.ksql.KsqlApiClient;
 import com.provectus.kafka.ui.service.masking.DataMasking;
 import com.provectus.kafka.ui.sr.api.KafkaSrClientApi;
-import com.provectus.kafka.ui.util.PollingThrottler;
 import com.provectus.kafka.ui.util.ReactiveFailover;
 import java.util.Map;
 import java.util.Properties;
-import java.util.function.Supplier;
 import lombok.AccessLevel;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
@@ -28,7 +27,7 @@ public class KafkaCluster {
   private final boolean readOnly;
   private final MetricsConfig metricsConfig;
   private final DataMasking masking;
-  private final Supplier<PollingThrottler> throttler;
+  private final PollingSettings pollingSettings;
   private final ReactiveFailover<KafkaSrClientApi> schemaRegistryClient;
   private final Map<String, ReactiveFailover<KafkaConnectClientApi>> connectsClients;
   private final ReactiveFailover<KsqlApiClient> ksqlClient;

kafka-ui-api/src/main/java/com/provectus/kafka/ui/model/rbac/Permission.java

@@ -1,5 +1,6 @@
 package com.provectus.kafka.ui.model.rbac;
 
+import static com.provectus.kafka.ui.model.rbac.Resource.APPLICATIONCONFIG;
 import static com.provectus.kafka.ui.model.rbac.Resource.CLUSTERCONFIG;
 import static com.provectus.kafka.ui.model.rbac.Resource.KSQL;
 
@@ -25,6 +26,8 @@ import org.springframework.util.Assert;
 @EqualsAndHashCode
 public class Permission {
 
+  private static final List<Resource> RBAC_ACTION_EXEMPT_LIST = List.of(KSQL, CLUSTERCONFIG, APPLICATIONCONFIG);
+
   Resource resource;
   List<String> actions;
 
@@ -50,7 +53,7 @@ public class Permission {
 
   public void validate() {
     Assert.notNull(resource, "resource cannot be null");
-    if (!List.of(KSQL, CLUSTERCONFIG).contains(this.resource)) {
+    if (!RBAC_ACTION_EXEMPT_LIST.contains(this.resource)) {
       Assert.notNull(value, "permission value can't be empty for resource " + resource);
     }
   }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/ApplicationInfoService.java

@@ -0,0 +1,76 @@
+package com.provectus.kafka.ui.service;
+
+import static com.provectus.kafka.ui.model.ApplicationInfoDTO.EnabledFeaturesEnum;
+
+import com.provectus.kafka.ui.model.ApplicationInfoBuildDTO;
+import com.provectus.kafka.ui.model.ApplicationInfoDTO;
+import com.provectus.kafka.ui.model.ApplicationInfoLatestReleaseDTO;
+import com.provectus.kafka.ui.util.DynamicConfigOperations;
+import com.provectus.kafka.ui.util.GithubReleaseInfo;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.util.Properties;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.info.BuildProperties;
+import org.springframework.boot.info.GitProperties;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
+
+@Service
+public class ApplicationInfoService {
+
+  private final GithubReleaseInfo githubReleaseInfo = new GithubReleaseInfo();
+
+  private final DynamicConfigOperations dynamicConfigOperations;
+  private final BuildProperties buildProperties;
+  private final GitProperties gitProperties;
+
+  public ApplicationInfoService(DynamicConfigOperations dynamicConfigOperations,
+                                @Autowired(required = false) BuildProperties buildProperties,
+                                @Autowired(required = false) GitProperties gitProperties) {
+    this.dynamicConfigOperations = dynamicConfigOperations;
+    this.buildProperties = Optional.ofNullable(buildProperties).orElse(new BuildProperties(new Properties()));
+    this.gitProperties = Optional.ofNullable(gitProperties).orElse(new GitProperties(new Properties()));
+  }
+
+  public ApplicationInfoDTO getApplicationInfo() {
+    var releaseInfo = githubReleaseInfo.get();
+    return new ApplicationInfoDTO()
+        .build(getBuildInfo(releaseInfo))
+        .enabledFeatures(getEnabledFeatures())
+        .latestRelease(convert(releaseInfo));
+  }
+
+  private ApplicationInfoLatestReleaseDTO convert(GithubReleaseInfo.GithubReleaseDto releaseInfo) {
+    return new ApplicationInfoLatestReleaseDTO()
+        .htmlUrl(releaseInfo.html_url())
+        .publishedAt(releaseInfo.published_at())
+        .versionTag(releaseInfo.tag_name());
+  }
+
+  private ApplicationInfoBuildDTO getBuildInfo(GithubReleaseInfo.GithubReleaseDto release) {
+    return new ApplicationInfoBuildDTO()
+        .isLatestRelease(release.tag_name() != null && release.tag_name().equals(buildProperties.getVersion()))
+        .commitId(gitProperties.getShortCommitId())
+        .version(buildProperties.getVersion())
+        .buildTime(buildProperties.getTime() != null
+            ? DateTimeFormatter.ISO_INSTANT.format(buildProperties.getTime()) : null);
+  }
+
+  private List<EnabledFeaturesEnum> getEnabledFeatures() {
+    var enabledFeatures = new ArrayList<EnabledFeaturesEnum>();
+    if (dynamicConfigOperations.dynamicConfigEnabled()) {
+      enabledFeatures.add(EnabledFeaturesEnum.DYNAMIC_CONFIG);
+    }
+    return enabledFeatures;
+  }
+
+  // updating on startup and every hour
+  @Scheduled(fixedRateString = "${github-release-info-update-rate:3600000}")
+  public void updateGithubReleaseInfo() {
+    githubReleaseInfo.refresh().block();
+  }
+
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/ClustersStorage.java

@@ -14,7 +14,7 @@ public class ClustersStorage {
 
   public ClustersStorage(ClustersProperties properties, KafkaClusterFactory factory) {
     var builder = ImmutableMap.<String, KafkaCluster>builder();
-    properties.getClusters().forEach(c -> builder.put(c.getName(), factory.create(c)));
+    properties.getClusters().forEach(c -> builder.put(c.getName(), factory.create(properties, c)));
     this.kafkaClusters = builder.build();
   }
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/ConsumerGroupService.java

@@ -1,5 +1,6 @@
 package com.provectus.kafka.ui.service;
 
+import com.google.common.collect.Streams;
 import com.google.common.collect.Table;
 import com.provectus.kafka.ui.model.ConsumerGroupOrderingDTO;
 import com.provectus.kafka.ui.model.InternalConsumerGroup;
@@ -157,6 +158,24 @@ public class ConsumerGroupService {
             .map(descriptions ->
                 sortAndPaginate(descriptions.values(), comparator, pageNum, perPage, sortOrderDto).toList());
       }
+      case MESSAGES_BEHIND -> {
+        record GroupWithDescr(InternalConsumerGroup icg, ConsumerGroupDescription cgd) { }
+
+        Comparator<GroupWithDescr> comparator = Comparator.comparingLong(gwd ->
+            gwd.icg.getMessagesBehind() == null ? 0L : gwd.icg.getMessagesBehind());
+
+        var groupNames = groups.stream().map(ConsumerGroupListing::groupId).toList();
+
+        yield ac.describeConsumerGroups(groupNames)
+            .flatMap(descriptionsMap -> {
+                  List<ConsumerGroupDescription> descriptions = descriptionsMap.values().stream().toList();
+                  return getConsumerGroups(ac, descriptions)
+                      .map(icg -> Streams.zip(icg.stream(), descriptions.stream(), GroupWithDescr::new).toList())
+                      .map(gwd -> sortAndPaginate(gwd, comparator, pageNum, perPage, sortOrderDto)
+                            .map(GroupWithDescr::cgd).toList());
+                }
+            );
+      }
     };
   }
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/FeatureService.java

@@ -25,7 +25,8 @@ public class FeatureService {
 
   private final AdminClientService adminClientService;
 
-  public Mono<List<ClusterFeature>> getAvailableFeatures(KafkaCluster cluster, @Nullable Node controller) {
+  public Mono<List<ClusterFeature>> getAvailableFeatures(KafkaCluster cluster,
+                                                         ReactiveAdminClient.ClusterDescription clusterDescription) {
     List<Mono<ClusterFeature>> features = new ArrayList<>();
 
     if (Optional.ofNullable(cluster.getConnectsClients())
@@ -42,17 +43,15 @@ public class FeatureService {
       features.add(Mono.just(ClusterFeature.SCHEMA_REGISTRY));
     }
 
-    if (controller != null) {
-      features.add(
-          isTopicDeletionEnabled(cluster, controller)
-              .flatMap(r -> Boolean.TRUE.equals(r) ? Mono.just(ClusterFeature.TOPIC_DELETION) : Mono.empty())
-      );
-    }
+    features.add(topicDeletionEnabled(cluster, clusterDescription.getController()));
 
     return Flux.fromIterable(features).flatMap(m -> m).collectList();
   }
 
-  private Mono<Boolean> isTopicDeletionEnabled(KafkaCluster cluster, Node controller) {
+  private Mono<ClusterFeature> topicDeletionEnabled(KafkaCluster cluster, @Nullable Node controller) {
+    if (controller == null) {
+      return Mono.just(ClusterFeature.TOPIC_DELETION); // assuming it is enabled by default
+    }
     return adminClientService.get(cluster)
         .flatMap(ac -> ac.loadBrokersConfig(List.of(controller.id())))
         .map(config ->
@@ -61,6 +60,9 @@ public class FeatureService {
                 .filter(e -> e.name().equals(DELETE_TOPIC_ENABLED_SERVER_PROPERTY))
                 .map(e -> Boolean.parseBoolean(e.value()))
                 .findFirst()
-                .orElse(true));
+                .orElse(true))
+        .flatMap(enabled -> enabled
+            ? Mono.just(ClusterFeature.TOPIC_DELETION)
+            : Mono.empty());
   }
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/KafkaClusterFactory.java

@@ -3,6 +3,7 @@ package com.provectus.kafka.ui.service;
 import com.provectus.kafka.ui.client.RetryingKafkaConnectClient;
 import com.provectus.kafka.ui.config.ClustersProperties;
 import com.provectus.kafka.ui.connect.api.KafkaConnectClientApi;
+import com.provectus.kafka.ui.emitter.PollingSettings;
 import com.provectus.kafka.ui.model.ApplicationPropertyValidationDTO;
 import com.provectus.kafka.ui.model.ClusterConfigValidationDTO;
 import com.provectus.kafka.ui.model.KafkaCluster;
@@ -12,7 +13,6 @@ import com.provectus.kafka.ui.service.masking.DataMasking;
 import com.provectus.kafka.ui.sr.ApiClient;
 import com.provectus.kafka.ui.sr.api.KafkaSrClientApi;
 import com.provectus.kafka.ui.util.KafkaServicesValidation;
-import com.provectus.kafka.ui.util.PollingThrottler;
 import com.provectus.kafka.ui.util.ReactiveFailover;
 import com.provectus.kafka.ui.util.WebClientConfigurator;
 import java.util.HashMap;
@@ -41,7 +41,8 @@ public class KafkaClusterFactory {
   @Value("${webclient.max-in-memory-buffer-size:20MB}")
   private DataSize maxBuffSize;
 
-  public KafkaCluster create(ClustersProperties.Cluster clusterProperties) {
+  public KafkaCluster create(ClustersProperties properties,
+                             ClustersProperties.Cluster clusterProperties) {
     KafkaCluster.KafkaClusterBuilder builder = KafkaCluster.builder();
 
     builder.name(clusterProperties.getName());
@@ -49,7 +50,7 @@ public class KafkaClusterFactory {
     builder.properties(convertProperties(clusterProperties.getProperties()));
     builder.readOnly(clusterProperties.isReadOnly());
     builder.masking(DataMasking.create(clusterProperties.getMasking()));
-    builder.throttler(PollingThrottler.throttlerSupplier(clusterProperties));
+    builder.pollingSettings(PollingSettings.create(clusterProperties, properties));
 
     if (schemaRegistryConfigured(clusterProperties)) {
       builder.schemaRegistryClient(schemaRegistryClient(clusterProperties));

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/KafkaConfigSanitizer.java

@@ -1,38 +1,58 @@
 package com.provectus.kafka.ui.service;
 
+import static java.util.regex.Pattern.CASE_INSENSITIVE;
+
+import com.google.common.collect.ImmutableList;
 import java.util.Arrays;
-import java.util.HashSet;
+import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import org.apache.kafka.common.config.ConfigDef;
 import org.apache.kafka.common.config.SaslConfigs;
 import org.apache.kafka.common.config.SslConfigs;
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.boot.actuate.endpoint.Sanitizer;
 import org.springframework.stereotype.Component;
 
 @Component
-class KafkaConfigSanitizer extends Sanitizer {
-  private static final List<String> DEFAULT_PATTERNS_TO_SANITIZE = Arrays.asList(
-      "basic.auth.user.info",  /* For Schema Registry credentials */
-      "password", "secret", "token", "key", ".*credentials.*",   /* General credential patterns */
-      "aws.access.*", "aws.secret.*", "aws.session.*"   /* AWS-related credential patterns */
-  );
+class KafkaConfigSanitizer  {
+
+  private static final String SANITIZED_VALUE = "******";
+
+  private static final String[] REGEX_PARTS = {"*", "$", "^", "+"};
+
+  private static final List<String> DEFAULT_PATTERNS_TO_SANITIZE = ImmutableList.<String>builder()
+      .addAll(kafkaConfigKeysToSanitize())
+      .add(
+          "basic.auth.user.info",  /* For Schema Registry credentials */
+          "password", "secret", "token", "key", ".*credentials.*",   /* General credential patterns */
+          "aws.access.*", "aws.secret.*", "aws.session.*"   /* AWS-related credential patterns */
+      )
+      .build();
+
+  private final List<Pattern> sanitizeKeysPatterns;
 
   KafkaConfigSanitizer(
       @Value("${kafka.config.sanitizer.enabled:true}") boolean enabled,
       @Value("${kafka.config.sanitizer.patterns:}") List<String> patternsToSanitize
   ) {
-    if (!enabled) {
-      setKeysToSanitize();
-    } else {
-      var keysToSanitize = new HashSet<>(
-          patternsToSanitize.isEmpty() ? DEFAULT_PATTERNS_TO_SANITIZE : patternsToSanitize);
-      keysToSanitize.addAll(kafkaConfigKeysToSanitize());
-      setKeysToSanitize(keysToSanitize.toArray(new String[] {}));
-    }
+    this.sanitizeKeysPatterns = enabled
+        ? compile(patternsToSanitize.isEmpty() ? DEFAULT_PATTERNS_TO_SANITIZE : patternsToSanitize)
+        : List.of();
+  }
+
+  private static List<Pattern> compile(Collection<String> patternStrings) {
+    return patternStrings.stream()
+        .map(p -> isRegex(p)
+            ? Pattern.compile(p, CASE_INSENSITIVE)
+            : Pattern.compile(".*" + p + "$", CASE_INSENSITIVE))
+        .toList();
+  }
+
+  private static boolean isRegex(String str) {
+    return Arrays.stream(REGEX_PARTS).anyMatch(str::contains);
   }
 
   private static Set<String> kafkaConfigKeysToSanitize() {
@@ -45,4 +65,17 @@ class KafkaConfigSanitizer extends Sanitizer {
         .collect(Collectors.toSet());
   }
 
+  public Object sanitize(String key, Object value) {
+    if (value == null) {
+      return null;
+    }
+    for (Pattern pattern : sanitizeKeysPatterns) {
+      if (pattern.matcher(key).matches()) {
+        return SANITIZED_VALUE;
+      }
+    }
+    return value;
+  }
+
+
 }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/KafkaConnectService.java

@@ -225,11 +225,11 @@ public class KafkaConnectService {
   }
 
   public Mono<ConnectorDTO> setConnectorConfig(KafkaCluster cluster, String connectName,
-                                               String connectorName, Mono<Object> requestBody) {
+                                               String connectorName, Mono<Map<String, Object>> requestBody) {
     return api(cluster, connectName)
         .mono(c ->
             requestBody
-                .flatMap(body -> c.setConnectorConfig(connectorName, (Map<String, Object>) body))
+                .flatMap(body -> c.setConnectorConfig(connectorName, body))
                 .map(kafkaConnectMapper::fromClient));
   }
 
@@ -298,12 +298,12 @@ public class KafkaConnectService {
   }
 
   public Mono<ConnectorPluginConfigValidationResponseDTO> validateConnectorPluginConfig(
-      KafkaCluster cluster, String connectName, String pluginName, Mono<Object> requestBody) {
+      KafkaCluster cluster, String connectName, String pluginName, Mono<Map<String, Object>> requestBody) {
     return api(cluster, connectName)
         .mono(client ->
             requestBody
                 .flatMap(body ->
-                    client.validateConnectorPluginConfig(pluginName, (Map<String, Object>) body))
+                    client.validateConnectorPluginConfig(pluginName, body))
                 .map(kafkaConnectMapper::fromClient)
         );
   }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/MessagesService.java

@@ -3,8 +3,8 @@ package com.provectus.kafka.ui.service;
 import com.google.common.util.concurrent.RateLimiter;
 import com.provectus.kafka.ui.emitter.BackwardRecordEmitter;
 import com.provectus.kafka.ui.emitter.ForwardRecordEmitter;
-import com.provectus.kafka.ui.emitter.MessageFilterStats;
 import com.provectus.kafka.ui.emitter.MessageFilters;
+import com.provectus.kafka.ui.emitter.MessagesProcessing;
 import com.provectus.kafka.ui.emitter.TailingEmitter;
 import com.provectus.kafka.ui.exception.TopicNotFoundException;
 import com.provectus.kafka.ui.exception.ValidationException;
@@ -13,11 +13,10 @@ import com.provectus.kafka.ui.model.CreateTopicMessageDTO;
 import com.provectus.kafka.ui.model.KafkaCluster;
 import com.provectus.kafka.ui.model.MessageFilterTypeDTO;
 import com.provectus.kafka.ui.model.SeekDirectionDTO;
+import com.provectus.kafka.ui.model.TopicMessageDTO;
 import com.provectus.kafka.ui.model.TopicMessageEventDTO;
 import com.provectus.kafka.ui.serde.api.Serde;
-import com.provectus.kafka.ui.serdes.ConsumerRecordDeserializer;
 import com.provectus.kafka.ui.serdes.ProducerRecordCreator;
-import com.provectus.kafka.ui.util.ResultSizeLimiter;
 import com.provectus.kafka.ui.util.SslPropertiesUtil;
 import java.util.List;
 import java.util.Map;
@@ -162,47 +161,41 @@ public class MessagesService {
                                                       @Nullable String valueSerde) {
 
     java.util.function.Consumer<? super FluxSink<TopicMessageEventDTO>> emitter;
-    ConsumerRecordDeserializer recordDeserializer =
-        deserializationService.deserializerFor(cluster, topic, keySerde, valueSerde);
+
+    var processing = new MessagesProcessing(
+        deserializationService.deserializerFor(cluster, topic, keySerde, valueSerde),
+        getMsgFilter(query, filterQueryType),
+        seekDirection == SeekDirectionDTO.TAILING ? null : limit
+    );
+
     if (seekDirection.equals(SeekDirectionDTO.FORWARD)) {
       emitter = new ForwardRecordEmitter(
           () -> consumerGroupService.createConsumer(cluster),
           consumerPosition,
-          recordDeserializer,
-          cluster.getThrottler().get()
+          processing,
+          cluster.getPollingSettings()
       );
     } else if (seekDirection.equals(SeekDirectionDTO.BACKWARD)) {
       emitter = new BackwardRecordEmitter(
           () -> consumerGroupService.createConsumer(cluster),
           consumerPosition,
           limit,
-          recordDeserializer,
-          cluster.getThrottler().get()
+          processing,
+          cluster.getPollingSettings()
       );
     } else {
       emitter = new TailingEmitter(
           () -> consumerGroupService.createConsumer(cluster),
           consumerPosition,
-          recordDeserializer,
-          cluster.getThrottler().get()
+          processing,
+          cluster.getPollingSettings()
       );
     }
-    MessageFilterStats filterStats = new MessageFilterStats();
     return Flux.create(emitter)
-        .contextWrite(ctx -> ctx.put(MessageFilterStats.class, filterStats))
-        .filter(getMsgFilter(query, filterQueryType, filterStats))
         .map(getDataMasker(cluster, topic))
-        .takeWhile(createTakeWhilePredicate(seekDirection, limit))
         .map(throttleUiPublish(seekDirection));
   }
 
-  private Predicate<TopicMessageEventDTO> createTakeWhilePredicate(
-      SeekDirectionDTO seekDirection, int limit) {
-    return seekDirection == SeekDirectionDTO.TAILING
-        ? evt -> true // no limit for tailing
-        : new ResultSizeLimiter(limit);
-  }
-
   private UnaryOperator<TopicMessageEventDTO> getDataMasker(KafkaCluster cluster, String topicName) {
     var keyMasker = cluster.getMasking().getMaskingFunction(topicName, Serde.Target.KEY);
     var valMasker = cluster.getMasking().getMaskingFunction(topicName, Serde.Target.VALUE);
@@ -211,32 +204,18 @@ public class MessagesService {
         return evt;
       }
       return evt.message(
-        evt.getMessage()
-            .key(keyMasker.apply(evt.getMessage().getKey()))
-            .content(valMasker.apply(evt.getMessage().getContent())));
+          evt.getMessage()
+              .key(keyMasker.apply(evt.getMessage().getKey()))
+              .content(valMasker.apply(evt.getMessage().getContent())));
     };
   }
 
-  private Predicate<TopicMessageEventDTO> getMsgFilter(String query,
-                                                       MessageFilterTypeDTO filterQueryType,
-                                                       MessageFilterStats filterStats) {
+  private Predicate<TopicMessageDTO> getMsgFilter(String query,
+                                                  MessageFilterTypeDTO filterQueryType) {
     if (StringUtils.isEmpty(query)) {
       return evt -> true;
     }
-    var messageFilter = MessageFilters.createMsgFilter(query, filterQueryType);
-    return evt -> {
-      // we only apply filter for message events
-      if (evt.getType() == TopicMessageEventDTO.TypeEnum.MESSAGE) {
-        try {
-          return messageFilter.test(evt.getMessage());
-        } catch (Exception e) {
-          filterStats.incrementApplyErrors();
-          log.trace("Error applying filter '{}' for message {}", query, evt.getMessage());
-          return false;
-        }
-      }
-      return true;
-    };
+    return MessageFilters.createMsgFilter(query, filterQueryType);
   }
 
   private <T> UnaryOperator<T> throttleUiPublish(SeekDirectionDTO seekDirection) {

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/ReactiveAdminClient.java

@@ -4,6 +4,7 @@ import static java.util.stream.Collectors.toList;
 import static java.util.stream.Collectors.toMap;
 import static org.apache.kafka.clients.admin.ListOffsetsResult.ListOffsetsResultInfo;
 
+import com.google.common.annotations.VisibleForTesting;
 import com.google.common.collect.ImmutableTable;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Table;
@@ -212,17 +213,24 @@ public class ReactiveAdminClient implements Closeable {
         .map(brokerId -> new ConfigResource(ConfigResource.Type.BROKER, Integer.toString(brokerId)))
         .collect(toList());
     return toMono(client.describeConfigs(resources).all())
-        // some kafka backends (like MSK serverless) do not support broker's configs retrieval,
-        // in that case InvalidRequestException will be thrown
-        .onErrorResume(InvalidRequestException.class, th -> {
-          log.trace("Error while getting broker {} configs", brokerIds, th);
-          return Mono.just(Map.of());
-        })
+        // some kafka backends don't support broker's configs retrieval,
+        // and throw various exceptions on describeConfigs() call
+        .onErrorResume(th -> th instanceof InvalidRequestException // MSK Serverless
+                || th instanceof UnknownTopicOrPartitionException, // Azure event hub
+            th -> {
+              log.trace("Error while getting configs for brokers {}", brokerIds, th);
+              return Mono.just(Map.of());
+            })
         // there are situations when kafka-ui user has no DESCRIBE_CONFIGS permission on cluster
         .onErrorResume(ClusterAuthorizationException.class, th -> {
           log.trace("AuthorizationException while getting configs for brokers {}", brokerIds, th);
           return Mono.just(Map.of());
         })
+        // catching all remaining exceptions, but logging on WARN level
+        .onErrorResume(th -> true, th -> {
+          log.warn("Unexpected error while getting configs for brokers {}", brokerIds, th);
+          return Mono.just(Map.of());
+        })
         .map(config -> config.entrySet().stream()
             .collect(toMap(
                 c -> Integer.valueOf(c.getKey().name()),
@@ -491,6 +499,14 @@ public class ReactiveAdminClient implements Closeable {
         .flatMap(parts -> listOffsetsUnsafe(parts, offsetSpec));
   }
 
+  /**
+   * List offset for the specified topics, skipping no-leader partitions.
+   */
+  public Mono<Map<TopicPartition, Long>> listOffsets(Collection<TopicDescription> topicDescriptions,
+                                                     OffsetSpec offsetSpec) {
+    return listOffsetsUnsafe(filterPartitionsWithLeaderCheck(topicDescriptions, p -> true, false), offsetSpec);
+  }
+
   private Mono<Collection<TopicPartition>> filterPartitionsWithLeaderCheck(Collection<TopicPartition> partitions,
                                                                            boolean failOnUnknownLeader) {
     var targetTopics = partitions.stream().map(TopicPartition::topic).collect(Collectors.toSet());
@@ -500,34 +516,44 @@ public class ReactiveAdminClient implements Closeable {
                 descriptions.values(), partitions::contains, failOnUnknownLeader));
   }
 
-  private Set<TopicPartition> filterPartitionsWithLeaderCheck(Collection<TopicDescription> topicDescriptions,
+  @VisibleForTesting
+  static Set<TopicPartition> filterPartitionsWithLeaderCheck(Collection<TopicDescription> topicDescriptions,
                                                               Predicate<TopicPartition> partitionPredicate,
                                                               boolean failOnUnknownLeader) {
     var goodPartitions = new HashSet<TopicPartition>();
     for (TopicDescription description : topicDescriptions) {
+      var goodTopicPartitions = new ArrayList<TopicPartition>();
       for (TopicPartitionInfo partitionInfo : description.partitions()) {
         TopicPartition topicPartition = new TopicPartition(description.name(), partitionInfo.partition());
-        if (!partitionPredicate.test(topicPartition)) {
-          continue;
+        if (partitionInfo.leader() == null) {
+          if (failOnUnknownLeader) {
+            throw new ValidationException(String.format("Topic partition %s has no leader", topicPartition));
+          } else {
+            // if ANY of topic partitions has no leader - we have to skip all topic partitions
+            goodTopicPartitions.clear();
+            break;
+          }
         }
-        if (partitionInfo.leader() != null) {
-          goodPartitions.add(topicPartition);
-        } else if (failOnUnknownLeader) {
-          throw new ValidationException(String.format("Topic partition %s has no leader", topicPartition));
+        if (partitionPredicate.test(topicPartition)) {
+          goodTopicPartitions.add(topicPartition);
         }
       }
+      goodPartitions.addAll(goodTopicPartitions);
     }
     return goodPartitions;
   }
 
-  // 1. NOTE(!): should only apply for partitions with existing leader,
+  // 1. NOTE(!): should only apply for partitions from topics where all partitions have leaders,
   //    otherwise AdminClient will try to fetch topic metadata, fail and retry infinitely (until timeout)
   // 2. NOTE(!): Skips partitions that were not initialized yet
   //    (UnknownTopicOrPartitionException thrown, ex. after topic creation)
   // 3. TODO: check if it is a bug that AdminClient never throws LeaderNotAvailableException and just retrying instead
   @KafkaClientInternalsDependant
-  public Mono<Map<TopicPartition, Long>> listOffsetsUnsafe(Collection<TopicPartition> partitions,
-                                                           OffsetSpec offsetSpec) {
+  @VisibleForTesting
+  Mono<Map<TopicPartition, Long>> listOffsetsUnsafe(Collection<TopicPartition> partitions, OffsetSpec offsetSpec) {
+    if (partitions.isEmpty()) {
+      return Mono.just(Map.of());
+    }
 
     Function<Collection<TopicPartition>, Mono<Map<TopicPartition, Long>>> call =
         parts -> {

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/StatisticsService.java

@@ -41,7 +41,7 @@ public class StatisticsService {
                     List.of(
                         metricsCollector.getBrokerMetrics(cluster, description.getNodes()),
                         getLogDirInfo(description, ac),
-                        featureService.getAvailableFeatures(cluster, description.getController()),
+                        featureService.getAvailableFeatures(cluster, description),
                         loadTopicConfigs(cluster),
                         describeTopics(cluster)),
                     results ->

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/TopicsService.java

@@ -3,6 +3,8 @@ package com.provectus.kafka.ui.service;
 import static java.util.stream.Collectors.toList;
 import static java.util.stream.Collectors.toMap;
 
+import com.google.common.collect.Sets;
+import com.provectus.kafka.ui.config.ClustersProperties;
 import com.provectus.kafka.ui.exception.TopicMetadataException;
 import com.provectus.kafka.ui.exception.TopicNotFoundException;
 import com.provectus.kafka.ui.exception.TopicRecreationException;
@@ -52,6 +54,7 @@ public class TopicsService {
 
   private final AdminClientService adminClientService;
   private final StatisticsCache statisticsCache;
+  private final ClustersProperties clustersProperties;
   @Value("${topic.recreate.maxRetries:15}")
   private int recreateMaxRetries;
   @Value("${topic.recreate.delay.seconds:1}")
@@ -127,28 +130,21 @@ public class TopicsService {
             configs.getOrDefault(t, List.of()),
             partitionsOffsets,
             metrics,
-            logDirInfo
+            logDirInfo,
+            clustersProperties.getInternalTopicPrefix()
         ))
         .collect(toList());
   }
 
   private Mono<InternalPartitionsOffsets> getPartitionOffsets(Map<String, TopicDescription>
-                                                                  descriptions,
+                                                                  descriptionsMap,
                                                               ReactiveAdminClient ac) {
-    var topicPartitions = descriptions.values().stream()
-        .flatMap(desc ->
-            desc.partitions().stream()
-                // list offsets should only be applied to partitions with existing leader
-                // (see ReactiveAdminClient.listOffsetsUnsafe(..) docs)
-                .filter(tp -> tp.leader() != null)
-                .map(p -> new TopicPartition(desc.name(), p.partition())))
-        .collect(toList());
-
-    return ac.listOffsetsUnsafe(topicPartitions, OffsetSpec.earliest())
-        .zipWith(ac.listOffsetsUnsafe(topicPartitions, OffsetSpec.latest()),
+    var descriptions = descriptionsMap.values();
+    return ac.listOffsets(descriptions, OffsetSpec.earliest())
+        .zipWith(ac.listOffsets(descriptions, OffsetSpec.latest()),
             (earliest, latest) ->
-                topicPartitions.stream()
-                    .filter(tp -> earliest.containsKey(tp) && latest.containsKey(tp))
+                Sets.intersection(earliest.keySet(), latest.keySet())
+                    .stream()
                     .map(tp ->
                         Map.entry(tp,
                             new InternalPartitionsOffsets.Offsets(
@@ -459,7 +455,9 @@ public class TopicsService {
                     stats.getTopicConfigs().getOrDefault(topicName, List.of()),
                     InternalPartitionsOffsets.empty(),
                     stats.getMetrics(),
-                    stats.getLogDirInfo()))
+                    stats.getLogDirInfo(),
+                    clustersProperties.getInternalTopicPrefix()
+                    ))
             .collect(toList())
         );
   }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/analyze/TopicAnalysisService.java

@@ -1,14 +1,14 @@
 package com.provectus.kafka.ui.service.analyze;
 
-import static com.provectus.kafka.ui.emitter.AbstractEmitter.NO_MORE_DATA_EMPTY_POLLS_COUNT;
-
+import com.provectus.kafka.ui.emitter.EmptyPollsCounter;
 import com.provectus.kafka.ui.emitter.OffsetsInfo;
+import com.provectus.kafka.ui.emitter.PollingSettings;
+import com.provectus.kafka.ui.emitter.PollingThrottler;
 import com.provectus.kafka.ui.exception.TopicAnalysisException;
 import com.provectus.kafka.ui.model.KafkaCluster;
 import com.provectus.kafka.ui.model.TopicAnalysisDTO;
 import com.provectus.kafka.ui.service.ConsumerGroupService;
 import com.provectus.kafka.ui.service.TopicsService;
-import com.provectus.kafka.ui.util.PollingThrottler;
 import java.io.Closeable;
 import java.time.Duration;
 import java.time.Instant;
@@ -63,7 +63,7 @@ public class TopicAnalysisService {
     if (analysisTasksStore.isAnalysisInProgress(topicId)) {
       throw new TopicAnalysisException("Topic is already analyzing");
     }
-    var task = new AnalysisTask(cluster, topicId, partitionsCnt, approxNumberOfMsgs, cluster.getThrottler().get());
+    var task = new AnalysisTask(cluster, topicId, partitionsCnt, approxNumberOfMsgs, cluster.getPollingSettings());
     analysisTasksStore.registerNewTask(topicId, task);
     Schedulers.boundedElastic().schedule(task);
   }
@@ -83,6 +83,7 @@ public class TopicAnalysisService {
     private final TopicIdentity topicId;
     private final int partitionsCnt;
     private final long approxNumberOfMsgs;
+    private final EmptyPollsCounter emptyPollsCounter;
     private final PollingThrottler throttler;
 
     private final TopicAnalysisStats totalStats = new TopicAnalysisStats();
@@ -91,7 +92,7 @@ public class TopicAnalysisService {
     private final KafkaConsumer<Bytes, Bytes> consumer;
 
     AnalysisTask(KafkaCluster cluster, TopicIdentity topicId, int partitionsCnt,
-                 long approxNumberOfMsgs, PollingThrottler throttler) {
+                 long approxNumberOfMsgs, PollingSettings pollingSettings) {
       this.topicId = topicId;
       this.approxNumberOfMsgs = approxNumberOfMsgs;
       this.partitionsCnt = partitionsCnt;
@@ -103,7 +104,8 @@ public class TopicAnalysisService {
               ConsumerConfig.MAX_POLL_RECORDS_CONFIG, "100000"
           )
       );
-      this.throttler = throttler;
+      this.throttler = pollingSettings.getPollingThrottler();
+      this.emptyPollsCounter = pollingSettings.createEmptyPollsCounter();
     }
 
     @Override
@@ -124,11 +126,10 @@ public class TopicAnalysisService {
         consumer.seekToBeginning(topicPartitions);
 
         var offsetsInfo = new OffsetsInfo(consumer, topicId.topicName);
-        for (int emptyPolls = 0; !offsetsInfo.assignedPartitionsFullyPolled()
-            && emptyPolls < NO_MORE_DATA_EMPTY_POLLS_COUNT;) {
+        while (!offsetsInfo.assignedPartitionsFullyPolled() && !emptyPollsCounter.noDataEmptyPollsReached()) {
           var polled = consumer.poll(Duration.ofSeconds(3));
           throttler.throttleAfterPoll(polled);
-          emptyPolls = polled.isEmpty() ? emptyPolls + 1 : 0;
+          emptyPollsCounter.count(polled);
           polled.forEach(r -> {
             totalStats.apply(r);
             partitionStats.get(r.partition()).apply(r);

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/analyze/TopicAnalysisStats.java

@@ -2,7 +2,7 @@ package com.provectus.kafka.ui.service.analyze;
 
 import com.provectus.kafka.ui.model.TopicAnalysisSizeStatsDTO;
 import com.provectus.kafka.ui.model.TopicAnalysisStatsDTO;
-import com.provectus.kafka.ui.model.TopicAnalysisStatsHourlyMsgCountsDTO;
+import com.provectus.kafka.ui.model.TopicAnalysisStatsHourlyMsgCountsInnerDTO;
 import java.time.Duration;
 import java.time.Instant;
 import java.util.Comparator;
@@ -78,10 +78,10 @@ class TopicAnalysisStats {
       }
     }
 
-    List<TopicAnalysisStatsHourlyMsgCountsDTO> toDto() {
+    List<TopicAnalysisStatsHourlyMsgCountsInnerDTO> toDto() {
       return hourlyStats.entrySet().stream()
           .sorted(Comparator.comparingLong(Map.Entry::getKey))
-          .map(e -> new TopicAnalysisStatsHourlyMsgCountsDTO()
+          .map(e -> new TopicAnalysisStatsHourlyMsgCountsInnerDTO()
               .hourStart(e.getKey())
               .count(e.getValue()))
           .collect(Collectors.toList());

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/integration/odd/Oddrn.java

@@ -4,36 +4,34 @@ import com.provectus.kafka.ui.model.KafkaCluster;
 import java.net.URI;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
-import lombok.experimental.UtilityClass;
-import org.opendatadiscovery.oddrn.Generator;
 import org.opendatadiscovery.oddrn.model.AwsS3Path;
 import org.opendatadiscovery.oddrn.model.KafkaConnectorPath;
 import org.opendatadiscovery.oddrn.model.KafkaPath;
 
-@UtilityClass
-public class Oddrn {
+public final class Oddrn {
 
-  private static final Generator GENERATOR = new Generator();
+  private Oddrn() {
+  }
 
-  String clusterOddrn(KafkaCluster cluster) {
+  static String clusterOddrn(KafkaCluster cluster) {
     return KafkaPath.builder()
         .cluster(bootstrapServersForOddrn(cluster.getBootstrapServers()))
         .build()
         .oddrn();
   }
 
-  KafkaPath topicOddrnPath(KafkaCluster cluster, String topic) {
+  static KafkaPath topicOddrnPath(KafkaCluster cluster, String topic) {
     return KafkaPath.builder()
         .cluster(bootstrapServersForOddrn(cluster.getBootstrapServers()))
         .topic(topic)
         .build();
   }
 
-  String topicOddrn(KafkaCluster cluster, String topic) {
+  static String topicOddrn(KafkaCluster cluster, String topic) {
     return topicOddrnPath(cluster, topic).oddrn();
   }
 
-  String awsS3Oddrn(String bucket, String key) {
+  static String awsS3Oddrn(String bucket, String key) {
     return AwsS3Path.builder()
         .bucket(bucket)
         .key(key)
@@ -41,14 +39,14 @@ public class Oddrn {
         .oddrn();
   }
 
-  String connectDataSourceOddrn(String connectUrl) {
+  static String connectDataSourceOddrn(String connectUrl) {
     return KafkaConnectorPath.builder()
         .host(normalizedConnectHosts(connectUrl))
         .build()
         .oddrn();
   }
 
-  private String normalizedConnectHosts(String connectUrlStr) {
+  private static String normalizedConnectHosts(String connectUrlStr) {
     return Stream.of(connectUrlStr.split(","))
         .map(String::trim)
         .sorted()
@@ -61,7 +59,7 @@ public class Oddrn {
         .collect(Collectors.joining(","));
   }
 
-  String connectorOddrn(String connectUrl, String connectorName) {
+  static String connectorOddrn(String connectUrl, String connectorName) {
     return KafkaConnectorPath.builder()
         .host(normalizedConnectHosts(connectUrl))
         .connector(connectorName)
@@ -69,7 +67,7 @@ public class Oddrn {
         .oddrn();
   }
 
-  private String bootstrapServersForOddrn(String bootstrapServers) {
+  private static String bootstrapServersForOddrn(String bootstrapServers) {
     return Stream.of(bootstrapServers.split(","))
         .map(String::trim)
         .sorted()

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/integration/odd/schema/AvroExtractor.java

@@ -1,18 +1,18 @@
 package com.provectus.kafka.ui.service.integration.odd.schema;
 
 import com.google.common.collect.ImmutableSet;
-import com.provectus.kafka.ui.service.integration.odd.Oddrn;
 import com.provectus.kafka.ui.sr.model.SchemaSubject;
 import java.util.ArrayList;
 import java.util.List;
-import lombok.experimental.UtilityClass;
 import org.apache.avro.Schema;
 import org.opendatadiscovery.client.model.DataSetField;
 import org.opendatadiscovery.client.model.DataSetFieldType;
 import org.opendatadiscovery.oddrn.model.KafkaPath;
 
-@UtilityClass
-class AvroExtractor {
+final class AvroExtractor {
+
+  private AvroExtractor() {
+  }
 
   static List<DataSetField> extract(SchemaSubject subject, KafkaPath topicOddrn, boolean isKey) {
     var schema = new Schema.Parser().parse(subject.getSchema());
@@ -31,14 +31,14 @@ class AvroExtractor {
     return result;
   }
 
-  private void extract(Schema schema,
-                       String parentOddr,
-                       String oddrn, //null for root
-                       String name,
-                       String doc,
-                       Boolean nullable,
-                       ImmutableSet<String> registeredRecords,
-                       List<DataSetField> sink
+  private static void extract(Schema schema,
+                              String parentOddr,
+                              String oddrn, //null for root
+                              String name,
+                              String doc,
+                              Boolean nullable,
+                              ImmutableSet<String> registeredRecords,
+                              List<DataSetField> sink
   ) {
     switch (schema.getType()) {
       case RECORD -> extractRecord(schema, parentOddr, oddrn, name, doc, nullable, registeredRecords, sink);
@@ -49,12 +49,12 @@ class AvroExtractor {
     }
   }
 
-  private DataSetField createDataSetField(String name,
-                                          String doc,
-                                          String parentOddrn,
-                                          String oddrn,
-                                          Schema schema,
-                                          Boolean nullable) {
+  private static DataSetField createDataSetField(String name,
+                                                 String doc,
+                                                 String parentOddrn,
+                                                 String oddrn,
+                                                 Schema schema,
+                                                 Boolean nullable) {
     return new DataSetField()
         .name(name)
         .description(doc)
@@ -63,14 +63,14 @@ class AvroExtractor {
         .type(mapSchema(schema, nullable));
   }
 
-  private void extractRecord(Schema schema,
-                             String parentOddr,
-                             String oddrn, //null for root
-                             String name,
-                             String doc,
-                             Boolean nullable,
-                             ImmutableSet<String> registeredRecords,
-                             List<DataSetField> sink) {
+  private static void extractRecord(Schema schema,
+                                    String parentOddr,
+                                    String oddrn, //null for root
+                                    String name,
+                                    String doc,
+                                    Boolean nullable,
+                                    ImmutableSet<String> registeredRecords,
+                                    List<DataSetField> sink) {
     boolean isRoot = oddrn == null;
     if (!isRoot) {
       sink.add(createDataSetField(name, doc, parentOddr, oddrn, schema, nullable));
@@ -99,13 +99,13 @@ class AvroExtractor {
         ));
   }
 
-  private void extractUnion(Schema schema,
-                            String parentOddr,
-                            String oddrn, //null for root
-                            String name,
-                            String doc,
-                            ImmutableSet<String> registeredRecords,
-                            List<DataSetField> sink) {
+  private static void extractUnion(Schema schema,
+                                   String parentOddr,
+                                   String oddrn, //null for root
+                                   String name,
+                                   String doc,
+                                   ImmutableSet<String> registeredRecords,
+                                   List<DataSetField> sink) {
     boolean isRoot = oddrn == null;
     boolean containsNull = schema.getTypes().stream().map(Schema::getType).anyMatch(t -> t == Schema.Type.NULL);
     // if it is not root and there is only 2 values for union (null and smth else)
@@ -149,14 +149,14 @@ class AvroExtractor {
     }
   }
 
-  private void extractArray(Schema schema,
-                            String parentOddr,
-                            String oddrn, //null for root
-                            String name,
-                            String doc,
-                            Boolean nullable,
-                            ImmutableSet<String> registeredRecords,
-                            List<DataSetField> sink) {
+  private static void extractArray(Schema schema,
+                                   String parentOddr,
+                                   String oddrn, //null for root
+                                   String name,
+                                   String doc,
+                                   Boolean nullable,
+                                   ImmutableSet<String> registeredRecords,
+                                   List<DataSetField> sink) {
     boolean isRoot = oddrn == null;
     oddrn = isRoot ? parentOddr + "/array" : oddrn;
     if (isRoot) {
@@ -176,14 +176,14 @@ class AvroExtractor {
     );
   }
 
-  private void extractMap(Schema schema,
-                          String parentOddr,
-                          String oddrn, //null for root
-                          String name,
-                          String doc,
-                          Boolean nullable,
-                          ImmutableSet<String> registeredRecords,
-                          List<DataSetField> sink) {
+  private static void extractMap(Schema schema,
+                                 String parentOddr,
+                                 String oddrn, //null for root
+                                 String name,
+                                 String doc,
+                                 Boolean nullable,
+                                 ImmutableSet<String> registeredRecords,
+                                 List<DataSetField> sink) {
     boolean isRoot = oddrn == null;
     oddrn = isRoot ? parentOddr + "/map" : oddrn;
     if (isRoot) {
@@ -214,13 +214,13 @@ class AvroExtractor {
   }
 
 
-  private void extractPrimitive(Schema schema,
-                                String parentOddr,
-                                String oddrn, //null for root
-                                String name,
-                                String doc,
-                                Boolean nullable,
-                                List<DataSetField> sink) {
+  private static void extractPrimitive(Schema schema,
+                                       String parentOddr,
+                                       String oddrn, //null for root
+                                       String name,
+                                       String doc,
+                                       Boolean nullable,
+                                       List<DataSetField> sink) {
     boolean isRoot = oddrn == null;
     String primOddrn = isRoot ? (parentOddr + "/" + schema.getType()) : oddrn;
     if (isRoot) {
@@ -231,7 +231,7 @@ class AvroExtractor {
     }
   }
 
-  private DataSetFieldType.TypeEnum mapType(Schema.Type type) {
+  private static DataSetFieldType.TypeEnum mapType(Schema.Type type) {
     return switch (type) {
       case INT, LONG -> DataSetFieldType.TypeEnum.INTEGER;
       case FLOAT, DOUBLE, FIXED -> DataSetFieldType.TypeEnum.NUMBER;
@@ -246,14 +246,14 @@ class AvroExtractor {
     };
   }
 
-  private DataSetFieldType mapSchema(Schema schema, Boolean nullable) {
+  private static DataSetFieldType mapSchema(Schema schema, Boolean nullable) {
     return new DataSetFieldType()
         .logicalType(logicalType(schema))
         .isNullable(nullable)
         .type(mapType(schema.getType()));
   }
 
-  private String logicalType(Schema schema) {
+  private static String logicalType(Schema schema) {
     return schema.getType() == Schema.Type.RECORD
         ? schema.getFullName()
         : schema.getType().toString().toLowerCase();

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/integration/odd/schema/DataSetFieldsExtractors.java

@@ -1,19 +1,16 @@
 package com.provectus.kafka.ui.service.integration.odd.schema;
 
-import com.provectus.kafka.ui.service.integration.odd.Oddrn;
 import com.provectus.kafka.ui.sr.model.SchemaSubject;
 import com.provectus.kafka.ui.sr.model.SchemaType;
 import java.util.List;
 import java.util.Optional;
-import lombok.experimental.UtilityClass;
 import org.opendatadiscovery.client.model.DataSetField;
 import org.opendatadiscovery.client.model.DataSetFieldType;
 import org.opendatadiscovery.oddrn.model.KafkaPath;
 
-@UtilityClass
-public class DataSetFieldsExtractors {
+public final class DataSetFieldsExtractors {
 
-  public List<DataSetField> extract(SchemaSubject subject, KafkaPath topicOddrn, boolean isKey) {
+  public static List<DataSetField> extract(SchemaSubject subject, KafkaPath topicOddrn, boolean isKey) {
     SchemaType schemaType = Optional.ofNullable(subject.getSchemaType()).orElse(SchemaType.AVRO);
     return switch (schemaType) {
       case AVRO -> AvroExtractor.extract(subject, topicOddrn, isKey);
@@ -23,7 +20,7 @@ public class DataSetFieldsExtractors {
   }
 
 
-  DataSetField rootField(KafkaPath topicOddrn, boolean isKey) {
+  static DataSetField rootField(KafkaPath topicOddrn, boolean isKey) {
     var rootOddrn = topicOddrn.oddrn() + "/columns/" + (isKey ? "key" : "value");
     return new DataSetField()
         .name(isKey ? "key" : "value")

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/integration/odd/schema/JsonSchemaExtractor.java

@@ -1,7 +1,6 @@
 package com.provectus.kafka.ui.service.integration.odd.schema;
 
 import com.google.common.collect.ImmutableSet;
-import com.provectus.kafka.ui.service.integration.odd.Oddrn;
 import com.provectus.kafka.ui.sr.model.SchemaSubject;
 import io.confluent.kafka.schemaregistry.json.JsonSchema;
 import java.net.URI;
@@ -10,7 +9,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import javax.annotation.Nullable;
-import lombok.experimental.UtilityClass;
 import org.everit.json.schema.ArraySchema;
 import org.everit.json.schema.BooleanSchema;
 import org.everit.json.schema.CombinedSchema;
@@ -27,8 +25,10 @@ import org.opendatadiscovery.client.model.DataSetFieldType;
 import org.opendatadiscovery.client.model.MetadataExtension;
 import org.opendatadiscovery.oddrn.model.KafkaPath;
 
-@UtilityClass
-class JsonSchemaExtractor {
+final class JsonSchemaExtractor {
+
+  private JsonSchemaExtractor() {
+  }
 
   static List<DataSetField> extract(SchemaSubject subject, KafkaPath topicOddrn, boolean isKey) {
     Schema schema = new JsonSchema(subject.getSchema()).rawSchema();
@@ -46,13 +46,13 @@ class JsonSchemaExtractor {
     return result;
   }
 
-  private void extract(Schema schema,
-                       String parentOddr,
-                       String oddrn, //null for root
-                       String name,
-                       Boolean nullable,
-                       ImmutableSet<String> registeredRecords,
-                       List<DataSetField> sink) {
+  private static void extract(Schema schema,
+                              String parentOddr,
+                              String oddrn, //null for root
+                              String name,
+                              Boolean nullable,
+                              ImmutableSet<String> registeredRecords,
+                              List<DataSetField> sink) {
     if (schema instanceof ReferenceSchema s) {
       Optional.ofNullable(s.getReferredSchema())
           .ifPresent(refSchema -> extract(refSchema, parentOddr, oddrn, name, nullable, registeredRecords, sink));
@@ -73,12 +73,12 @@ class JsonSchemaExtractor {
     }
   }
 
-  private void extractPrimitive(Schema schema,
-                                String parentOddr,
-                                String oddrn, //null for root
-                                String name,
-                                Boolean nullable,
-                                List<DataSetField> sink) {
+  private static void extractPrimitive(Schema schema,
+                                       String parentOddr,
+                                       String oddrn, //null for root
+                                       String name,
+                                       Boolean nullable,
+                                       List<DataSetField> sink) {
     boolean isRoot = oddrn == null;
     sink.add(
         createDataSetField(
@@ -93,12 +93,12 @@ class JsonSchemaExtractor {
     );
   }
 
-  private void extractUnknown(Schema schema,
-                              String parentOddr,
-                              String oddrn, //null for root
-                              String name,
-                              Boolean nullable,
-                              List<DataSetField> sink) {
+  private static void extractUnknown(Schema schema,
+                                     String parentOddr,
+                                     String oddrn, //null for root
+                                     String name,
+                                     Boolean nullable,
+                                     List<DataSetField> sink) {
     boolean isRoot = oddrn == null;
     sink.add(
         createDataSetField(
@@ -113,13 +113,13 @@ class JsonSchemaExtractor {
     );
   }
 
-  private void extractObject(ObjectSchema schema,
-                             String parentOddr,
-                             String oddrn, //null for root
-                             String name,
-                             Boolean nullable,
-                             ImmutableSet<String> registeredRecords,
-                             List<DataSetField> sink) {
+  private static void extractObject(ObjectSchema schema,
+                                    String parentOddr,
+                                    String oddrn, //null for root
+                                    String name,
+                                    Boolean nullable,
+                                    ImmutableSet<String> registeredRecords,
+                                    List<DataSetField> sink) {
     boolean isRoot = oddrn == null;
     // schemaLocation can be null for empty object schemas (like if it used in anyOf)
     @Nullable var schemaLocation = schema.getSchemaLocation();
@@ -162,13 +162,13 @@ class JsonSchemaExtractor {
     });
   }
 
-  private void extractArray(ArraySchema schema,
-                            String parentOddr,
-                            String oddrn, //null for root
-                            String name,
-                            Boolean nullable,
-                            ImmutableSet<String> registeredRecords,
-                            List<DataSetField> sink) {
+  private static void extractArray(ArraySchema schema,
+                                   String parentOddr,
+                                   String oddrn, //null for root
+                                   String name,
+                                   Boolean nullable,
+                                   ImmutableSet<String> registeredRecords,
+                                   List<DataSetField> sink) {
     boolean isRoot = oddrn == null;
     oddrn = isRoot ? parentOddr + "/array" : oddrn;
     if (isRoot) {
@@ -208,13 +208,13 @@ class JsonSchemaExtractor {
     }
   }
 
-  private void extractCombined(CombinedSchema schema,
-                               String parentOddr,
-                               String oddrn, //null for root
-                               String name,
-                               Boolean nullable,
-                               ImmutableSet<String> registeredRecords,
-                               List<DataSetField> sink) {
+  private static void extractCombined(CombinedSchema schema,
+                                      String parentOddr,
+                                      String oddrn, //null for root
+                                      String name,
+                                      Boolean nullable,
+                                      ImmutableSet<String> registeredRecords,
+                                      List<DataSetField> sink) {
     String combineType = "unknown";
     if (schema.getCriterion() == CombinedSchema.ALL_CRITERION) {
       combineType = "allOf";
@@ -255,24 +255,24 @@ class JsonSchemaExtractor {
     }
   }
 
-  private String getDescription(Schema schema) {
+  private static String getDescription(Schema schema) {
     return Optional.ofNullable(schema.getTitle())
         .orElse(schema.getDescription());
   }
 
-  private String logicalTypeName(Schema schema) {
+  private static String logicalTypeName(Schema schema) {
     return schema.getClass()
         .getSimpleName()
         .replace("Schema", "");
   }
 
-  private DataSetField createDataSetField(Schema schema,
-                                          String name,
-                                          String parentOddrn,
-                                          String oddrn,
-                                          DataSetFieldType.TypeEnum type,
-                                          String logicalType,
-                                          Boolean nullable) {
+  private static DataSetField createDataSetField(Schema schema,
+                                                 String name,
+                                                 String parentOddrn,
+                                                 String oddrn,
+                                                 DataSetFieldType.TypeEnum type,
+                                                 String logicalType,
+                                                 Boolean nullable) {
     return new DataSetField()
         .name(name)
         .parentFieldOddrn(parentOddrn)
@@ -286,7 +286,7 @@ class JsonSchemaExtractor {
         );
   }
 
-  private DataSetFieldType.TypeEnum mapType(Schema type) {
+  private static DataSetFieldType.TypeEnum mapType(Schema type) {
     if (type instanceof NumberSchema) {
       return DataSetFieldType.TypeEnum.NUMBER;
     }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/integration/odd/schema/ProtoExtractor.java

@@ -15,20 +15,17 @@ import com.google.protobuf.Timestamp;
 import com.google.protobuf.UInt32Value;
 import com.google.protobuf.UInt64Value;
 import com.google.protobuf.Value;
-import com.provectus.kafka.ui.service.integration.odd.Oddrn;
 import com.provectus.kafka.ui.sr.model.SchemaSubject;
 import io.confluent.kafka.schemaregistry.protobuf.ProtobufSchema;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
-import lombok.experimental.UtilityClass;
 import org.opendatadiscovery.client.model.DataSetField;
 import org.opendatadiscovery.client.model.DataSetFieldType;
 import org.opendatadiscovery.client.model.DataSetFieldType.TypeEnum;
 import org.opendatadiscovery.oddrn.model.KafkaPath;
 
-@UtilityClass
-class ProtoExtractor {
+final class ProtoExtractor {
 
   private static final Set<String> PRIMITIVES_WRAPPER_TYPE_NAMES = Set.of(
       BoolValue.getDescriptor().getFullName(),
@@ -42,7 +39,10 @@ class ProtoExtractor {
       DoubleValue.getDescriptor().getFullName()
   );
 
-  List<DataSetField> extract(SchemaSubject subject, KafkaPath topicOddrn, boolean isKey) {
+  private ProtoExtractor() {
+  }
+
+  static List<DataSetField> extract(SchemaSubject subject, KafkaPath topicOddrn, boolean isKey) {
     Descriptor schema = new ProtobufSchema(subject.getSchema()).toDescriptor();
     List<DataSetField> result = new ArrayList<>();
     result.add(DataSetFieldsExtractors.rootField(topicOddrn, isKey));
@@ -60,14 +60,14 @@ class ProtoExtractor {
     return result;
   }
 
-  private void extract(Descriptors.FieldDescriptor field,
-                       String parentOddr,
-                       String oddrn, //null for root
-                       String name,
-                       boolean nullable,
-                       boolean repeated,
-                       ImmutableSet<String> registeredRecords,
-                       List<DataSetField> sink) {
+  private static void extract(Descriptors.FieldDescriptor field,
+                              String parentOddr,
+                              String oddrn, //null for root
+                              String name,
+                              boolean nullable,
+                              boolean repeated,
+                              ImmutableSet<String> registeredRecords,
+                              List<DataSetField> sink) {
     if (repeated) {
       extractRepeated(field, parentOddr, oddrn, name, nullable, registeredRecords, sink);
     } else if (field.getType() == Descriptors.FieldDescriptor.Type.MESSAGE) {
@@ -79,12 +79,12 @@ class ProtoExtractor {
 
   // converts some(!) Protobuf Well-known type (from google.protobuf.* packages)
   // see JsonFormat::buildWellKnownTypePrinters for impl details
-  private boolean extractProtoWellKnownType(Descriptors.FieldDescriptor field,
-                                            String parentOddr,
-                                            String oddrn, //null for root
-                                            String name,
-                                            boolean nullable,
-                                            List<DataSetField> sink) {
+  private static boolean extractProtoWellKnownType(Descriptors.FieldDescriptor field,
+                                                   String parentOddr,
+                                                   String oddrn, //null for root
+                                                   String name,
+                                                   boolean nullable,
+                                                   List<DataSetField> sink) {
     // all well-known types are messages
     if (field.getType() != Descriptors.FieldDescriptor.Type.MESSAGE) {
       return false;
@@ -111,13 +111,13 @@ class ProtoExtractor {
     return false;
   }
 
-  private void extractRepeated(Descriptors.FieldDescriptor field,
-                               String parentOddr,
-                               String oddrn, //null for root
-                               String name,
-                               boolean nullable,
-                               ImmutableSet<String> registeredRecords,
-                               List<DataSetField> sink) {
+  private static void extractRepeated(Descriptors.FieldDescriptor field,
+                                      String parentOddr,
+                                      String oddrn, //null for root
+                                      String name,
+                                      boolean nullable,
+                                      ImmutableSet<String> registeredRecords,
+                                      List<DataSetField> sink) {
     sink.add(createDataSetField(name, parentOddr, oddrn, TypeEnum.LIST, "repeated", nullable));
 
     String itemName = field.getType() == Descriptors.FieldDescriptor.Type.MESSAGE
@@ -136,13 +136,13 @@ class ProtoExtractor {
     );
   }
 
-  private void extractMessage(Descriptors.FieldDescriptor field,
-                              String parentOddr,
-                              String oddrn, //null for root
-                              String name,
-                              boolean nullable,
-                              ImmutableSet<String> registeredRecords,
-                              List<DataSetField> sink) {
+  private static void extractMessage(Descriptors.FieldDescriptor field,
+                                     String parentOddr,
+                                     String oddrn, //null for root
+                                     String name,
+                                     boolean nullable,
+                                     ImmutableSet<String> registeredRecords,
+                                     List<DataSetField> sink) {
     if (extractProtoWellKnownType(field, parentOddr, oddrn, name, nullable, sink)) {
       return;
     }
@@ -173,12 +173,12 @@ class ProtoExtractor {
         });
   }
 
-  private void extractPrimitive(Descriptors.FieldDescriptor field,
-                                String parentOddr,
-                                String oddrn,
-                                String name,
-                                boolean nullable,
-                                List<DataSetField> sink) {
+  private static void extractPrimitive(Descriptors.FieldDescriptor field,
+                                       String parentOddr,
+                                       String oddrn,
+                                       String name,
+                                       boolean nullable,
+                                       List<DataSetField> sink) {
     sink.add(
         createDataSetField(
             name,
@@ -191,18 +191,18 @@ class ProtoExtractor {
     );
   }
 
-  private String getLogicalTypeName(Descriptors.FieldDescriptor f) {
+  private static String getLogicalTypeName(Descriptors.FieldDescriptor f) {
     return f.getType() == Descriptors.FieldDescriptor.Type.MESSAGE
         ? f.getMessageType().getFullName()
         : f.getType().name().toLowerCase();
   }
 
-  private DataSetField createDataSetField(String name,
-                                          String parentOddrn,
-                                          String oddrn,
-                                          TypeEnum type,
-                                          String logicalType,
-                                          Boolean nullable) {
+  private static DataSetField createDataSetField(String name,
+                                                 String parentOddrn,
+                                                 String oddrn,
+                                                 TypeEnum type,
+                                                 String logicalType,
+                                                 Boolean nullable) {
     return new DataSetField()
         .name(name)
         .parentFieldOddrn(parentOddrn)
@@ -216,7 +216,7 @@ class ProtoExtractor {
   }
 
 
-  private TypeEnum mapType(Descriptors.FieldDescriptor.Type type) {
+  private static TypeEnum mapType(Descriptors.FieldDescriptor.Type type) {
     return switch (type) {
       case INT32, INT64, SINT32, SFIXED32, SINT64, UINT32, UINT64, FIXED32, FIXED64, SFIXED64 -> TypeEnum.INTEGER;
       case FLOAT, DOUBLE -> TypeEnum.NUMBER;

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/ksql/KsqlApiClient.java

@@ -52,7 +52,10 @@ public class KsqlApiClient {
     boolean error;
 
     public Optional<JsonNode> getColumnValue(List<JsonNode> row, String column) {
-      return Optional.ofNullable(row.get(columnNames.indexOf(column)));
+      int colIdx = columnNames.indexOf(column);
+      return colIdx >= 0
+          ? Optional.ofNullable(row.get(colIdx))
+          : Optional.empty();
     }
   }
 

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/ksql/KsqlServiceV2.java

@@ -89,7 +89,14 @@ public class KsqlServiceV2 {
                       .name(resp.getColumnValue(row, "name").map(JsonNode::asText).orElse(null))
                       .topic(resp.getColumnValue(row, "topic").map(JsonNode::asText).orElse(null))
                       .keyFormat(resp.getColumnValue(row, "keyFormat").map(JsonNode::asText).orElse(null))
-                      .valueFormat(resp.getColumnValue(row, "valueFormat").map(JsonNode::asText).orElse(null)))
+                      .valueFormat(
+                          // for old versions (<0.13) "format" column is filled,
+                          // for new version "keyFormat" & "valueFormat" columns should be filled
+                          resp.getColumnValue(row, "valueFormat")
+                              .or(() -> resp.getColumnValue(row, "format"))
+                              .map(JsonNode::asText)
+                              .orElse(null))
+              )
               .collect(Collectors.toList()));
         });
   }

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/rbac/AccessControlService.java

@@ -21,6 +21,7 @@ import com.provectus.kafka.ui.service.rbac.extractor.GithubAuthorityExtractor;
 import com.provectus.kafka.ui.service.rbac.extractor.GoogleAuthorityExtractor;
 import com.provectus.kafka.ui.service.rbac.extractor.LdapAuthorityExtractor;
 import com.provectus.kafka.ui.service.rbac.extractor.ProviderAuthorityExtractor;
+import jakarta.annotation.PostConstruct;
 import java.util.Collections;
 import java.util.List;
 import java.util.Set;
@@ -28,7 +29,6 @@ import java.util.function.Predicate;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import javax.annotation.Nullable;
-import javax.annotation.PostConstruct;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.collections.CollectionUtils;

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/rbac/extractor/CognitoAuthorityExtractor.java

@@ -1,9 +1,9 @@
 package com.provectus.kafka.ui.service.rbac.extractor;
 
-import com.nimbusds.jose.shaded.json.JSONArray;
 import com.provectus.kafka.ui.model.rbac.Role;
 import com.provectus.kafka.ui.model.rbac.provider.Provider;
 import com.provectus.kafka.ui.service.rbac.AccessControlService;
+import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.stream.Collectors;
@@ -44,7 +44,7 @@ public class CognitoAuthorityExtractor implements ProviderAuthorityExtractor {
         .map(Role::getName)
         .collect(Collectors.toSet());
 
-    JSONArray groups = principal.getAttribute(COGNITO_GROUPS_ATTRIBUTE_NAME);
+    List<String> groups = principal.getAttribute(COGNITO_GROUPS_ATTRIBUTE_NAME);
     if (groups == null) {
       log.debug("Cognito groups param is not present");
       return Mono.just(groupsByUsername);
@@ -56,9 +56,8 @@ public class CognitoAuthorityExtractor implements ProviderAuthorityExtractor {
             .stream()
             .filter(s -> s.getProvider().equals(Provider.OAUTH_COGNITO))
             .filter(s -> s.getType().equals("group"))
-            .anyMatch(subject -> Stream.of(groups.toArray())
+            .anyMatch(subject -> Stream.of(groups)
                 .map(Object::toString)
-                .distinct()
                 .anyMatch(cognitoGroup -> cognitoGroup.equals(subject.getValue()))
             ))
         .map(Role::getName)

kafka-ui-api/src/main/java/com/provectus/kafka/ui/service/rbac/extractor/GithubAuthorityExtractor.java

@@ -12,6 +12,7 @@ import java.util.stream.Stream;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.http.HttpHeaders;
+import org.springframework.security.config.oauth2.client.CommonOAuth2Provider;
 import org.springframework.security.oauth2.client.userinfo.OAuth2UserRequest;
 import org.springframework.security.oauth2.core.user.DefaultOAuth2User;
 import org.springframework.web.reactive.function.client.WebClient;
@@ -24,8 +25,7 @@ public class GithubAuthorityExtractor implements ProviderAuthorityExtractor {
   private static final String USERNAME_ATTRIBUTE_NAME = "login";
   private static final String ORGANIZATION_NAME = "login";
   private static final String GITHUB_ACCEPT_HEADER = "application/vnd.github+json";
-
-  private final WebClient webClient = WebClient.create("https://api.github.com");
+  private static final String DUMMY = "dummy";
 
   @Override
   public boolean isApplicable(String provider) {
@@ -64,9 +64,24 @@ public class GithubAuthorityExtractor implements ProviderAuthorityExtractor {
       return Mono.just(groupsByUsername);
     }
 
+    OAuth2UserRequest req = (OAuth2UserRequest) additionalParams.get("request");
+    String infoEndpoint = req.getClientRegistration().getProviderDetails().getUserInfoEndpoint().getUri();
+
+    if (infoEndpoint == null) {
+      infoEndpoint = CommonOAuth2Provider.GITHUB
+          .getBuilder(DUMMY)
+          .clientId(DUMMY)
+          .build()
+          .getProviderDetails()
+          .getUserInfoEndpoint()
+          .getUri();
+    }
+
+    WebClient webClient = WebClient.create(infoEndpoint);
+
     final Mono<List<Map<String, Object>>> userOrganizations = webClient
         .get()
-        .uri("/user/orgs")
+        .uri("/orgs")
         .headers(headers -> {
           headers.set(HttpHeaders.ACCEPT, GITHUB_ACCEPT_HEADER);
           OAuth2UserRequest request = (OAuth2UserRequest) additionalParams.get("request");

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/GithubReleaseInfo.java

@@ -0,0 +1,53 @@
+package com.provectus.kafka.ui.util;
+
+import com.google.common.annotations.VisibleForTesting;
+import java.time.Duration;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.reactive.function.client.WebClient;
+import reactor.core.publisher.Mono;
+
+@Slf4j
+public class GithubReleaseInfo {
+
+  private static final String GITHUB_LATEST_RELEASE_RETRIEVAL_URL =
+      "https://api.github.com/repos/provectus/kafka-ui/releases/latest";
+
+  private static final Duration GITHUB_API_MAX_WAIT_TIME = Duration.ofSeconds(2);
+
+  public record GithubReleaseDto(String html_url, String tag_name, String published_at) {
+
+    static GithubReleaseDto empty() {
+      return new GithubReleaseDto(null, null, null);
+    }
+  }
+
+  private volatile GithubReleaseDto release = GithubReleaseDto.empty();
+
+  private final Mono<Void> refreshMono;
+
+  public GithubReleaseInfo() {
+    this(GITHUB_LATEST_RELEASE_RETRIEVAL_URL);
+  }
+
+  @VisibleForTesting
+  GithubReleaseInfo(String url) {
+    this.refreshMono = WebClient.create()
+        .get()
+        .uri(url)
+        .exchangeToMono(resp -> resp.bodyToMono(GithubReleaseDto.class))
+        .timeout(GITHUB_API_MAX_WAIT_TIME)
+        .doOnError(th -> log.trace("Error getting latest github release info", th))
+        .onErrorResume(th -> true, th -> Mono.just(GithubReleaseDto.empty()))
+        .doOnNext(release -> this.release = release)
+        .then();
+  }
+
+  public GithubReleaseDto get() {
+    return release;
+  }
+
+  public Mono<Void> refresh() {
+    return refreshMono;
+  }
+
+}

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/KafkaServicesValidation.java

@@ -1,6 +1,7 @@
 package com.provectus.kafka.ui.util;
 
-import com.provectus.kafka.ui.config.ClustersProperties;
+import static com.provectus.kafka.ui.config.ClustersProperties.TruststoreConfig;
+
 import com.provectus.kafka.ui.connect.api.KafkaConnectClientApi;
 import com.provectus.kafka.ui.model.ApplicationPropertyValidationDTO;
 import com.provectus.kafka.ui.service.ReactiveAdminClient;
@@ -13,38 +14,36 @@ import java.util.Optional;
 import java.util.Properties;
 import java.util.function.Supplier;
 import javax.annotation.Nullable;
-import javax.net.ssl.KeyManagerFactory;
 import javax.net.ssl.TrustManagerFactory;
-import lombok.experimental.UtilityClass;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.admin.AdminClient;
 import org.apache.kafka.clients.admin.AdminClientConfig;
 import org.springframework.util.ResourceUtils;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
-import reactor.util.function.Tuple2;
-import reactor.util.function.Tuples;
 
 @Slf4j
-@UtilityClass
-public class KafkaServicesValidation {
+public final class KafkaServicesValidation {
+
+  private KafkaServicesValidation() {
+  }
 
-  private Mono<ApplicationPropertyValidationDTO> valid() {
+  private static Mono<ApplicationPropertyValidationDTO> valid() {
     return Mono.just(new ApplicationPropertyValidationDTO().error(false));
   }
 
-  private Mono<ApplicationPropertyValidationDTO> invalid(String errorMsg) {
+  private static Mono<ApplicationPropertyValidationDTO> invalid(String errorMsg) {
     return Mono.just(new ApplicationPropertyValidationDTO().error(true).errorMessage(errorMsg));
   }
 
-  private Mono<ApplicationPropertyValidationDTO> invalid(Throwable th) {
+  private static Mono<ApplicationPropertyValidationDTO> invalid(Throwable th) {
     return Mono.just(new ApplicationPropertyValidationDTO().error(true).errorMessage(th.getMessage()));
   }
 
   /**
    * Returns error msg, if any.
    */
-  public Optional<String> validateTruststore(ClustersProperties.TruststoreConfig truststoreConfig) {
+  public static Optional<String> validateTruststore(TruststoreConfig truststoreConfig) {
     if (truststoreConfig.getTruststoreLocation() != null && truststoreConfig.getTruststorePassword() != null) {
       try {
         KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
@@ -63,10 +62,10 @@ public class KafkaServicesValidation {
     return Optional.empty();
   }
 
-  public Mono<ApplicationPropertyValidationDTO> validateClusterConnection(String bootstrapServers,
-                                                                          Properties clusterProps,
-                                                                          @Nullable
-                                                                          ClustersProperties.TruststoreConfig ssl) {
+  public static Mono<ApplicationPropertyValidationDTO> validateClusterConnection(String bootstrapServers,
+                                                                                 Properties clusterProps,
+                                                                                 @Nullable
+                                                                                 TruststoreConfig ssl) {
     Properties properties = new Properties();
     SslPropertiesUtil.addKafkaSslProperties(ssl, properties);
     properties.putAll(clusterProps);
@@ -93,7 +92,7 @@ public class KafkaServicesValidation {
         });
   }
 
-  public Mono<ApplicationPropertyValidationDTO> validateSchemaRegistry(
+  public static Mono<ApplicationPropertyValidationDTO> validateSchemaRegistry(
       Supplier<ReactiveFailover<KafkaSrClientApi>> clientSupplier) {
     ReactiveFailover<KafkaSrClientApi> client;
     try {
@@ -108,7 +107,7 @@ public class KafkaServicesValidation {
         .onErrorResume(KafkaServicesValidation::invalid);
   }
 
-  public Mono<ApplicationPropertyValidationDTO> validateConnect(
+  public static Mono<ApplicationPropertyValidationDTO> validateConnect(
       Supplier<ReactiveFailover<KafkaConnectClientApi>> clientSupplier) {
     ReactiveFailover<KafkaConnectClientApi> client;
     try {
@@ -123,7 +122,8 @@ public class KafkaServicesValidation {
         .onErrorResume(KafkaServicesValidation::invalid);
   }
 
-  public Mono<ApplicationPropertyValidationDTO> validateKsql(Supplier<ReactiveFailover<KsqlApiClient>> clientSupplier) {
+  public static Mono<ApplicationPropertyValidationDTO> validateKsql(
+      Supplier<ReactiveFailover<KsqlApiClient>> clientSupplier) {
     ReactiveFailover<KsqlApiClient> client;
     try {
       client = clientSupplier.get();

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/KafkaVersion.java

@@ -1,11 +1,12 @@
 package com.provectus.kafka.ui.util;
 
-import lombok.experimental.UtilityClass;
 import lombok.extern.slf4j.Slf4j;
 
-@UtilityClass
 @Slf4j
-public class KafkaVersion {
+public final class KafkaVersion {
+
+  private KafkaVersion() {
+  }
 
   public static float parse(String version) throws NumberFormatException {
     log.trace("Parsing cluster version [{}]", version);

kafka-ui-api/src/main/java/com/provectus/kafka/ui/util/SslPropertiesUtil.java

@@ -1,27 +1,17 @@
 package com.provectus.kafka.ui.util;
 
 import com.provectus.kafka.ui.config.ClustersProperties;
-import io.netty.handler.ssl.SslContext;
-import io.netty.handler.ssl.SslContextBuilder;
-import java.io.FileInputStream;
-import java.security.KeyStore;
 import java.util.Properties;
 import javax.annotation.Nullable;
-import javax.net.ssl.KeyManagerFactory;
-import javax.net.ssl.SSLContext;
-import javax.net.ssl.TrustManagerFactory;
-import lombok.SneakyThrows;
-import lombok.experimental.UtilityClass;
 import org.apache.kafka.common.config.SslConfigs;
-import org.springframework.http.client.reactive.ReactorClientHttpConnector;
-import org.springframework.util.ResourceUtils;
-import reactor.netty.http.client.HttpClient;
 
-@UtilityClass
-public class SslPropertiesUtil {
+public final class SslPropertiesUtil {
 
-  public void addKafkaSslProperties(@Nullable ClustersProperties.TruststoreConfig truststoreConfig,
-                                    Properties sink) {
+  private SslPropertiesUtil() {
+  }
+
+  public static void addKafkaSslProperties(@Nullable ClustersProperties.TruststoreConfig truststoreConfig,
+                                           Properties sink) {
     if (truststoreConfig != null && truststoreConfig.getTruststoreLocation() != null) {
       sink.put(SslConfigs.SSL_TRUSTSTORE_LOCATION_CONFIG, truststoreConfig.getTruststoreLocation());
       if (truststoreConfig.getTruststorePassword() != null) {

kafka-ui-api/src/main/resources/application-local.yml

@@ -6,6 +6,9 @@ logging:
     #org.springframework.http.codec.json.Jackson2JsonDecoder: DEBUG
     reactor.netty.http.server.AccessLog: INFO
 
+#server:
+#  port: 8080 #- Port in which kafka-ui will run.
+
 kafka:
   clusters:
     - name: local
@@ -42,27 +45,40 @@ kafka:
 spring:
   jmx:
     enabled: true
-  security:
-    oauth2:
-      client:
-        registration:
-          cognito:
-            clientId: xx
-            clientSecret: yy
-            scope: openid
-            client-name: cognito
-            provider: cognito
-            redirect-uri: http://localhost:8080/login/oauth2/code/cognito
-            authorization-grant-type: authorization_code
-        provider:
-          cognito:
-            issuer-uri: https://cognito-idp.eu-central-1.amazonaws.com/eu-central-1_M7cIUn1nj
-            jwk-set-uri: https://cognito-idp.eu-central-1.amazonaws.com/eu-central-1_M7cIUn1nj/.well-known/jwks.json
-            user-name-attribute: username
+
 auth:
   type: DISABLED
-
-roles.file: /tmp/roles.yml
-
-#server:
-#  port: 8080 #- Port in which kafka-ui will run.
+#  type: OAUTH2
+#  oauth2:
+#    client:
+#      cognito:
+#        clientId:
+#        clientSecret:
+#        scope: openid
+#        client-name: cognito
+#        provider: cognito
+#        redirect-uri: http://localhost:8080/login/oauth2/code/cognito
+#        authorization-grant-type: authorization_code
+#        issuer-uri: https://cognito-idp.eu-central-1.amazonaws.com/eu-central-1_M7cIUn1nj
+#        jwk-set-uri: https://cognito-idp.eu-central-1.amazonaws.com/eu-central-1_M7cIUn1nj/.well-known/jwks.json
+#        user-name-attribute: username
+#        custom-params:
+#          type: cognito
+#          logoutUrl: https://kafka-ui.auth.eu-central-1.amazoncognito.com/logout
+#      google:
+#        provider: google
+#        clientId:
+#        clientSecret:
+#        user-name-attribute: email
+#        custom-params:
+#          type: google
+#          allowedDomain: provectus.com
+#      github:
+#        provider: github
+#        clientId:
+#        clientSecret:
+#        scope:
+#          - read:org
+#        user-name-attribute: login
+#        custom-params:
+#          type: github

kafka-ui-api/src/test/java/com/provectus/kafka/ui/AbstractIntegrationTest.java

@@ -16,7 +16,7 @@ import org.springframework.context.ApplicationContextInitializer;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.test.context.ActiveProfiles;
 import org.springframework.test.context.ContextConfiguration;
-import org.springframework.util.SocketUtils;
+import org.springframework.test.util.TestSocketUtils;
 import org.testcontainers.containers.KafkaContainer;
 import org.testcontainers.containers.Network;
 import org.testcontainers.utility.DockerImageName;
@@ -61,7 +61,7 @@ public abstract class AbstractIntegrationTest {
       System.setProperty("kafka.clusters.0.bootstrapServers", kafka.getBootstrapServers());
       // List unavailable hosts to verify failover
       System.setProperty("kafka.clusters.0.schemaRegistry", String.format("http://localhost:%1$s,http://localhost:%1$s,%2$s",
-              SocketUtils.findAvailableTcpPort(), schemaRegistry.getUrl()));
+              TestSocketUtils.findAvailableTcpPort(), schemaRegistry.getUrl()));
       System.setProperty("kafka.clusters.0.kafkaConnect.0.name", "kafka-connect");
       System.setProperty("kafka.clusters.0.kafkaConnect.0.userName", "kafka-connect");
       System.setProperty("kafka.clusters.0.kafkaConnect.0.password", "kafka-connect");

kafka-ui-api/src/test/java/com/provectus/kafka/ui/service/KafkaConfigSanitizerTest.java

@@ -5,13 +5,12 @@ import static org.assertj.core.api.Assertions.assertThat;
 import java.util.Arrays;
 import java.util.Collections;
 import org.junit.jupiter.api.Test;
-import org.springframework.boot.actuate.endpoint.Sanitizer;
 
 class KafkaConfigSanitizerTest {
 
   @Test
   void doNothingIfEnabledPropertySetToFalse() {
-    final Sanitizer sanitizer = new KafkaConfigSanitizer(false, Collections.emptyList());
+    final var sanitizer = new KafkaConfigSanitizer(false, Collections.emptyList());
     assertThat(sanitizer.sanitize("password", "secret")).isEqualTo("secret");
     assertThat(sanitizer.sanitize("sasl.jaas.config", "secret")).isEqualTo("secret");
     assertThat(sanitizer.sanitize("database.password", "secret")).isEqualTo("secret");
@@ -19,7 +18,7 @@ class KafkaConfigSanitizerTest {
 
   @Test
   void obfuscateCredentials() {
-    final Sanitizer sanitizer = new KafkaConfigSanitizer(true, Collections.emptyList());
+    final var sanitizer = new KafkaConfigSanitizer(true, Collections.emptyList());
     assertThat(sanitizer.sanitize("sasl.jaas.config", "secret")).isEqualTo("******");
     assertThat(sanitizer.sanitize("consumer.sasl.jaas.config", "secret")).isEqualTo("******");
     assertThat(sanitizer.sanitize("producer.sasl.jaas.config", "secret")).isEqualTo("******");
@@ -37,7 +36,7 @@ class KafkaConfigSanitizerTest {
 
   @Test
   void notObfuscateNormalConfigs() {
-    final Sanitizer sanitizer = new KafkaConfigSanitizer(true, Collections.emptyList());
+    final var sanitizer = new KafkaConfigSanitizer(true, Collections.emptyList());
     assertThat(sanitizer.sanitize("security.protocol", "SASL_SSL")).isEqualTo("SASL_SSL");
     final String[] bootstrapServer = new String[] {"test1:9092", "test2:9092"};
     assertThat(sanitizer.sanitize("bootstrap.servers", bootstrapServer)).isEqualTo(bootstrapServer);
@@ -45,7 +44,7 @@ class KafkaConfigSanitizerTest {
 
   @Test
   void obfuscateCredentialsWithDefinedPatterns() {
-    final Sanitizer sanitizer = new KafkaConfigSanitizer(true, Arrays.asList("kafka.ui", ".*test.*"));
+    final var sanitizer = new KafkaConfigSanitizer(true, Arrays.asList("kafka.ui", ".*test.*"));
     assertThat(sanitizer.sanitize("consumer.kafka.ui", "secret")).isEqualTo("******");
     assertThat(sanitizer.sanitize("this.is.test.credentials", "secret")).isEqualTo("******");
     assertThat(sanitizer.sanitize("this.is.not.credential", "not.credential"))

kafka-ui-api/src/test/java/com/provectus/kafka/ui/service/ReactiveAdminClientTest.java

@@ -4,8 +4,11 @@ import static com.provectus.kafka.ui.service.ReactiveAdminClient.toMonoWithExcep
 import static java.util.Objects.requireNonNull;
 import static org.apache.kafka.clients.admin.ListOffsetsResult.ListOffsetsResultInfo;
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.assertj.core.api.ThrowableAssert.ThrowingCallable;
 
 import com.provectus.kafka.ui.AbstractIntegrationTest;
+import com.provectus.kafka.ui.exception.ValidationException;
 import com.provectus.kafka.ui.producer.KafkaTestProducer;
 import java.time.Duration;
 import java.util.ArrayList;
@@ -22,16 +25,20 @@ import org.apache.kafka.clients.admin.Config;
 import org.apache.kafka.clients.admin.ConfigEntry;
 import org.apache.kafka.clients.admin.NewTopic;
 import org.apache.kafka.clients.admin.OffsetSpec;
+import org.apache.kafka.clients.admin.TopicDescription;
 import org.apache.kafka.clients.consumer.ConsumerConfig;
 import org.apache.kafka.clients.consumer.KafkaConsumer;
 import org.apache.kafka.clients.consumer.OffsetAndMetadata;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.apache.kafka.common.KafkaFuture;
+import org.apache.kafka.common.Node;
 import org.apache.kafka.common.TopicPartition;
+import org.apache.kafka.common.TopicPartitionInfo;
 import org.apache.kafka.common.config.ConfigResource;
 import org.apache.kafka.common.errors.UnknownTopicOrPartitionException;
 import org.apache.kafka.common.internals.KafkaFutureImpl;
 import org.apache.kafka.common.serialization.StringDeserializer;
+import org.assertj.core.api.ThrowableAssert;
 import org.junit.function.ThrowingRunnable;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
@@ -133,6 +140,56 @@ class ReactiveAdminClientTest extends AbstractIntegrationTest {
         .verifyComplete();
   }
 
+  @Test
+  void filterPartitionsWithLeaderCheckSkipsPartitionsFromTopicWhereSomePartitionsHaveNoLeader() {
+    var filteredPartitions = ReactiveAdminClient.filterPartitionsWithLeaderCheck(
+        List.of(
+            // contains partitions with no leader
+            new TopicDescription("noLeaderTopic", false,
+                List.of(
+                    new TopicPartitionInfo(0, new Node(1, "n1", 9092), List.of(), List.of()),
+                    new TopicPartitionInfo(1, null, List.of(), List.of()))),
+            // should be skipped by predicate
+            new TopicDescription("skippingByPredicate", false,
+                List.of(
+                    new TopicPartitionInfo(0, new Node(1, "n1", 9092), List.of(), List.of()))),
+            // good topic
+            new TopicDescription("good", false,
+                List.of(
+                    new TopicPartitionInfo(0, new Node(1, "n1", 9092), List.of(), List.of()),
+                    new TopicPartitionInfo(1, new Node(2, "n2", 9092), List.of(), List.of()))
+            )),
+        p -> !p.topic().equals("skippingByPredicate"),
+        false
+    );
+
+    assertThat(filteredPartitions)
+        .containsExactlyInAnyOrder(
+            new TopicPartition("good", 0),
+            new TopicPartition("good", 1)
+        );
+  }
+
+  @Test
+  void filterPartitionsWithLeaderCheckThrowExceptionIfThereIsSomePartitionsWithoutLeaderAndFlagSet() {
+    ThrowingCallable call = () -> ReactiveAdminClient.filterPartitionsWithLeaderCheck(
+        List.of(
+            // contains partitions with no leader
+            new TopicDescription("t1", false,
+                List.of(
+                    new TopicPartitionInfo(0, new Node(1, "n1", 9092), List.of(), List.of()),
+                    new TopicPartitionInfo(1, null, List.of(), List.of()))),
+            new TopicDescription("t2", false,
+                List.of(
+                    new TopicPartitionInfo(0, new Node(1, "n1", 9092), List.of(), List.of()))
+            )),
+        p -> true,
+        // setting failOnNoLeader flag
+        true
+    );
+    assertThatThrownBy(call).isInstanceOf(ValidationException.class);
+  }
+
   @Test
   void testListOffsetsUnsafe() {
     String topic = UUID.randomUUID().toString();

kafka-ui-api/src/test/java/com/provectus/kafka/ui/service/RecordEmitterTest.java

@@ -9,6 +9,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 import com.provectus.kafka.ui.AbstractIntegrationTest;
 import com.provectus.kafka.ui.emitter.BackwardRecordEmitter;
 import com.provectus.kafka.ui.emitter.ForwardRecordEmitter;
+import com.provectus.kafka.ui.emitter.MessagesProcessing;
+import com.provectus.kafka.ui.emitter.PollingSettings;
 import com.provectus.kafka.ui.model.ConsumerPosition;
 import com.provectus.kafka.ui.model.TopicMessageEventDTO;
 import com.provectus.kafka.ui.producer.KafkaTestProducer;
@@ -16,7 +18,6 @@ import com.provectus.kafka.ui.serde.api.Serde;
 import com.provectus.kafka.ui.serdes.ConsumerRecordDeserializer;
 import com.provectus.kafka.ui.serdes.PropertyResolverImpl;
 import com.provectus.kafka.ui.serdes.builtin.StringSerde;
-import com.provectus.kafka.ui.util.PollingThrottler;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -106,21 +107,25 @@ class RecordEmitterTest extends AbstractIntegrationTest {
     );
   }
 
+  private MessagesProcessing createMessagesProcessing() {
+    return new MessagesProcessing(RECORD_DESERIALIZER, msg -> true, null);
+  }
+
   @Test
   void pollNothingOnEmptyTopic() {
     var forwardEmitter = new ForwardRecordEmitter(
         this::createConsumer,
         new ConsumerPosition(BEGINNING, EMPTY_TOPIC, null),
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     var backwardEmitter = new BackwardRecordEmitter(
         this::createConsumer,
         new ConsumerPosition(BEGINNING, EMPTY_TOPIC, null),
         100,
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     StepVerifier.create(Flux.create(forwardEmitter))
@@ -141,16 +146,16 @@ class RecordEmitterTest extends AbstractIntegrationTest {
     var forwardEmitter = new ForwardRecordEmitter(
         this::createConsumer,
         new ConsumerPosition(BEGINNING, TOPIC, null),
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     var backwardEmitter = new BackwardRecordEmitter(
         this::createConsumer,
         new ConsumerPosition(LATEST, TOPIC, null),
         PARTITIONS * MSGS_PER_PARTITION,
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     List<String> expectedValues = SENT_RECORDS.stream().map(Record::getValue).collect(Collectors.toList());
@@ -170,16 +175,16 @@ class RecordEmitterTest extends AbstractIntegrationTest {
     var forwardEmitter = new ForwardRecordEmitter(
         this::createConsumer,
         new ConsumerPosition(OFFSET, TOPIC, targetOffsets),
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     var backwardEmitter = new BackwardRecordEmitter(
         this::createConsumer,
         new ConsumerPosition(OFFSET, TOPIC, targetOffsets),
         PARTITIONS * MSGS_PER_PARTITION,
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     var expectedValues = SENT_RECORDS.stream()
@@ -215,16 +220,16 @@ class RecordEmitterTest extends AbstractIntegrationTest {
     var forwardEmitter = new ForwardRecordEmitter(
         this::createConsumer,
         new ConsumerPosition(TIMESTAMP, TOPIC, targetTimestamps),
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     var backwardEmitter = new BackwardRecordEmitter(
         this::createConsumer,
         new ConsumerPosition(TIMESTAMP, TOPIC, targetTimestamps),
         PARTITIONS * MSGS_PER_PARTITION,
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     var expectedValues = SENT_RECORDS.stream()
@@ -254,8 +259,8 @@ class RecordEmitterTest extends AbstractIntegrationTest {
         this::createConsumer,
         new ConsumerPosition(OFFSET, TOPIC, targetOffsets),
         numMessages,
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     var expectedValues = SENT_RECORDS.stream()
@@ -280,8 +285,8 @@ class RecordEmitterTest extends AbstractIntegrationTest {
         this::createConsumer,
         new ConsumerPosition(OFFSET, TOPIC, offsets),
         100,
-        RECORD_DESERIALIZER,
-        PollingThrottler.noop()
+        createMessagesProcessing(),
+        PollingSettings.createDefault()
     );
 
     expectEmitter(backwardEmitter,

kafka-ui-api/src/test/java/com/provectus/kafka/ui/service/TopicsServicePaginationTest.java

@@ -69,7 +69,7 @@ class TopicsServicePaginationTest {
             .map(Objects::toString)
             .map(name -> new TopicDescription(name, false, List.of()))
             .map(topicDescription -> InternalTopic.from(topicDescription, List.of(), null,
-                Metrics.empty(), InternalLogDirStats.empty()))
+                Metrics.empty(), InternalLogDirStats.empty(), "_"))
             .collect(Collectors.toMap(InternalTopic::getName, Function.identity()))
     );
 
@@ -95,7 +95,7 @@ class TopicsServicePaginationTest {
         .map(Objects::toString)
         .map(name -> new TopicDescription(name, false, List.of()))
         .map(topicDescription -> InternalTopic.from(topicDescription, List.of(), null,
-            Metrics.empty(), InternalLogDirStats.empty()))
+            Metrics.empty(), InternalLogDirStats.empty(), "_"))
         .collect(Collectors.toMap(InternalTopic::getName, Function.identity()));
     init(internalTopics);
 
@@ -122,7 +122,7 @@ class TopicsServicePaginationTest {
             .map(Objects::toString)
             .map(name -> new TopicDescription(name, false, List.of()))
             .map(topicDescription -> InternalTopic.from(topicDescription, List.of(), null,
-                Metrics.empty(), InternalLogDirStats.empty()))
+                Metrics.empty(), InternalLogDirStats.empty(), "_"))
             .collect(Collectors.toMap(InternalTopic::getName, Function.identity()))
     );
 
@@ -141,7 +141,7 @@ class TopicsServicePaginationTest {
             .map(Objects::toString)
             .map(name -> new TopicDescription(name, false, List.of()))
             .map(topicDescription -> InternalTopic.from(topicDescription, List.of(), null,
-                Metrics.empty(), InternalLogDirStats.empty()))
+                Metrics.empty(), InternalLogDirStats.empty(), "_"))
             .collect(Collectors.toMap(InternalTopic::getName, Function.identity()))
     );
 
@@ -160,7 +160,7 @@ class TopicsServicePaginationTest {
             .map(Objects::toString)
             .map(name -> new TopicDescription(name, Integer.parseInt(name) % 10 == 0, List.of()))
             .map(topicDescription -> InternalTopic.from(topicDescription, List.of(), null,
-                Metrics.empty(), InternalLogDirStats.empty()))
+                Metrics.empty(), InternalLogDirStats.empty(), "_"))
             .collect(Collectors.toMap(InternalTopic::getName, Function.identity()))
     );
 
@@ -181,7 +181,7 @@ class TopicsServicePaginationTest {
             .map(Objects::toString)
             .map(name -> new TopicDescription(name, Integer.parseInt(name) % 5 == 0, List.of()))
             .map(topicDescription -> InternalTopic.from(topicDescription, List.of(), null,
-                Metrics.empty(), InternalLogDirStats.empty()))
+                Metrics.empty(), InternalLogDirStats.empty(), "_"))
             .collect(Collectors.toMap(InternalTopic::getName, Function.identity()))
     );
 
@@ -202,7 +202,7 @@ class TopicsServicePaginationTest {
             .map(Objects::toString)
             .map(name -> new TopicDescription(name, false, List.of()))
             .map(topicDescription -> InternalTopic.from(topicDescription, List.of(), null,
-                Metrics.empty(), InternalLogDirStats.empty()))
+                Metrics.empty(), InternalLogDirStats.empty(), "_"))
             .collect(Collectors.toMap(InternalTopic::getName, Function.identity()))
     );
 
@@ -224,7 +224,7 @@ class TopicsServicePaginationTest {
                     new TopicPartitionInfo(p, null, List.of(), List.of()))
                 .collect(Collectors.toList())))
         .map(topicDescription -> InternalTopic.from(topicDescription, List.of(), InternalPartitionsOffsets.empty(),
-            Metrics.empty(), InternalLogDirStats.empty()))
+            Metrics.empty(), InternalLogDirStats.empty(), "_"))
         .collect(Collectors.toMap(InternalTopic::getName, Function.identity()));
 
     init(internalTopics);

kafka-ui-api/src/test/java/com/provectus/kafka/ui/service/ksql/KsqlServiceV2Test.java

@@ -15,7 +15,6 @@ import java.util.concurrent.CopyOnWriteArraySet;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
-import org.springframework.util.unit.DataSize;
 import org.testcontainers.utility.DockerImageName;
 
 class KsqlServiceV2Test extends AbstractIntegrationTest {
@@ -27,8 +26,6 @@ class KsqlServiceV2Test extends AbstractIntegrationTest {
   private static final Set<String> STREAMS_TO_DELETE = new CopyOnWriteArraySet<>();
   private static final Set<String> TABLES_TO_DELETE = new CopyOnWriteArraySet<>();
 
-  private static final DataSize maxBuffSize = DataSize.ofMegabytes(20);
-
   @BeforeAll
   static void init() {
     KSQL_DB.start();

kafka-ui-api/src/test/java/com/provectus/kafka/ui/util/GithubReleaseInfoTest.java

@@ -0,0 +1,54 @@
+package com.provectus.kafka.ui.util;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.io.IOException;
+import java.time.Duration;
+import okhttp3.mockwebserver.MockResponse;
+import okhttp3.mockwebserver.MockWebServer;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import reactor.test.StepVerifier;
+
+class GithubReleaseInfoTest {
+
+  private final MockWebServer mockWebServer = new MockWebServer();
+
+  @BeforeEach
+  void startMockServer() throws IOException {
+    mockWebServer.start();
+  }
+
+  @AfterEach
+  void stopMockServer() throws IOException {
+    mockWebServer.close();
+  }
+
+  @Test
+  void test() {
+    mockWebServer.enqueue(new MockResponse()
+        .addHeader("content-type: application/json")
+        .setBody("""
+            {
+              "published_at": "2023-03-09T16:11:31Z",
+              "tag_name": "v0.6.0",
+              "html_url": "https://github.com/provectus/kafka-ui/releases/tag/v0.6.0",
+              "some_unused_prop": "ololo"
+            }
+            """));
+    var url = mockWebServer.url("repos/provectus/kafka-ui/releases/latest").toString();
+
+    var infoHolder = new GithubReleaseInfo(url);
+    infoHolder.refresh().block();
+
+    var i = infoHolder.get();
+    assertThat(i.html_url())
+        .isEqualTo("https://github.com/provectus/kafka-ui/releases/tag/v0.6.0");
+    assertThat(i.published_at())
+        .isEqualTo("2023-03-09T16:11:31Z");
+    assertThat(i.tag_name())
+        .isEqualTo("v0.6.0");
+  }
+
+}

kafka-ui-api/src/test/java/com/provectus/kafka/ui/util/PollingThrottlerTest.java

@@ -5,6 +5,7 @@ import static org.assertj.core.data.Percentage.withPercentage;
 
 import com.google.common.base.Stopwatch;
 import com.google.common.util.concurrent.RateLimiter;
+import com.provectus.kafka.ui.emitter.PollingThrottler;
 import java.util.concurrent.ThreadLocalRandom;
 import java.util.concurrent.TimeUnit;
 import org.junit.jupiter.api.Test;

kafka-ui-contract/pom.xml

@@ -27,20 +27,24 @@
                     <artifactId>spring-boot-starter-validation</artifactId>
                 </dependency>
                 <dependency>
-                    <groupId>io.swagger</groupId>
-                    <artifactId>swagger-annotations</artifactId>
-                    <version>${swagger-annotations.version}</version>
+                    <groupId>io.swagger.core.v3</groupId>
+                    <artifactId>swagger-integration-jakarta</artifactId>
+                    <version>2.2.8</version>
                 </dependency>
                 <dependency>
                     <groupId>org.openapitools</groupId>
                     <artifactId>jackson-databind-nullable</artifactId>
-                    <version>${jackson-databind-nullable.version}</version>
+                    <version>0.2.4</version>
                 </dependency>
                 <dependency>
-                    <groupId>com.google.code.findbugs</groupId>
-                    <artifactId>jsr305</artifactId>
-                    <version>3.0.2</version>
-                    <scope>provided</scope>
+                    <groupId>jakarta.annotation</groupId>
+                    <artifactId>jakarta.annotation-api</artifactId>
+                    <version>2.1.1</version>
+                </dependency>
+                <dependency>
+                    <groupId>javax.annotation</groupId>
+                    <artifactId>javax.annotation-api</artifactId>
+                    <version>1.3.2</version>
                 </dependency>
             </dependencies>
 
@@ -71,6 +75,7 @@
                                         <library>webclient</library>
                                         <useBeanValidation>true</useBeanValidation>
                                         <dateLibrary>java8</dateLibrary>
+                                        <useJakartaEe>true</useJakartaEe>
                                     </configOptions>
                                 </configuration>
                             </execution>
@@ -80,8 +85,7 @@
                                     <goal>generate</goal>
                                 </goals>
                                 <configuration>
-                                    <inputSpec>${project.basedir}/src/main/resources/swagger/kafka-ui-api.yaml
-                                    </inputSpec>
+                                    <inputSpec>${project.basedir}/src/main/resources/swagger/kafka-ui-api.yaml</inputSpec>
                                     <output>${project.build.directory}/generated-sources/api</output>
                                     <generatorName>spring</generatorName>
                                     <modelNameSuffix>DTO</modelNameSuffix>
@@ -89,14 +93,12 @@
                                         <modelPackage>com.provectus.kafka.ui.model</modelPackage>
                                         <apiPackage>com.provectus.kafka.ui.api</apiPackage>
                                         <sourceFolder>kafka-ui-contract</sourceFolder>
-
                                         <reactive>true</reactive>
-
                                         <interfaceOnly>true</interfaceOnly>
                                         <skipDefaultInterface>true</skipDefaultInterface>
                                         <useBeanValidation>true</useBeanValidation>
                                         <useTags>true</useTags>
-
+                                        <useSpringBoot3>true</useSpringBoot3>
                                         <dateLibrary>java8</dateLibrary>
                                     </configOptions>
                                     <typeMappings>
@@ -116,15 +118,13 @@
                                     <generatorName>java</generatorName>
                                     <generateApiTests>false</generateApiTests>
                                     <generateModelTests>false</generateModelTests>
-
                                     <configOptions>
                                         <modelPackage>com.provectus.kafka.ui.connect.model</modelPackage>
                                         <apiPackage>com.provectus.kafka.ui.connect.api</apiPackage>
                                         <sourceFolder>kafka-connect-client</sourceFolder>
-
                                         <asyncNative>true</asyncNative>
                                         <library>webclient</library>
-
+                                        <useJakartaEe>true</useJakartaEe>
                                         <useBeanValidation>true</useBeanValidation>
                                         <dateLibrary>java8</dateLibrary>
                                     </configOptions>
@@ -142,15 +142,13 @@
                                     <generatorName>java</generatorName>
                                     <generateApiTests>false</generateApiTests>
                                     <generateModelTests>false</generateModelTests>
-
                                     <configOptions>
                                         <modelPackage>com.provectus.kafka.ui.sr.model</modelPackage>
                                         <apiPackage>com.provectus.kafka.ui.sr.api</apiPackage>
                                         <sourceFolder>kafka-sr-client</sourceFolder>
-
                                         <asyncNative>true</asyncNative>
                                         <library>webclient</library>
-
+                                        <useJakartaEe>true</useJakartaEe>
                                         <useBeanValidation>true</useBeanValidation>
                                         <dateLibrary>java8</dateLibrary>
                                     </configOptions>