Remove unused JSONLog marshaling
Signed-off-by: Daniel Nephin <dnephin@docker.com>
This commit is contained in:
parent
638d4cc7e4
commit
231c5cbd50
4 changed files with 66 additions and 213 deletions
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@ -147,9 +147,8 @@ func tailFile(f io.ReadSeeker, logWatcher *logger.LogWatcher, tail int, since ti
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rdr = bytes.NewBuffer(bytes.Join(ls, []byte("\n")))
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}
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dec := json.NewDecoder(rdr)
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l := &jsonlog.JSONLog{}
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for {
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msg, err := decodeLogLine(dec, l)
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msg, err := decodeLogLine(dec, &jsonlog.JSONLog{})
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if err != nil {
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if err != io.EOF {
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logWatcher.Err <- err
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@ -1,178 +0,0 @@
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// This code was initially generated by ffjson <https://github.com/pquerna/ffjson>
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// This code was generated via the following steps:
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// $ go get -u github.com/pquerna/ffjson
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// $ make BIND_DIR=. shell
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// $ ffjson pkg/jsonlog/jsonlog.go
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// $ mv pkg/jsonglog/jsonlog_ffjson.go pkg/jsonlog/jsonlog_marshalling.go
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//
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// It has been modified to improve the performance of time marshalling to JSON
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// and to clean it up.
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// Should this code need to be regenerated when the JSONLog struct is changed,
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// the relevant changes which have been made are:
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// import (
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// "bytes"
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//-
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// "unicode/utf8"
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// )
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//
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// func (mj *JSONLog) MarshalJSON() ([]byte, error) {
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//@@ -20,13 +16,13 @@ func (mj *JSONLog) MarshalJSON() ([]byte, error) {
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// }
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// return buf.Bytes(), nil
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// }
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//+
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// func (mj *JSONLog) MarshalJSONBuf(buf *bytes.Buffer) error {
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//- var err error
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//- var obj []byte
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//- var first bool = true
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//- _ = obj
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//- _ = err
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//- _ = first
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//+ var (
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//+ err error
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//+ timestamp string
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//+ first bool = true
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//+ )
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// buf.WriteString(`{`)
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// if len(mj.Log) != 0 {
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// if first == true {
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//@@ -52,11 +48,11 @@ func (mj *JSONLog) MarshalJSONBuf(buf *bytes.Buffer) error {
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// buf.WriteString(`,`)
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// }
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// buf.WriteString(`"time":`)
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//- obj, err = mj.Created.MarshalJSON()
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//+ timestamp, err = FastTimeMarshalJSON(mj.Created)
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// if err != nil {
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// return err
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// }
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//- buf.Write(obj)
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//+ buf.WriteString(timestamp)
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// buf.WriteString(`}`)
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// return nil
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// }
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// @@ -81,9 +81,10 @@ func (mj *JSONLog) MarshalJSONBuf(buf *bytes.Buffer) error {
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// if len(mj.Log) != 0 {
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// - if first == true {
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// - first = false
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// - } else {
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// - buf.WriteString(`,`)
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// - }
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// + first = false
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// buf.WriteString(`"log":`)
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// ffjsonWriteJSONString(buf, mj.Log)
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// }
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package jsonlog
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import (
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"bytes"
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"unicode/utf8"
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)
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// MarshalJSON marshals the JSONLog.
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func (mj *JSONLog) MarshalJSON() ([]byte, error) {
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var buf bytes.Buffer
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buf.Grow(1024)
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if err := mj.MarshalJSONBuf(&buf); err != nil {
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return nil, err
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}
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return buf.Bytes(), nil
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}
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// MarshalJSONBuf marshals the JSONLog and stores the result to a bytes.Buffer.
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func (mj *JSONLog) MarshalJSONBuf(buf *bytes.Buffer) error {
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var (
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err error
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timestamp string
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first = true
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)
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buf.WriteString(`{`)
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if len(mj.Log) != 0 {
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first = false
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buf.WriteString(`"log":`)
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ffjsonWriteJSONString(buf, mj.Log)
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}
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if len(mj.Stream) != 0 {
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if first {
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first = false
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} else {
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buf.WriteString(`,`)
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}
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buf.WriteString(`"stream":`)
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ffjsonWriteJSONString(buf, mj.Stream)
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}
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if !first {
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buf.WriteString(`,`)
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}
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buf.WriteString(`"time":`)
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timestamp, err = fastTimeMarshalJSON(mj.Created)
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if err != nil {
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return err
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}
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buf.WriteString(timestamp)
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buf.WriteString(`}`)
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return nil
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}
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func ffjsonWriteJSONString(buf *bytes.Buffer, s string) {
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const hex = "0123456789abcdef"
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buf.WriteByte('"')
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start := 0
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for i := 0; i < len(s); {
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if b := s[i]; b < utf8.RuneSelf {
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if 0x20 <= b && b != '\\' && b != '"' && b != '<' && b != '>' && b != '&' {
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i++
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continue
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}
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if start < i {
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buf.WriteString(s[start:i])
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}
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switch b {
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case '\\', '"':
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buf.WriteByte('\\')
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buf.WriteByte(b)
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case '\n':
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buf.WriteByte('\\')
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buf.WriteByte('n')
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case '\r':
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buf.WriteByte('\\')
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buf.WriteByte('r')
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default:
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buf.WriteString(`\u00`)
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buf.WriteByte(hex[b>>4])
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buf.WriteByte(hex[b&0xF])
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}
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i++
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start = i
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continue
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}
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c, size := utf8.DecodeRuneInString(s[i:])
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if c == utf8.RuneError && size == 1 {
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if start < i {
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buf.WriteString(s[start:i])
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}
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buf.WriteString(`\ufffd`)
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i += size
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start = i
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continue
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}
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if c == '\u2028' || c == '\u2029' {
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if start < i {
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buf.WriteString(s[start:i])
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}
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buf.WriteString(`\u202`)
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buf.WriteByte(hex[c&0xF])
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i += size
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start = i
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continue
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}
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i += size
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}
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if start < len(s) {
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buf.WriteString(s[start:])
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}
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buf.WriteByte('"')
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}
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@ -1,32 +0,0 @@
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package jsonlog
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import (
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"regexp"
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"testing"
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"encoding/json"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestJSONLogMarshalJSON(t *testing.T) {
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logs := map[*JSONLog]string{
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{Log: `"A log line with \\"`}: `^{\"log\":\"\\\"A log line with \\\\\\\\\\\"\",\"time\":\".{20,}\"}$`,
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{Log: "A log line"}: `^{\"log\":\"A log line\",\"time\":\".{20,}\"}$`,
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{Log: "A log line with \r"}: `^{\"log\":\"A log line with \\r\",\"time\":\".{20,}\"}$`,
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{Log: "A log line with & < >"}: `^{\"log\":\"A log line with \\u0026 \\u003c \\u003e\",\"time\":\".{20,}\"}$`,
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{Log: "A log line with utf8 : 🚀 ψ ω β"}: `^{\"log\":\"A log line with utf8 : 🚀 ψ ω β\",\"time\":\".{20,}\"}$`,
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{Stream: "stdout"}: `^{\"stream\":\"stdout\",\"time\":\".{20,}\"}$`,
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{}: `^{\"time\":\".{20,}\"}$`,
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// These ones are a little weird
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{Log: "\u2028 \u2029"}: `^{\"log\":\"\\u2028 \\u2029\",\"time\":\".{20,}\"}$`,
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{Log: string([]byte{0xaF})}: `^{\"log\":\"\\ufffd\",\"time\":\".{20,}\"}$`,
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{Log: string([]byte{0x7F})}: `^{\"log\":\"\x7f\",\"time\":\".{20,}\"}$`,
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}
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for jsonLog, expression := range logs {
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data, err := jsonLog.MarshalJSON()
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require.NoError(t, err)
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assert.Regexp(t, regexp.MustCompile(expression), string(data))
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assert.NoError(t, json.Unmarshal(data, &map[string]interface{}{}))
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}
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}
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@ -61,8 +61,72 @@ func (mj *JSONLogs) MarshalJSONBuf(buf *bytes.Buffer) error {
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return nil
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}
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// This is based on ffjsonWriteJSONBytesAsString. It has been changed
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func ffjsonWriteJSONString(buf *bytes.Buffer, s string) {
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const hex = "0123456789abcdef"
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buf.WriteByte('"')
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start := 0
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for i := 0; i < len(s); {
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if b := s[i]; b < utf8.RuneSelf {
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if 0x20 <= b && b != '\\' && b != '"' && b != '<' && b != '>' && b != '&' {
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i++
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continue
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}
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if start < i {
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buf.WriteString(s[start:i])
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}
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switch b {
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case '\\', '"':
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buf.WriteByte('\\')
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buf.WriteByte(b)
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case '\n':
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buf.WriteByte('\\')
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buf.WriteByte('n')
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case '\r':
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buf.WriteByte('\\')
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buf.WriteByte('r')
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default:
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buf.WriteString(`\u00`)
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buf.WriteByte(hex[b>>4])
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buf.WriteByte(hex[b&0xF])
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}
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i++
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start = i
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continue
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}
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c, size := utf8.DecodeRuneInString(s[i:])
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if c == utf8.RuneError && size == 1 {
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if start < i {
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buf.WriteString(s[start:i])
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}
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buf.WriteString(`\ufffd`)
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i += size
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start = i
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continue
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}
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if c == '\u2028' || c == '\u2029' {
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if start < i {
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buf.WriteString(s[start:i])
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}
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buf.WriteString(`\u202`)
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buf.WriteByte(hex[c&0xF])
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i += size
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start = i
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continue
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}
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i += size
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}
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if start < len(s) {
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buf.WriteString(s[start:])
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}
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buf.WriteByte('"')
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}
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// This is based on ffjsonWriteJSONString. It has been changed
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// to accept a string passed as a slice of bytes.
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// TODO: remove duplication with ffjsonWriteJSONString
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func ffjsonWriteJSONBytesAsString(buf *bytes.Buffer, s []byte) {
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const hex = "0123456789abcdef"
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