fix #2706 set requestPageSize

src/main/java/org/codelibs/fess/Constants.java

@@ -400,6 +400,8 @@ public class Constants extends CoreLibConstants {
 
     public static final String REQUEST_LANGUAGES = "requestLanguages";
 
+    public static final String REQUEST_PAGE_SIZE = "requestPageSize";
+
     public static final String SEARCH_PREFERENCE_LOCAL = "_local";
 
     public static final String GSA_API_VERSION = "3.2";

src/main/java/org/codelibs/fess/helper/SearchHelper.java

@@ -162,13 +162,16 @@ public class SearchHelper {
         final FessConfig fessConfig = ComponentUtil.getFessConfig();
         final QueryHelper queryHelper = ComponentUtil.getQueryHelper();
         final QueryFieldConfig queryFieldConfig = ComponentUtil.getQueryFieldConfig();
+        final int pageSize = params.getPageSize();
+        LaRequestUtil.getOptionalRequest().ifPresent(request -> {
+            request.setAttribute(Constants.REQUEST_PAGE_SIZE, pageSize);
+        });
         return ComponentUtil.getSearchEngineClient().search(fessConfig.getIndexDocumentSearchIndex(), searchRequestBuilder -> {
             queryHelper.processSearchPreference(searchRequestBuilder, userBean, query);
-            return SearchConditionBuilder.builder(searchRequestBuilder).query(query).offset(params.getStartPosition())
-                    .size(params.getPageSize()).facetInfo(params.getFacetInfo()).geoInfo(params.getGeoInfo())
-                    .highlightInfo(params.getHighlightInfo()).similarDocHash(params.getSimilarDocHash())
-                    .responseFields(queryFieldConfig.getResponseFields()).searchRequestType(params.getType())
-                    .trackTotalHits(params.getTrackTotalHits()).build();
+            return SearchConditionBuilder.builder(searchRequestBuilder).query(query).offset(params.getStartPosition()).size(pageSize)
+                    .facetInfo(params.getFacetInfo()).geoInfo(params.getGeoInfo()).highlightInfo(params.getHighlightInfo())
+                    .similarDocHash(params.getSimilarDocHash()).responseFields(queryFieldConfig.getResponseFields())
+                    .searchRequestType(params.getType()).trackTotalHits(params.getTrackTotalHits()).build();
         }, (searchRequestBuilder, execTime, searchResponse) -> {
             searchResponse.ifPresent(r -> {
                 if (r.getTotalShards() != r.getSuccessfulShards() && fessConfig.isQueryTimeoutLogging()) {