Remove unsed fields in RestAnalyzeAction (#66215)

Moves ParseFields from `RestAnalyzeAction` to `AnalyzeAction` where they
are actually used for parsing the request body.

Author: chengyang14

client/rest-high-level/src/main/java/org/elasticsearch/client/ml/job/config/CategorizationAnalyzerConfig.java

@@ -18,6 +18,7 @@
  */
 package org.elasticsearch.client.ml.job.config;
 
+import org.elasticsearch.action.admin.indices.analyze.AnalyzeAction;
 import org.elasticsearch.common.ParseField;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.xcontent.ToXContentFragment;
@@ -59,9 +60,9 @@
 public class CategorizationAnalyzerConfig implements ToXContentFragment {
 
     public static final ParseField CATEGORIZATION_ANALYZER = new ParseField("categorization_analyzer");
-    private static final ParseField TOKENIZER = RestAnalyzeAction.Fields.TOKENIZER;
-    private static final ParseField TOKEN_FILTERS = RestAnalyzeAction.Fields.TOKEN_FILTERS;
-    private static final ParseField CHAR_FILTERS = RestAnalyzeAction.Fields.CHAR_FILTERS;
+    private static final ParseField TOKENIZER = AnalyzeAction.Fields.TOKENIZER;
+    private static final ParseField TOKEN_FILTERS = AnalyzeAction.Fields.TOKEN_FILTERS;
+    private static final ParseField CHAR_FILTERS = AnalyzeAction.Fields.CHAR_FILTERS;
 
     /**
      * This method is only used in the unit tests - in production code this config is always parsed as a fragment.

server/src/main/java/org/elasticsearch/action/admin/indices/analyze/AnalyzeAction.java

@@ -54,6 +54,18 @@ private AnalyzeAction() {
         super(NAME, AnalyzeAction.Response::new);
     }
 
+    public static class Fields {
+        public static final ParseField ANALYZER = new ParseField("analyzer");
+        public static final ParseField TEXT = new ParseField("text");
+        public static final ParseField FIELD = new ParseField("field");
+        public static final ParseField TOKENIZER = new ParseField("tokenizer");
+        public static final ParseField TOKEN_FILTERS = new ParseField("filter");
+        public static final ParseField CHAR_FILTERS = new ParseField("char_filter");
+        public static final ParseField EXPLAIN = new ParseField("explain");
+        public static final ParseField ATTRIBUTES = new ParseField("attributes");
+        public static final ParseField NORMALIZER = new ParseField("normalizer");
+    }
+
     /**
      * A request to analyze a text associated with a specific index. Allow to provide
      * the actual analyzer name to perform the analysis with.
@@ -264,19 +276,20 @@ public static Request fromXContent(XContentParser parser, String index) throws I
         }
 
         private static final ObjectParser<Request, Void> PARSER = new ObjectParser<>("analyze_request");
+
         static {
-            PARSER.declareStringArray(Request::text, new ParseField("text"));
-            PARSER.declareString(Request::analyzer, new ParseField("analyzer"));
+            PARSER.declareStringArray(Request::text, Fields.TEXT);
+            PARSER.declareString(Request::analyzer, Fields.ANALYZER);
             PARSER.declareField(Request::tokenizer, (p, c) -> NameOrDefinition.fromXContent(p),
-                new ParseField("tokenizer"), ObjectParser.ValueType.OBJECT_OR_STRING);
+                Fields.TOKENIZER, ObjectParser.ValueType.OBJECT_OR_STRING);
             PARSER.declareObjectArray(Request::setTokenFilters, (p, c) -> NameOrDefinition.fromXContent(p),
-                new ParseField("filter"));
+                Fields.TOKEN_FILTERS);
             PARSER.declareObjectArray(Request::setCharFilters, (p, c) -> NameOrDefinition.fromXContent(p),
-                new ParseField("char_filter"));
-            PARSER.declareString(Request::field, new ParseField("field"));
-            PARSER.declareBoolean(Request::explain, new ParseField("explain"));
-            PARSER.declareStringArray(Request::attributes, new ParseField("attributes"));
-            PARSER.declareString(Request::normalizer, new ParseField("normalizer"));
+                Fields.CHAR_FILTERS);
+            PARSER.declareString(Request::field, Fields.FIELD);
+            PARSER.declareBoolean(Request::explain, Fields.EXPLAIN);
+            PARSER.declareStringArray(Request::attributes, Fields.ATTRIBUTES);
+            PARSER.declareString(Request::normalizer, Fields.NORMALIZER);
         }
 
     }

server/src/main/java/org/elasticsearch/rest/action/admin/indices/RestAnalyzeAction.java

@@ -20,7 +20,6 @@
 
 import org.elasticsearch.action.admin.indices.analyze.AnalyzeAction;
 import org.elasticsearch.client.node.NodeClient;
-import org.elasticsearch.common.ParseField;
 import org.elasticsearch.common.xcontent.XContentParser;
 import org.elasticsearch.rest.BaseRestHandler;
 import org.elasticsearch.rest.RestRequest;
@@ -34,18 +33,6 @@
 
 public class RestAnalyzeAction extends BaseRestHandler {
 
-    public static class Fields {
-        public static final ParseField ANALYZER = new ParseField("analyzer");
-        public static final ParseField TEXT = new ParseField("text");
-        public static final ParseField FIELD = new ParseField("field");
-        public static final ParseField TOKENIZER = new ParseField("tokenizer");
-        public static final ParseField TOKEN_FILTERS = new ParseField("filter");
-        public static final ParseField CHAR_FILTERS = new ParseField("char_filter");
-        public static final ParseField EXPLAIN = new ParseField("explain");
-        public static final ParseField ATTRIBUTES = new ParseField("attributes");
-        public static final ParseField NORMALIZER = new ParseField("normalizer");
-    }
-
     @Override
     public List<Route> routes() {
         return List.of(

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/ml/job/config/CategorizationAnalyzerConfig.java

@@ -5,6 +5,7 @@
  */
 package org.elasticsearch.xpack.core.ml.job.config;
 
+import org.elasticsearch.action.admin.indices.analyze.AnalyzeAction;
 import org.elasticsearch.common.ParseField;
 import org.elasticsearch.common.Strings;
 import org.elasticsearch.common.io.stream.StreamInput;
@@ -54,9 +55,9 @@
 public class CategorizationAnalyzerConfig implements ToXContentFragment, Writeable {
 
     public static final ParseField CATEGORIZATION_ANALYZER = new ParseField("categorization_analyzer");
-    public static final ParseField TOKENIZER = RestAnalyzeAction.Fields.TOKENIZER;
-    public static final ParseField TOKEN_FILTERS = RestAnalyzeAction.Fields.TOKEN_FILTERS;
-    public static final ParseField CHAR_FILTERS = RestAnalyzeAction.Fields.CHAR_FILTERS;
+    public static final ParseField TOKENIZER = AnalyzeAction.Fields.TOKENIZER;
+    public static final ParseField TOKEN_FILTERS = AnalyzeAction.Fields.TOKEN_FILTERS;
+    public static final ParseField CHAR_FILTERS = AnalyzeAction.Fields.CHAR_FILTERS;
 
     /**
      * This method is only used in the unit tests - in production code this config is always parsed as a fragment.