Remove include_type_name parameter from REST layer (#48632)

This commit removes support for the include_type_name parameter from all
REST actions that receive or return mapping configurations.

Relates to #41059

client/rest-high-level/src/test/java/org/elasticsearch/client/indices/GetFieldMappingsResponseTests.java

@@ -88,4 +88,5 @@ private static void toXContent(GetFieldMappingsResponse response, XContentBuilde
         }
         builder.endObject();
     }
+
 }

client/rest-high-level/src/test/java/org/elasticsearch/client/indices/rollover/RolloverResponseTests.java

@@ -25,11 +25,8 @@
 import org.elasticsearch.action.admin.indices.rollover.MaxSizeCondition;
 import org.elasticsearch.common.unit.ByteSizeValue;
 import org.elasticsearch.common.unit.TimeValue;
-import org.elasticsearch.common.xcontent.ToXContent;
 import org.elasticsearch.common.xcontent.XContentBuilder;
 import org.elasticsearch.test.ESTestCase;
-import org.elasticsearch.rest.BaseRestHandler;
-import org.elasticsearch.common.xcontent.ToXContent.Params;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -38,7 +35,6 @@
 import java.util.Map;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
-import java.util.Collections;
 
 import static org.elasticsearch.test.AbstractXContentTestCase.xContentTester;
 
@@ -83,8 +79,6 @@ private Predicate<String> getRandomFieldsExcludeFilter() {
     }
 
     private static void toXContent(RolloverResponse response, XContentBuilder builder) throws IOException {
-        Params params = new ToXContent.MapParams(
-            Collections.singletonMap(BaseRestHandler.INCLUDE_TYPE_NAME_PARAMETER, "false"));
         org.elasticsearch.action.admin.indices.rollover.RolloverResponse serverResponse =
             new org.elasticsearch.action.admin.indices.rollover.RolloverResponse(
                 response.getOldIndex(),
@@ -95,6 +89,6 @@ private static void toXContent(RolloverResponse response, XContentBuilder builde
                 response.isAcknowledged(),
                 response.isShardsAcknowledged()
             );
-        serverResponse.toXContent(builder, params);
+        serverResponse.toXContent(builder, null);
     }
 }

docs/build.gradle

@@ -550,14 +550,12 @@ for (int i = 0; i < 5; i++) {
 buildRestTests.setups['library'] = '''
   - do:
         indices.create:
-          include_type_name: true
           index: library
           body:
             settings:
               number_of_shards: 1
               number_of_replicas: 1
             mappings:
-              book:
                 properties:
                   name:
                     type: text

docs/reference/mapping/removal_of_types.asciidoc

@@ -456,7 +456,7 @@ See some examples of interactions with Elasticsearch with this option set to `fa
 
 [source,console]
 --------------------------------------------------
-PUT index?include_type_name=false
+PUT index
 {
   "mappings": {
     "properties": { <1>
@@ -472,7 +472,7 @@ PUT index?include_type_name=false
 
 [source,console]
 --------------------------------------------------
-PUT index/_mappings?include_type_name=false
+PUT index/_mappings
 {
   "properties": { <1>
     "bar": {
@@ -487,7 +487,7 @@ PUT index/_mappings?include_type_name=false
 
 [source,console]
 --------------------------------------------------
-GET index/_mappings?include_type_name=false
+GET index/_mappings
 --------------------------------------------------
 // TEST[continued]
 
@@ -622,28 +622,12 @@ PUT _template/template1
   }
 }
 
-PUT _template/template2?include_type_name=true
+PUT index-1-01
 {
-  "index_patterns":[ "index-2-*" ],
   "mappings": {
-    "type": {
-      "properties": {
-        "foo": {
-          "type": "keyword"
-        }
-      }
-    }
-  }
-}
-
-PUT index-1-01?include_type_name=true
-{
-  "mappings": {
-    "type": {
-      "properties": {
-        "bar": {
-          "type": "long"
-        }
+    "properties": {
+      "bar": {
+        "type": "long"
       }
     }
   }

docs/reference/mapping/types/date_nanos.asciidoc

@@ -30,14 +30,12 @@ For instance:
 
 [source,console]
 --------------------------------------------------
-PUT my_index?include_type_name=true
+PUT my_index
 {
   "mappings": {
-    "_doc": {
-      "properties": {
-        "date": {
-          "type": "date_nanos" <1>
-        }
+    "properties": {
+      "date": {
+        "type": "date_nanos" <1>
       }
     }
   }

rest-api-spec/src/main/resources/rest-api-spec/test/field_caps/10_basic.yml

@@ -152,7 +152,6 @@ setup:
 
   - do:
         indices.create:
-          include_type_name: false
           index: test_nanos
           body:
               mappings:

rest-api-spec/src/main/resources/rest-api-spec/test/indices.create/10_basic.yml

@@ -119,20 +119,3 @@
             properties:
               "":
                 type:     keyword
-
----
-"Create index with explicit _doc type":
-
-  - do:
-      catch: bad_request
-      indices.create:
-        index: test_index
-        body:
-          mappings:
-            _doc:
-              properties:
-                field:
-                  type: keyword
-
-  - match: { error.type: "illegal_argument_exception" }
-  - match: { error.reason: "The mapping definition cannot be nested under a type [_doc] unless include_type_name is set to true." }

rest-api-spec/src/main/resources/rest-api-spec/test/indices.put_template/10_basic.yml

@@ -229,21 +229,3 @@
       indices.put_template:
         name: test
         body: {}
-
----
-"Put template with explicit _doc type":
-
-  - do:
-      catch: bad_request
-      indices.put_template:
-        name: test
-        body:
-          index_patterns: test-*
-          mappings:
-            _doc:
-              properties:
-                field:
-                  type: keyword
-
-  - match: { error.type: "illegal_argument_exception" }
-  - match: { error.reason: "The mapping definition cannot be nested under a type [_doc] unless include_type_name is set to true." }

rest-api-spec/src/main/resources/rest-api-spec/test/indices.rollover/40_mapping.yml

@@ -38,27 +38,3 @@
   - match: { conditions: { "[max_docs: 2]": true } }
   - match: { rolled_over: true }
 
----
-"Mappings with explicit _doc type":
-  - do:
-      indices.create:
-        index: logs-1
-        body:
-          aliases:
-            logs_search: {}
-
-  - do:
-      catch: bad_request
-      indices.rollover:
-        alias: "logs_search"
-        body:
-          conditions:
-            max_docs: 2
-          mappings:
-            _doc:
-              properties:
-                field:
-                  type: keyword
-
-  - match: { error.caused_by.type: "illegal_argument_exception" }
-  - match: { error.caused_by.reason: "The mapping definition cannot be nested under a type [_doc] unless include_type_name is set to true." }

rest-api-spec/src/main/resources/rest-api-spec/test/search.aggregation/280_geohash_grid.yml

@@ -1,7 +1,6 @@
 setup:
   - do:
       indices.create:
-        include_type_name: false
         index: test_1
         body:
           settings:

rest-api-spec/src/main/resources/rest-api-spec/test/search.aggregation/290_geotile_grid.yml

@@ -2,7 +2,6 @@ setup:
 
   - do:
       indices.create:
-        include_type_name: false
         index: test_1
         body:
           settings: