add xcontent builder settings option (though just calling builder#string() was always possible) to create index

modules/elasticsearch/src/main/java/org/elasticsearch/action/admin/indices/create/CreateIndexRequest.java

@@ -136,6 +136,18 @@ public class CreateIndexRequest extends MasterNodeOperationRequest {
         return this;
     }
 
+    /**
+     * Allows to set the settings using a json builder.
+     */
+    public CreateIndexRequest settings(XContentBuilder builder) {
+        try {
+            settings(builder.string());
+        } catch (IOException e) {
+            throw new ElasticSearchGenerationException("Failed to generate json settings from builder", e);
+        }
+        return this;
+    }
+
     /**
      * The settings to crete the index with (either json/yaml/properties format)
      */

modules/elasticsearch/src/main/java/org/elasticsearch/client/action/admin/indices/create/CreateIndexRequestBuilder.java

@@ -55,6 +55,14 @@ public class CreateIndexRequestBuilder extends BaseIndicesRequestBuilder<CreateI
         return this;
     }
 
+    /**
+     * Allows to set the settings using a json builder.
+     */
+    public CreateIndexRequestBuilder setSettings(XContentBuilder builder) {
+        request.settings(builder);
+        return this;
+    }
+
     /**
      * The settings to crete the index with (either json/yaml/properties format)
      */