Add changelog

Signed-off-by: Mohit Godwani <[email protected]>

Author: mgodwan

CHANGELOG.md

@@ -20,6 +20,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - [Workload Management] Add Get QueryGroup API Logic ([14709](https://github.com/opensearch-project/OpenSearch/pull/14709))
 - [Workload Management] QueryGroup resource tracking framework changes ([#13897](https://github.com/opensearch-project/OpenSearch/pull/13897))
 - Add slice execution listeners to SearchOperationListener interface ([#15153](https://github.com/opensearch-project/OpenSearch/pull/15153))
+- Add index creation using the context field ([#15290](https://github.com/opensearch-project/OpenSearch/pull/15290))
 
 ### Dependencies
 - Bump `netty` from 4.1.111.Final to 4.1.112.Final ([#15081](https://github.com/opensearch-project/OpenSearch/pull/15081))

server/src/main/java/org/opensearch/cluster/metadata/MetadataCreateIndexService.java

@@ -91,7 +91,6 @@
 import org.opensearch.index.mapper.DocumentMapper;
 import org.opensearch.index.mapper.MapperService;
 import org.opensearch.index.mapper.MapperService.MergeReason;
-import org.opensearch.index.mapper.Mapping;
 import org.opensearch.index.query.QueryShardContext;
 import org.opensearch.index.remote.RemoteStoreCustomMetadataResolver;
 import org.opensearch.index.remote.RemoteStoreEnums.PathHashAlgorithm;
@@ -101,10 +100,8 @@
 import org.opensearch.index.translog.Translog;
 import org.opensearch.indices.IndexCreationException;
 import org.opensearch.indices.IndicesService;
-import org.opensearch.indices.InvalidAliasNameException;
 import org.opensearch.indices.InvalidIndexContextException;
 import org.opensearch.indices.InvalidIndexNameException;
-import org.opensearch.indices.InvalidIndexTemplateException;
 import org.opensearch.indices.RemoteStoreSettings;
 import org.opensearch.indices.ShardLimitValidator;
 import org.opensearch.indices.SystemIndices;
@@ -628,15 +625,18 @@ private ClusterState applyCreateIndexRequestWithV1Templates(
             templates.stream().map(IndexTemplateMetadata::name).collect(Collectors.toList())
         );
 
-        final List<Map<String, Object>> mappings = List.of(Collections.unmodifiableMap(
-            parseV1Mappings(
-                request.mappings(),
-                templates.stream().map(IndexTemplateMetadata::getMappings).collect(toList()),
-                xContentRegistry
+        final List<Map<String, Object>> mappings = List.of(
+            Collections.unmodifiableMap(
+                parseV1Mappings(
+                    request.mappings(),
+                    templates.stream().map(IndexTemplateMetadata::getMappings).collect(toList()),
+                    xContentRegistry
+                )
             )
-        ));
+        );
         Optional<Template> context = applyContext(request, currentState, mappings);
-        Settings aggregateSettings = Settings.builder().put(MetadataIndexTemplateService.resolveSettings(templates))
+        Settings aggregateSettings = Settings.builder()
+            .put(MetadataIndexTemplateService.resolveSettings(templates))
             .put(context.isPresent() ? context.get().settings() : Settings.EMPTY)
             .build();
 
@@ -711,7 +711,8 @@ private ClusterState applyCreateIndexRequestWithV2Template(
         );
 
         Optional<Template> context = applyContext(request, currentState, mappings);
-        Settings aggregateSettings = Settings.builder().put(MetadataIndexTemplateService.resolveSettings(currentState.metadata(), templateName))
+        Settings aggregateSettings = Settings.builder()
+            .put(MetadataIndexTemplateService.resolveSettings(currentState.metadata(), templateName))
             .put(context.isPresent() ? context.get().settings() : Settings.EMPTY)
             .build();
 
@@ -755,8 +756,11 @@ private ClusterState applyCreateIndexRequestWithV2Template(
         );
     }
 
-    private Optional<Template> applyContext(CreateIndexClusterStateUpdateRequest request, ClusterState currentState,
-                              List<Map<String, Object>> mappings) throws IOException {
+    private Optional<Template> applyContext(
+        CreateIndexClusterStateUpdateRequest request,
+        ClusterState currentState,
+        List<Map<String, Object>> mappings
+    ) throws IOException {
         if (request.context() != null) {
             String contextTemplate = MetadataIndexTemplateService.findContextTemplate(currentState.metadata(), request.context());
             ComponentTemplate componentTemplate = currentState.metadata().componentTemplates().get(contextTemplate);
@@ -1734,7 +1738,6 @@ static void validateTranslogDurabilitySettings(Settings requestSettings, Cluster
 
     }
 
-
     static void validateContext(CreateIndexClusterStateUpdateRequest request, ClusterState clusterState) {
         final boolean isContextAllowed = FeatureFlags.isEnabled(FeatureFlags.APPLICATION_BASED_CONFIGURATION_TEMPLATES);
 

server/src/main/java/org/opensearch/indices/InvalidIndexContextException.java

@@ -10,13 +10,21 @@
 
 import org.opensearch.OpenSearchException;
 import org.opensearch.core.common.io.stream.StreamInput;
-import org.opensearch.core.common.io.stream.StreamOutput;
 import org.opensearch.core.rest.RestStatus;
 
 import java.io.IOException;
 
+/**
+ * Exception when the context provided in the creation of an index is invalid.
+ */
 public class InvalidIndexContextException extends OpenSearchException {
 
+    /**
+     *
+     * @param indexName name of the index
+     * @param name context name provided
+     * @param description error message
+     */
     public InvalidIndexContextException(String indexName, String name, String description) {
         super("Invalid context name [{}] provide for index: {}, [{}]", name, indexName, description);
     }