Java high-level REST client bulk() is not respecting the bulkRequest.requireAlias(true) method call

CHANGELOG-3.0.md

@@ -47,6 +47,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Fix 'org.apache.hc.core5.http.ParseException: Invalid protocol version' under JDK 16+ ([#4827](https://github.com/opensearch-project/OpenSearch/pull/4827))
 - Fix compression support for h2c protocol ([#4944](https://github.com/opensearch-project/OpenSearch/pull/4944))
 - Don't over-allocate in HeapBufferedAsyncEntityConsumer in order to consume the response ([#9993](https://github.com/opensearch-project/OpenSearch/pull/9993))
+- Java high-level REST client bulk() is not respecting the bulkRequest.requireAlias(true) method call ([#12958](https://github.com/opensearch-project/OpenSearch/pull/14136))
 
 ### Security
 

client/rest-high-level/src/main/java/org/opensearch/client/RequestConverters.java

@@ -154,6 +154,9 @@ static Request bulk(BulkRequest bulkRequest) throws IOException {
         parameters.withRefreshPolicy(bulkRequest.getRefreshPolicy());
         parameters.withPipeline(bulkRequest.pipeline());
         parameters.withRouting(bulkRequest.routing());
+        if (bulkRequest.requireAlias() != null) {
+            parameters.withRequireAlias(bulkRequest.requireAlias());
+        }
         // Bulk API only supports newline delimited JSON or Smile. Before executing
         // the bulk, we need to check that all requests have the same content-type
         // and this content-type is supported by the Bulk API.
@@ -232,6 +235,10 @@ static Request bulk(BulkRequest bulkRequest) throws IOException {
                             metadata.field("_source", updateRequest.fetchSource());
                         }
                     }
+
+                    if (action.isRequireAlias()) {
+                        metadata.field("require_alias", action.isRequireAlias());
+                    }
                     metadata.endObject();
                 }
                 metadata.endObject();

client/rest-high-level/src/test/java/org/opensearch/client/CrudIT.java

@@ -1299,4 +1299,61 @@ public void testMultiTermvectors() throws IOException {
             }
         }
     }
+
+    public void testBulkWithRequireAlias() throws IOException {
+        {
+            String indexAliasName = "testindex-1";
+
+            BulkRequest bulkRequest = new BulkRequest(indexAliasName);
+            bulkRequest.requireAlias(true);
+            bulkRequest.add(new IndexRequest().id("1").source("{ \"name\": \"Biden\" }", XContentType.JSON));
+            bulkRequest.add(new IndexRequest().id("2").source("{ \"name\": \"Trump\" }", XContentType.JSON));
+
+            BulkResponse bulkResponse = execute(bulkRequest, highLevelClient()::bulk, highLevelClient()::bulkAsync, RequestOptions.DEFAULT);
+
+            assertFalse("Should not auto-create the '" + indexAliasName + "' index.", indexExists(indexAliasName));
+            assertTrue("Bulk response must have failures.", bulkResponse.hasFailures());
+        }
+        {
+            String indexAliasName = "testindex-2";
+
+            BulkRequest bulkRequest = new BulkRequest();
+            bulkRequest.requireAlias(true);
+            bulkRequest.add(new IndexRequest().index(indexAliasName).id("1").source("{ \"name\": \"Biden\" }", XContentType.JSON));
+            bulkRequest.add(new IndexRequest().index(indexAliasName).id("2").source("{ \"name\": \"Trump\" }", XContentType.JSON));
+
+            BulkResponse bulkResponse = execute(bulkRequest, highLevelClient()::bulk, highLevelClient()::bulkAsync, RequestOptions.DEFAULT);
+
+            assertFalse("Should not auto-create the '" + indexAliasName + "' index.", indexExists(indexAliasName));
+            assertTrue("Bulk response must have failures.", bulkResponse.hasFailures());
+        }
+        {
+            String indexAliasName = "testindex-3";
+
+            BulkRequest bulkRequest = new BulkRequest(indexAliasName);
+            bulkRequest.add(new IndexRequest().id("1").setRequireAlias(true).source("{ \"name\": \"Biden\" }", XContentType.JSON));
+            bulkRequest.add(new IndexRequest().id("2").setRequireAlias(true).source("{ \"name\": \"Trump\" }", XContentType.JSON));
+
+            BulkResponse bulkResponse = execute(bulkRequest, highLevelClient()::bulk, highLevelClient()::bulkAsync, RequestOptions.DEFAULT);
+
+            assertFalse("Should not auto-create the '" + indexAliasName + "' index.", indexExists(indexAliasName));
+            assertTrue("Bulk response must have failures.", bulkResponse.hasFailures());
+        }
+        {
+            String indexAliasName = "testindex-4";
+
+            BulkRequest bulkRequest = new BulkRequest();
+            bulkRequest.add(
+                new IndexRequest().index(indexAliasName).id("1").setRequireAlias(true).source("{ \"name\": \"Biden\" }", XContentType.JSON)
+            );
+            bulkRequest.add(
+                new IndexRequest().index(indexAliasName).id("2").setRequireAlias(true).source("{ \"name\": \"Trump\" }", XContentType.JSON)
+            );
+
+            BulkResponse bulkResponse = execute(bulkRequest, highLevelClient()::bulk, highLevelClient()::bulkAsync, RequestOptions.DEFAULT);
+
+            assertFalse("Should not auto-create the '" + indexAliasName + "' index.", indexExists(indexAliasName));
+            assertTrue("Bulk response must have failures.", bulkResponse.hasFailures());
+        }
+    }
 }