Fixing partial success results for msearch template (#709)

CHANGELOG.md

@@ -12,6 +12,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Removed
 
 ### Fixed
+- Fix partial success results for msearch_template ([#709](https://github.com/opensearch-project/opensearch-java/pull/709))
 
 ### Security
 

java-client/src/main/java/org/opensearch/client/opensearch/_types/ErrorResponse.java

@@ -62,14 +62,14 @@ private enum Kind {
 
     private final ErrorCause error;
 
-    private final int status;
+    private final Integer status;
 
     // ---------------------------------------------------------------------------------------------
 
     private ErrorResponse(Builder builder) {
 
         this.error = ApiTypeHelper.requireNonNull(builder.error, this, "error");
-        this.status = ApiTypeHelper.requireNonNull(builder.status, this, "status");
+        this.status = builder.status;
 
     }
 
@@ -87,7 +87,7 @@ public final ErrorCause error() {
     /**
      * Required - API name: {@code status}
      */
-    public final int status() {
+    public final Integer status() {
         return this.status;
     }
 
@@ -105,8 +105,10 @@ protected void serializeInternal(JsonGenerator generator, JsonpMapper mapper) {
         generator.writeKey("error");
         this.error.serialize(generator, mapper);
 
-        generator.writeKey("status");
-        generator.write(this.status);
+        if (this.status != null) {
+            generator.writeKey("status");
+            generator.write(this.status);
+        }
 
     }
 

java-client/src/test/java/org/opensearch/client/opensearch/integTest/AbstractClusterClientIT.java

@@ -96,11 +96,8 @@ public void testClusterUpdateSettingNonExistent() throws IOException {
             fail();
         } catch (OpenSearchException e) {
             assertNotNull(e);
-            assertEquals(e.response().status(), 400);
-            assertEquals(
-                e.getMessage(),
-                "Request failed: [illegal_argument_exception] " + "transient setting [no_idea_what_you_are_talking_about], not recognized"
-            );
+            assertEquals(e.response().status().intValue(), 400);
+            assertTrue(e.getMessage().contains("transient setting [no_idea_what_you_are_talking_about], not recognized"));
         }
     }
 

java-client/src/test/java/org/opensearch/client/opensearch/integTest/AbstractRequestIT.java

@@ -335,7 +335,7 @@ public void testDataIngestion() throws Exception {
         assertTrue(msearch.responses().get(0).isResult());
         assertEquals(1, msearch.responses().get(0).result().hits().hits().size());
         assertTrue(msearch.responses().get(1).isFailure());
-        assertEquals(404, msearch.responses().get(1).failure().status());
+        assertEquals(404, msearch.responses().get(1).failure().status().intValue());
     }
 
     @Test

java-client/src/test/java/org/opensearch/client/opensearch/integTest/AbstractSearchTemplateRequestIT.java

@@ -9,13 +9,15 @@
 package org.opensearch.client.opensearch.integTest;
 
 import java.io.IOException;
+import java.util.List;
 import java.util.Map;
 import org.junit.Test;
 import org.opensearch.client.json.JsonData;
 import org.opensearch.client.opensearch._types.Refresh;
 import org.opensearch.client.opensearch._types.mapping.Property;
 import org.opensearch.client.opensearch.core.PutScriptRequest;
 import org.opensearch.client.opensearch.core.SearchTemplateResponse;
+import org.opensearch.client.opensearch.core.msearch_template.RequestItem;
 
 public abstract class AbstractSearchTemplateRequestIT extends OpenSearchJavaClientTestCase {
 
@@ -87,27 +89,43 @@ public void testTemplateSearchAggregations() throws Exception {
 
     @Test
     public void testMultiSearchTemplate() throws Exception {
+        System.out.println("Multi search template test");
         var index = "test-msearch-template";
         createDocuments(index);
 
+        RequestItem requestItem = RequestItem.of(
+            r -> r.header(h -> h.index(index))
+                .body(
+                    t -> t.id(TEST_SEARCH_TEMPLATE)
+                        .params("title", JsonData.of("Document"))
+                        .params("suggs", JsonData.of(false))
+                        .params("aggs", JsonData.of(false))
+                )
+        );
+        // adding a request to non existing template to test partial results
+        RequestItem requestItem2 = RequestItem.of(
+            r -> r.header(h -> h.index(index))
+                .body(
+                    t -> t.id("my-other-search-template")
+                        .params("title", JsonData.of("Document"))
+                        .params("suggs", JsonData.of(false))
+                        .params("aggs", JsonData.of(false))
+                )
+        );
+
         var searchResponse = javaClient().msearchTemplate(
-            request -> request.searchTemplates(
-                r -> r.header(h -> h.index(index))
-                    .body(
-                        t -> t.id(TEST_SEARCH_TEMPLATE)
-                            .params("title", JsonData.of("Document"))
-                            .params("suggs", JsonData.of(false))
-                            .params("aggs", JsonData.of(false))
-                    )
-            ),
+            request -> request.searchTemplates(List.of(requestItem, requestItem2)),
             SimpleDoc.class
         );
 
-        assertEquals(1, searchResponse.responses().size());
+        assertEquals(2, searchResponse.responses().size());
         var response = searchResponse.responses().get(0);
         assertTrue(response.isResult());
         assertNull(response.result().status());
         assertEquals(4, response.result().hits().hits().size());
+        var failureResponse = searchResponse.responses().get(1);
+        assertTrue(failureResponse.isFailure());
+        assertNull(failureResponse.failure().status());
     }
 
     private SearchTemplateResponse<SimpleDoc> sendTemplateRequest(String index, String title, boolean suggs, boolean aggs)

java-client/src/test/java/org/opensearch/client/opensearch/json/jackson/JacksonJsonpParserTest.java

@@ -185,7 +185,7 @@ public void testMultiSearchResponse() {
         MsearchResponse<Foo> response = fromJson(json, MsearchResponse.class, mapper);
 
         assertEquals(2, response.responses().size());
-        assertEquals(404, response.responses().get(0).failure().status());
+        assertEquals(404, response.responses().get(0).failure().status().intValue());
         assertEquals((Integer) 200, response.responses().get(1).result().status());
     }