[GRPC] Throw exceptions for currently unsupported request-side fields

Signed-off-by: Karen X <[email protected]>

Author: karenx

CHANGELOG.md

@@ -72,6 +72,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Bump opensearch-protobufs dependency to 0.24.0 and update transport-grpc module compatibility ([#20059](https://github.com/opensearch-project/OpenSearch/pull/20059))
 
 - Refactor the ShardStats, WarmerStats and IndexingPressureStats class to use the Builder pattern instead of constructors ([#19966](https://github.com/opensearch-project/OpenSearch/pull/19966))
+- Throw exceptions for currently unsupported GRPC request-side fields ([#20162](https://github.com/opensearch-project/OpenSearch/pull/20162))
 
 ### Fixed
 - Fix Allocation and Rebalance Constraints of WeightFunction are incorrectly reset ([#19012](https://github.com/opensearch-project/OpenSearch/pull/19012))

modules/transport-grpc/src/main/java/org/opensearch/transport/grpc/proto/request/document/bulk/BulkRequestProtoUtils.java

@@ -85,6 +85,16 @@ public static org.opensearch.action.bulk.BulkRequest prepareRequest(BulkRequest
             )
         );
 
+        // Type is a deprecated field according to the spec, thus no plans to support it
+        if (request.hasType()) {
+            throw new UnsupportedOperationException("type param is not supported");
+        }
+
+        // TODO support global_params
+        if (request.hasGlobalParams()) {
+            throw new UnsupportedOperationException("global_params param is not supported yet");
+        }
+
         return bulkRequest;
     }
 }

modules/transport-grpc/src/main/java/org/opensearch/transport/grpc/proto/request/search/SearchRequestProtoUtils.java

@@ -183,6 +183,16 @@ protected static void parseSearchRequest(
                 ? parseTimeValue(request.getCancelAfterTimeInterval(), null, "cancel_after_time_interval")
                 : null
         );
+
+        // TODO support typed_keys
+        if (request.hasTypedKeys()) {
+            throw new UnsupportedOperationException("typed_keys param is not supported yet");
+        }
+
+        // TODO support global_params
+        if (request.hasGlobalParams()) {
+            throw new UnsupportedOperationException("global_params param is not supported yet");
+        }
     }
 
     /**

modules/transport-grpc/src/main/java/org/opensearch/transport/grpc/proto/request/search/SearchSourceBuilderProtoUtils.java

@@ -154,15 +154,18 @@ private static void parseNonQueryFields(
         }
 
         // TODO support aggregations
-        /*
-        if(protoRequest.hasAggs()){}
-        */
+        if (protoRequest.getAggregationsCount() > 0) {
+            throw new UnsupportedOperationException("aggregations param is not supported yet");
+        }
 
         if (protoRequest.hasHighlight()) {
             searchSourceBuilder.highlighter(HighlightBuilderProtoUtils.fromProto(protoRequest.getHighlight(), registry));
         }
+
+        // TODO support suggest
         if (protoRequest.hasSuggest()) {
-            searchSourceBuilder.suggest(SuggestBuilderProtoUtils.fromProto(protoRequest.getSuggest()));
+            throw new UnsupportedOperationException("suggest param is not supported yet");
+            // searchSourceBuilder.suggest(SuggestBuilderProtoUtils.fromProto(protoRequest.getSuggest()));
         }
         if (protoRequest.getRescoreCount() > 0) {
             for (Rescore rescore : protoRequest.getRescoreList()) {

modules/transport-grpc/src/main/java/org/opensearch/transport/grpc/proto/request/search/query/TermsQueryBuilderProtoUtils.java

@@ -249,6 +249,9 @@ private static TermsLookup parseTermsLookup(org.opensearch.protobufs.TermsLookup
         if (lookup.hasRouting()) {
             tl.routing(lookup.getRouting());
         }
+        if (lookup.hasStore()) {
+            tl.store(lookup.getStore());
+        }
         return tl;
     }
 }