Merge in gapic_config_v2 (googleapis#2721)

* Add Gapic config v2 (googleapis#2665)
* Whittling down config_v2 (googleapis#2666)
* Add ConfigV2 Validator (googleapis#2672)
* AutoValue LongRunningConfig; always use gapic config's polling settings (googleapis#2698)
* ResourceNameOneofConfig fixes (googleapis#2704)
* Start parsing GAPIC config v2 (googleapis#2703)
* Bring back timeout millis in GAPIC config v2 (googleapis#2708)
* Resource names across different protofiles (googleapis#2711)
* Fix missing default retries (googleapis#2718)
* Bug fixes for gapic config v2 parsing (googleapis#2717)

Author: andreamlin

BUILD.bazel

@@ -13,6 +13,7 @@ _COMPILE_DEPS = [
     "@com_fasterxml_jackson_core_jackson_databind//jar",
     "@com_google_api_api_common//jar",
     "@com_google_api_api_compiler//jar",
+    "@com_google_api_api_compiler_testing//jar",
     "@com_google_api_grpc_proto_google_common_protos__com_google_api_codegen//jar",
     "@com_google_auto_value_auto_value//jar",
     "@com_google_auto_value_auto_value_annotations//jar",
@@ -31,7 +32,6 @@ _COMPILE_DEPS = [
 ]
 
 _TEST_COMPILE_DEPS = [
-    "@com_google_api_api_compiler_testing//jar",
     "@com_google_truth_truth//jar",
     "@junit_junit//jar",
     "@pl_pragmatists_JUnitParams//jar",
@@ -60,9 +60,16 @@ proto_library(
     deps = ["@com_google_protobuf//:wrappers_proto"],
 )
 
+proto_library(
+    name = "config_v2_proto",
+    srcs = ["src/main/proto/com/google/api/codegen/v2/config_v2.proto"],
+    deps = ["@com_google_protobuf//:wrappers_proto"],
+)
+
 java_proto_library(
     name = "config_java_proto",
-    deps = [":config_proto"],
+    deps = [":config_proto",
+            ":config_v2_proto"],
 )
 
 java_binary(

src/main/java/com/google/api/codegen/config/DiscoGapicInterfaceConfig.java

@@ -71,8 +71,7 @@ static DiscoGapicInterfaceConfig createInterfaceConfig(
       ResourceNameMessageConfigs messageConfigs,
       ImmutableMap<String, ResourceNameConfig> resourceNameConfigs) {
 
-    RetryCodesConfig retryCodesConfig =
-        RetryCodesConfig.create(model.getDiagCollector(), interfaceConfigProto);
+    RetryCodesConfig retryCodesConfig = RetryCodesConfig.create(interfaceConfigProto);
     ImmutableMap<String, RetryParamsDefinitionProto> retrySettingsDefinition =
         RetryDefinitionsTransformer.createRetrySettingsDefinition(interfaceConfigProto);
 

src/main/java/com/google/api/codegen/config/FixedResourceNameConfig.java

@@ -30,6 +30,7 @@ public abstract class FixedResourceNameConfig implements ResourceNameConfig {
 
   public abstract String getFixedValue();
 
+  @Nullable
   @Override
   public abstract ProtoFile getAssignedProtoFile();
 

src/main/java/com/google/api/codegen/config/GapicInterfaceConfig.java

@@ -36,6 +36,7 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.Objects;
 import javax.annotation.Nullable;
 
 /**
@@ -118,7 +119,6 @@ static GapicInterfaceConfig createInterfaceConfig(
 
     RetryCodesConfig retryCodesConfig =
         RetryCodesConfig.create(
-            diagCollector,
             interfaceConfigProto,
             new ArrayList<>(interfaceInput.getMethodsToGenerate().keySet()),
             protoParser);
@@ -164,19 +164,32 @@ static GapicInterfaceConfig createInterfaceConfig(
     }
 
     ImmutableList.Builder<SingleResourceNameConfig> resourcesBuilder = ImmutableList.builder();
-    for (CollectionConfigProto collectionConfigProto : interfaceConfigProto.getCollectionsList()) {
-      String entityName = collectionConfigProto.getEntityName();
-      ResourceNameConfig resourceName = resourceNameConfigs.get(entityName);
-      if (!(resourceName instanceof SingleResourceNameConfig)) {
-        diagCollector.addDiag(
-            Diag.error(
-                SimpleLocation.TOPLEVEL,
-                "Inconsistent configuration - single resource name %s specified for interface, "
-                    + " but was not found in GapicProductConfig configuration.",
-                entityName));
-        return null;
+    if (protoParser.isProtoAnnotationsEnabled()) {
+      resourceNameConfigs
+          .values()
+          .stream()
+          .filter(
+              r ->
+                  r.getResourceNameType() == ResourceNameType.SINGLE
+                      && Objects.equals(r.getAssignedProtoFile(), apiInterface.getFile()))
+          .map(r -> (SingleResourceNameConfig) r)
+          .forEach(resourcesBuilder::add);
+    } else {
+      for (CollectionConfigProto collectionConfigProto :
+          interfaceConfigProto.getCollectionsList()) {
+        String entityName = collectionConfigProto.getEntityName();
+        ResourceNameConfig resourceName = resourceNameConfigs.get(entityName);
+        if (!(resourceName instanceof SingleResourceNameConfig)) {
+          diagCollector.addDiag(
+              Diag.error(
+                  SimpleLocation.TOPLEVEL,
+                  "Inconsistent configuration - single resource name %s specified for interface, "
+                      + " but was not found in GapicProductConfig configuration.",
+                  entityName));
+          return null;
+        }
+        resourcesBuilder.add((SingleResourceNameConfig) resourceName);
       }
-      resourcesBuilder.add((SingleResourceNameConfig) resourceName);
     }
     ImmutableList<SingleResourceNameConfig> singleResourceNames = resourcesBuilder.build();