Upgrade io.grpc library in CDS actor

Upgrading to latest version of io.grpc 1.35.0 to fix security issues. The methods named loadBalancerFactory and nameResolverFactory have been removed in the latest version. After going through the grpc-java codebase found that the one's we were using to initialize those factories are made default. Confirmed my understanding by posting a query on grpc-java github repo.

Issue-ID: POLICY-2936
Change-Id: I238700ac3f384ff8e5fdef6c3f2ccfb54bff7005
Signed-off-by: Ram Krishna Verma <ram_krishna.verma@bell.ca>

3 files changed, 6 insertions, 14 deletions

diff --git a/models-interactions/model-impl/cds/pom.xml b/models-interactions/model-impl/cds/pom.xml
index 25da63210..8ed5c2244 100644
--- a/models-interactions/model-impl/cds/pom.xml
+++ b/models-interactions/model-impl/cds/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
   ============LICENSE_START=======================================================
-  Copyright (C) 2019-2020 Bell Canada.
+  Copyright (C) 2019-2021 Bell Canada.
   Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
   ================================================================================
   Licensed under the Apache License, Version 2.0 (the "License");
@@ -33,8 +33,8 @@
   <description>gRPC client implementation to send process message to CDS blueprint processor gRPC endpoint.</description>
 
   <properties>
-    <grpc.version>1.17.1</grpc.version>
-    <protobuf.version>3.6.1</protobuf.version>
+    <grpc.version>1.35.0</grpc.version>
+    <protobuf.version>3.14.0</protobuf.version>
   </properties>
 
   <dependencies>
diff --git a/models-interactions/model-impl/cds/src/main/java/org/onap/policy/cds/client/CdsProcessorGrpcClient.java b/models-interactions/model-impl/cds/src/main/java/org/onap/policy/cds/client/CdsProcessorGrpcClient.java
index efa8369bc..2dc128fd7 100644
--- a/models-interactions/model-impl/cds/src/main/java/org/onap/policy/cds/client/CdsProcessorGrpcClient.java
+++ b/models-interactions/model-impl/cds/src/main/java/org/onap/policy/cds/client/CdsProcessorGrpcClient.java
@@ -1,6 +1,6 @@
 /*-
  * ============LICENSE_START=======================================================
- * Copyright (C) 2019 Bell Canada.
+ * Copyright (C) 2019-2021 Bell Canada.
  * Modifications Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -21,8 +21,6 @@ package org.onap.policy.cds.client;
 
 import com.google.common.base.Preconditions;
 import io.grpc.ManagedChannel;
-import io.grpc.internal.DnsNameResolverProvider;
-import io.grpc.internal.PickFirstLoadBalancerProvider;
 import io.grpc.netty.NettyChannelBuilder;
 import java.util.concurrent.CountDownLatch;
 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput;
@@ -65,8 +63,6 @@ public class CdsProcessorGrpcClient implements AutoCloseable {
         String url = bldr.toString();
 
         this.channel = NettyChannelBuilder.forAddress(props.getHost(), props.getPort())
-            .nameResolverFactory(new DnsNameResolverProvider())
-            .loadBalancerFactory(new PickFirstLoadBalancerProvider())
             .intercept(new BasicAuthClientHeaderInterceptor(props)).usePlaintext().build();
         this.handler = new CdsProcessorHandler(listener, url);
         LOGGER.info("CdsProcessorListener started");
diff --git a/models-interactions/model-simulators/src/test/java/org/onap/policy/simulators/CdsSimulatorTest.java b/models-interactions/model-simulators/src/test/java/org/onap/policy/simulators/CdsSimulatorTest.java
index 07ec0dc04..21d766f09 100644
--- a/models-interactions/model-simulators/src/test/java/org/onap/policy/simulators/CdsSimulatorTest.java
+++ b/models-interactions/model-simulators/src/test/java/org/onap/policy/simulators/CdsSimulatorTest.java
@@ -3,7 +3,7 @@
  * ONAP
  * ================================================================================
  * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * Modifications Copyright (C) 2020 Bell Canada. All rights reserved.
+ * Modifications Copyright (C) 2020-2021 Bell Canada. All rights reserved.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,8 +26,6 @@ import static org.junit.Assert.assertTrue;
 
 import com.google.protobuf.util.JsonFormat;
 import io.grpc.ManagedChannel;
-import io.grpc.internal.DnsNameResolverProvider;
-import io.grpc.internal.PickFirstLoadBalancerProvider;
 import io.grpc.netty.NettyChannelBuilder;
 import io.grpc.stub.StreamObserver;
 import java.io.IOException;
@@ -77,9 +75,7 @@ public class CdsSimulatorTest {
         Builder builder = ExecutionServiceInput.newBuilder();
         JsonFormat.parser().ignoringUnknownFields().merge(reqstr, builder);
         ExecutionServiceInput request = builder.build();
-        ManagedChannel channel = NettyChannelBuilder.forAddress(Util.LOCALHOST, sim.getPort())
-            .nameResolverFactory(new DnsNameResolverProvider())
-            .loadBalancerFactory(new PickFirstLoadBalancerProvider()).usePlaintext().build();
+        ManagedChannel channel = NettyChannelBuilder.forAddress(Util.LOCALHOST, sim.getPort()).usePlaintext().build();
 
         try {
             final CompletableFuture<ExecutionServiceOutput> future = new CompletableFuture<>();