core: InProcessChannelBuilder extends a public API class

core/src/main/java/io/grpc/inprocess/InProcessChannelBuilder.java

@@ -21,11 +21,14 @@
 
 import io.grpc.ChannelLogger;
 import io.grpc.ExperimentalApi;
+import io.grpc.ForwardingChannelBuilder;
 import io.grpc.Internal;
-import io.grpc.internal.AbstractManagedChannelImplBuilder;
+import io.grpc.ManagedChannelBuilder;
 import io.grpc.internal.ClientTransportFactory;
 import io.grpc.internal.ConnectionClientTransport;
 import io.grpc.internal.GrpcUtil;
+import io.grpc.internal.ManagedChannelImplBuilder;
+import io.grpc.internal.ManagedChannelImplBuilder.ClientTransportFactoryBuilder;
 import io.grpc.internal.SharedResourceHolder;
 import java.net.SocketAddress;
 import java.util.concurrent.ScheduledExecutorService;
@@ -42,7 +45,7 @@
  */
 @ExperimentalApi("https://github.com/grpc/grpc-java/issues/1783")
 public final class InProcessChannelBuilder extends
-        AbstractManagedChannelImplBuilder<InProcessChannelBuilder> {
+    ForwardingChannelBuilder<InProcessChannelBuilder> {
   /**
    * Create a channel builder that will connect to the server with the given name.
    *
@@ -67,18 +70,36 @@ public static InProcessChannelBuilder forAddress(String name, int port) {
     throw new UnsupportedOperationException("call forName() instead");
   }
 
+  private final ManagedChannelImplBuilder managedChannelImplBuilder;
   private final String name;
   private ScheduledExecutorService scheduledExecutorService;
   private int maxInboundMetadataSize = Integer.MAX_VALUE;
   private boolean transportIncludeStatusCause = false;
 
   private InProcessChannelBuilder(String name) {
-    super(new InProcessSocketAddress(name), "localhost");
+    super();
     this.name = checkNotNull(name, "name");
+
+    final class InProcessChannelTransportFactoryBuilder implements ClientTransportFactoryBuilder {
+      @Override
+      public ClientTransportFactory buildClientTransportFactory() {
+        return buildTransportFactory();
+      }
+    }
+
+    managedChannelImplBuilder = new ManagedChannelImplBuilder(new InProcessSocketAddress(name),
+        "localhost", new InProcessChannelTransportFactoryBuilder(), null);
+
     // In-process transport should not record its traffic to the stats module.
     // https://github.com/grpc/grpc-java/issues/2284
-    setStatsRecordStartedRpcs(false);
-    setStatsRecordFinishedRpcs(false);
+    managedChannelImplBuilder.setStatsRecordStartedRpcs(false);
+    managedChannelImplBuilder.setStatsRecordFinishedRpcs(false);
+  }
+
+  @Internal
+  @Override
+  protected ManagedChannelBuilder<?> delegate() {
+    return managedChannelImplBuilder;
   }
 
   @Override
@@ -177,13 +198,15 @@ public InProcessChannelBuilder propagateCauseWithStatus(boolean enable) {
     return this;
   }
 
-  @Override
-  @Internal
-  protected ClientTransportFactory buildTransportFactory() {
+  ClientTransportFactory buildTransportFactory() {
     return new InProcessClientTransportFactory(
         name, scheduledExecutorService, maxInboundMetadataSize, transportIncludeStatusCause);
   }
 
+  void setStatsEnabled(boolean value) {
+    this.managedChannelImplBuilder.setStatsEnabled(value);
+  }
+
   /**
    * Creates InProcess transports. Exposed for internal use, as it should be private.
    */

core/src/main/java/io/grpc/inprocess/InternalInProcessChannelBuilder.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2020 The gRPC Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.grpc.inprocess;
+
+import io.grpc.Internal;
+
+/**
+ * Internal {@link InProcessChannelBuilder} accessor.  This is intended for usage internal to the
+ * gRPC team.  If you *really* think you need to use this, contact the gRPC team first.
+ */
+@Internal
+public final class InternalInProcessChannelBuilder {
+
+  public static void setStatsEnabled(InProcessChannelBuilder builder, boolean value) {
+    builder.setStatsEnabled(value);
+  }
+
+  private InternalInProcessChannelBuilder() {}
+}