org.apache.rocketmq.shaded.io.grpc.PartialForwardingClientCallListener Maven / Gradle / Ivy
/*
* Copyright 2018 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 org.apache.rocketmq.shaded.io.grpc;
import org.apache.rocketmq.shaded.com.google.common.base.MoreObjects;
/**
* A {@link ClientCall.Listener} which forwards all of its methods to another {@link
* ClientCall.Listener} which may have a different parameterized type than the
* onMessage() message type.
*/
abstract class PartialForwardingClientCallListener extends ClientCall.Listener {
/**
* Returns the delegated {@code ClientCall.Listener}.
*/
protected abstract ClientCall.Listener delegate();
@Override
public void onHeaders(Metadata headers) {
delegate().onHeaders(headers);
}
@Override
public void onClose(Status status, Metadata trailers) {
delegate().onClose(status, trailers);
}
@Override
public void onReady() {
delegate().onReady();
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this).add("delegate", delegate()).toString();
}
}