twill-zookeeper/src/main/java/org/apache/twill/zookeeper/ForwardingZKClientService.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.twill.zookeeper;

import com.google.common.base.Supplier;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import org.apache.zookeeper.ZooKeeper;

import java.util.concurrent.Executor;

/**
 *
 */
public abstract class ForwardingZKClientService extends ForwardingZKClient implements ZKClientService {

  private final ZKClientService delegate;

  protected ForwardingZKClientService(ZKClientService delegate) {
    super(delegate);
    this.delegate = delegate;
  }

  @Override
  public Supplier<ZooKeeper> getZooKeeperSupplier() {
    return delegate.getZooKeeperSupplier();
  }

  @Override
  public ListenableFuture<State> start() {
    return delegate.start();
  }

  @Override
  public State startAndWait() {
    return Futures.getUnchecked(start());
  }

  @Override
  public boolean isRunning() {
    return delegate.isRunning();
  }

  @Override
  public State state() {
    return delegate.state();
  }

  @Override
  public ListenableFuture<State> stop() {
    return delegate.stop();
  }

  @Override
  public State stopAndWait() {
    return Futures.getUnchecked(stop());
  }

  @Override
  public void addListener(Listener listener, Executor executor) {
    delegate.addListener(listener, executor);
  }
}