/*
    * 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.giraph.comm.netty;
  
  import java.net.InetSocketAddress;
  
  import org.apache.giraph.bsp.CentralizedServiceMaster;
  import org.apache.giraph.comm.MasterServer;
  import org.apache.giraph.comm.flow_control.FlowControl;
  import org.apache.giraph.comm.netty.handler.MasterRequestServerHandler;
  import org.apache.giraph.conf.ImmutableClassesGiraphConfiguration;
  import org.apache.hadoop.util.Progressable;
  
  /**
   * Netty implementation of {@link MasterServer}
   */
  public class NettyMasterServer implements MasterServer {
    /** Netty client that does the actual I/O */
    private final NettyServer nettyServer;
  
    /**
     * Constructor
     *
     * @param conf Hadoop configuration
     * @param service Centralized service
     * @param progressable Progressable for reporting progress
     * @param exceptionHandler to handle uncaught exceptions
     */
    public NettyMasterServer(ImmutableClassesGiraphConfiguration conf,
        CentralizedServiceMaster<?, ?, ?> service,
        Progressable progressable,
        Thread.UncaughtExceptionHandler exceptionHandler) {
      nettyServer = new NettyServer(conf,
          new MasterRequestServerHandler.Factory(service.getGlobalCommHandler()),
          service.getMasterInfo(), progressable, exceptionHandler);
      nettyServer.start();
    }
  
    @Override
    public InetSocketAddress getMyAddress() {
      return nettyServer.getMyAddress();
    }
  
    @Override
    public String getLocalHostOrIp() {
      return nettyServer.getLocalHostOrIp();
    }
  
    @Override
    public void close() {
      nettyServer.stop();
    }
  
    @Override
    public void setFlowControl(FlowControl flowControl) {
      nettyServer.setFlowControl(flowControl);
    }
  }