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   /*
    * Copyright 2012 The Netty Project
    *
    * The Netty Project 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:
    *
    *   https://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.netty.example.udt.echo.rendezvousBytes;
  
  import io.netty.bootstrap.Bootstrap;
  import io.netty.channel.ChannelFuture;
  import io.netty.channel.ChannelInitializer;
  import io.netty.channel.nio.NioEventLoopGroup;
  import io.netty.channel.udt.UdtChannel;
  import io.netty.channel.udt.nio.NioUdtProvider;
  import io.netty.handler.logging.LogLevel;
  import io.netty.handler.logging.LoggingHandler;
  import io.netty.util.concurrent.DefaultThreadFactory;
  
  import java.net.SocketAddress;
  import java.util.concurrent.ThreadFactory;
  
  /**
   * UDT Byte Stream Peer
   * <p/>
   * Sends one message when a connection is open and echoes back any received data
   * to the server. Simply put, the echo client initiates the ping-pong traffic
   * between the echo client and server by sending the first message to the
   * server.
   * <p/>
   */
  public class ByteEchoPeerBase {
  
      protected final int messageSize;
      protected final SocketAddress myAddress;
      protected final SocketAddress peerAddress;
  
      public ByteEchoPeerBase(int messageSize, SocketAddress myAddress, SocketAddress peerAddress) {
          this.messageSize = messageSize;
          this.myAddress = myAddress;
          this.peerAddress = peerAddress;
      }
  
      public void run() throws Exception {
          final ThreadFactory connectFactory = new DefaultThreadFactory("rendezvous");
          final NioEventLoopGroup connectGroup = new NioEventLoopGroup(1,
                  connectFactory, NioUdtProvider.BYTE_PROVIDER);
          try {
              final Bootstrap bootstrap = new Bootstrap();
              bootstrap.group(connectGroup)
                      .channelFactory(NioUdtProvider.BYTE_RENDEZVOUS)
                      .handler(new ChannelInitializer<UdtChannel>() {
                          @Override
                          protected void initChannel(UdtChannel ch) throws Exception {
                              ch.pipeline().addLast(
                                      new LoggingHandler(LogLevel.INFO),
                                      new ByteEchoPeerHandler(messageSize));
                          }
                      });
              final ChannelFuture future = bootstrap.connect(peerAddress, myAddress).sync();
              future.channel().closeFuture().sync();
          } finally {
              connectGroup.shutdownGracefully();
          }
      }
  }