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1   /*
2    * Copyright 2012 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty.example.udt.echo.rendezvousBytes;
17  
18  import io.netty.bootstrap.Bootstrap;
19  import io.netty.channel.ChannelFuture;
20  import io.netty.channel.ChannelInitializer;
21  import io.netty.channel.nio.NioEventLoopGroup;
22  import io.netty.channel.udt.UdtChannel;
23  import io.netty.channel.udt.nio.NioUdtProvider;
24  import io.netty.handler.logging.LogLevel;
25  import io.netty.handler.logging.LoggingHandler;
26  import io.netty.util.concurrent.DefaultExecutorServiceFactory;
27  import io.netty.util.concurrent.ExecutorServiceFactory;
28  
29  import java.net.SocketAddress;
30  
31  /**
32   * UDT Byte Stream Peer
33   * <p/>
34   * Sends one message when a connection is open and echoes back any received data
35   * to the server. Simply put, the echo client initiates the ping-pong traffic
36   * between the echo client and server by sending the first message to the
37   * server.
38   * <p/>
39   */
40  public class ByteEchoPeerBase {
41  
42      protected final int messageSize;
43      protected final SocketAddress myAddress;
44      protected final SocketAddress peerAddress;
45  
46      public ByteEchoPeerBase(int messageSize, SocketAddress myAddress, SocketAddress peerAddress) {
47          this.messageSize = messageSize;
48          this.myAddress = myAddress;
49          this.peerAddress = peerAddress;
50      }
51  
52      public void run() throws Exception {
53          final ExecutorServiceFactory connectFactory = new DefaultExecutorServiceFactory("rendezvous");
54          final NioEventLoopGroup connectGroup =
55                  new NioEventLoopGroup(1, connectFactory, NioUdtProvider.BYTE_PROVIDER);
56  
57          try {
58              final Bootstrap bootstrap = new Bootstrap();
59              bootstrap.group(connectGroup)
60                      .channelFactory(NioUdtProvider.BYTE_RENDEZVOUS)
61                      .handler(new ChannelInitializer<UdtChannel>() {
62                          @Override
63                          protected void initChannel(UdtChannel ch) throws Exception {
64                              ch.pipeline().addLast(
65                                      new LoggingHandler(LogLevel.INFO),
66                                      new ByteEchoPeerHandler(messageSize));
67                          }
68                      });
69              final ChannelFuture future = bootstrap.connect(peerAddress, myAddress).sync();
70              future.channel().closeFuture().sync();
71          } finally {
72              connectGroup.shutdownGracefully();
73          }
74      }
75  }