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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 org.jboss.netty.example.objectecho;
17  
18  import org.jboss.netty.bootstrap.ClientBootstrap;
19  import org.jboss.netty.channel.ChannelFuture;
20  import org.jboss.netty.channel.ChannelPipeline;
21  import org.jboss.netty.channel.ChannelPipelineFactory;
22  import org.jboss.netty.channel.Channels;
23  import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
24  import org.jboss.netty.example.echo.EchoClient;
25  import org.jboss.netty.handler.codec.serialization.ClassResolvers;
26  import org.jboss.netty.handler.codec.serialization.ObjectDecoder;
27  import org.jboss.netty.handler.codec.serialization.ObjectEncoder;
28  import org.jboss.netty.handler.ssl.SslContext;
29  import org.jboss.netty.handler.ssl.util.InsecureTrustManagerFactory;
30  
31  import java.net.InetSocketAddress;
32  import java.util.concurrent.Executors;
33  
34  /**
35   * Modification of {@link EchoClient} which utilizes Java object serialization.
36   */
37  public final class ObjectEchoClient {
38  
39      static final boolean SSL = System.getProperty("ssl") != null;
40      static final String HOST = System.getProperty("host", "127.0.0.1");
41      static final int PORT = Integer.parseInt(System.getProperty("port", "8007"));
42      static final int SIZE = Integer.parseInt(System.getProperty("size", "256"));
43  
44      public static void main(String[] args) throws Exception {
45          // Configure SSL.
46          final SslContext sslCtx;
47          if (SSL) {
48              sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
49          } else {
50              sslCtx = null;
51          }
52  
53          // Configure the client.
54          ClientBootstrap bootstrap = new ClientBootstrap(
55                  new NioClientSocketChannelFactory(
56                          Executors.newCachedThreadPool(),
57                          Executors.newCachedThreadPool()));
58  
59          try {
60              // Set up the pipeline factory.
61              bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
62                  public ChannelPipeline getPipeline() {
63                      ChannelPipeline p = Channels.pipeline(
64                              new ObjectEncoder(),
65                              new ObjectDecoder(ClassResolvers.cacheDisabled(getClass().getClassLoader())),
66                              new ObjectEchoClientHandler(SIZE)
67                      );
68  
69                      if (sslCtx != null) {
70                          p.addFirst("ssl", sslCtx.newHandler(HOST, PORT));
71                      }
72                      return p;
73                  }
74              });
75  
76              // Start the connection attempt.
77              ChannelFuture f = bootstrap.connect(new InetSocketAddress(HOST, PORT));
78  
79              // Wait until the connection attempt is finished and then the connection is closed.
80              f.sync().getChannel().getCloseFuture().sync();
81          } finally {
82              bootstrap.releaseExternalResources();
83          }
84      }
85  }