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    1   /*
    2    * Copyright 2009 Red Hat, Inc.
    3    *
    4    * Red Hat licenses this file to you under the Apache License, version 2.0
    5    * (the "License"); you may not use this file except in compliance with the
    6    * 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 java.net.InetSocketAddress;
    19  import java.util.concurrent.Executors;
    20
    21  import org.jboss.netty.bootstrap.ClientBootstrap;
    22  import org.jboss.netty.channel.ChannelPipeline;
    23  import org.jboss.netty.channel.ChannelPipelineFactory;
    24  import org.jboss.netty.channel.Channels;
    25  import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
    26  import org.jboss.netty.example.echo.EchoClient;
    27  import org.jboss.netty.handler.codec.serialization.ObjectDecoder;
    28  import org.jboss.netty.handler.codec.serialization.ObjectEncoder;
    29
    30  /**
    31   * Modification of {@link EchoClient} which utilizes Java object serialization.
    32   *
    33   * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
    34   * @author <a href="http://gleamynode.net/">Trustin Lee</a>
    35   *
    36   * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
    37   */
    38  public class ObjectEchoClient {
    39
    40      public static void main(String[] args) throws Exception {
    41          // Print usage if no argument is specified.
    42          if (args.length < 2 || args.length > 3) {
    43              System.err.println(
    44                      "Usage: " + ObjectEchoClient.class.getSimpleName() +
    45                      " <host> <port> [<first message size>]");
    46              return;
    47          }
    48
    49          // Parse options.
    50          final String host = args[0];
    51          final int port = Integer.parseInt(args[1]);
    52          final int firstMessageSize;
    53
    54          if (args.length == 3) {
    55              firstMessageSize = Integer.parseInt(args[2]);
    56          } else {
    57              firstMessageSize = 256;
    58          }
    59
    60          // Configure the client.
    61          ClientBootstrap bootstrap = new ClientBootstrap(
    62                  new NioClientSocketChannelFactory(
    63                          Executors.newCachedThreadPool(),
    64                          Executors.newCachedThreadPool()));
    65
    66          // Set up the pipeline factory.
    67          bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
    68              public ChannelPipeline getPipeline() throws Exception {
    69                  return Channels.pipeline(
    70                          new ObjectEncoder(),
    71                          new ObjectDecoder(),
    72                          new ObjectEchoClientHandler(firstMessageSize));
    73              }
    74          });
    75
    76          // Start the connection attempt.
    77          bootstrap.connect(new InetSocketAddress(host, port));
    78      }
    79  }