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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.proxy;
    17
    18  import java.net.InetSocketAddress;
    19  import java.util.concurrent.Executor;
    20  import java.util.concurrent.Executors;
    21
    22  import org.jboss.netty.bootstrap.ServerBootstrap;
    23  import org.jboss.netty.channel.socket.ClientSocketChannelFactory;
    24  import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
    25  import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
    26
    27  /**
    28   * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
    29   * @author <a href="http://gleamynode.net/">Trustin Lee</a>
    30   * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
    31   */
    32  public class HexDumpProxy {
    33
    34      public static void main(String[] args) throws Exception {
    35          // Validate command line options.
    36          if (args.length != 3) {
    37              System.err.println(
    38                      "Usage: " + HexDumpProxy.class.getSimpleName() +
    39                      " <local port> <remote host> <remote port>");
    40              return;
    41          }
    42
    43          // Parse command line options.
    44          int localPort = Integer.parseInt(args[0]);
    45          String remoteHost = args[1];
    46          int remotePort = Integer.parseInt(args[2]);
    47
    48          System.err.println(
    49                  "Proxying *:" + localPort + " to " +
    50                  remoteHost + ':' + remotePort + " ...");
    51
    52          // Configure the bootstrap.
    53          Executor executor = Executors.newCachedThreadPool();
    54          ServerBootstrap sb = new ServerBootstrap(
    55                  new NioServerSocketChannelFactory(executor, executor));
    56
    57          // Set up the event pipeline factory.
    58          ClientSocketChannelFactory cf =
    59                  new NioClientSocketChannelFactory(executor, executor);
    60
    61          sb.setPipelineFactory(
    62                  new HexDumpProxyPipelineFactory(cf, remoteHost, remotePort));
    63
    64          // Start up the server.
    65          sb.bind(new InetSocketAddress(localPort));
    66      }
    67  }