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1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  You may obtain a copy of the License at
9    *  
10   *    http://www.apache.org/licenses/LICENSE-2.0
11   *  
12   *  Unless required by applicable law or agreed to in writing,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License. 
18   *  
19   */
20  package org.apache.mina.example.proxy;
21  
22  import java.net.InetSocketAddress;
23  
24  import org.apache.mina.common.ConnectFuture;
25  import org.apache.mina.common.IoConnector;
26  import org.apache.mina.common.IoFuture;
27  import org.apache.mina.common.IoFutureListener;
28  import org.apache.mina.common.IoSession;
29  import org.apache.mina.common.RuntimeIOException;
30  import org.apache.mina.common.TrafficMask;
31  
32  /**
33   * Handles the client to proxy part of the proxied connection.
34   *
35   * @author The Apache Directory Project (mina-dev@directory.apache.org)
36   * @version $Rev$, $Date$
37   *
38   */
39  public class ClientToProxyIoHandler extends AbstractProxyIoHandler {
40      private final ServerToProxyIoHandler connectorHandler;
41  
42      private final IoConnector connector;
43  
44      private final InetSocketAddress address;
45  
46      public ClientToProxyIoHandler(ServerToProxyIoHandler connectorHandler,
47              IoConnector connector, InetSocketAddress address) {
48          this.connectorHandler = connectorHandler;
49          this.connector = connector;
50          this.address = address;
51      }
52  
53      public void sessionOpened(final IoSession session) throws Exception {
54          connector.connect(address, connectorHandler).addListener(
55                  new IoFutureListener() {
56                      public void operationComplete(IoFuture f) {
57                          ConnectFuture future = (ConnectFuture) f;
58                          try {
59                              future.getSession().setAttachment(session);
60                              session.setAttachment(future.getSession());
61                              future.getSession().setTrafficMask(TrafficMask.ALL);
62                          } catch (RuntimeIOException e) {
63                              // Connect failed
64                              session.close();
65                          } finally {
66                              session.setTrafficMask(TrafficMask.ALL);
67                          }
68                      }
69                  });
70      }
71  }