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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.proxy.session;
21  
22  import org.apache.mina.core.future.ConnectFuture;
23  import org.apache.mina.core.session.IoSession;
24  import org.apache.mina.core.session.IoSessionInitializer;
25  
26  /**
27   * ProxyIoSessionInitializer.java - {@link IoSessionInitializer} wrapper class to inject the 
28   * {@link ProxyIoSession} object that contains all the attributes of the target connection 
29   * into the {@link IoSession}.
30   *
31   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
32   * @since MINA 2.0.0-M3
33   */
34  public class ProxyIoSessionInitializer<T extends ConnectFuture> implements IoSessionInitializer<T> {
35      private final IoSessionInitializer<T> wrappedSessionInitializer;
36  
37      private final ProxyIoSession proxyIoSession;
38  
39      public ProxyIoSessionInitializer(final IoSessionInitializer<T> wrappedSessionInitializer,
40              final ProxyIoSession proxyIoSession) {
41          this.wrappedSessionInitializer = wrappedSessionInitializer;
42          this.proxyIoSession = proxyIoSession;
43      }
44  
45      public ProxyIoSession getProxySession() {
46          return proxyIoSession;
47      }
48  
49      public void initializeSession(final IoSession session, T future) {
50          if (wrappedSessionInitializer != null) {
51              wrappedSessionInitializer.initializeSession(session, future);
52          }
53  
54          if (proxyIoSession != null) {
55              proxyIoSession.setSession(session);
56              session.setAttribute(ProxyIoSession.PROXY_SESSION, proxyIoSession);
57          }
58      }
59  }