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.handler.multiton;
21
22 import org.apache.mina.common.IdleStatus;
23 import org.apache.mina.common.IoSession;
24 import org.apache.mina.util.SessionUtil;
25
26 /**
27 * Adapter class for implementors of the {@link SingleSessionIoHandler}
28 * interface. The session to which the handler is assigned is accessible
29 * through the {@link #getSession()} method.
30 *
31 * @author The Apache Directory Project (mina-dev@directory.apache.org)
32 * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007) $
33 */
34 public class SingleSessionIoHandlerAdapter implements SingleSessionIoHandler {
35
36 /**
37 * The session to which the handler is assigned.
38 */
39 private final IoSession session;
40
41 /**
42 * Creates a new instance that is assigned to the passed in session.
43 *
44 * @param session the session to which the handler is assigned
45 */
46 public SingleSessionIoHandlerAdapter(IoSession session) {
47 if (session == null) {
48 throw new NullPointerException("session");
49 }
50 this.session = session;
51 }
52
53 /**
54 * Retrieves the session to which this handler is assigned.
55 *
56 * @return the session
57 */
58 protected IoSession getSession() {
59 return session;
60 }
61
62 public void exceptionCaught(Throwable th) throws Exception {
63 }
64
65 public void messageReceived(Object message) throws Exception {
66 }
67
68 public void messageSent(Object message) throws Exception {
69 }
70
71 public void sessionClosed() throws Exception {
72 }
73
74 public void sessionCreated() throws Exception {
75 SessionUtil.initialize(getSession());
76 }
77
78 public void sessionIdle(IdleStatus status) throws Exception {
79 }
80
81 public void sessionOpened() throws Exception {
82 }
83 }