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Java > Open Source Codes > org > apache > mina > example > tennis > TennisPlayer


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.tennis;
21
22 import org.apache.mina.common.IoHandler;
23 import org.apache.mina.common.IoHandlerAdapter;
24 import org.apache.mina.common.IoSession;
25
26 /**
27  * A {@link IoHandler} implementation which plays a tennis game.
28  *
29  * @author The Apache Directory Project (mina-dev@directory.apache.org)
30  * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (금, 13 7월 2007) $
31  */
32 public class TennisPlayer extends IoHandlerAdapter {
33     private static int nextId = 0;
34
35     /** Player ID **/
36     private final int id = nextId++;
37
38     public void sessionOpened(IoSession session) {
39         System.out.println("Player-" + id + ": READY");
40     }
41
42     public void sessionClosed(IoSession session) {
43         System.out.println("Player-" + id + ": QUIT");
44     }
45
46     public void messageReceived(IoSession session, Object JavaDoc message) {
47         System.out.println("Player-" + id + ": RCVD " + message);
48
49         TennisBall ball = (TennisBall) message;
50
51         // Stroke: TTL decreases and PING/PONG state changes.
52 ball = ball.stroke();
53
54         if (ball.getTTL() > 0) {
55             // If the ball is still alive, pass it back to peer.
56 session.write(ball);
57         } else {
58             // If the ball is dead, this player loses.
59 System.out.println("Player-" + id + ": LOSE");
60             session.close();
61         }
62     }
63
64     public void messageSent(IoSession session, Object JavaDoc message) {
65         System.out.println("Player-" + id + ": SENT " + message);
66     }
67
68     public void exceptionCaught(IoSession session, Throwable JavaDoc cause) {
69         cause.printStackTrace();
70         session.close();
71     }
72 }
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