01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one
03: * or more contributor license agreements. See the NOTICE file
04: * distributed with this work for additional information
05: * regarding copyright ownership. The ASF licenses this file
06: * to you under the Apache License, Version 2.0 (the
07: * "License"); you may not use this file except in compliance
08: * with the License. You may obtain a copy of the License at
09: *
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 MINA Project (dev@mina.apache.org)
30: * @version $Rev: 576217 $, $Date: 2007-09-16 17:55:27 -0600 (Sun, 16 Sep 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: @Override
39: public void sessionOpened(IoSession session) {
40: System.out.println("Player-" + id + ": READY");
41: }
42:
43: @Override
44: public void sessionClosed(IoSession session) {
45: System.out.println("Player-" + id + ": QUIT");
46: }
47:
48: @Override
49: public void messageReceived(IoSession session, Object message) {
50: System.out.println("Player-" + id + ": RCVD " + message);
51:
52: TennisBall ball = (TennisBall) message;
53:
54: // Stroke: TTL decreases and PING/PONG state changes.
55: ball = ball.stroke();
56:
57: if (ball.getTTL() > 0) {
58: // If the ball is still alive, pass it back to peer.
59: session.write(ball);
60: } else {
61: // If the ball is dead, this player loses.
62: System.out.println("Player-" + id + ": LOSE");
63: session.close();
64: }
65: }
66:
67: @Override
68: public void messageSent(IoSession session, Object message) {
69: System.out.println("Player-" + id + ": SENT " + message);
70: }
71:
72: @Override
73: public void exceptionCaught(IoSession session, Throwable cause) {
74: cause.printStackTrace();
75: session.close();
76: }
77: }
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