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Java > Open Source Codes > jegg > impl > MessageHandlerA


1 /*
2  * Copyright (c) 2004, Bruce Lowery
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * - Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  * - Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * - Neither the name of JEGG nor the names of its contributors may be used
14  * to endorse or promote products derived from this software without
15  * specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27  * POSSIBILITY OF SUCH DAMAGE.
28  */
29 package jegg.impl;
30
31 import java.util.logging.Logger JavaDoc;
32
33 import jegg.EggBase;
34 import jegg.timer.Timeout;
35 import jegg.timer.Timer;
36
37 /**
38  *
39  */
40 public class MessageHandlerA extends EggBase
41 {
42     public static final Logger JavaDoc log = Logger.getLogger(MessageHandlerA.class.getName());
43     public Throwable JavaDoc error = null;
44     public String JavaDoc _name = null;
45     public Timer _timer = null;
46     
47     public MessageHandlerA(String JavaDoc s) throws Exception JavaDoc
48     {
49         _name = s + ":Port";
50     }
51  
52     public void handle(Init i)
53     {
54         _timer = getContext().createSingleShotTimer(2000);
55     }
56     
57     /**
58      * Fallback message handler.
59      */
60     public void handle(Object JavaDoc message)
61     {
62         System.err.println("EggClassA: got message ("+message.getClass().getName()+") - resending");
63         getContext().respond(message);
64     }
65     
66     public void handle(Timeout t)
67     {
68         log.info("EggClassA: publishing port");
69         getContext().publishPort(_name);
70         getContext().publishPort(_name);// duplicate
71 }
72     /**
73      * Handle a 'duplicate-name' exception from the port registry.
74      * @param e
75      */
76     public void handle(DuplicatePortException e)
77     {
78         System.err.println("EggClassA: got DuplicateNameException");
79         error = e;
80     }
81
82 }
83
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