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Java > Open Source Codes > org > mr > kernel > IncomingMessageListenerRegister


1 /*
2  * Copyright 2002 by
3  * <a HREF="http://www.coridan.com">Coridan</a>
4  * <a HREF="mailto: support@coridan.com ">support@coridan.com</a>
5  *
6  * The contents of this file are subject to the Mozilla Public License Version
7  * 1.1 (the "License"); you may not use this file except in compliance with the
8  * License. You may obtain a copy of the License at
9  * http://www.mozilla.org/MPL/
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11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the
14  * License.
15  *
16  * The Original Code is "MantaRay" (TM).
17  *
18  * The Initial Developer of the Original Code is Amir Shevat .
19  * Portions created by the Initial Developer are Copyright (C) 2006
20  * Coridan Inc. All Rights Reserved.
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22  * Contributor(s): all the names of the contributors are added in the source
23  * code where applicable.
24  *
25  * Alternatively, the contents of this file may be used under the terms of the
26  * LGPL license (the "GNU LESSER GENERAL PUBLIC LICENSE"), in which case the
27  * provisions of LGPL are applicable instead of those above. If you wish to
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29  * License and not to allow others to use your version of this file under
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32  * If you do not delete the provisions above, a recipient may use your version
33  * of this file under either the MPL or the GNU LESSER GENERAL PUBLIC LICENSE.
34  
35  *
36  * This library is free software; you can redistribute it and/or modify it
37  * under the terms of the MPL as stated above or under the terms of the GNU
38  * Lesser General Public License as published by the Free Software Foundation;
39  * either version 2.1 of the License, or any later version.
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41  * This library is distributed in the hope that it will be useful, but WITHOUT
42  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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46 /*
47  * Created on Dec 17, 2003
48  *
49  */

50 package org.mr.kernel;
51
52 import org.apache.commons.logging.Log;
53 import org.apache.commons.logging.LogFactory;
54 import org.mr.core.protocol.MantaBusMessage;
55 import org.mr.core.protocol.MantaBusMessageConsts;
56
57 /**
58  * IncomingMessageListenerRegister register to different kinds of messages (e.g. CMC/Client/Control messages ) here
59  * only one listener per type
60  * @author Amir Shevat
61  * @see CMCManager
62  * @see MantaBusMessage
63  *
64  */

65 public class IncomingMessageListenerRegister {
66     static IncomingMessageListener clientRouter = null;
67     static IncomingMessageListener controlRouter = null;
68     static Log log = LogFactory.getLog("IncomingMessageListenerRegister");
69     
70     
71     
72     /**
73      * internal protocol layer method this method is called when the listeners are needed to be notified
74      * @param msg the incomming message
75      */

76     public static void notifyListeners(MantaBusMessage msg){
77         IncomingMessageListener listener = null;
78         if(msg.getMessageType() == MantaBusMessageConsts.MESSAGE_TYPE_CLIENT){
79             listener = clientRouter;
80         }else if(msg.getMessageType() == MantaBusMessageConsts.MESSAGE_TYPE_CONTROL){
81             listener = controlRouter;
82         }
83             
84         if(listener != null){
85             listener.messageArrived(msg);
86         }else{
87             if(log.isErrorEnabled()){
88                 log.error("No MantaBusMessageListener to message: "+msg.getMessageId());
89             }
90         }
91         
92     }//notifyListeners
93

94     public static IncomingMessageListener getClientRouter() {
95         return clientRouter;
96     }
97     public static void setClientRouter(IncomingMessageListener clientRouter) {
98         IncomingMessageListenerRegister.clientRouter = clientRouter;
99     }
100     public static IncomingMessageListener getControlRouter() {
101         return controlRouter;
102     }
103     public static void setControlRouter(
104             IncomingMessageListener controlRouter) {
105         IncomingMessageListenerRegister.controlRouter = controlRouter;
106     }
107 }//IncomingMessageListenerRegister
108
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