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1   /*
2   * The contents of this file are subject to the BT "ZEUS" Open Source 
3   * Licence (L77741), Version 1.0 (the "Licence"); you may not use this file 
4   * except in compliance with the Licence. You may obtain a copy of the Licence
5   * from $ZEUS_INSTALL/licence.html or alternatively from
6   * http://www.labs.bt.com/projects/agents/zeus/licence.htm
7   * 
8   * Except as stated in Clause 7 of the Licence, software distributed under the
9   * Licence is distributed WITHOUT WARRANTY OF ANY KIND, either express or 
10  * implied. See the Licence for the specific language governing rights and 
11  * limitations under the Licence.
12  * 
13  * The Original Code is within the package zeus.*.
14  * The Initial Developer of the Original Code is British Telecommunications
15  * public limited company, whose registered office is at 81 Newgate Street, 
16  * London, EC1A 7AJ, England. Portions created by British Telecommunications 
17  * public limited company are Copyright 1996-9. All Rights Reserved.
18  * 
19  * THIS NOTICE MUST BE INCLUDED ON ANY COPY OF THIS FILE
20  */
21  
22  
23  
24  package zeus.agentviewer.msghandler;
25  
26  import javax.swing.table.*;
27  import java.util.*;
28  import zeus.concepts.Performative;
29  import zeus.actors.event.*;
30  import zeus.actors.*;
31  
32  
33  public class MsgHandlerTableModel extends AbstractTableModel
34                                    implements MessageHandlerMonitor {
35  
36        static final int SENDER = 0;
37        static final int TYPE   = 1;
38        static final int OBJECT = 2;
39        static final int METHOD = 3;
40  
41         protected int messageCount = 0; 
42        
43        private int BUFFER_CAPACITY = 50;
44        private int REMOVE_INDEX = 0;
45  
46        private String[] header = { "Sender", "Type", "Object", "Method" };
47        private Vector   data;
48        private AgentContext context;
49  
50  
51        public MsgHandlerTableModel(AgentContext context){
52            this.context = context;
53            data = new Vector();
54            context.MsgHandler().addMessageHandlerMonitor(this,MessageHandlerEvent.FIRE_MASK);
55        }
56  
57        
58        /*** 
59          *return the number of messages that you have processed 
60          *@author Simon Thompson
61          *@since 1.3
62          */ 
63        public int getNumberMessages() { 
64              return (messageCount);
65        }
66              
67        
68        public int getRowCount() { return data.size(); }
69  //---------------------------------------------------------------------------
70         public int getColumnCount() { return header.length; }
71  //---------------------------------------------------------------------------
72         public Object getValueAt(int row, int col) {
73             MessageHandlerEvent evt = (MessageHandlerEvent) data.elementAt(row);
74             switch(col) {
75                case SENDER:
76                     return evt.getSender();
77  
78                case TYPE:
79                     return evt.getMessageType();
80  
81  	      case OBJECT:
82                     return evt.getDestination();
83  
84                case METHOD:
85                     return evt.getMethod();
86             }
87             return null;
88         }
89  //---------------------------------------------------------------------------
90         Performative getMessage(int row){
91            return ((MessageHandlerEvent)data.elementAt(row)).getMessage();
92         }
93         public String getColumnName(int col) { return  header[col]; }
94  
95         public void messageRuleFailedEvent(MessageHandlerEvent event)  {}
96         public void messageRuleAddedEvent(MessageHandlerEvent event)   {}
97         public void messageRuleDeletedEvent(MessageHandlerEvent event) {}
98  
99         public void messageRuleFiredEvent(MessageHandlerEvent event) {
100            if ( data.contains(event) )
101              return;
102 
103            if (data.size() > BUFFER_CAPACITY )
104               data.removeElementAt(REMOVE_INDEX);
105            data.addElement(event);
106            messageCount++; 
107            fireTableDataChanged();
108        }
109 //---------------------------------------------------------------------------
110        public void removeZeusEventMonitors(){
111           context.MsgHandler().removeMessageHandlerMonitor(this,MessageHandlerEvent.FIRE_MASK);
112        }
113 }