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1 package rero.ircfw;
2
3 import rero.ircfw.interfaces.FrameworkConstants;
4 import rero.ircfw.interfaces.ChatListener;
5
6 import java.util.HashMap  ;
7 import java.util.List ;
8 import java.util.LinkedList ;
9 import java.util.ListIterator ;
10
11 public class ProtocolDispatcher implements FrameworkConstants
12 {
13 protected LinkedList temporary = new LinkedList ();
14 protected LinkedList permanent = new LinkedList ();
15
16 protected ChatListener internal = null;
17
18 public void dispatchEvent(HashMap eventDescription)
19 {
20 String eventId = (String )eventDescription.get($EVENT$);
21
22 int rv = ChatListener.EVENT_DONE;
23
24 if (internal != null && internal.isChatEvent(eventId, eventDescription))
25 {
26 rv = internal.fireChatEvent(eventDescription);
27 }
28
29 if (rv == ChatListener.EVENT_DONE)
30 {
31 rv = easyDispatch(temporary, eventId, eventDescription);
32 }
33
34 if (rv == ChatListener.EVENT_DONE)
35 {
36 rv = easyDispatch(permanent, eventId, eventDescription);
37 }
38 }
39
40 private int easyDispatch(List listeners, String eventId, HashMap eventDescription)
41 {
42 ChatListener l;
43
44 ListIterator iter = listeners.listIterator();
45 while (iter.hasNext())
46 {
47 l = (ChatListener)iter.next();
48
49 if (l.isChatEvent(eventId, eventDescription))
50 {
51 int rv = l.fireChatEvent(eventDescription);
52
53 if ((rv & (ChatListener.REMOVE_LISTENER)) == ChatListener.REMOVE_LISTENER)
54 {
55 iter.remove();
56 }
57
58 if ((rv & (ChatListener.EVENT_HALT)) == ChatListener.EVENT_HALT)
59 {
60 return ChatListener.EVENT_HALT;
61 }
62 }
63 }
64
65 return ChatListener.EVENT_DONE;
66 }
67
68 public void addTemporaryListener(ChatListener l)
69 {
70 temporary.addFirst(l);
71 }
72
73 public void addChatListener(ChatListener l)
74 {
75 permanent.addFirst(l);
76 }
77
78 public void setInternalListener(ChatListener l)
79 {
80 internal = l;
81 }
82 }
83
84
85 |
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