01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.messaging.channel.plugins.handler;
23:
24: import java.util.ArrayList;
25:
26: import org.jboss.messaging.interfaces.*;
27: import org.jboss.messaging.interfaces.Consumer;
28: import org.jboss.messaging.interfaces.MessageReference;
29:
30: /**
31: * A channel handler that has multiple consumers
32: *
33: * @author <a href="mailto:adrian@jboss.org">Adrian Brock</a>
34: * @version $Revision: 57195 $
35: */
36: public class SharedChannelHandler extends AbstractChannelHandler {
37: // Constants -----------------------------------------------------
38:
39: // Attributes ----------------------------------------------------
40:
41: /** The waiting consumers */
42: private ArrayList consumers = new ArrayList();
43:
44: // Static --------------------------------------------------------
45:
46: // Constructors --------------------------------------------------
47:
48: /**
49: * Create a new SharedChannelHandler.
50: *
51: * @param messages the message set
52: */
53: public SharedChannelHandler(MessageSet messages) {
54: super (messages);
55: }
56:
57: // Public --------------------------------------------------------
58:
59: // AbstractChannelHandler overrides ------------------------------
60:
61: protected void addConsumer(Consumer consumer, long wait) {
62: consumers.add(consumer);
63: }
64:
65: protected Consumer findConsumer(MessageReference reference) {
66: for (int i = 0; i < consumers.size(); ++i) {
67: Consumer consumer = (Consumer) consumers.get(i);
68: if (consumer.accepts(reference, true)) {
69: consumers.remove(i);
70: return consumer;
71: }
72: }
73: return null;
74: }
75:
76: protected void removeConsumer(Consumer consumer) {
77: consumers.remove(consumer);
78: }
79:
80: // Protected -----------------------------------------------------
81:
82: // Package Private -----------------------------------------------
83:
84: // Private -------------------------------------------------------
85:
86: // Inner Classes -------------------------------------------------
87: }
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