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 test.implementation.notification.support;
23:
24: import java.util.ArrayList;
25: import java.util.HashMap;
26:
27: import javax.management.Notification;
28: import javax.management.NotificationListener;
29:
30: /**
31: * A listener
32: *
33: * @author <a href="mailto:Adrian.Brock@HappeningTimes.com">Adrian Brock</a>.
34: */
35: public class Listener implements NotificationListener {
36: // Attributes ----------------------------------------------------------------
37:
38: /**
39: * The notifications received by handback object
40: */
41: public HashMap notifications = new HashMap();
42:
43: public boolean waiting = false;
44:
45: // Constructor ---------------------------------------------------------------
46:
47: /**
48: * Constructor
49: */
50: public Listener() {
51: }
52:
53: // Notification Listener Implementation --------------------------------------
54:
55: /**
56: * Handle the notification
57: */
58: public void handleNotification(Notification notification,
59: Object handback) {
60: doWait(true);
61:
62: synchronized (notifications) {
63: ArrayList received = (ArrayList) notifications
64: .get(handback);
65: if (received == null) {
66: received = new ArrayList();
67: notifications.put(handback, received);
68: }
69: received.add(notification);
70: }
71:
72: doNotify(false);
73: }
74:
75: public synchronized void doWait(boolean value) {
76: try {
77: waiting = value;
78: this .wait();
79: } catch (InterruptedException e) {
80: throw new RuntimeException(e.toString());
81: }
82: }
83:
84: public synchronized void doNotify(boolean expected) {
85: try {
86: while (waiting != expected)
87: this .wait(10);
88: this .notifyAll();
89: } catch (InterruptedException e) {
90: throw new RuntimeException(e.toString());
91: }
92: }
93: }
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