Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
OptimisedNotificationHandler |
|
| 1.75;1.75 |
1 | /* | |
2 | * $Id: OptimisedNotificationHandler.java 10489 2008-01-23 17:53:38Z dfeist $ | |
3 | * -------------------------------------------------------------------------------------- | |
4 | * Copyright (c) MuleSource, Inc. All rights reserved. http://www.mulesource.com | |
5 | * | |
6 | * The software in this package is published under the terms of the CPAL v1.0 | |
7 | * license, a copy of which has been included with this distribution in the | |
8 | * LICENSE.txt file. | |
9 | */ | |
10 | ||
11 | package org.mule.context.notification; | |
12 | ||
13 | import org.mule.api.context.notification.ServerNotification; | |
14 | import org.mule.api.context.notification.ServerNotificationHandler; | |
15 | ||
16 | /** | |
17 | * Optimized to make a quick decision on a particular class of messages. | |
18 | */ | |
19 | public class OptimisedNotificationHandler implements ServerNotificationHandler | |
20 | { | |
21 | ||
22 | private ServerNotificationHandler delegate; | |
23 | private Class type; | |
24 | 530 | private boolean dynamic = false; |
25 | 530 | private boolean enabled = false; |
26 | ||
27 | public OptimisedNotificationHandler(ServerNotificationHandler delegate, Class type) | |
28 | 530 | { |
29 | 530 | this.delegate = delegate; |
30 | 530 | this.type = type; |
31 | 530 | dynamic = delegate.isNotificationDynamic(); |
32 | 530 | enabled = delegate.isNotificationEnabled(type); |
33 | 530 | } |
34 | ||
35 | public boolean isNotificationDynamic() | |
36 | { | |
37 | 0 | return dynamic; |
38 | } | |
39 | ||
40 | /** | |
41 | * This returns a very "conservative" value - it is true if the notification or any subclass would be | |
42 | * accepted. So if it returns false then you can be sure that there is no need to send the | |
43 | * notification. On the other hand, if it returns true there is no guarantee that the notification | |
44 | * "really" will be dispatched to any listener. | |
45 | * | |
46 | * @param notfnClass Either the notification class being generated or some superclass | |
47 | * @return false if there is no need to dispatch the notification | |
48 | */ | |
49 | public boolean isNotificationEnabled(Class notfnClass) | |
50 | { | |
51 | 44 | if ((!dynamic) && type.isAssignableFrom(notfnClass)) |
52 | { | |
53 | 12 | return enabled; |
54 | } | |
55 | else | |
56 | { | |
57 | 32 | return delegate.isNotificationEnabled(notfnClass); |
58 | } | |
59 | } | |
60 | ||
61 | public void fireNotification(ServerNotification notification) | |
62 | { | |
63 | 28 | if (isNotificationEnabled(notification.getClass())) |
64 | { | |
65 | 0 | delegate.fireNotification(notification); |
66 | } | |
67 | 28 | } |
68 | ||
69 | } |