Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
EventTimerTask |
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| 1.4545454545454546;1.455 |
1 | /* | |
2 | * $Id: EventTimerTask.java 19191 2010-08-25 21:05:23Z tcarlson $ | |
3 | * -------------------------------------------------------------------------------------- | |
4 | * Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.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.util.timer; | |
12 | ||
13 | import java.util.ArrayList; | |
14 | import java.util.List; | |
15 | import java.util.TimerTask; | |
16 | ||
17 | /** | |
18 | * <code>EventTimerTask</code> is a task that causes TimeEvent to be fired to | |
19 | * listening objects when a specific number of milliseconds have passed. This | |
20 | * implementation is based on the java.util.TimerTask. | |
21 | */ | |
22 | public class EventTimerTask extends TimerTask | |
23 | { | |
24 | /** | |
25 | * A list of listeners on this task | |
26 | */ | |
27 | 0 | private List listeners = null; |
28 | ||
29 | /** | |
30 | * The name of the task | |
31 | */ | |
32 | 0 | private String name = null; |
33 | ||
34 | /** | |
35 | * Determines if the task has been started | |
36 | */ | |
37 | 0 | private boolean started = true; |
38 | ||
39 | /** | |
40 | * Constructs a EventTimeTask and registers a listener with it | |
41 | * | |
42 | * @param listener the listener to register | |
43 | */ | |
44 | public EventTimerTask(TimeEventListener listener) | |
45 | { | |
46 | 0 | super(); |
47 | 0 | addListener(listener); |
48 | 0 | this.name = "EventTimerTask." + hashCode(); |
49 | 0 | } |
50 | ||
51 | /** | |
52 | * Constructs a EventTimeTask and registers a listener with it | |
53 | * | |
54 | * @param listener the listener to register | |
55 | * @param name the name for the task | |
56 | */ | |
57 | public EventTimerTask(TimeEventListener listener, String name) | |
58 | { | |
59 | 0 | super(); |
60 | 0 | addListener(listener); |
61 | 0 | this.name = name; |
62 | 0 | } |
63 | ||
64 | /** | |
65 | * The action to be performed by this timer task. The fireTime event method is | |
66 | * called. | |
67 | */ | |
68 | public void run() | |
69 | { | |
70 | ||
71 | 0 | TimeEvent event = new TimeEvent(this, getName(), scheduledExecutionTime()); |
72 | 0 | fireTimerEvent(event); |
73 | 0 | } |
74 | ||
75 | /** | |
76 | * Gets the task name (this is also the timer thread name) | |
77 | * | |
78 | * @return the task name | |
79 | */ | |
80 | public String getName() | |
81 | { | |
82 | 0 | return name; |
83 | } | |
84 | ||
85 | public void removeListener(TimeEventListener listener) | |
86 | { | |
87 | 0 | if (listeners != null && listeners.contains(listener)) |
88 | { | |
89 | 0 | listeners.remove(listener); |
90 | } | |
91 | 0 | } |
92 | ||
93 | public void removeAllListeners() | |
94 | { | |
95 | 0 | listeners = new ArrayList(); |
96 | 0 | } |
97 | ||
98 | public void addListener(TimeEventListener listener) | |
99 | { | |
100 | 0 | if (listeners == null) |
101 | { | |
102 | 0 | listeners = new ArrayList(); |
103 | 0 | listeners.add(listener); |
104 | } | |
105 | 0 | else if (!listeners.contains(listener)) |
106 | { | |
107 | 0 | listeners.add(listener); |
108 | } | |
109 | 0 | } |
110 | ||
111 | protected void fireTimerEvent(TimeEvent event) | |
112 | { | |
113 | 0 | if (listeners != null && started) |
114 | { | |
115 | 0 | int count = listeners.size(); |
116 | 0 | for (int i = 0; i < count; i++) |
117 | { | |
118 | 0 | ((TimeEventListener) listeners.get(i)).timeExpired(event); |
119 | } | |
120 | } | |
121 | 0 | } |
122 | ||
123 | public void stop() | |
124 | { | |
125 | 0 | started = false; |
126 | 0 | } |
127 | ||
128 | public void start() | |
129 | { | |
130 | 0 | started = true; |
131 | 0 | } |
132 | ||
133 | public boolean isStarted() | |
134 | { | |
135 | 0 | return started; |
136 | } | |
137 | } |