1 /*
2  * Created on 29-Apr-2004
3  * Created by Paul Gardner
4  * Copyright (C) Azureus Software, Inc, All Rights Reserved.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
17  *
18  */
19 
20 package org.gudy.azureus2.pluginsimpl.local.utils;
21 
22 /**
23  * @author parg
24  *
25  */
26 
27 import org.gudy.azureus2.plugins.*;
28 import org.gudy.azureus2.plugins.utils.*;
29 
30 import org.gudy.azureus2.core3.util.*;
31 
32 public class
33 UTTimerImpl
34 	implements UTTimer
35 {
36 	private PluginInterface		plugin_interface;
37 	private Timer				timer;
38 
39 	private boolean				destroyed;
40 
41 	public
UTTimerImpl( String name, boolean lightweight )42 	UTTimerImpl(
43 		String				name,
44 		boolean				lightweight )
45 	{
46 			// this constructor is for external (non-az) use, e.g. someone using the UPnP component
47 			// in their own app
48 
49 		if ( !lightweight ){
50 
51 			timer = new Timer( name );
52 		}
53 	}
54 
55 	protected
UTTimerImpl( PluginInterface pi, String name, boolean lightweight )56 	UTTimerImpl(
57 		PluginInterface		pi,
58 		String				name,
59 		boolean				lightweight )
60 	{
61 		plugin_interface	= pi;
62 
63 		if ( !lightweight ){
64 
65 			timer = new Timer( "Plugin " + pi.getPluginID() + ":" + name );
66 		}
67 	}
68 
69 	protected
UTTimerImpl( PluginInterface pi, String name, int priority )70 	UTTimerImpl(
71 		PluginInterface		pi,
72 		String				name,
73 		int priority )
74 	{
75 		plugin_interface	= pi;
76 
77 		timer = new Timer( "Plugin " + pi.getPluginID() + ":" + name, 1, priority );
78 	}
79 
80 	public UTTimerEvent
addEvent( long when, final UTTimerEventPerformer ext_performer )81 	addEvent(
82 		long						when,
83 		final UTTimerEventPerformer	ext_performer )
84 	{
85 		if ( destroyed ){
86 
87 			throw( new RuntimeException( "Timer has been destroyed" ));
88 		}
89 
90 		final timerEvent	res = new timerEvent();
91 
92 		TimerEventPerformer	performer =
93 			new TimerEventPerformer()
94 			{
95 				public void
96 				perform(
97 					TimerEvent		ev )
98 				{
99 					UtilitiesImpl.callWithPluginThreadContext(
100 							plugin_interface,
101 							new Runnable()
102 							{
103 								public void
104 								run()
105 								{
106 									res.perform( ext_performer );
107 								}
108 							});
109 				}
110 			};
111 
112 		if ( timer == null ){
113 
114 			res.setEvent( SimpleTimer.addEvent( "Plugin:" + ext_performer.getClass(), when, performer ));
115 
116 		}else{
117 
118 			res.setEvent( timer.addEvent( "Plugin:" + ext_performer.getClass(), when, performer ));
119 
120 		}
121 
122 		return( res );
123 	}
124 
125 	public UTTimerEvent
addPeriodicEvent( long periodic_millis, final UTTimerEventPerformer ext_performer )126 	addPeriodicEvent(
127 		long						periodic_millis,
128 		final UTTimerEventPerformer	ext_performer )
129 	{
130 		if ( destroyed ){
131 
132 			throw( new RuntimeException( "Timer has been destroyed" ));
133 		}
134 
135 		final timerEvent	res = new timerEvent();
136 
137 		TimerEventPerformer	performer =
138 			new TimerEventPerformer()
139 			{
140 				public void
141 				perform(
142 					TimerEvent		ev )
143 				{
144 					UtilitiesImpl.callWithPluginThreadContext(
145 							plugin_interface,
146 							new Runnable()
147 							{
148 								public void
149 								run()
150 								{
151 									try{
152 
153 										res.perform( ext_performer );
154 
155 									}catch( Throwable e ){
156 
157 										Debug.out("Plugin '" + plugin_interface.getPluginName() + " ("
158 											+ plugin_interface.getPluginID() + " "
159 											+ plugin_interface.getPluginVersion()
160 											+ ") caused an error while processing a timer event", e);
161 									}
162 								}
163 							});
164 				}
165 			};
166 
167 		if ( timer == null ){
168 
169 			res.setEvent( SimpleTimer.addPeriodicEvent( "Plugin:" + ext_performer.getClass(), periodic_millis, performer ));
170 
171 		}else{
172 
173 			res.setEvent( timer.addPeriodicEvent( "Plugin:" + ext_performer.getClass(), periodic_millis, performer ));
174 
175 		}
176 
177 		return( res );
178 	}
179 
180 	public void
destroy()181 	destroy()
182 	{
183 		destroyed	= true;
184 
185 		if ( timer != null ){
186 
187 			timer.destroy();
188 		}
189 	}
190 
191 	private static class
192 	timerEvent
193 		implements UTTimerEvent
194 	{
195 		protected TimerEvent				ev;
196 		protected TimerEventPeriodic		pev;
197 
198 		protected void
setEvent( TimerEventPeriodic _ev )199 		setEvent(
200 			TimerEventPeriodic	_ev )
201 		{
202 			pev		= _ev;
203 		}
204 
205 		protected void
setEvent( TimerEvent _ev )206 		setEvent(
207 			TimerEvent	_ev )
208 		{
209 			ev		= _ev;
210 		}
211 
212 		protected void
perform( UTTimerEventPerformer p )213 		perform(
214 			UTTimerEventPerformer	p )
215 		{
216 			p.perform( this );
217 		}
218 
219 		public void
cancel()220 		cancel()
221 		{
222 			if ( ev != null ){
223 
224 				ev.cancel();
225 
226 			}else{
227 
228 				pev.cancel();
229 			}
230 		}
231 	}
232 }
233