/*
* File : TimerEventPeriodic.java
* Created : 07-Dec-2003
* By : parg
*
* Azureus - a Java Bittorrent client
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details ( see the LICENSE file ).
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.gudy.azureus2.core3.util;
/**
* @author parg
*
*/
public class
TimerEventPeriodic
implements TimerEventPerformer
{
private Timer timer;
private long frequency;
private boolean absolute;
private TimerEventPerformer performer;
private String name;
private TimerEvent current_event;
private boolean cancelled;
protected
TimerEventPeriodic(
Timer _timer,
long _frequency,
boolean _absolute,
TimerEventPerformer _performer )
{
timer = _timer;
frequency = _frequency;
absolute = _absolute;
performer = _performer;
long now = SystemTime.getCurrentTime();
current_event = timer.addEvent( name, now, now + frequency, absolute, this );
}
public void
setName(
String _name )
{
name = _name;
synchronized( this ){
if ( current_event != null ){
current_event.setName( name );
}
}
}
public String
getName()
{
return( name );
}
protected TimerEventPerformer
getPerformer()
{
return( performer );
}
public long
getFrequency()
{
return( frequency );
}
public boolean
isCancelled()
{
return( cancelled );
}
public void
perform(
TimerEvent event )
{
if ( !cancelled ){
try{
performer.perform( event );
}catch( Throwable e ){
DebugLight.printStackTrace( e );
}
synchronized( this ){
if ( !cancelled ){
long now = SystemTime.getCurrentTime();
current_event = timer.addEvent(name, now, now + frequency, absolute, this );
}
}
}
}
public synchronized void
cancel()
{
if ( current_event != null ){
current_event.cancel();
cancelled = true;
}
}
protected String
getString()
{
TimerEvent ce = current_event;
String ev_data;
if ( ce == null ){
ev_data = "?";
}else{
ev_data = "when=" + ce.getWhen() + ",run=" + ce.hasRun() + ", can=" + ce.isCancelled();
}
return( ev_data + ",freq=" + getFrequency() + ",target=" + getPerformer() + (name==null?"":(",name=" + name )));
}
}