/***************************************************************************
* Copyright (C) 2009 by Fabrizio Montesi <famontesi@gmail.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Library General Public License as *
* published by the Free Software Foundation; either version 2 of the *
* License, or (at your option) any later version. *
* *
* 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. *
* *
* You should have received a copy of the GNU Library 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. *
* *
* For details about the authors of this software, see the AUTHORS file. *
***************************************************************************/
package jolie.runtime;
import java.lang.ref.WeakReference;
/**
* @author Fabrizio Montesi
*/
public abstract class TimeoutHandler
{
private final long time;
public TimeoutHandler( long timeout )
{
this.time = System.currentTimeMillis() + timeout;
}
public long time()
{
return time;
}
public abstract void onTimeout();
/**
* Note: this comparator imposes orderings that are inconsistent with equals.
*/
public static class Comparator implements java.util.Comparator< WeakReference< TimeoutHandler > >
{
public int compare( WeakReference< TimeoutHandler > wt1, WeakReference< TimeoutHandler > wt2 )
{
TimeoutHandler t1 = wt1.get();
TimeoutHandler t2 = wt2.get();
if ( t1 == null ) {
return -1;
} else if ( t2 == null ) {
return 1;
}
// Both are not null after this
if ( t1.time < t2.time ) {
return -1;
} else if ( t1.time == t2.time ) {
return 0;
} else {
return 1;
}
}
}
}