/*
* AbstractDeterminateInterruptibleTask.java
*
* Copyright (C) 2010 Leo Osvald <leo.osvald@gmail.com>
*
* This file is part of SGLJ.
*
* SGLJ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* SGLJ 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sglj.task;
import javax.swing.event.EventListenerList;
public abstract class AbstractDeterminateInterruptibleTask extends
AbstractDeterminateCancelableTask implements InterruptibleTask {
private final EventListenerList interruptListeners = new EventListenerList();
private TaskInterruptEvent event;
@Override
public void addInterruptibleTaskListener(InterruptibleTaskListener l) {
addCancelableTaskListener(l);
addTaskInterruptListener(l);
}
@Override
public void addTaskInterruptListener(TaskInterruptListener l) {
interruptListeners.add(TaskInterruptListener.class, l);
}
@Override
public void removeInterruptibleTaskListener(InterruptibleTaskListener l) {
removeCancelableTaskListener(l);
removeTaskInterruptListener(l);
}
@Override
public void removeTaskInterruptListener(TaskInterruptListener l) {
interruptListeners.remove(TaskInterruptListener.class, l);
}
protected void fireTaskInterrupted() {
Object[] listeners;
synchronized (interruptListeners) {
listeners = this.interruptListeners.getListenerList();
for (int i = listeners.length-2; i>=0; i-=2) {
if (listeners[i]==TaskInterruptListener.class) {
if (event == null)
event = new TaskInterruptEvent(this);
((TaskInterruptListener)listeners[i+1]).taskInterrupted(event);
}
}
}
}
}