/*
* Adito
*
* Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
*
* 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, 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 General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package com.adito.services;
import java.util.EventListener;
import javax.swing.event.EventListenerList;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.adito.core.CoreEvent;
import com.adito.core.CoreListener;
/**
*/
public class CoreEventServiceImpl implements CoreEventService {
private static final Log log = LogFactory.getLog(CoreEventServiceImpl.class);
private final EventListenerList coreListeners;
/**
*/
public CoreEventServiceImpl() {
coreListeners = new EventListenerList();
}
public void addCoreListener(CoreListener listener) {
coreListeners.add(CoreListener.class, listener);
}
public void removeCoreListener(CoreListener listener) {
coreListeners.remove(CoreListener.class, listener);
}
public void fireCoreEvent(CoreEvent evt) {
if (evt == null) {
return;
}
EventListener[] listeners = coreListeners.getListeners(CoreListener.class);
for (int index = listeners.length - 1; index >= 0; index--) {
// We don't want badly behaved listeners to throw uncaught
// exceptions and upset other listeners
try {
CoreListener coreListener = (CoreListener) listeners[index];
coreListener.coreEvent(evt);
} catch (Throwable thr) {
log.error("Event failed.", thr);
}
}
}
}