/**
* Copyright (c) 2010-2016 by the respective copyright holders.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.openhab.binding.satel.internal.event;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Allows distributing incoming event to all registered listeners. Listeners
* must implement {@link SatelEventListener} interface.
*
* @author Krzysztof Goworek
* @since 1.7.0
*/
public class EventDispatcher {
private static final Logger logger = LoggerFactory.getLogger(EventDispatcher.class);
private final Set<SatelEventListener> eventListeners = new CopyOnWriteArraySet<SatelEventListener>();
/**
* Add a listener for Satel events.
*
* @param eventListener
* the event listener to add.
*/
public void addEventListener(SatelEventListener eventListener) {
this.eventListeners.add(eventListener);
}
/**
* Remove a listener for Satel events.
*
* @param eventListener
* the event listener to remove.
*/
public void removeEventListener(SatelEventListener eventListener) {
this.eventListeners.remove(eventListener);
}
/**
* Dispatch incoming event to all listeners.
*
* @param event
* the event to distribute.
*/
public void dispatchEvent(SatelEvent event) {
logger.debug("Distributing event: {}", event);
for (SatelEventListener listener : eventListeners) {
logger.trace("Distributing to {}", listener);
listener.incomingEvent(event);
}
}
}