ClusterInfoEvent.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
*/
package org.olat.commons.coordinate.cluster.jms;

import org.olat.core.util.cluster.ClusterConfig;
import org.olat.core.util.event.MultiUserEvent;
import org.olat.core.util.event.businfo.BusListenerInfo;

/**
 * Description:
 * This is an event which is regularly (every other second or so) broadcasted between
 * all olat cluster nodes. it contains the configuration of the cluster that sends it, 
 * and also the count statistics for each olatresourceable channel.
 * 
 * @author felix jost
 *
 */
public class ClusterInfoEvent extends MultiUserEvent {
	private static final long serialVersionUID = -9192084397019081820L;
	private long created;
	private ClusterConfig config;
	private final BusListenerInfo busListenerInfo;
	
	ClusterInfoEvent(ClusterConfig config, BusListenerInfo busListenerInfo) {
		super("clusterinfo");
		this.config = config;
		this.busListenerInfo = busListenerInfo;
		created = System.currentTimeMillis();
	}

	/**
	 * @return the timestamp (System.currentTimeMillis) when this message had been created
	 */
	long getCreated() {
		return created;
	}

	/**
	 * 
	 * @return the configuration of node that sent the event
	 */
	ClusterConfig getConfig() {
		return config;
	}

	/**
	 * 
	 * @return the buslistener information (olatresourceable channel counts)
	 */
	public BusListenerInfo getBusListenerInfo() {
		return busListenerInfo;
	}
	
	
}