BroadcastEventProcessor.java

//
// This file is part of the OpenNMS(R) Application.
//
// OpenNMS(R) is Copyright (C) 2002-2003 The OpenNMS Group, Inc. All rights
// reserved.
// OpenNMS(R) is a derivative work, containing both original code, included
// code and modified
// code that was published under the GNU General Public License. Copyrights
// for modified
// and included code are below.
//
// OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
//
// Modifications:
//
// 2003 Jan 31: Cleaned up some unused imports.
//
// Original code base Copyright (C) 1999-2001 Oculan Corp. 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//       
// For more information contact:
// OpenNMS Licensing <license@opennms.org>
// http://www.opennms.org/
// http://www.opennms.com/
//

package org.infosec.ismp.syslogd;

import java.util.ArrayList;
import java.util.List;

import org.infosec.ismp.eventd.EventIpcManagerFactory;
import org.infosec.ismp.model.event.Event;
import org.infosec.ismp.model.event.EventConstants;
import org.infosec.ismp.model.event.EventListener;
import org.infosec.ismp.util.ThreadCategory;

final class BroadcastEventProcessor implements EventListener {
	/**
	 * Create message selector to set to the subscription
	 */
	BroadcastEventProcessor() {
		// Create the selector for the ueis this service is interested in
		//
		List<String> ueiList = new ArrayList<String>();

		// nodeGainedInterface
		ueiList.add(EventConstants.NODE_GAINED_INTERFACE_EVENT_UEI);

		// interfaceDeleted
		ueiList.add(EventConstants.INTERFACE_DELETED_EVENT_UEI);

		EventIpcManagerFactory.init();
		EventIpcManagerFactory.getIpcManager().addEventListener(this, ueiList);
	}

	/**
	 * Unsubscribe from eventd
	 */
	public void close() {
		EventIpcManagerFactory.getIpcManager().removeEventListener(this);
	}

	/**
	 * This method is invoked by the EventIpcManager when a new event is
	 * available for processing. Each message is examined for its Universal
	 * Event Identifier and the appropriate action is taking based on each
	 * UEI.
	 * 
	 * @param event
	 *            The event
	 */
	@Override
	public void onEvent(Event event) {
		ThreadCategory log = ThreadCategory.getInstance(getClass());

		String eventUei = event.getUei();
		if (eventUei == null)
			return;

		if (log.isDebugEnabled())
			log.debug("Received event: " + eventUei);

		if (eventUei.equals(EventConstants.NODE_GAINED_INTERFACE_EVENT_UEI)) {
			// // add to known nodes
			// if (Long.toString(event.getNodeid()) != null
			// && event.getInterface() != null) {
			// SyslogdIPMgr.setNodeId(event.getInterface(), event.getNodeid());
			// }
			// if (log.isDebugEnabled())
			// log.debug("Added " + event.getInterface()
			// + " to known node list");
		} else if (eventUei.equals(EventConstants.INTERFACE_DELETED_EVENT_UEI)) {

		} else if (eventUei
				.equals(EventConstants.INTERFACE_REPARENTED_EVENT_UEI)) {
			// add to known nodes
			// if (Long.toString(event.getNodeid()) != null
			// && event.getInterface() != null) {
			// SyslogdIPMgr.setNodeId(event.getInterface(), event.getNodeid());
			// }
			// if (log.isDebugEnabled())
			// log.debug("Reparented " + event.getInterface()
			// + " to known node list");
		}
	}

	/**
	 * Return an id for this event listener
	 */
	@Override
	public String getName() {
		return "Syslogd:BroadcastEventProcessor";
	}
}