DiscoveryPingResponseCallback.java

/*
 * This file is part of the OpenNMS(R) Application.
 *
 * OpenNMS(R) is Copyright (C) 2007 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:
 * 
 * Created August 29, 2007
 *
 * Copyright (C) 2007 The OpenNMS Group, Inc.  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.discovery;

import java.net.InetAddress;
import java.net.UnknownHostException;

import org.infosec.ismp.eventd.EventIpcManagerFactory;
import org.infosec.ismp.model.event.EventBuilder;
import org.infosec.ismp.model.event.EventConstants;
import org.infosec.ismp.ping.PingResponseCallback;
import org.infosec.ismp.util.ThreadCategory;
import org.opennms.protocols.icmp.ICMPEchoPacket;

public class DiscoveryPingResponseCallback implements PingResponseCallback {
	final static String EVENT_SOURCE_VALUE = "OpenNMS.Discovery";

	@Override
	public void handleResponse(InetAddress address, ICMPEchoPacket packet) {
		EventBuilder eb = new EventBuilder(
				EventConstants.NEW_SUSPECT_INTERFACE_EVENT_UEI,
				EVENT_SOURCE_VALUE);
		eb.setInterface(address.getHostAddress());

		try {
			eb.setHost(InetAddress.getLocalHost().getHostName());
		} catch (UnknownHostException uhE) {
			eb.setHost("unresolved.host");
			log().warn("Failed to resolve local hostname", uhE);
		}

		eb.addParam("RTT", packet.getReceivedTime() - packet.getSentTime());

		try {
			EventIpcManagerFactory.getIpcManager().sendNow(eb.getEvent());

			if (log().isDebugEnabled()) {
				log().debug(
						"Sent event: "
								+ EventConstants.NEW_SUSPECT_INTERFACE_EVENT_UEI);
			}
		} catch (Throwable t) {
			log().warn(
					"run: unexpected throwable exception caught during send to middleware",
					t);
		}

	}

	@Override
	public void handleTimeout(InetAddress address, ICMPEchoPacket packet) {
		log().debug("request timed out: " + address);
	}

	@Override
	public void handleError(InetAddress address, ICMPEchoPacket packet,
			Throwable t) {
		log().debug("an error occurred pinging " + address, t);
	}

	private ThreadCategory log() {
		return ThreadCategory.getInstance(this.getClass());
	}

}