/*******************************************************************************
* This file is part of OpenNMS(R).
*
* Copyright (C) 2006-2011 The OpenNMS Group, Inc.
* OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
*
* OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
*
* OpenNMS(R) 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 3 of the License,
* or (at your option) any later version.
*
* OpenNMS(R) 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 OpenNMS(R). If not, see:
* http://www.gnu.org/licenses/
*
* For more information contact:
* OpenNMS(R) Licensing <license@opennms.org>
* http://www.opennms.org/
* http://www.opennms.com/
*******************************************************************************/
package org.opennms.netmgt.poller.monitors;
import java.io.IOException;
import java.net.InetAddress;
import java.util.Map;
import org.opennms.core.utils.ParameterMap;
import org.opennms.core.utils.ThreadCategory;
import org.opennms.netmgt.icmp.PingConstants;
import org.opennms.netmgt.icmp.PingerFactory;
import org.opennms.netmgt.model.PollStatus;
import org.opennms.netmgt.poller.Distributable;
import org.opennms.netmgt.poller.MonitoredService;
import org.opennms.netmgt.poller.NetworkInterface;
import org.opennms.netmgt.poller.NetworkInterfaceNotSupportedException;
/**
* <P>
* This class is designed to be used by the service poller framework to test the
* availability of the ICMP service on remote interfaces. The class implements
* the ServiceMonitor interface that allows it to be used along with other
* plug-ins by the service poller framework.
* </P>
*
* @author <A HREF="mailto:tarus@opennms.org">Tarus Balog</A>
* @author <A HREF="http://www.opennms.org/">OpenNMS</A>
*/
@Distributable
final public class IcmpMonitor extends AbstractServiceMonitor {
/**
* Constructs a new monitor.
*
* @throws java.io.IOException if any.
*/
public IcmpMonitor() throws IOException {
}
/**
* {@inheritDoc}
*
* <P>
* Poll the specified address for ICMP service availability.
* </P>
*
* <P>
* The ICMP service monitor relies on Discovery for the actual generation of
* IMCP 'ping' requests. A JSDT session with two channels (send/recv) is
* utilized for passing poll requests and receiving poll replies from
* discovery. All exchanges are SOAP/XML compliant.
* </P>
*/
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
NetworkInterface<InetAddress> iface = svc.getNetInterface();
// Get interface address from NetworkInterface
//
if (iface.getType() != NetworkInterface.TYPE_INET)
throw new NetworkInterfaceNotSupportedException("Unsupported interface type, only TYPE_INET currently supported");
ThreadCategory log = ThreadCategory.getInstance(this.getClass());
Number rtt = null;
InetAddress host = (InetAddress) iface.getAddress();
try {
// get parameters
//
int retries = ParameterMap.getKeyedInteger(parameters, "retry", PingConstants.DEFAULT_RETRIES);
long timeout = ParameterMap.getKeyedLong(parameters, "timeout", PingConstants.DEFAULT_TIMEOUT);
int packetSize = ParameterMap.getKeyedInteger(parameters, "packet-size", PingConstants.DEFAULT_PACKET_SIZE);
rtt = PingerFactory.getInstance().ping(host, timeout, retries,packetSize);
} catch (Throwable e) {
log.debug("failed to ping " + host, e);
}
if (rtt != null) {
return PollStatus.available(rtt.doubleValue());
} else {
// TODO add a reason code for unavailability
return PollStatus.unavailable();
}
}
}