Package org.opennms.netmgt.poller.monitors

Class CiscoPingMibMonitor

java.lang.Object

org.opennms.netmgt.poller.support.AbstractServiceMonitor

org.opennms.netmgt.poller.monitors.SnmpMonitorStrategy

org.opennms.netmgt.poller.monitors.CiscoPingMibMonitor

All Implemented Interfaces:

ServiceMonitor

public class CiscoPingMibMonitor
extends SnmpMonitorStrategy

This class is designed to be used by the service poller framework to test the availability of the ICMP service on remote interfaces, using the CISCO-PING-MIB as a proxy of sorts. The class implements the ServiceMonitor interface that allows it to be used along with other plug-ins by the service poller framework. Derived from the SnmpMonitor class. See that class' docs for authorship history.

Author:

Jeff Gehlbach, OpenNMS

Field Summary

Fields inherited from class org.opennms.netmgt.poller.monitors.SnmpMonitorStrategy

EQUALS, GREATER_THAN, GREATER_THAN_EQUALS, hex, LESS_THAN, LESS_THAN_EQUALS, MATCHES, NOT_EQUAL

Constructor Summary

Constructors

Constructor	Description
CiscoPingMibMonitor()

Method Summary

Modifier and Type	Method	Description
Map<String,Object>	getRuntimeAttributes(MonitoredService svc, Map<String,Object> parameters)
PollStatus	poll(MonitoredService svc, Map<String,Object> parameters)	This method is the heart of the plug-in monitor.

Methods inherited from class org.opennms.netmgt.poller.monitors.SnmpMonitorStrategy

getAgentConfig, getStringValue, meetsCriteria

Methods inherited from class org.opennms.netmgt.poller.support.AbstractServiceMonitor

getEffectiveLocation, getKeyedBoolean, getKeyedInstance, getKeyedInteger, getKeyedLong, getKeyedObject, getKeyedString, getServiceProperties

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CiscoPingMibMonitor

public CiscoPingMibMonitor()

Method Detail

getRuntimeAttributes

public Map<String,Object> getRuntimeAttributes(MonitoredService svc,
                                                     Map<String,Object> parameters)

Specified by:

getRuntimeAttributes in interface ServiceMonitor

Overrides:

getRuntimeAttributes in class SnmpMonitorStrategy

Parameters:

svc - Includes details about to the service being monitored.

parameters - Includes the service parameters defined in poller-configuration.xml and those returned by ServiceMonitor.getRuntimeAttributes(MonitoredService, Map).

Returns:

Additional attributes, which should be added to the parameter map before calling ServiceMonitor.poll(MonitoredService, Map).

poll

public PollStatus poll(MonitoredService svc,
                       Map<String,Object> parameters)

This method is the heart of the plug-in monitor. Each time an interface requires a check to be performed as defined by the scheduler the poll method is invoked. The poll is passed the service to check.

By default when the status transition from up to down or vice versa the framework will generate an event. Additionally, if the polling interval changes due to an extended unavailability, the framework will generate an additional down event. The plug-in can suppress the generation of the default events by setting the suppress event bit in the returned integer.

NOTE: This method may be invoked on a Minion, in which case certain bean and facilities will not be available. If any state related information is required such as agent related configuration, it should retrieved by the ServiceMonitor.getRuntimeAttributes(MonitoredService, Map).

The poll() method is responsible for setting up and following up the IOS ping entry that proxies monitoring of the specified address for ICMP service availability.

Parameters:

svc - Includes details about to the service being monitored.

parameters - Includes the service parameters defined in poller-configuration.xml and those returned by ServiceMonitor.getRuntimeAttributes(MonitoredService, Map).

Returns:

The availability of the interface and if a transition event should be suppressed.

Throws:

RuntimeException - Thrown for any unrecoverable errors.

See Also:

PollStatus.SERVICE_AVAILABLE, PollStatus.SERVICE_UNAVAILABLE, PollStatus.SERVICE_AVAILABLE, PollStatus.SERVICE_UNAVAILABLE