Class DiskUsageMonitor

  • All Implemented Interfaces:
    ServiceMonitor

    public final class DiskUsageMonitor
    extends SnmpMonitorStrategy
    Check for disks via HOST-RESOURCES-MIB. This should be extended to support BOTH UCD-SNMP-MIB and HOST-RESOURCES-MIB

    This does SNMP and therefore relies on the SNMP configuration so it is not distributable.

    Author:
    Jason Aras, Ronald Roskens
    • Field Detail

      • LOG

        public static final org.slf4j.Logger LOG
    • Constructor Detail

      • DiskUsageMonitor

        public DiskUsageMonitor()
    • Method Detail

      • serviceName

        public java.lang.String serviceName()

        Returns the name of the service that the plug-in monitors ("DISK-USAGE").

        Returns:
        The service that the plug-in monitors.
      • poll

        public PollStatus poll​(MonitoredService svc,
                               java.util.Map<java.lang.String,​java.lang.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 polling the specified address for SNMP service availability.
        Parameters:
        svc -
        parameters -
        Returns:
        PollStatus

        Throws:
        java.lang.RuntimeException - Thrown for any unrecoverable errors.
        See Also:
        PollStatus.SERVICE_AVAILABLE, PollStatus.SERVICE_UNAVAILABLE, PollStatus.SERVICE_AVAILABLE, PollStatus.SERVICE_UNAVAILABLE