Rio Project 4.2 API Documentation

org.rioproject.system.measurable.disk
Class DiskSpace

java.lang.Object
  org.rioproject.watch.Watch
      org.rioproject.watch.ThresholdWatch
          org.rioproject.watch.PeriodicWatch
              org.rioproject.system.measurable.MeasurableCapability
                  org.rioproject.system.measurable.disk.DiskSpace

All Implemented Interfaces:

ResourceCostProducer, DiskSpaceMBean, MeasurableCapabilityMBean, PeriodicWatchMBean, ThresholdWatchMBean, WatchMBean

public class DiskSpace
extends MeasurableCapability
implements DiskSpaceMBean

The DiskSpace object is a MeasurableCapability which monitors a ComputeResource's DiskSpace utilization

Author:

Dennis Reedy

Field Summary

static String

VIEW

Fields inherited from class org.rioproject.system.measurable.MeasurableCapability

lastMeasured, monitor, sampleSize

Fields inherited from class org.rioproject.watch.PeriodicWatch

DEFAULT_PERIOD

Fields inherited from class org.rioproject.watch.Watch

DEFAULT_VIEW, id, localRef, watchDataSource

Constructor Summary

DiskSpace(Configuration config)
Construct a new DiskSpace object

Method Summary

void	checkValue() Abstract method to check the watch's value at the periodic interval
double	getCapacity() Get the computed utilization for this DiskSpace object
double	getUtilization() Get the computed utilization for this DiskSpace object
void	start() Override PeriodicWatch.start() to get an initial reading prior to scheduling

Methods inherited from class org.rioproject.system.measurable.MeasurableCapability

addSecondaryThresholdManager, addWatchRecord, calculateResourceCost, getConfiguration, getMeasuredResource, getObservable, getSampleSize, getSLA, getThresholdManagers, isEnabled, removeSecondaryThresholdManager, setEnabled, setLastMeasuredResource, setMeasurableMonitor, setResourceCostModel, setSampleSize, setSLA, setWatchDataSource

Methods inherited from class org.rioproject.watch.PeriodicWatch

getPeriod, setPeriod, stop

Methods inherited from class org.rioproject.watch.ThresholdWatch

addThresholdListener, getBreachedCount, getClearedCount, getCurrentHighThreshold, getCurrentLowThreshold, getHighThreshold, getLowThreshold, getThresholdManager, getThresholdValues, removeThresholdListener, setCurrentHighThreshold, setCurrentLowThreshold, setThresholdValues

Methods inherited from class org.rioproject.watch.Watch

clear, equals, getCalculables, getId, getLastCalculableValue, getView, getWatchDataSource, hashCode, main, setView, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.rioproject.system.measurable.MeasurableCapabilityMBean

getSampleSize, setSampleSize

Methods inherited from interface org.rioproject.watch.PeriodicWatchMBean

getPeriod, setPeriod, stop

Methods inherited from interface org.rioproject.watch.ThresholdWatchMBean

getBreachedCount, getClearedCount, getCurrentHighThreshold, getCurrentLowThreshold, getHighThreshold, getLowThreshold, setCurrentHighThreshold, setCurrentLowThreshold

Methods inherited from interface org.rioproject.watch.WatchMBean

clear, getCalculables, getId, getLastCalculableValue

Field Detail

VIEW

public static final String VIEW

See Also:

Constant Field Values

Constructor Detail

DiskSpace

public DiskSpace(Configuration config)

Construct a new DiskSpace object

Parameters:

config - Configuration object

Method Detail

start

public void start()

Override PeriodicWatch.start() to get an initial reading prior to scheduling

Specified by:

start in interface PeriodicWatchMBean

Overrides:

start in class PeriodicWatch

See Also:

PeriodicWatchMBean.start()

getUtilization

public double getUtilization()

Get the computed utilization for this DiskSpace object

Specified by:

getUtilization in interface MeasurableCapabilityMBean

Returns:

Utilization computed for this component

getCapacity

public double getCapacity()

Get the computed utilization for this DiskSpace object

Specified by:

getCapacity in interface DiskSpaceMBean

Returns:

Utilization computed for this component

checkValue

public void checkValue()

Description copied from interface: PeriodicWatchMBean

Abstract method to check the watch's value at the periodic interval

Specified by:

checkValue in interface PeriodicWatchMBean