hu.mta.sztaki.lpds.cloud.simulator.energy
Class DirectEnergyMeter

java.lang.Object
  hu.mta.sztaki.lpds.cloud.simulator.Timed
      hu.mta.sztaki.lpds.cloud.simulator.energy.EnergyMeter
          hu.mta.sztaki.lpds.cloud.simulator.energy.DirectEnergyMeter

All Implemented Interfaces:

PowerState.PowerCharacteristicsChange, ResourceSpreader.PowerBehaviorChangeListener, Comparable<Timed>

public class DirectEnergyMeter
extends EnergyMeter
implements ResourceSpreader.PowerBehaviorChangeListener, PowerState.PowerCharacteristicsChange

Direct energy meters can monitor a single resource spreader and can convert their processed consumption values to a continuously updated energy figure.

Author:

"Gabor Kecskemeti, Distributed and Parallel Systems Group, University of Innsbruck (c) 2013"

Field Summary

private double	maxProcessable
private ResourceSpreader	measuredResource
private double	previousProcessingReport
private PowerState	usedPowerState

Fields inherited from class hu.mta.sztaki.lpds.cloud.simulator.energy.EnergyMeter

lastMetered

Constructor Summary

DirectEnergyMeter(ResourceSpreader spreader)

Method Summary

void	behaviorChanged(ResourceSpreader onSpreader, PowerState newState)
private double	collectProcessingReport()
void	prePowerChangeEvent(PowerState onMe)
boolean	startMeter(long interval, boolean dropPriorReading) Initiates an energy metering session.
void	stopMeter() Terminates the metering session, the totalconsumption values will no longer be updated!
void	tick(long fires) Maintains the totalconsumption value in every desired time interval
String	toString()
private void	updateFieldsUsingNewInterval(long interval)

Methods inherited from class hu.mta.sztaki.lpds.cloud.simulator.energy.EnergyMeter

getMeteringStarted, getMeteringStopped, getTotalConsumption, increaseTotalConsumption, readjustMeter

Methods inherited from class hu.mta.sztaki.lpds.cloud.simulator.Timed

compareTo, fire, getFireCount, getFrequency, getNextEvent, getNextFire, isSubscribed, jumpTime, nextEventDistance, resetTimed, setBackPreference, simulateUntil, simulateUntilLastEvent, skipEventsTill, subscribe, unsubscribe, updateFrequency

Methods inherited from class java.lang.Object

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

Field Detail

measuredResource

private ResourceSpreader measuredResource

usedPowerState

private PowerState usedPowerState

previousProcessingReport

private double previousProcessingReport

maxProcessable

private double maxProcessable

Constructor Detail

DirectEnergyMeter

public DirectEnergyMeter(ResourceSpreader spreader)

Method Detail

toString

public String toString()

Overrides:

toString in class Timed

startMeter

public boolean startMeter(long interval,
                          boolean dropPriorReading)

Description copied from class: EnergyMeter

Initiates an energy metering session.

Overrides:

startMeter in class EnergyMeter

Parameters:

interval - The meter refresh frequency.

dropPriorReading -

False: the totalConsumption values will accumulate from a previous metering session True: the totalconsumption values will start from 0 after the completion of this function.

Returns:

• False: if a metering session is already underway
• True: if the metering session was successfully initiated

stopMeter

public void stopMeter()

Description copied from class: EnergyMeter

Terminates the metering session, the totalconsumption values will no longer be updated!

Overrides:

stopMeter in class EnergyMeter

behaviorChanged

public void behaviorChanged(ResourceSpreader onSpreader,
                            PowerState newState)

Specified by:

behaviorChanged in interface ResourceSpreader.PowerBehaviorChangeListener

prePowerChangeEvent

public void prePowerChangeEvent(PowerState onMe)

Specified by:

prePowerChangeEvent in interface PowerState.PowerCharacteristicsChange

updateFieldsUsingNewInterval

private void updateFieldsUsingNewInterval(long interval)

collectProcessingReport

private double collectProcessingReport()

tick

public void tick(long fires)

Maintains the totalconsumption value in every desired time interval

Specified by:

tick in class Timed