hu.mta.sztaki.lpds.cloud.simulator.iaas.statenotifications
Class PowerStateChangeNotificationHandler

java.lang.Object
  hu.mta.sztaki.lpds.cloud.simulator.iaas.statenotifications.PowerStateChangeNotificationHandler

All Implemented Interfaces:

SingleNotificationHandler<PowerBehaviorChangeListener,org.apache.commons.lang3.tuple.Pair<ResourceSpreader,PowerState>>

public class PowerStateChangeNotificationHandler
extends Object
implements SingleNotificationHandler<PowerBehaviorChangeListener,org.apache.commons.lang3.tuple.Pair<ResourceSpreader,PowerState>>

implements a notification handler for sending out notifications about power state changes in resource spreaders

Author:

"Gabor Kecskemeti, Laboratory of Parallel and Distributed Systems, MTA SZTAKI (c) 2015"

Field Summary

private static PowerStateChangeNotificationHandler

handlerSingleton the single object that will handle all notification operations on the same way

Constructor Summary

private

PowerStateChangeNotificationHandler() disables the instantiation of the handler so we really just have a single instance for all handling operations

Method Summary

static StateDependentEventHandler<PowerBehaviorChangeListener,org.apache.commons.lang3.tuple.Pair<ResourceSpreader,PowerState>>	getHandlerInstance() gets the event handler that will manage the notification subscriptions for the particular resource spreader object that asked for the handler.
void	sendNotification(PowerBehaviorChangeListener onObject, org.apache.commons.lang3.tuple.Pair<ResourceSpreader,PowerState> newPowerBehavior) The event handling mechanism for power state change notifications about resource spreaders

Methods inherited from class java.lang.Object

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

Field Detail

handlerSingleton

private static final PowerStateChangeNotificationHandler handlerSingleton

the single object that will handle all notification operations on the same way

Constructor Detail

PowerStateChangeNotificationHandler

private PowerStateChangeNotificationHandler()

disables the instantiation of the handler so we really just have a single instance for all handling operations

Method Detail

getHandlerInstance

public static StateDependentEventHandler<PowerBehaviorChangeListener,org.apache.commons.lang3.tuple.Pair<ResourceSpreader,PowerState>> getHandlerInstance()

gets the event handler that will manage the notification subscriptions for the particular resource spreader object that asked for the handler.

Returns:

the eventh handler

sendNotification

public void sendNotification(PowerBehaviorChangeListener onObject,
                             org.apache.commons.lang3.tuple.Pair<ResourceSpreader,PowerState> newPowerBehavior)

The event handling mechanism for power state change notifications about resource spreaders

Specified by:

sendNotification in interface SingleNotificationHandler<PowerBehaviorChangeListener,org.apache.commons.lang3.tuple.Pair<ResourceSpreader,PowerState>>

Parameters:

onObject - The listener to send the event to

newPowerBehavior - a data pair containing the resource spreader that changed its state and the power state that the spreader just switches to.