org.smartrplace.tools.exec.impl

Class HousekeepingExecService

java.lang.Object

org.smartrplace.tools.exec.impl.HousekeepingExecService

public class HousekeepingExecService
extends Object

A whiteboard service that collects all Runnable services with properties ExecutorConstants.TASK_DELAY and ExecutorConstants.TASK_PERIOD and executes them periodically. The service uses a single-threaded executor; it is intended for short-lived and seldom-running tasks only.

Author:

cnoelle

Constructor Summary

Constructors

Constructor and Description
HousekeepingExecService()

Method Summary

Modifier and Type	Method and Description
protected void	activate(HousekeepingServiceConfig config)
protected void	addTask(org.osgi.service.component.ComponentServiceObjects<Runnable> taskService)
protected void	deactivate()
long	getExecTime(String timeUnit, int identityHashCode)
float	getExecTimeFraction(int identityHashCode)
long	getIdleTime(String timeUnit)
Map<Runnable,Integer>	getTasks()
Map<Runnable,Boolean>	isTaskAlive(int identityHashCode)
protected void	removeTask(org.osgi.service.component.ComponentServiceObjects<Runnable> taskService)
Collection<Runnable>	restartTask(String timeUnit, int identityHashCode, long delay, long period)
Collection<Runnable>	stopTask(int identityHashCode)

Methods inherited from class java.lang.Object

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

Constructor Detail

HousekeepingExecService

public HousekeepingExecService()

Method Detail

addTask

protected void addTask(org.osgi.service.component.ComponentServiceObjects<Runnable> taskService)

removeTask

protected void removeTask(org.osgi.service.component.ComponentServiceObjects<Runnable> taskService)

activate

protected void activate(HousekeepingServiceConfig config)

deactivate

protected void deactivate()

getTasks

public Map<Runnable,Integer> getTasks()

stopTask

public Collection<Runnable> stopTask(int identityHashCode)

isTaskAlive

public Map<Runnable,Boolean> isTaskAlive(int identityHashCode)

restartTask

public Collection<Runnable> restartTask(String timeUnit,
                                        int identityHashCode,
                                        long delay,
                                        long period)
                                 throws InterruptedException,
                                        ExecutionException,
                                        TimeoutException

Throws:

InterruptedException

ExecutionException

TimeoutException

getExecTime

public long getExecTime(String timeUnit,
                        int identityHashCode)

getExecTimeFraction

public float getExecTimeFraction(int identityHashCode)

getIdleTime

public long getIdleTime(String timeUnit)