org.apache.sling.event.impl.jobs.queues
Class TopicRoundRobinJobQueue

java.lang.Object
  org.apache.sling.event.impl.jobs.StatisticsImpl
      org.apache.sling.event.impl.jobs.queues.AbstractJobQueue
          org.apache.sling.event.impl.jobs.queues.AbstractParallelJobQueue
              org.apache.sling.event.impl.jobs.queues.TopicRoundRobinJobQueue

All Implemented Interfaces:

JobStatusNotifier, Queue, Statistics

public final class TopicRoundRobinJobQueue
extends AbstractParallelJobQueue

This queue acts similar to the parallel job queue. Except that new jobs are selected based on a round robin topic selection scheme. Failing jobs are rescheduled and put at the end of the queue.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.sling.event.impl.jobs.JobStatusNotifier

JobStatusNotifier.NotifierContext

Field Summary

Fields inherited from class org.apache.sling.event.impl.jobs.queues.AbstractParallelJobQueue

jobCount

Fields inherited from class org.apache.sling.event.impl.jobs.queues.AbstractJobQueue

configuration, isWaiting, logger, queueName, running

Fields inherited from interface org.apache.sling.event.impl.jobs.JobStatusNotifier

CONTEXT_PROPERTY_NAME

Constructor Summary

TopicRoundRobinJobQueue(java.lang.String name, InternalQueueConfiguration config, EnvironmentComponent env, org.apache.sling.commons.scheduler.Scheduler scheduler)

Method Summary

protected boolean	canBeMarkedForRemoval()
void	clear() Remove all outstanding jobs from the queue.
java.lang.String	getStateInfo() Return some information about the current state of the queue.
protected boolean	isEmpty() Is the queue empty?
protected void	put(JobEvent event) Put another job into the queue.
protected java.util.Collection<JobEvent>	removeAllJobs() Remove all events from the queue and return them.
protected JobEvent	take() Get another job from the queue.

Methods inherited from class org.apache.sling.event.impl.jobs.queues.AbstractParallelJobQueue

notifyFinished, reschedule, start

Methods inherited from class org.apache.sling.event.impl.jobs.queues.AbstractJobQueue

checkForUnprocessedJobs, close, executeJob, finishedJob, getConfiguration, getName, getState, getStatistics, ignoreException, isMarkedForRemoval, isSuspended, markForRemoval, process, removeAll, rename, resume, sendAcknowledge, start, suspend

Methods inherited from class org.apache.sling.event.impl.jobs.StatisticsImpl

add, addActive, cancelledJob, clearQueued, copyFrom, decQueued, failedJob, finishedJob, getAverageProcessingTime, getAverageWaitingTime, getLastActivatedJobTime, getLastFinishedJobTime, getNumberOfActiveJobs, getNumberOfCancelledJobs, getNumberOfFailedJobs, getNumberOfFinishedJobs, getNumberOfJobs, getNumberOfProcessedJobs, getNumberOfQueuedJobs, getStartTime, incQueued, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

TopicRoundRobinJobQueue

public TopicRoundRobinJobQueue(java.lang.String name,
                               InternalQueueConfiguration config,
                               EnvironmentComponent env,
                               org.apache.sling.commons.scheduler.Scheduler scheduler)

Method Detail

getStateInfo

public java.lang.String getStateInfo()

Description copied from interface: Queue

Return some information about the current state of the queue. This method is meant to see the internal state of the queue for debugging or monitoring purposes.

Specified by:

getStateInfo in interface Queue

Overrides:

getStateInfo in class AbstractParallelJobQueue

See Also:

Queue.getStateInfo()

canBeMarkedForRemoval

protected boolean canBeMarkedForRemoval()

Overrides:

canBeMarkedForRemoval in class AbstractParallelJobQueue

put

protected void put(JobEvent event)

Description copied from class: AbstractJobQueue

Put another job into the queue.

Specified by:

put in class AbstractJobQueue

take

protected JobEvent take()

Description copied from class: AbstractJobQueue

Get another job from the queue.

Specified by:

take in class AbstractJobQueue

isEmpty

protected boolean isEmpty()

Description copied from class: AbstractJobQueue

Is the queue empty?

Specified by:

isEmpty in class AbstractJobQueue

clear

public void clear()

Description copied from interface: Queue

Remove all outstanding jobs from the queue. This does not delete the jobs. The jobs are either processed by a different cluster node or on restart.

Specified by:

clear in interface Queue

Overrides:

clear in class AbstractJobQueue

See Also:

Queue.clear()

removeAllJobs

protected java.util.Collection<JobEvent> removeAllJobs()

Description copied from class: AbstractJobQueue

Remove all events from the queue and return them.

Specified by:

removeAllJobs in class AbstractJobQueue