org.apache.sling.event.impl.jobs.jcr
Class PersistenceHandler

java.lang.Object
  org.apache.sling.event.impl.jobs.jcr.PersistenceHandler

All Implemented Interfaces:

java.lang.Runnable, javax.jcr.observation.EventListener, org.osgi.service.event.EventHandler

@Service(value={PersistenceHandler.class,org.osgi.service.event.EventHandler.class,java.lang.Runnable.class})
@Properties(value={@Property(name="event.topics",propertyPrivate=true,value={"org/osgi/framework/BundleEvent/UPDATED","org/osgi/framework/BundleEvent/STARTED","org/apache/sling/event/job"}),@Property(name="scheduler.period",longValue=300L,label="%persscheduler.period.name",description="%persscheduler.period.description"),@Property(name="scheduler.concurrent",boolValue=false,propertyPrivate=true)})
public class PersistenceHandler
extends java.lang.Object
implements javax.jcr.observation.EventListener, java.lang.Runnable, org.osgi.service.event.EventHandler

Persistence handler for the jobs

Constructor Summary

PersistenceHandler()

Method Summary

protected void	activate(org.osgi.service.component.ComponentContext context) Activate this component.
void	cleanup() This method is invoked periodically.
protected void	deactivate(org.osgi.service.component.ComponentContext context) Deactivate this component.
void	finished(JobEvent info) Finish the job
org.osgi.service.event.Event	forceReadEvent(javax.jcr.Node eventNode) Read an event from the repository.
java.lang.String	getRepositoryPath() Return the repository path.
void	handleEvent(org.osgi.service.event.Event event)
boolean	isAlive(JCRJobEvent info) Check if the job is still alive = unfinished node in repository
boolean	lock(JobEvent info) Try to lock the node in the repository.
void	onEvent(javax.jcr.observation.EventIterator iter)
boolean	remove(java.lang.String jobId) Remove the job - if not currently in processing.
boolean	reschedule(JobEvent info) Reschedule the job
void	restart(JobEvent info) Try to restart the job
void	run() This method is invoked periodically by the scheduler.
void	unlock(JobEvent info) Unlock the node for the event
protected void	update(org.osgi.service.component.ComponentContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistenceHandler

public PersistenceHandler()

Method Detail

activate

@Activate
protected void activate(org.osgi.service.component.ComponentContext context)
                 throws javax.jcr.RepositoryException

Activate this component.

Parameters:

context - The component context.

Throws:

javax.jcr.RepositoryException

deactivate

@Deactivate
protected void deactivate(org.osgi.service.component.ComponentContext context)

Deactivate this component.

Parameters:

context - The component context.

update

@Modified
protected void update(org.osgi.service.component.ComponentContext context)

onEvent

public void onEvent(javax.jcr.observation.EventIterator iter)

Specified by:

onEvent in interface javax.jcr.observation.EventListener

See Also:

EventListener.onEvent(javax.jcr.observation.EventIterator)

cleanup

public void cleanup()

This method is invoked periodically.

See Also:

Runnable.run()

getRepositoryPath

public java.lang.String getRepositoryPath()

Return the repository path.

forceReadEvent

public org.osgi.service.event.Event forceReadEvent(javax.jcr.Node eventNode)
                                            throws javax.jcr.RepositoryException

Read an event from the repository. This method is similar as readEvent(Node, boolean) with the exception that it even loads the event if classes are missing

Throws:

javax.jcr.RepositoryException

lock

public boolean lock(JobEvent info)

Try to lock the node in the repository. Locking might fail if: - the node has been removed - the job has alreay been processed - someone else locked it already

Parameters:

info - The job event

Returns:

true if the node could be locked

restart

public void restart(JobEvent info)

Try to restart the job

unlock

public void unlock(JobEvent info)

Unlock the node for the event

finished

public void finished(JobEvent info)

Finish the job

remove

public boolean remove(java.lang.String jobId)

Remove the job - if not currently in processing.

reschedule

public boolean reschedule(JobEvent info)

Reschedule the job

run

public void run()

This method is invoked periodically by the scheduler.

Specified by:

run in interface java.lang.Runnable

See Also:

Runnable.run()

handleEvent

public void handleEvent(org.osgi.service.event.Event event)

Specified by:

handleEvent in interface org.osgi.service.event.EventHandler

See Also:

EventHandler.handleEvent(org.osgi.service.event.Event)

isAlive

public boolean isAlive(JCRJobEvent info)

Check if the job is still alive = unfinished node in repository