org.mule.processor

Class SedaStageInterceptingMessageProcessor

java.lang.Object

org.mule.AbstractAnnotatedObject

org.mule.processor.AbstractInterceptingMessageProcessorBase

org.mule.processor.AbstractInterceptingMessageProcessor

org.mule.processor.AsyncInterceptingMessageProcessor

org.mule.processor.SedaStageInterceptingMessageProcessor

All Implemented Interfaces:

Runnable, javax.resource.spi.work.Work, AnnotatedObject, MuleContextAware, MessagingExceptionHandlerAware, Disposable, Initialisable, Lifecycle, Startable, Stoppable, InterceptingMessageProcessor, MessageProcessor, MessageProcessorContainer, MessageSource, Pausable, Resumable

Direct Known Subclasses:

LaxSedaStageInterceptingMessageProcessor

public class SedaStageInterceptingMessageProcessor
extends AsyncInterceptingMessageProcessor
implements javax.resource.spi.work.Work, Lifecycle, Pausable, Resumable

Processes MuleEvent's asynchronously using a MuleWorkManager to schedule asynchronous processing of the next MessageProcessor.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_QUEUE_SIZE_MAX_THREADS_FACTOR
protected SedaStageLifecycleManager	lifecycleManager
protected Queue	queue
protected static String	QUEUE_NAME_PREFIX
protected QueueConfiguration	queueConfiguration
protected String	queueName
protected QueueProfile	queueProfile
protected QueueStatistics	queueStatistics
protected int	queueTimeout

Fields inherited from class org.mule.processor.AsyncInterceptingMessageProcessor

doThreading, SYNCHRONOUS_EVENT_ERROR_MESSAGE, threadTimeout, workManager, workManagerSource

Fields inherited from class org.mule.processor.AbstractInterceptingMessageProcessorBase

logger, muleContext, next, notificationHandler

Fields inherited from interface org.mule.api.lifecycle.Initialisable

PHASE_NAME

Fields inherited from interface org.mule.api.lifecycle.Startable

PHASE_NAME

Fields inherited from interface org.mule.api.lifecycle.Stoppable

PHASE_NAME

Fields inherited from interface org.mule.api.lifecycle.Disposable

PHASE_NAME

Fields inherited from interface org.mule.service.Pausable

PHASE_NAME

Fields inherited from interface org.mule.service.Resumable

PHASE_NAME

Fields inherited from interface org.mule.api.AnnotatedObject

PROPERTY_NAME

Constructor Summary

Constructors

Constructor and Description
SedaStageInterceptingMessageProcessor(String threadName, String queueName, QueueProfile queueProfile, int queueTimeout, ThreadingProfile threadingProfile, QueueStatistics queueStatistics, MuleContext muleContext)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	configureDefaultQueueSize(QueueProfile queueProfile, ThreadingProfile threadingProfile)
protected MuleEvent	dequeue()
void	dispose() A lifecycle method where implementor should free up any resources.
protected void	enqueue(MuleEvent event)
protected String	getQueueName()
int	getQueueSize()
protected String	getStageDescription()
protected String	getStageName()
void	initialise() Method used to perform any initialisation work.
protected boolean	isQueuePersistent() Are the events in the SEDA queue persistent?
protected boolean	isStatsEnabled()
void	pause()
protected void	processNextAsync(MuleEvent event)
void	release()
void	resume()
protected void	rollbackDequeue(MuleEvent event) Roll back the previous dequeue(), i.e., put the event at the front of the queue, not at the back which is what enqueue() does.
void	run() While the service isn't stopped this runs a continuous loop checking for new events in the queue.
void	start()
void	stop()
protected void	waitIfPaused()

Methods inherited from class org.mule.processor.AsyncInterceptingMessageProcessor

fireAsyncScheduledNotification, firePipelineNotification, isProcessAsync, process, processNextTimed, setMessagingExceptionHandler

Methods inherited from class org.mule.processor.AbstractInterceptingMessageProcessorBase

addMessageProcessorPathElements, getListener, getMuleContext, isEventValid, processNext, setListener, setMuleContext, toString

Methods inherited from class org.mule.AbstractAnnotatedObject

getAnnotation, getAnnotations, setAnnotations

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mule.api.source.MessageSource

setListener

Field Detail

QUEUE_NAME_PREFIX

protected static final String QUEUE_NAME_PREFIX

See Also:

Constant Field Values

DEFAULT_QUEUE_SIZE_MAX_THREADS_FACTOR

public static int DEFAULT_QUEUE_SIZE_MAX_THREADS_FACTOR

queueProfile

protected QueueProfile queueProfile

queueTimeout

protected int queueTimeout

queueStatistics

protected QueueStatistics queueStatistics

queueName

protected String queueName

queue

protected Queue queue

queueConfiguration

protected QueueConfiguration queueConfiguration

lifecycleManager

protected SedaStageLifecycleManager lifecycleManager

Constructor Detail

SedaStageInterceptingMessageProcessor

public SedaStageInterceptingMessageProcessor(String threadName,
                                     String queueName,
                                     QueueProfile queueProfile,
                                     int queueTimeout,
                                     ThreadingProfile threadingProfile,
                                     QueueStatistics queueStatistics,
                                     MuleContext muleContext)

Method Detail

configureDefaultQueueSize

protected void configureDefaultQueueSize(QueueProfile queueProfile,
                             ThreadingProfile threadingProfile)

processNextAsync

protected void processNextAsync(MuleEvent event)
                         throws MuleException

Overrides:

processNextAsync in class AsyncInterceptingMessageProcessor

Throws:

MuleException

isStatsEnabled

protected boolean isStatsEnabled()

enqueue

protected void enqueue(MuleEvent event)
                throws Exception

Throws:

Exception

dequeue

protected MuleEvent dequeue()
                     throws Exception

Throws:

Exception

rollbackDequeue

protected void rollbackDequeue(MuleEvent event)

Roll back the previous dequeue(), i.e., put the event at the front of the queue, not at the back which is what enqueue() does.

run

public void run()

While the service isn't stopped this runs a continuous loop checking for new events in the queue.

Specified by:

run in interface Runnable

isQueuePersistent

protected boolean isQueuePersistent()

Are the events in the SEDA queue persistent?

getQueueSize

public int getQueueSize()

getQueueName

protected String getQueueName()

getStageName

protected String getStageName()

getStageDescription

protected String getStageDescription()

waitIfPaused

protected void waitIfPaused()
                     throws InterruptedException

Throws:

InterruptedException

release

public void release()

Specified by:

release in interface javax.resource.spi.work.Work

initialise

public void initialise()
                throws InitialisationException

Description copied from interface: Initialisable

Method used to perform any initialisation work. If a fatal error occurs during initialisation an InitialisationException should be thrown, causing the Mule instance to shutdown. If the error is recoverable, say by retrying to connect, a RecoverableException should be thrown. There is no guarantee that by throwing a Recoverable exception that the Mule instance will not shut down.

Specified by:

initialise in interface Initialisable

Throws:

InitialisationException - if a fatal error occurs causing the Mule instance to shutdown

RecoverableException - if an error occurs that can be recovered from

start

public void start()
           throws MuleException

Specified by:

start in interface Startable

Overrides:

start in class AsyncInterceptingMessageProcessor

Throws:

MuleException

stop

public void stop()
          throws MuleException

Specified by:

stop in interface Stoppable

Overrides:

stop in class AsyncInterceptingMessageProcessor

Throws:

MuleException

dispose

public void dispose()

Description copied from interface: Disposable

A lifecycle method where implementor should free up any resources. If an exception is thrown it should just be logged and processing should continue. This method should not throw Runtime exceptions.

Specified by:

dispose in interface Disposable

pause

public void pause()
           throws MuleException

Specified by:

pause in interface Pausable

Throws:

MuleException

resume

public void resume()
            throws MuleException

Specified by:

resume in interface Resumable

Throws:

MuleException