org.mule.processor

Class IdempotentRedeliveryPolicy

java.lang.Object

org.mule.AbstractAnnotatedObject

org.mule.processor.AbstractInterceptingMessageProcessorBase

org.mule.processor.AbstractInterceptingMessageProcessor

org.mule.processor.AbstractRedeliveryPolicy

org.mule.processor.IdempotentRedeliveryPolicy

All Implemented Interfaces:

AnnotatedObject, FlowConstructAware, MuleContextAware, MessagingExceptionHandlerAware, Disposable, Initialisable, Lifecycle, Startable, Stoppable, InterceptingMessageProcessor, MessageProcessor, MessageProcessorContainer, MessageSource

public class IdempotentRedeliveryPolicy
extends AbstractRedeliveryPolicy

Implement a retry policy for Mule. This is similar to JMS retry policies that will redeliver a message a maximum number of times. If this maximum is exceeded, the message is sent to a dead letter queue, Here, if the processing of the messages fails too often, the message is sent to the failedMessageProcessor MP, whence success is force to be returned, to allow the message to be considered "consumed".

Field Summary

Fields

Modifier and Type	Field and Description
protected org.slf4j.Logger	logger

Fields inherited from class org.mule.processor.AbstractRedeliveryPolicy

deadLetterQueue, flowConstruct, maxRedeliveryCount, REDELIVERY_FAIL_ON_FIRST

Fields inherited from class org.mule.processor.AbstractInterceptingMessageProcessorBase

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.api.AnnotatedObject

PROPERTY_NAME

Constructor Summary

Constructors

Constructor and Description
IdempotentRedeliveryPolicy()

Method Summary

Methods

Modifier and Type	Method and Description
void	dispose() A lifecycle method where implementor should free up any resources.
AtomicInteger	findCounter(String messageId)
String	getIdExpression()
String	getMessageDigestAlgorithm()
void	initialise() Method used to perform any initialisation work.
boolean	isUseSecureHash()
MuleEvent	process(MuleEvent event) Invokes the MessageProcessor.
void	setIdExpression(String idExpression)
void	setMessageDigestAlgorithm(String messageDigestAlgorithm)
void	setMessageProcessor(MessageProcessor processor)
void	setUseSecureHash(boolean useSecureHash)
void	start()

Methods inherited from class org.mule.processor.AbstractRedeliveryPolicy

getMaxRedeliveryCount, getTheFailedMessageProcessor, setDeadLetterQueue, setFlowConstruct, setMaxRedeliveryCount, setMessagingExceptionHandler, setMuleContext, stop

Methods inherited from class org.mule.processor.AbstractInterceptingMessageProcessorBase

addMessageProcessorPathElements, getListener, getMuleContext, isEventValid, processNext, setListener, 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

logger

protected org.slf4j.Logger logger

Constructor Detail

IdempotentRedeliveryPolicy

public IdempotentRedeliveryPolicy()

Method Detail

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

Overrides:

initialise in class AbstractRedeliveryPolicy

Throws:

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

RecoverableException - if an error occurs that can be recovered from

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

Overrides:

dispose in class AbstractRedeliveryPolicy

start

public void start()
           throws MuleException

Specified by:

start in interface Startable

Overrides:

start in class AbstractRedeliveryPolicy

Throws:

MuleException

process

public MuleEvent process(MuleEvent event)
                  throws MuleException

Description copied from interface: MessageProcessor

Invokes the MessageProcessor.

Parameters:

event - MuleEvent to be processed

Returns:

optional response MuleEvent

Throws:

MuleException

findCounter

public AtomicInteger findCounter(String messageId)
                          throws ObjectStoreException

Throws:

ObjectStoreException

isUseSecureHash

public boolean isUseSecureHash()

setUseSecureHash

public void setUseSecureHash(boolean useSecureHash)

getMessageDigestAlgorithm

public String getMessageDigestAlgorithm()

setMessageDigestAlgorithm

public void setMessageDigestAlgorithm(String messageDigestAlgorithm)

getIdExpression

public String getIdExpression()

setIdExpression

public void setIdExpression(String idExpression)

setMessageProcessor

public void setMessageProcessor(MessageProcessor processor)