org.mule.processor.chain

Class AbstractMessageProcessorChain

java.lang.Object

org.mule.processor.chain.AbstractMessageProcessorChain

All Implemented Interfaces:

FlowConstructAware, MuleContextAware, MessagingExceptionHandlerAware, Disposable, Initialisable, Lifecycle, Startable, Stoppable, NamedObject, NonBlockingSupported, MessageProcessor, MessageProcessorChain, MessageProcessorContainer, EndpointAware, NonBlockingMessageProcessor

Direct Known Subclasses:

DefaultMessageProcessorChain, InterceptingChainLifecycleWrapper

public abstract class AbstractMessageProcessorChain
extends Object
implements NonBlockingMessageProcessor, MessageProcessorChain, Lifecycle, FlowConstructAware, MuleContextAware, EndpointAware, MessageProcessorContainer, MessagingExceptionHandlerAware

Builder needs to return a composite rather than the first MessageProcessor in the chain. This is so that if this chain is nested in another chain the next MessageProcessor in the parent chain is not injected into the first in the nested chain.

Field Summary

Fields

Modifier and Type	Field and Description
protected FlowConstruct	flowConstruct
protected org.apache.commons.logging.Log	log
protected String	name
protected List<MessageProcessor>	processors

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

Constructor Summary

Constructors

Constructor and Description
AbstractMessageProcessorChain(String name, List<MessageProcessor> processors)

Method Summary

Methods

Modifier and Type	Method and Description
void	addMessageProcessorPathElements(MessageProcessorPathElement pathElement) Add the child nodes to the path element tree.
void	dispose() A lifecycle method where implementor should free up any resources.
protected abstract MuleEvent	doProcess(MuleEvent event)
List<MessageProcessor>	getMessageProcessors()
String	getName() Gets the name of the object
void	initialise() Method used to perform any initialisation work.
MuleEvent	process(MuleEvent event) Invokes the MessageProcessor.
void	setEndpoint(ImmutableEndpoint endpoint)
void	setFlowConstruct(FlowConstruct flowConstruct)
void	setMessagingExceptionHandler(MessagingExceptionHandler messagingExceptionHandler)
void	setMuleContext(MuleContext context)
void	start()
void	stop()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

log

protected final transient org.apache.commons.logging.Log log

name

protected String name

processors

protected List<MessageProcessor> processors

flowConstruct

protected FlowConstruct flowConstruct

Constructor Detail

AbstractMessageProcessorChain

public AbstractMessageProcessorChain(String name,
                             List<MessageProcessor> processors)

Method Detail

process

public MuleEvent process(MuleEvent event)
                  throws MuleException

Description copied from interface: MessageProcessor

Invokes the MessageProcessor.

Specified by:

process in interface MessageProcessor

Parameters:

event - MuleEvent to be processed

Returns:

optional response MuleEvent

Throws:

MuleException

doProcess

protected abstract MuleEvent doProcess(MuleEvent event)
                                throws MuleException

Throws:

MuleException

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

Throws:

MuleException

stop

public void stop()
          throws MuleException

Specified by:

stop in interface Stoppable

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

setFlowConstruct

public void setFlowConstruct(FlowConstruct flowConstruct)

Specified by:

setFlowConstruct in interface FlowConstructAware

getName

public String getName()

Description copied from interface: NamedObject

Gets the name of the object

Specified by:

getName in interface NamedObject

Returns:

the name of the object

toString

public String toString()

Overrides:

toString in class Object

setEndpoint

public void setEndpoint(ImmutableEndpoint endpoint)

Specified by:

setEndpoint in interface EndpointAware

getMessageProcessors

public List<MessageProcessor> getMessageProcessors()

Specified by:

getMessageProcessors in interface MessageProcessorChain

addMessageProcessorPathElements

public void addMessageProcessorPathElements(MessageProcessorPathElement pathElement)

Description copied from interface: MessageProcessorContainer

Add the child nodes to the path element tree.

Specified by:

addMessageProcessorPathElements in interface MessageProcessorContainer

setMessagingExceptionHandler

public void setMessagingExceptionHandler(MessagingExceptionHandler messagingExceptionHandler)

Specified by:

setMessagingExceptionHandler in interface MessagingExceptionHandlerAware

setMuleContext

public void setMuleContext(MuleContext context)

Specified by:

setMuleContext in interface MuleContextAware