Package com.adaptris.core.services

Class RetryingServiceWrapper

java.lang.Object

com.adaptris.core.ServiceImp

com.adaptris.core.services.RetryingServiceWrapper

All Implemented Interfaces:

AdaptrisComponent, ComponentLifecycle, ComponentLifecycleExtension, EventHandlerAware, MessageEventGenerator, Service, ServiceWrapper, StateManagedComponent

@ComponentProfile(summary="Retry a message periodically if the wrapped service fails",
                  tag="service")
public class RetryingServiceWrapper
extends ServiceImp
implements EventHandlerAware, ServiceWrapper

This service wrapper, will attempt to run the wrapped service and should the service fail with a ServiceException we will attempt to retry the service according to your configuration.

You can control then retrying behaviour with the following two configurable options;

• num-retries
• delay-between-retries

A value of zero for num-retries will retry the wrapped service infinitely. The default value if not set is 10.

The delay-between-retries is of type TimeInterval. The default value if not set is 10 seconds.

You may also force the wrapped service to be restarted upon each retry by setting restart-on-failure to true;

Field Summary

Fields inherited from class com.adaptris.core.ServiceImp

log

Constructor Summary

Constructors

Constructor	Description
RetryingServiceWrapper()

Method Summary

Modifier and Type	Method	Description
protected void	closeService()
void	doService(AdaptrisMessage msg)	Apply the service to the message.
TimeInterval	getDelayBetweenRetries()
java.lang.Integer	getNumRetries()
java.lang.Boolean	getRestartOnFailure()
Service	getService()
protected void	initService()
boolean	isRestartOnFailure()
void	prepare()	Prepare for initialisation.
void	registerEventHandler(EventHandler eh)	Register the current event handler against this component.
void	setDelayBetweenRetries(TimeInterval delayBetweenRetries)
void	setNumRetries(java.lang.Integer numRetries)
void	setRestartOnFailure(java.lang.Boolean restartOnFailure)
void	setService(Service service)
void	start()	Starts the component.
void	stop()	Stop the component
Service[]	wrappedServices()	Return all the services that are wrapped by this service.

Methods inherited from class com.adaptris.core.ServiceImp

changeState, close, continueOnFailure, createName, createQualifier, getContinueOnFail, getIsTrackingEndpoint, getUniqueId, init, isBranching, isTrackingEndpoint, requestClose, requestInit, requestStart, requestStop, retrieveComponentState, setContinueOnFail, setIsTrackingEndpoint, setUniqueId

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.adaptris.core.AdaptrisComponent

getUniqueId

Methods inherited from interface com.adaptris.core.ComponentLifecycle

close, init

Methods inherited from interface com.adaptris.core.MessageEventGenerator

createName, createQualifier, isTrackingEndpoint

Methods inherited from interface com.adaptris.core.Service

continueOnFailure, isBranching, setUniqueId

Methods inherited from interface com.adaptris.core.StateManagedComponent

changeState, requestClose, requestInit, requestStart, requestStop, retrieveComponentState

Constructor Detail

RetryingServiceWrapper

public RetryingServiceWrapper()

Method Detail

doService

public void doService(AdaptrisMessage msg)
               throws ServiceException

Description copied from interface: Service

Apply the service to the message.

Specified by:

doService in interface Service

Parameters:

msg - the AdaptrisMessage to process

Throws:

ServiceException - wrapping any underlying Exceptions

prepare

public void prepare()
             throws CoreException

Description copied from interface: ComponentLifecycleExtension

Prepare for initialisation.

Specified by:

prepare in interface ComponentLifecycleExtension

Throws:

CoreException

initService

protected void initService()
                    throws CoreException

Specified by:

initService in class ServiceImp

Throws:

CoreException

closeService

protected void closeService()

Specified by:

closeService in class ServiceImp

start

public void start()
           throws CoreException

Description copied from interface: ComponentLifecycle

Starts the component.

Once a component is started it should be ready to process messages. In the case of AdaptrisMessageConsumer, calling start will begin message delivery.

Specified by:

start in interface ComponentLifecycle

Overrides:

start in class ServiceImp

Throws:

CoreException - wrapping any underlying Exceptions

stop

public void stop()

Description copied from interface: ComponentLifecycle

Stop the component

A stopped component is not expected to be ready to process messages. In the case of AdaptrisMessageConsumer, calling stop will pause message delivery. Throwing a RuntimeException may cause unintended consequences

Specified by:

stop in interface ComponentLifecycle

Overrides:

stop in class ServiceImp

getService

public Service getService()

setService

public void setService(Service service)

getNumRetries

public java.lang.Integer getNumRetries()

setNumRetries

public void setNumRetries(java.lang.Integer numRetries)

getDelayBetweenRetries

public TimeInterval getDelayBetweenRetries()

setDelayBetweenRetries

public void setDelayBetweenRetries(TimeInterval delayBetweenRetries)

isRestartOnFailure

public boolean isRestartOnFailure()

setRestartOnFailure

public void setRestartOnFailure(java.lang.Boolean restartOnFailure)

getRestartOnFailure

public java.lang.Boolean getRestartOnFailure()

registerEventHandler

public void registerEventHandler(EventHandler eh)

Description copied from interface: EventHandlerAware

Register the current event handler against this component.

Specified by:

registerEventHandler in interface EventHandlerAware

Parameters:

eh - the event handler currently in use.

wrappedServices

public Service[] wrappedServices()

Description copied from interface: ServiceWrapper

Return all the services that are wrapped by this service.

Specified by:

wrappedServices in interface ServiceWrapper

Returns:

an array of wrapped services.