org.springframework.integration.endpoint

Class AbstractPollingEndpoint

java.lang.Object

org.springframework.integration.context.IntegrationObjectSupport

org.springframework.integration.endpoint.AbstractEndpoint

org.springframework.integration.endpoint.AbstractPollingEndpoint

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanClassLoaderAware, org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware, org.springframework.context.Lifecycle, org.springframework.context.Phased, org.springframework.context.SmartLifecycle, ExpressionCapable, NamedComponent

Direct Known Subclasses:

PollingConsumer, SourcePollingChannelAdapter

public abstract class AbstractPollingEndpoint
extends AbstractEndpoint
implements org.springframework.beans.factory.BeanClassLoaderAware

Author:

Mark Fisher, Oleg Zhurakousky, Gary Russell, Artem Bilan, Andreas Baer

Field Summary

Fields inherited from class org.springframework.integration.endpoint.AbstractEndpoint

lifecycleCondition, lifecycleLock

Fields inherited from class org.springframework.integration.context.IntegrationObjectSupport

EXPRESSION_PARSER, logger

Fields inherited from interface org.springframework.context.SmartLifecycle

DEFAULT_PHASE

Constructor Summary

Constructors

Constructor and Description
AbstractPollingEndpoint()

Method Summary

Modifier and Type	Method and Description
protected void	applyReceiveOnlyAdviceChain(java.util.Collection<org.aopalliance.aop.Advice> chain) Add the advice chain to the component that responds to receiveMessage() calls.
protected void	doStart() Subclasses must implement this method with the start behavior.
protected void	doStop() Subclasses must implement this method with the stop behavior.
protected java.lang.ClassLoader	getBeanClassLoader()
org.springframework.messaging.MessageChannel	getDefaultErrorChannel() Return the default error channel if the error handler is explicitly provided and it is a MessagePublishingErrorHandler.
protected java.lang.String	getResourceKey() Return the key under which the resource will be made available as an attribute on the IntegrationResourceHolder.
protected java.lang.Object	getResourceToBind() Return a resource (MessageSource etc) to bind when using transaction synchronization.
protected java.util.concurrent.Executor	getTaskExecutor()
protected abstract void	handleMessage(org.springframework.messaging.Message<?> message) Handle a message.
protected boolean	isReceiveOnlyAdvice(org.aopalliance.aop.Advice advice) Return true if this advice should be applied only to the receiveMessage() operation rather than the whole poll.
protected boolean	isSyncExecutor()
protected void	onInit() Subclasses may implement this for initialization logic.
protected abstract org.springframework.messaging.Message<?>	receiveMessage() Obtain the next message (if one is available).
void	setAdviceChain(java.util.List<org.aopalliance.aop.Advice> adviceChain)
void	setBeanClassLoader(java.lang.ClassLoader classLoader)
void	setErrorHandler(org.springframework.util.ErrorHandler errorHandler)
void	setMaxMessagesPerPoll(long maxMessagesPerPoll)
void	setTaskExecutor(java.util.concurrent.Executor taskExecutor)
void	setTransactionSynchronizationFactory(TransactionSynchronizationFactory transactionSynchronizationFactory)
void	setTrigger(org.springframework.scheduling.Trigger trigger)

Methods inherited from class org.springframework.integration.endpoint.AbstractEndpoint

destroy, doStop, getPhase, getRole, isAutoStartup, isRunning, setAutoStartup, setPhase, setRole, setTaskScheduler, start, stop, stop

Methods inherited from class org.springframework.integration.context.IntegrationObjectSupport

afterPropertiesSet, extractTypeIfPossible, getApplicationContext, getApplicationContextId, getBeanFactory, getChannelResolver, getComponentName, getComponentType, getConversionService, getExpression, getIntegrationProperties, getIntegrationProperty, getMessageBuilderFactory, getTaskScheduler, isInitialized, setApplicationContext, setBeanFactory, setBeanName, setChannelResolver, setComponentName, setConversionService, setMessageBuilderFactory, setPrimaryExpression, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractPollingEndpoint

public AbstractPollingEndpoint()

Method Detail

setTaskExecutor

public void setTaskExecutor(java.util.concurrent.Executor taskExecutor)

getTaskExecutor

protected java.util.concurrent.Executor getTaskExecutor()

isSyncExecutor

protected boolean isSyncExecutor()

setTrigger

public void setTrigger(org.springframework.scheduling.Trigger trigger)

setAdviceChain

public void setAdviceChain(java.util.List<org.aopalliance.aop.Advice> adviceChain)

setMaxMessagesPerPoll

public void setMaxMessagesPerPoll(long maxMessagesPerPoll)

setErrorHandler

public void setErrorHandler(org.springframework.util.ErrorHandler errorHandler)

setBeanClassLoader

public void setBeanClassLoader(java.lang.ClassLoader classLoader)

Specified by:

setBeanClassLoader in interface org.springframework.beans.factory.BeanClassLoaderAware

setTransactionSynchronizationFactory

public void setTransactionSynchronizationFactory(TransactionSynchronizationFactory transactionSynchronizationFactory)

getDefaultErrorChannel

public org.springframework.messaging.MessageChannel getDefaultErrorChannel()

Return the default error channel if the error handler is explicitly provided and it is a MessagePublishingErrorHandler.

Returns:

the channel or null.

Since:

4.3

getBeanClassLoader

protected java.lang.ClassLoader getBeanClassLoader()

isReceiveOnlyAdvice

protected boolean isReceiveOnlyAdvice(org.aopalliance.aop.Advice advice)

Return true if this advice should be applied only to the receiveMessage() operation rather than the whole poll.

Parameters:

advice - The advice.

Returns:

true to only advise the receive operation.

applyReceiveOnlyAdviceChain

protected void applyReceiveOnlyAdviceChain(java.util.Collection<org.aopalliance.aop.Advice> chain)

Add the advice chain to the component that responds to receiveMessage() calls.

Parameters:

chain - the advice chain Collection.

onInit

protected void onInit()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this for initialization logic.

Overrides:

onInit in class AbstractEndpoint

doStart

protected void doStart()

Description copied from class: AbstractEndpoint

Subclasses must implement this method with the start behavior. This method will be invoked while holding the AbstractEndpoint.lifecycleLock.

Specified by:

doStart in class AbstractEndpoint

doStop

protected void doStop()

Description copied from class: AbstractEndpoint

Subclasses must implement this method with the stop behavior. This method will be invoked while holding the AbstractEndpoint.lifecycleLock.

Specified by:

doStop in class AbstractEndpoint

receiveMessage

protected abstract org.springframework.messaging.Message<?> receiveMessage()

Obtain the next message (if one is available). MAY return null if no message is immediately available.

Returns:

The message or null.

handleMessage

protected abstract void handleMessage(org.springframework.messaging.Message<?> message)

Handle a message.

Parameters:

message - The message.

getResourceToBind

protected java.lang.Object getResourceToBind()

Return a resource (MessageSource etc) to bind when using transaction synchronization.

Returns:

The resource, or null if transaction synchronization is not required.

getResourceKey

protected java.lang.String getResourceKey()

Return the key under which the resource will be made available as an attribute on the IntegrationResourceHolder. The default ExpressionEvaluatingTransactionSynchronizationProcessor makes this attribute available as a variable in SpEL expressions.

Returns:

The key, or null (default) if the resource shouldn't be made available as a attribute.