Class AbstractRequestHandlerAdvice
java.lang.Object
org.springframework.integration.context.IntegrationObjectSupport
org.springframework.integration.handler.advice.AbstractRequestHandlerAdvice
- All Implemented Interfaces:
Advice
,Interceptor
,MethodInterceptor
,Aware
,BeanFactoryAware
,BeanNameAware
,InitializingBean
,ApplicationContextAware
,ExpressionCapable
,NamedComponent
- Direct Known Subclasses:
CacheRequestHandlerAdvice
,ExpressionEvaluatingRequestHandlerAdvice
,RateLimiterRequestHandlerAdvice
,RequestHandlerCircuitBreakerAdvice
,RequestHandlerRetryAdvice
public abstract class AbstractRequestHandlerAdvice
extends IntegrationObjectSupport
implements MethodInterceptor
Base class for
MessageHandler
advice classes. Subclasses should provide an
implementation for doInvoke(ExecutionCallback, Object, Message)
. Used to
advise the handleRequestMessage method for
AbstractReplyProducingMessageHandler
or
MessageHandler.handleMessage(Message)
for other message handlers.- Since:
- 2.2
- Author:
- Gary Russell, Artem Bilan
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Nested Class Summary
Modifier and TypeClassDescriptionprotected static interface
Called by subclasses in doInvoke() to proceed() the invocation.protected static final class
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Field Summary
Fields inherited from class org.springframework.integration.context.IntegrationObjectSupport
EXPRESSION_PARSER, logger
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionprotected abstract Object
doInvoke
(AbstractRequestHandlerAdvice.ExecutionCallback callback, Object target, Message<?> message) Subclasses implement this method to apply behavior to theMessageHandler
.final Object
invoke
(MethodInvocation invocation) protected Exception
Unwrap the cause of aAbstractRequestHandlerAdvice.ThrowableHolderException
.protected Throwable
Unwrap the cause of aAbstractRequestHandlerAdvice.ThrowableHolderException
.Methods inherited from class org.springframework.integration.context.IntegrationObjectSupport
afterPropertiesSet, extractTypeIfPossible, generateId, getApplicationContext, getApplicationContextId, getBeanDescription, getBeanFactory, getBeanName, getChannelResolver, getComponentName, getComponentType, getConversionService, getExpression, getIntegrationProperties, getIntegrationProperty, getMessageBuilderFactory, getTaskScheduler, isInitialized, onInit, setApplicationContext, setBeanFactory, setBeanName, setChannelResolver, setComponentName, setConversionService, setMessageBuilderFactory, setPrimaryExpression, setTaskScheduler, toString
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Constructor Details
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AbstractRequestHandlerAdvice
public AbstractRequestHandlerAdvice()
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Method Details
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invoke
- Specified by:
invoke
in interfaceMethodInterceptor
- Throws:
Throwable
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doInvoke
protected abstract Object doInvoke(AbstractRequestHandlerAdvice.ExecutionCallback callback, Object target, Message<?> message) Subclasses implement this method to apply behavior to theMessageHandler
.callback.execute() invokes the handler method and returns its result, or null.
- Parameters:
callback
- Subclasses invoke the execute() method on this interface to invoke the handler method.target
- The target handler.message
- The message that will be sent to the handler.- Returns:
- the result after invoking the
MessageHandler
.
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unwrapExceptionIfNecessary
Unwrap the cause of aAbstractRequestHandlerAdvice.ThrowableHolderException
.- Parameters:
e
- The exception.- Returns:
- The cause, or e, if not a
AbstractRequestHandlerAdvice.ThrowableHolderException
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unwrapThrowableIfNecessary
Unwrap the cause of aAbstractRequestHandlerAdvice.ThrowableHolderException
.- Parameters:
e
- The exception.- Returns:
- The cause, or e, if not a
AbstractRequestHandlerAdvice.ThrowableHolderException
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