Package org.springframework.integration.jmx

Class OperationInvokingMessageHandler

java.lang.Object

org.springframework.integration.context.IntegrationObjectSupport

org.springframework.integration.handler.MessageHandlerSupport

org.springframework.integration.handler.AbstractMessageHandler

org.springframework.integration.handler.AbstractMessageProducingHandler

org.springframework.integration.handler.AbstractReplyProducingMessageHandler

org.springframework.integration.jmx.OperationInvokingMessageHandler

All Implemented Interfaces:

org.reactivestreams.Subscriber<Message<?>>, Aware, BeanClassLoaderAware, BeanFactoryAware, BeanNameAware, DisposableBean, InitializingBean, ApplicationContextAware, Ordered, ExpressionCapable, Orderable, MessageProducer, HeaderPropagationAware, IntegrationPattern, NamedComponent, IntegrationManagement, TrackableComponent, MessageHandler, reactor.core.CoreSubscriber<Message<?>>

public class OperationInvokingMessageHandler
extends AbstractReplyProducingMessageHandler

A MessageHandler implementation for invoking JMX operations based on the Message sent to its AbstractMessageHandler.handleMessage(Message) method. Message headers will be checked first when resolving the 'objectName' and 'operationName' to be invoked on an MBean. These values would be supplied with the Message headers defined as JmxHeaders.OBJECT_NAME and JmxHeaders.OPERATION_NAME, respectively. In either case, if no header is present, the value resolution will fallback to the defaults, if any have been configured on this instance via setObjectName(String) and setOperationName(String), respectively.

The operation parameter(s), if any, must be available within the payload of the Message being handled. If the target operation expects multiple parameters, they can be provided in either a List or Map typed payload.

Since:

2.0

Author:

Mark Fisher, Oleg Zhurakousky, Gary Russell, Artem Bilan, Trung Pham

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.integration.handler.AbstractReplyProducingMessageHandler

AbstractReplyProducingMessageHandler.RequestHandler

Nested classes/interfaces inherited from interface org.springframework.integration.support.management.IntegrationManagement

IntegrationManagement.ManagementOverrides

Field Summary

Fields inherited from class org.springframework.integration.handler.AbstractMessageProducingHandler

messagingTemplate

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

EXPRESSION_PARSER, logger

Fields inherited from interface org.springframework.integration.support.management.IntegrationManagement

METER_PREFIX, RECEIVE_COUNTER_NAME, SEND_TIMER_NAME

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor	Description
OperationInvokingMessageHandler(MBeanServerConnection server)	Construct an instance based on the provided MBeanServerConnection.

Method Summary

Modifier and Type	Method	Description
String	getComponentType()	Subclasses may implement this method to provide component type information.
IntegrationPatternType	getIntegrationPatternType()	Return a pattern type this component implements.
protected Object	handleRequestMessage(Message<?> requestMessage)	Subclasses must implement this method to handle the request Message.
void	setExpectReply(boolean expectReply)	Specify whether a reply Message is expected.
void	setObjectName(String objectName)	Specify a default ObjectName to use when no such header is available on the Message being handled.
void	setOperationName(String operationName)	Specify an operation name to be invoked when no such header is available on the Message being handled.

Methods inherited from class org.springframework.integration.handler.AbstractReplyProducingMessageHandler

doInit, doInvokeAdvisedRequestHandler, getBeanClassLoader, getRequiresReply, handleMessageInternal, hasAdviceChain, onInit, setAdviceChain, setBeanClassLoader, setRequiresReply

Methods inherited from class org.springframework.integration.handler.AbstractMessageProducingHandler

addNotPropagatedHeaders, createOutputMessage, getNotPropagatedHeaders, getOutputChannel, isAsync, messageBuilderForReply, produceOutput, resolveErrorChannel, sendErrorMessage, sendOutput, sendOutputs, setAsync, setNotPropagatedHeaders, setOutputChannel, setOutputChannelName, setSendTimeout, shouldCopyRequestHeaders, shouldSplitOutput, updateNotPropagatedHeaders

Methods inherited from class org.springframework.integration.handler.AbstractMessageHandler

handleMessage, onComplete, onError, onNext, onSubscribe

Methods inherited from class org.springframework.integration.handler.MessageHandlerSupport

buildSendTimer, destroy, getManagedName, getManagedType, getMetricsCaptor, getOrder, getOverrides, isLoggingEnabled, registerMetricsCaptor, sendTimer, setLoggingEnabled, setManagedName, setManagedType, setOrder, setShouldTrack, shouldTrack

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

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface reactor.core.CoreSubscriber

currentContext

Methods inherited from interface org.springframework.integration.support.management.IntegrationManagement

getThisAs

Methods inherited from interface org.springframework.integration.support.context.NamedComponent

getBeanName, getComponentName

Constructor Details

OperationInvokingMessageHandler

public OperationInvokingMessageHandler(MBeanServerConnection server)

Construct an instance based on the provided MBeanServerConnection.

Parameters:

server - the MBeanServerConnection to use.

Since:

4.3.20

Method Details

setObjectName

public void setObjectName(String objectName)

Specify a default ObjectName to use when no such header is available on the Message being handled.

Parameters:

objectName - The object name.

setOperationName

public void setOperationName(String operationName)

Specify an operation name to be invoked when no such header is available on the Message being handled.

Parameters:

operationName - The operation name.

setExpectReply

public void setExpectReply(boolean expectReply)

Specify whether a reply Message is expected. If not, this handler will simply return null for a successful response or throw an Exception for a non-successful response. The default is true.

Parameters:

expectReply - true if a reply is expected.

Since:

4.3.20

getComponentType

public String getComponentType()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this method to provide component type information.

Specified by:

getComponentType in interface NamedComponent

Overrides:

getComponentType in class MessageHandlerSupport

getIntegrationPatternType

public IntegrationPatternType getIntegrationPatternType()

Description copied from interface: IntegrationPattern

Return a pattern type this component implements.

Specified by:

getIntegrationPatternType in interface IntegrationPattern

Overrides:

getIntegrationPatternType in class AbstractReplyProducingMessageHandler

Returns:

the IntegrationPatternType this component implements.

handleRequestMessage

protected Object handleRequestMessage(Message<?> requestMessage)

Description copied from class: AbstractReplyProducingMessageHandler

Subclasses must implement this method to handle the request Message. The return value may be a Message, a MessageBuilder, or any plain Object. The base class will handle the final creation of a reply Message from any of those starting points. If the return value is null, the Message flow will end here.

Specified by:

handleRequestMessage in class AbstractReplyProducingMessageHandler

Parameters:

requestMessage - The request message.

Returns:

The result of handling the message, or null.