Package org.springframework.integration.redis.inbound

Class RedisQueueInboundGateway

java.lang.Object

org.springframework.integration.context.IntegrationObjectSupport

org.springframework.integration.endpoint.AbstractEndpoint

org.springframework.integration.gateway.MessagingGatewaySupport

org.springframework.integration.redis.inbound.RedisQueueInboundGateway

All Implemented Interfaces:

Aware, BeanClassLoaderAware, BeanFactoryAware, BeanNameAware, DisposableBean, InitializingBean, ApplicationContextAware, ApplicationEventPublisherAware, Lifecycle, Phased, SmartLifecycle, ComponentSourceAware, ExpressionCapable, IntegrationPattern, NamedComponent, IntegrationInboundManagement, IntegrationManagement, ManageableLifecycle, ManageableSmartLifecycle, TrackableComponent

@ManagedResource
@IntegrationManagedResource
public class RedisQueueInboundGateway
extends MessagingGatewaySupport
implements ApplicationEventPublisherAware, BeanClassLoaderAware

Since:

4.1

Author:

David Liu, Artem Bilan, Gary Russell, Matthias Jeschke

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.integration.gateway.MessagingGatewaySupport

MessagingGatewaySupport.ConvertingMessagingTemplate

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

IntegrationManagement.ManagementOverrides

Field Summary

Fields

Modifier and Type	Field	Description
static final long	DEFAULT_RECEIVE_TIMEOUT
static final long	DEFAULT_RECOVERY_INTERVAL

Fields inherited from class org.springframework.integration.gateway.MessagingGatewaySupport

messagingTemplate

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.integration.support.management.IntegrationManagement

METER_PREFIX, RECEIVE_COUNTER_NAME, SEND_TIMER_NAME

Fields inherited from interface org.springframework.context.SmartLifecycle

DEFAULT_PHASE

Constructor Summary

Constructors

Constructor	Description
RedisQueueInboundGateway(String queueName, RedisConnectionFactory connectionFactory)

Method Summary

Modifier and Type	Method	Description
void	clearQueue()	Clear the Redis Queue specified by boundListOperations.
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 void	doStop(Runnable callback)	Stop the component and invoke callback.
String	getComponentType()	Subclasses may implement this method to provide component type information.
long	getQueueSize()	Returns the size of the Queue specified by boundListOperations.
boolean	isListening()
protected void	onInit()	Subclasses may implement this for initialization logic.
void	setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher)
void	setBeanClassLoader(ClassLoader beanClassLoader)
void	setExtractPayload(boolean extractPayload)
void	setReceiveTimeout(long receiveTimeout)	This timeout (milliseconds) is used when retrieving elements from the queue specified by boundListOperations.
void	setRecoveryInterval(long recoveryInterval)
void	setSerializer(RedisSerializer<?> serializer)
void	setTaskExecutor(Executor taskExecutor)

Methods inherited from class org.springframework.integration.gateway.MessagingGatewaySupport

buildErrorMessage, buildSendTimer, destroy, getErrorChannel, getErrorMessageAttributes, getErrorMessageStrategy, getIntegrationPatternType, getManagedName, getManagedType, getOverrides, getReplyChannel, getRequestChannel, isLoggingEnabled, isObserved, receive, receive, receiveMessage, receiveMessage, registerMetricsCaptor, registerObservationRegistry, registerReplyMessageCorrelatorIfNecessary, send, sendAndReceive, sendAndReceiveMessage, sendAndReceiveMessageReactive, sendTimer, setErrorChannel, setErrorChannelName, setErrorMessageStrategy, setErrorOnTimeout, setLoggingEnabled, setManagedName, setManagedType, setObservationConvention, setReceiverObservationConvention, setReplyChannel, setReplyChannelName, setReplyMapper, setReplyTimeout, setRequestChannel, setRequestChannelName, setRequestMapper, setRequestTimeout, setShouldTrack

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

getPhase, getRole, isActive, isAutoStartup, isRunning, setAutoStartup, setPhase, setRole, start, stop, stop

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

afterPropertiesSet, extractTypeIfPossible, generateId, getApplicationContext, getApplicationContextId, getBeanDescription, getBeanFactory, getBeanName, getChannelResolver, getComponentDescription, getComponentName, getComponentSource, getConversionService, getExpression, getIntegrationProperties, getMessageBuilderFactory, getTaskScheduler, isInitialized, setApplicationContext, setBeanFactory, setBeanName, setChannelResolver, setComponentDescription, setComponentName, setComponentSource, 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 org.springframework.integration.support.management.IntegrationManagement

getThisAs

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

getBeanName, getComponentName

Field Details

DEFAULT_RECEIVE_TIMEOUT

public static final long DEFAULT_RECEIVE_TIMEOUT

See Also:

• Constant Field Values

DEFAULT_RECOVERY_INTERVAL

public static final long DEFAULT_RECOVERY_INTERVAL

See Also:

• Constant Field Values

Constructor Details

RedisQueueInboundGateway

public RedisQueueInboundGateway(String queueName,
 RedisConnectionFactory connectionFactory)

Parameters:

queueName - Must not be an empty String

connectionFactory - Must not be null

Method Details

setExtractPayload

public void setExtractPayload(boolean extractPayload)

setApplicationEventPublisher

public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher)

Specified by:

setApplicationEventPublisher in interface ApplicationEventPublisherAware

setBeanClassLoader

public void setBeanClassLoader(ClassLoader beanClassLoader)

Specified by:

setBeanClassLoader in interface BeanClassLoaderAware

setSerializer

public void setSerializer(RedisSerializer<?> serializer)

setReceiveTimeout

public void setReceiveTimeout(long receiveTimeout)

This timeout (milliseconds) is used when retrieving elements from the queue specified by boundListOperations.

If the queue does contain elements, the data is retrieved immediately. However, if the queue is empty, the Redis connection is blocked until either an element can be retrieved from the queue or until the specified timeout passes.

A timeout of zero can be used to block indefinitely. If not set explicitly the timeout value will default to 1000

See also: https://redis.io/commands/brpop

Parameters:

receiveTimeout - Must be non-negative. Specified in milliseconds.

setTaskExecutor

public void setTaskExecutor(Executor taskExecutor)

setRecoveryInterval

public void setRecoveryInterval(long recoveryInterval)

onInit

protected void onInit()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this for initialization logic.

Overrides:

onInit in class MessagingGatewaySupport

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 MessagingGatewaySupport

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.

Overrides:

doStart in class MessagingGatewaySupport

doStop

protected void doStop(Runnable callback)

Description copied from class: AbstractEndpoint

Stop the component and invoke callback.

Overrides:

doStop in class AbstractEndpoint

Parameters:

callback - the Runnable to invoke.

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.

Overrides:

doStop in class MessagingGatewaySupport

isListening

public boolean isListening()

getQueueSize

@ManagedMetric
public long getQueueSize()

Returns the size of the Queue specified by boundListOperations. The queue is represented by a Redis list. If the queue does not exist 0 is returned. See also https://redis.io/commands/llen

Returns:

Size of the queue. Never negative.

clearQueue

@ManagedOperation
public void clearQueue()

Clear the Redis Queue specified by boundListOperations.