Package io.awspring.cloud.sqs.listener

Class AbstractPipelineMessageListenerContainer<T,O extends ContainerOptions<O,B>,B extends ContainerOptionsBuilder<B,O>>

java.lang.Object

io.awspring.cloud.sqs.listener.AbstractMessageListenerContainer<T,O,B>

io.awspring.cloud.sqs.listener.AbstractPipelineMessageListenerContainer<T,O,B>

All Implemented Interfaces:

MessageListenerContainer<T>, Lifecycle, Phased, SmartLifecycle

Direct Known Subclasses:

SqsMessageListenerContainer

public abstract class AbstractPipelineMessageListenerContainer<T,O extends ContainerOptions<O,B>,B extends ContainerOptionsBuilder<B,O>>
extends AbstractMessageListenerContainer<T,O,B>

Base MessageListenerContainer implementation for managing Message instances' lifecycles.

This container uses a MessageSource to create the Message instances, which are forwarded to a MessageSink and finally emitted to a MessageProcessingPipeline.

The pipeline has several stages for processing the messages and executing logic in components such as AsyncMessageListener, AsyncErrorHandler and AsyncMessageInterceptor.

Such components are created by the ContainerComponentFactory and the container manages their lifecycles.

Components and ContainerOptions can be changed at runtime and such changes will be valid upon container restart.

Since:

3.0

Author:

Tomaz Fernandes

Field Summary

Fields inherited from interface io.awspring.cloud.sqs.listener.MessageListenerContainer

DEFAULT_PHASE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractPipelineMessageListenerContainer(O options)

Method Summary

Modifier and Type	Method	Description
protected void	configureContainerComponents()
protected void	configureMessageSink(MessageProcessingPipeline<T> messageProcessingPipeline)
protected void	configureMessageSources(ContainerComponentFactory<T,O> componentFactory)
protected BackPressureHandler	createBackPressureHandler()
protected abstract Collection<ContainerComponentFactory<T,O>>	createDefaultComponentFactories()
protected MessageProcessingPipeline<T>	createMessageProcessingPipeline(ContainerComponentFactory<T,O> componentFactory)
protected MessageSource<T>	createMessageSource(String queueName, int index, ContainerComponentFactory<T,O> componentFactory)
protected Collection<MessageSource<T>>	createMessageSources(ContainerComponentFactory<T,O> componentFactory)
protected TaskExecutor	createSourcesTaskExecutor()
protected TaskExecutor	createTaskExecutor()
protected ThreadFactory	createThreadFactory()
protected void	doConfigureMessageSink(MessageSink<T> messageSink)
protected void	doConfigureMessageSources(Collection<MessageSource<T>> messageSources)
protected void	doStart()
protected void	doStop()
protected TaskExecutor	getAcknowledgementResultTaskExecutor()
protected TaskExecutor	getComponentsTaskExecutor()

Methods inherited from class io.awspring.cloud.sqs.listener.AbstractMessageListenerContainer

addMessageInterceptor, addMessageInterceptor, configure, getAcknowledgementResultCallback, getContainerComponentFactories, getContainerOptions, getErrorHandler, getId, getMessageInterceptors, getMessageListener, getPhase, getQueueNames, isAutoStartup, isRunning, setAcknowledgementResultCallback, setAcknowledgementResultCallback, setAsyncMessageListener, setComponentFactories, setErrorHandler, setErrorHandler, setId, setMessageListener, setPhase, setQueueNames, setQueueNames, start, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.context.SmartLifecycle

stop

Constructor Details

AbstractPipelineMessageListenerContainer

protected AbstractPipelineMessageListenerContainer(O options)

Method Details

doStart

protected void doStart()

Overrides:

doStart in class AbstractMessageListenerContainer<T,O extends ContainerOptions<O,B>,B extends ContainerOptionsBuilder<B,O>>

createDefaultComponentFactories

protected abstract Collection<ContainerComponentFactory<T,O>> createDefaultComponentFactories()

createMessageSources

protected Collection<MessageSource<T>> createMessageSources(ContainerComponentFactory<T,O> componentFactory)

createMessageSource

protected MessageSource<T> createMessageSource(String queueName,
 int index,
 ContainerComponentFactory<T,O> componentFactory)

configureMessageSources

protected void configureMessageSources(ContainerComponentFactory<T,O> componentFactory)

doConfigureMessageSources

protected void doConfigureMessageSources(Collection<MessageSource<T>> messageSources)

configureMessageSink

protected void configureMessageSink(MessageProcessingPipeline<T> messageProcessingPipeline)

doConfigureMessageSink

protected void doConfigureMessageSink(MessageSink<T> messageSink)

configureContainerComponents

protected void configureContainerComponents()

createMessageProcessingPipeline

protected MessageProcessingPipeline<T> createMessageProcessingPipeline(ContainerComponentFactory<T,O> componentFactory)

createBackPressureHandler

protected BackPressureHandler createBackPressureHandler()

createSourcesTaskExecutor

protected TaskExecutor createSourcesTaskExecutor()

createTaskExecutor

protected TaskExecutor createTaskExecutor()

createThreadFactory

protected ThreadFactory createThreadFactory()

doStop

protected void doStop()

Overrides:

doStop in class AbstractMessageListenerContainer<T,O extends ContainerOptions<O,B>,B extends ContainerOptionsBuilder<B,O>>

getComponentsTaskExecutor

protected TaskExecutor getComponentsTaskExecutor()

getAcknowledgementResultTaskExecutor

protected TaskExecutor getAcknowledgementResultTaskExecutor()