org.springframework.integration.amqp.channel
Class PollableAmqpChannel

java.lang.Object
  org.springframework.integration.context.IntegrationObjectSupport
      org.springframework.integration.channel.AbstractMessageChannel
          org.springframework.integration.amqp.channel.AbstractAmqpChannel
              org.springframework.integration.amqp.channel.PollableAmqpChannel

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.InitializingBean, NamedComponent, PollableChannel, TrackableComponent, MessageChannel

public class PollableAmqpChannel
extends AbstractAmqpChannel
implements PollableChannel

A PollableChannel implementation that is backed by an AMQP Queue. Messages will be sent to the default (no-name) exchange with that Queue's name as the routing key.

Since:

2.1

Author:

Mark Fisher

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.integration.channel.AbstractMessageChannel

AbstractMessageChannel.ChannelInterceptorList

Field Summary

Fields inherited from class org.springframework.integration.channel.AbstractMessageChannel

logger

Constructor Summary

PollableAmqpChannel(java.lang.String channelName, org.springframework.amqp.core.AmqpTemplate amqpTemplate)

Method Summary

protected java.lang.String	getRoutingKey() Subclasses may override this method to return a routing key.
protected void	onInit() Subclasses may implement this for initialization logic.
Message<?>	receive() Receive a message from this channel, blocking indefinitely if necessary.
Message<?>	receive(long timeout) Receive a message from this channel, blocking until either a message is available or the specified timeout period elapses.
void	setAmqpAdmin(org.springframework.amqp.core.AmqpAdmin amqpAdmin) Provide an instance of AmqpAdmin for implicitly declaring Queues if the queueName is not provided.
void	setQueueName(java.lang.String queueName) Provide an explicitly configured queue name.

Methods inherited from class org.springframework.integration.amqp.channel.AbstractAmqpChannel

doSend, getExchangeName

Methods inherited from class org.springframework.integration.channel.AbstractMessageChannel

addInterceptor, getComponentType, getInterceptors, send, send, setConversionService, setDatatypes, setInterceptors, setShouldTrack

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

afterPropertiesSet, getBeanFactory, getComponentName, getConversionService, getTaskScheduler, setBeanFactory, setBeanName, setComponentName, 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.MessageChannel

send, send

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

getComponentName

Constructor Detail

PollableAmqpChannel

public PollableAmqpChannel(java.lang.String channelName,
                           org.springframework.amqp.core.AmqpTemplate amqpTemplate)

Method Detail

setQueueName

public void setQueueName(java.lang.String queueName)

Provide an explicitly configured queue name. If this is not provided, then a Queue will be created implicitly with the channelName as its name. The implicit creation will require that either an AmqpAdmin instance has been provided or that the configured AmqpTemplate is an instance of RabbitTemplate.

setAmqpAdmin

public void setAmqpAdmin(org.springframework.amqp.core.AmqpAdmin amqpAdmin)

Provide an instance of AmqpAdmin for implicitly declaring Queues if the queueName is not provided. When providing a RabbitTemplate implementation, this is not strictly necessary since a RabbitAdmin instance can be created from the template's ConnectionFactory reference.

onInit

protected void onInit()
               throws java.lang.Exception

Description copied from class: IntegrationObjectSupport

Subclasses may implement this for initialization logic.

Overrides:

onInit in class IntegrationObjectSupport

Throws:

java.lang.Exception

getRoutingKey

protected java.lang.String getRoutingKey()

Description copied from class: AbstractAmqpChannel

Subclasses may override this method to return a routing key. By default, there will be no routing key (empty string).

Overrides:

getRoutingKey in class AbstractAmqpChannel

receive

public Message<?> receive()

Description copied from interface: PollableChannel

Receive a message from this channel, blocking indefinitely if necessary.

Specified by:

receive in interface PollableChannel

Returns:

the next available Message or null if interrupted

receive

public Message<?> receive(long timeout)

Description copied from interface: PollableChannel

Receive a message from this channel, blocking until either a message is available or the specified timeout period elapses.

Specified by:

receive in interface PollableChannel

Parameters:

timeout - the timeout in milliseconds

Returns:

the next available Message or null if the specified timeout period elapses or the message reception is interrupted