Package org.springframework.amqp.rabbit

Class AsyncRabbitTemplate

java.lang.Object

org.springframework.amqp.rabbit.AsyncRabbitTemplate

All Implemented Interfaces:

AsyncAmqpTemplate, MessageListener, RabbitTemplate.ConfirmCallback, RabbitTemplate.ReturnCallback, RabbitTemplate.ReturnsCallback, ChannelAwareMessageListener, Aware, BeanNameAware, Lifecycle, Phased, SmartLifecycle

public class AsyncRabbitTemplate
extends Object
implements AsyncAmqpTemplate, ChannelAwareMessageListener, RabbitTemplate.ReturnsCallback, RabbitTemplate.ConfirmCallback, BeanNameAware, SmartLifecycle

Provides asynchronous send and receive operations returning a ListenableFuture allowing the caller to obtain the reply later, using get() or a callback.

When confirms are enabled, the future has a confirm property which is itself a ListenableFuture. If the reply is received before the publisher confirm, the confirm is discarded since the reply implicitly indicates the message was published.

Returned (undeliverable) request messages are presented as a AmqpMessageReturnedException cause of an ExecutionException.

Internally, the template uses a RabbitTemplate and an AbstractMessageListenerContainer either provided or constructed internally (a SimpleMessageListenerContainer). If an external RabbitTemplate is provided and confirms/returns are enabled, it must not previously have had callbacks registered because this object needs to be the callback.

Since:

1.6

Author:

Gary Russell, Artem Bilan

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	AsyncRabbitTemplate.RabbitConverterFuture<C>	A AsyncRabbitTemplate.RabbitFuture with a return type of the template's generic parameter.
class	AsyncRabbitTemplate.RabbitFuture<T>	Base class for ListenableFutures returned by AsyncRabbitTemplate.
class	AsyncRabbitTemplate.RabbitMessageFuture	A AsyncRabbitTemplate.RabbitFuture with a return type of Message.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_RECEIVE_TIMEOUT

Fields inherited from interface org.springframework.context.SmartLifecycle

DEFAULT_PHASE

Constructor Summary

Constructors

Constructor	Description
AsyncRabbitTemplate(ConnectionFactory connectionFactory, String exchange, String routingKey)	Construct an instance using the provided arguments.
AsyncRabbitTemplate(ConnectionFactory connectionFactory, String exchange, String routingKey, String replyQueue)	Construct an instance using the provided arguments.
AsyncRabbitTemplate(ConnectionFactory connectionFactory, String exchange, String routingKey, String replyQueue, String replyAddress)	Construct an instance using the provided arguments.
AsyncRabbitTemplate(RabbitTemplate template)	Construct an instance using the provided arguments.
AsyncRabbitTemplate(RabbitTemplate template, AbstractMessageListenerContainer container)	Construct an instance using the provided arguments.
AsyncRabbitTemplate(RabbitTemplate template, AbstractMessageListenerContainer container, String replyAddress)	Construct an instance using the provided arguments.

Method Summary

Modifier and Type	Method	Description
void	confirm(CorrelationData correlationData, boolean ack, String cause)	Confirmation callback.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceive(Object object)	Convert the object to a message and send it to the default exchange with the default routing key.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceive(Object object, MessagePostProcessor messagePostProcessor)	Convert the object to a message and send it to the default exchange with the default routing key after invoking the MessagePostProcessor.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceive(String routingKey, Object object)	Convert the object to a message and send it to the default exchange with the provided routing key.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceive(String routingKey, Object object, MessagePostProcessor messagePostProcessor)	Convert the object to a message and send it to the default exchange with the provided routing key after invoking the MessagePostProcessor.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceive(String exchange, String routingKey, Object object)	Convert the object to a message and send it to the provided exchange and routing key.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceive(String exchange, String routingKey, Object object, MessagePostProcessor messagePostProcessor)	Convert the object to a message and send it to the provided exchange and routing key after invoking the MessagePostProcessor.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceiveAsType(Object object, MessagePostProcessor messagePostProcessor, ParameterizedTypeReference<C> responseType)	Convert the object to a message and send it to the default exchange with the default routing key after invoking the MessagePostProcessor.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceiveAsType(Object object, ParameterizedTypeReference<C> responseType)	Convert the object to a message and send it to the default exchange with the default routing key.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceiveAsType(String routingKey, Object object, MessagePostProcessor messagePostProcessor, ParameterizedTypeReference<C> responseType)	Convert the object to a message and send it to the default exchange with the provided routing key after invoking the MessagePostProcessor.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceiveAsType(String routingKey, Object object, ParameterizedTypeReference<C> responseType)	Convert the object to a message and send it to the default exchange with the provided routing key.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceiveAsType(String exchange, String routingKey, Object object, MessagePostProcessor messagePostProcessor, ParameterizedTypeReference<C> responseType)	Convert the object to a message and send it to the provided exchange and routing key after invoking the MessagePostProcessor.
<C> AsyncRabbitTemplate.RabbitConverterFuture<C>	convertSendAndReceiveAsType(String exchange, String routingKey, Object object, ParameterizedTypeReference<C> responseType)	Convert the object to a message and send it to the provided exchange and routing key.
String	getBeanName()
ConnectionFactory	getConnectionFactory()
MessageConverter	getMessageConverter()
int	getPhase()
RabbitTemplate	getRabbitTemplate()	Return the underlying RabbitTemplate used for sending.
boolean	isAutoStartup()
boolean	isRunning()
void	onMessage(Message message, com.rabbitmq.client.Channel channel)	Callback for processing a received Rabbit message.
void	returnedMessage(ReturnedMessage returned)	Returned message callback.
AsyncRabbitTemplate.RabbitMessageFuture	sendAndReceive(String exchange, String routingKey, Message message)	Send a message to the supplied exchange and routing key.
AsyncRabbitTemplate.RabbitMessageFuture	sendAndReceive(String routingKey, Message message)	Send a message to the default exchange with the supplied routing key.
AsyncRabbitTemplate.RabbitMessageFuture	sendAndReceive(Message message)	Send a message to the default exchange with the default routing key.
void	setAutoStartup(boolean autoStartup)
void	setBeanName(String beanName)
void	setEnableConfirms(boolean enableConfirms)	Set to true to enable publisher confirms.
void	setMandatory(boolean mandatory)	Set to true to enable the receipt of returned messages that cannot be delivered in the form of a AmqpMessageReturnedException.
void	setMandatoryExpression(Expression mandatoryExpression)
void	setMandatoryExpressionString(String mandatoryExpression)
void	setPhase(int phase)
void	setReceiveTimeout(long receiveTimeout)	Set the receive timeout - the future returned by the send and receive methods will be canceled when this timeout expires.
void	setTaskScheduler(TaskScheduler taskScheduler)	Set the task scheduler to expire timed out futures.
void	start()
void	stop()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.amqp.rabbit.listener.api.ChannelAwareMessageListener

onMessage, onMessageBatch

Methods inherited from interface org.springframework.amqp.core.MessageListener

containerAckMode, isAsyncReplies, onMessageBatch

Methods inherited from interface org.springframework.amqp.rabbit.core.RabbitTemplate.ReturnsCallback

delegate, returnedMessage

Methods inherited from interface org.springframework.context.SmartLifecycle

stop

Field Details

DEFAULT_RECEIVE_TIMEOUT

public static final int DEFAULT_RECEIVE_TIMEOUT

See Also:

• Constant Field Values

Constructor Details

AsyncRabbitTemplate

public AsyncRabbitTemplate(ConnectionFactory connectionFactory,
 String exchange,
 String routingKey,
 String replyQueue)

Construct an instance using the provided arguments. Replies will be routed to the default exchange using the reply queue name as the routing key.

Parameters:

connectionFactory - the connection factory.

exchange - the default exchange to which requests will be sent.

routingKey - the default routing key.

replyQueue - the name of the reply queue to listen for replies.

AsyncRabbitTemplate

public AsyncRabbitTemplate(ConnectionFactory connectionFactory,
 String exchange,
 String routingKey,
 String replyQueue,
 String replyAddress)

Construct an instance using the provided arguments. If 'replyAddress' is null, replies will be routed to the default exchange using the reply queue name as the routing key. Otherwise it should have the form exchange/routingKey and must cause messages to be routed to the reply queue.

Parameters:

connectionFactory - the connection factory.

exchange - the default exchange to which requests will be sent.

routingKey - the default routing key.

replyQueue - the name of the reply queue to listen for replies.

replyAddress - the reply address (exchange/routingKey).

AsyncRabbitTemplate

public AsyncRabbitTemplate(RabbitTemplate template,
 AbstractMessageListenerContainer container)

Construct an instance using the provided arguments. The first queue the container is configured to listen to will be used as the reply queue. Replies will be routed using the default exchange with that queue name as the routing key.

Parameters:

template - a RabbitTemplate

container - a AbstractMessageListenerContainer.

AsyncRabbitTemplate

public AsyncRabbitTemplate(RabbitTemplate template,
 AbstractMessageListenerContainer container,
 String replyAddress)

Construct an instance using the provided arguments. The first queue the container is configured to listen to will be used as the reply queue. If 'replyAddress' is null, replies will be routed using the default exchange with that queue name as the routing key. Otherwise it should have the form exchange/routingKey and must cause messages to be routed to the reply queue.

Parameters:

template - a RabbitTemplate.

container - a AbstractMessageListenerContainer.

replyAddress - the reply address.

AsyncRabbitTemplate

public AsyncRabbitTemplate(ConnectionFactory connectionFactory,
 String exchange,
 String routingKey)

Construct an instance using the provided arguments. "Direct replyTo" is used for replies.

Parameters:

connectionFactory - the connection factory.

exchange - the default exchange to which requests will be sent.

routingKey - the default routing key.

Since:

2.0

AsyncRabbitTemplate

public AsyncRabbitTemplate(RabbitTemplate template)

Construct an instance using the provided arguments. "Direct replyTo" is used for replies.

Parameters:

template - a RabbitTemplate

Since:

2.0

Method Details

setAutoStartup

public void setAutoStartup(boolean autoStartup)

Parameters:

autoStartup - true for auto start.

See Also:

• isAutoStartup()

setPhase

public void setPhase(int phase)

Parameters:

phase - the phase.

See Also:

• getPhase()

setMandatory

public void setMandatory(boolean mandatory)

Set to true to enable the receipt of returned messages that cannot be delivered in the form of a AmqpMessageReturnedException.

Parameters:

mandatory - true to enable returns.

setMandatoryExpression

public void setMandatoryExpression(Expression mandatoryExpression)

Parameters:

mandatoryExpression - a SpEL Expression to evaluate against each request message. The result of the evaluation must be a boolean value.

Since:

2.0

setMandatoryExpressionString

public void setMandatoryExpressionString(String mandatoryExpression)

Parameters:

mandatoryExpression - a SpEL Expression to evaluate against each request message. The result of the evaluation must be a boolean value.

Since:

2.0

setEnableConfirms

public void setEnableConfirms(boolean enableConfirms)

Set to true to enable publisher confirms. When enabled, the AsyncRabbitTemplate.RabbitFuture returned by the send and receive operation will have a ListenableFuture<Boolean> in its confirm property.

Parameters:

enableConfirms - true to enable publisher confirms.

getBeanName

public String getBeanName()

setBeanName

public void setBeanName(String beanName)

Specified by:

setBeanName in interface BeanNameAware

getConnectionFactory

public ConnectionFactory getConnectionFactory()

Returns:

a reference to the underlying connection factory in the RabbitTemplate.

setReceiveTimeout

public void setReceiveTimeout(long receiveTimeout)

Set the receive timeout - the future returned by the send and receive methods will be canceled when this timeout expires. <= 0 means futures never expire. Beware that this will cause a memory leak if a reply is not received. Default: 30000 (30 seconds).

Parameters:

receiveTimeout - the timeout in milliseconds.

setTaskScheduler

public void setTaskScheduler(TaskScheduler taskScheduler)

Set the task scheduler to expire timed out futures.

Parameters:

taskScheduler - the task scheduler

See Also:

• setReceiveTimeout(long)

getMessageConverter

public MessageConverter getMessageConverter()

Returns:

a reference to the underlying RabbitTemplate's MessageConverter.

getRabbitTemplate

public RabbitTemplate getRabbitTemplate()

Return the underlying RabbitTemplate used for sending.

Returns:

the template.

Since:

2.2

sendAndReceive

public AsyncRabbitTemplate.RabbitMessageFuture sendAndReceive(Message message)

Description copied from interface: AsyncAmqpTemplate

Send a message to the default exchange with the default routing key. If the message contains a correlationId property, it must be unique.

Specified by:

sendAndReceive in interface AsyncAmqpTemplate

Parameters:

message - the message.

Returns:

the ListenableFuture.

sendAndReceive

public AsyncRabbitTemplate.RabbitMessageFuture sendAndReceive(String routingKey,
 Message message)

Description copied from interface: AsyncAmqpTemplate

Send a message to the default exchange with the supplied routing key. If the message contains a correlationId property, it must be unique.

Specified by:

sendAndReceive in interface AsyncAmqpTemplate

Parameters:

routingKey - the routing key.

message - the message.

Returns:

the ListenableFuture.

sendAndReceive

public AsyncRabbitTemplate.RabbitMessageFuture sendAndReceive(String exchange,
 String routingKey,
 Message message)

Description copied from interface: AsyncAmqpTemplate

Send a message to the supplied exchange and routing key. If the message contains a correlationId property, it must be unique.

Specified by:

sendAndReceive in interface AsyncAmqpTemplate

Parameters:

exchange - the exchange.

routingKey - the routing key.

message - the message.

Returns:

the ListenableFuture.

convertSendAndReceive

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceive(Object object)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the default exchange with the default routing key.

Specified by:

convertSendAndReceive in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

object - the object to convert.

Returns:

the ListenableFuture.

convertSendAndReceive

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceive(String routingKey,
 Object object)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the default exchange with the provided routing key.

Specified by:

convertSendAndReceive in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

routingKey - the routing key.

object - the object to convert.

Returns:

the ListenableFuture.

convertSendAndReceive

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceive(String exchange,
 String routingKey,
 Object object)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the provided exchange and routing key.

Specified by:

convertSendAndReceive in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

exchange - the exchange.

routingKey - the routing key.

object - the object to convert.

Returns:

the ListenableFuture.

convertSendAndReceive

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceive(Object object,
 MessagePostProcessor messagePostProcessor)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the default exchange with the default routing key after invoking the MessagePostProcessor. If the post processor adds a correlationId property, it must be unique.

Specified by:

convertSendAndReceive in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

object - the object to convert.

messagePostProcessor - the post processor.

Returns:

the ListenableFuture.

convertSendAndReceive

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceive(String routingKey,
 Object object,
 MessagePostProcessor messagePostProcessor)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the default exchange with the provided routing key after invoking the MessagePostProcessor. If the post processor adds a correlationId property, it must be unique.

Specified by:

convertSendAndReceive in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

routingKey - the routing key.

object - the object to convert.

messagePostProcessor - the post processor.

Returns:

the ListenableFuture.

convertSendAndReceive

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceive(String exchange,
 String routingKey,
 Object object,
 MessagePostProcessor messagePostProcessor)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the provided exchange and routing key after invoking the MessagePostProcessor. If the post processor adds a correlationId property, it must be unique.

Specified by:

convertSendAndReceive in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

exchange - the exchange

routingKey - the routing key.

object - the object to convert.

messagePostProcessor - the post processor.

Returns:

the ListenableFuture.

convertSendAndReceiveAsType

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceiveAsType(Object object,
 ParameterizedTypeReference<C> responseType)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the default exchange with the default routing key.

Specified by:

convertSendAndReceiveAsType in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

object - the object to convert.

responseType - the response type.

Returns:

the ListenableFuture.

convertSendAndReceiveAsType

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceiveAsType(String routingKey,
 Object object,
 ParameterizedTypeReference<C> responseType)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the default exchange with the provided routing key.

Specified by:

convertSendAndReceiveAsType in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

routingKey - the routing key.

object - the object to convert.

responseType - the response type.

Returns:

the ListenableFuture.

convertSendAndReceiveAsType

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceiveAsType(String exchange,
 String routingKey,
 Object object,
 ParameterizedTypeReference<C> responseType)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the provided exchange and routing key.

Specified by:

convertSendAndReceiveAsType in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

exchange - the exchange.

routingKey - the routing key.

object - the object to convert.

responseType - the response type.

Returns:

the ListenableFuture.

convertSendAndReceiveAsType

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceiveAsType(Object object,
 MessagePostProcessor messagePostProcessor,
 ParameterizedTypeReference<C> responseType)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the default exchange with the default routing key after invoking the MessagePostProcessor. If the post processor adds a correlationId property, it must be unique.

Specified by:

convertSendAndReceiveAsType in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

object - the object to convert.

messagePostProcessor - the post processor.

responseType - the response type.

Returns:

the ListenableFuture.

convertSendAndReceiveAsType

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceiveAsType(String routingKey,
 Object object,
 MessagePostProcessor messagePostProcessor,
 ParameterizedTypeReference<C> responseType)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the default exchange with the provided routing key after invoking the MessagePostProcessor. If the post processor adds a correlationId property, it must be unique.

Specified by:

convertSendAndReceiveAsType in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

routingKey - the routing key.

object - the object to convert.

messagePostProcessor - the post processor.

responseType - the response type.

Returns:

the ListenableFuture.

convertSendAndReceiveAsType

public <C>
AsyncRabbitTemplate.RabbitConverterFuture<C> convertSendAndReceiveAsType(String exchange,
 String routingKey,
 Object object,
 MessagePostProcessor messagePostProcessor,
 ParameterizedTypeReference<C> responseType)

Description copied from interface: AsyncAmqpTemplate

Convert the object to a message and send it to the provided exchange and routing key after invoking the MessagePostProcessor. If the post processor adds a correlationId property, it must be unique.

Specified by:

convertSendAndReceiveAsType in interface AsyncAmqpTemplate

Type Parameters:

C - the expected result type.

Parameters:

exchange - the exchange

routingKey - the routing key.

object - the object to convert.

messagePostProcessor - the post processor.

responseType - the response type.

Returns:

the ListenableFuture.

start

public void start()

Specified by:

start in interface Lifecycle

stop

public void stop()

Specified by:

stop in interface Lifecycle

isRunning

public boolean isRunning()

Specified by:

isRunning in interface Lifecycle

getPhase

public int getPhase()

Specified by:

getPhase in interface Phased

Specified by:

getPhase in interface SmartLifecycle

isAutoStartup

public boolean isAutoStartup()

Specified by:

isAutoStartup in interface SmartLifecycle

onMessage

public void onMessage(Message message,
 com.rabbitmq.client.Channel channel)

Description copied from interface: ChannelAwareMessageListener

Callback for processing a received Rabbit message.

Implementors are supposed to process the given Message, typically sending reply messages through the given Session.

Specified by:

onMessage in interface ChannelAwareMessageListener

Parameters:

message - the received AMQP message (never null)

channel - the underlying Rabbit Channel (never null unless called by the stream listener container).

returnedMessage

public void returnedMessage(ReturnedMessage returned)

Description copied from interface: RabbitTemplate.ReturnsCallback

Returned message callback.

Specified by:

returnedMessage in interface RabbitTemplate.ReturnCallback

Specified by:

returnedMessage in interface RabbitTemplate.ReturnsCallback

Parameters:

returned - the returned message and metadata.

confirm

public void confirm(@NonNull
 CorrelationData correlationData,
 boolean ack,
 @Nullable
 String cause)

Description copied from interface: RabbitTemplate.ConfirmCallback

Confirmation callback.

Specified by:

confirm in interface RabbitTemplate.ConfirmCallback

Parameters:

correlationData - correlation data for the callback.

ack - true for ack, false for nack

cause - An optional cause, for nack, when available, otherwise null.

toString

public String toString()

Overrides:

toString in class Object