org.springframework.amqp.core.MessageListener Java Examples

The following examples show how to use org.springframework.amqp.core.MessageListener. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: Issue178ListenerConfiguration.java    From spring-cloud-contract with Apache License 2.0 6 votes vote down vote up 
@Bean
MessageListener exampleListener(final RabbitTemplate rabbitTemplate) {
	return new MessageListener() {
		public void onMessage(Message message) {
			System.out.println("received: " + message);
			try {
				String payload = new ObjectMapper().writeValueAsString(new MyPojo(
						"992e46d8-ab05-4a26-a740-6ef7b0daeab3", "CREATED"));
				Message outputMessage = MessageBuilder.withBody(payload.getBytes())
						.build();
				rabbitTemplate.send(issue178OutputExchange().getName(), "routingkey",
						outputMessage);
			}
			catch (JsonProcessingException e) {
				throw new RuntimeException(e);
			}
		}
	};
}
Example #2
Source File: SpringAmqpStubMessages.java    From spring-cloud-contract with Apache License 2.0 6 votes vote down vote up 
@Override
public void send(Message message, String destination) {
	final String routingKey = message.getMessageProperties().getReceivedRoutingKey();
	List<SimpleMessageListenerContainer> listenerContainers = this.messageListenerAccessor
			.getListenerContainersForDestination(destination, routingKey);
	if (listenerContainers.isEmpty()) {
		throw new IllegalStateException(
				"no listeners found for destination " + destination);
	}
	for (SimpleMessageListenerContainer listenerContainer : listenerContainers) {
		Object messageListener = listenerContainer.getMessageListener();
		if (isChannelAwareListener(listenerContainer, messageListener)) {
			try {
				((ChannelAwareMessageListener) messageListener).onMessage(message,
						createChannel(listenerContainer, transactionalChannel()));
			}
			catch (Exception e) {
				throw new RuntimeException(e);
			}
		}
		else {
			((MessageListener) messageListener).onMessage(message);
		}
	}
}
Example #3
Source File: MessageListenerProxy.java    From elastic-rabbitmq with MIT License 4 votes vote down vote up 
public MessageListenerProxy(MessageListener listener, String jobName) {
    this.delegate = listener;
    this.jobName = jobName;
}
Example #4
Source File: RabbitChannelDefinitionProcessor.java    From flowable-engine with Apache License 2.0 4 votes vote down vote up 
protected MessageListener createMessageListener(EventRegistry eventRegistry, InboundChannelModel inboundChannelModel) {
    return new RabbitChannelMessageListenerAdapter(eventRegistry, inboundChannelModel);
}
Example #5
Source File: AmqpReactiveController.java    From tutorials with MIT License 4 votes vote down vote up 
/**
 * Receive messages for the given queue
 * @param name
 * @param errorHandler 
 * @return
 */
@GetMapping(value = "/queue/{name}", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
public Flux<?> receiveMessagesFromQueue(@PathVariable String name) {

    DestinationsConfig.DestinationInfo d = destinationsConfig.getQueues()
        .get(name);

    if (d == null) {
        return Flux.just(ResponseEntity.notFound()
            .build());
    }

    MessageListenerContainer mlc = messageListenerContainerFactory.createMessageListenerContainer(d.getRoutingKey());

    Flux<String> f = Flux.<String> create(emitter -> {

        log.info("[I168] Adding listener, queue={}", d.getRoutingKey());
        mlc.setupMessageListener((MessageListener) m -> {

            String qname = m.getMessageProperties()
                .getConsumerQueue();

            log.info("[I137] Message received, queue={}", qname);

            if (emitter.isCancelled()) {
                log.info("[I166] cancelled, queue={}", qname);
                mlc.stop();
                return;
            }

            String payload = new String(m.getBody());
            emitter.next(payload);

            log.info("[I176] Message sent to client, queue={}", qname);

        });

        emitter.onRequest(v -> {
            log.info("[I171] Starting container, queue={}", d.getRoutingKey());
            mlc.start();
        });

        emitter.onDispose(() -> {
            log.info("[I176] onDispose: queue={}", d.getRoutingKey());
            mlc.stop();
        });

        log.info("[I171] Container started, queue={}", d.getRoutingKey());

    });
    

    return Flux.interval(Duration.ofSeconds(5))
        .map(v -> {
            log.info("[I209] sending keepalive message...");
            return "No news is good news";
        })
        .mergeWith(f);
}
Example #6
Source File: AmqpReactiveController.java    From tutorials with MIT License 4 votes vote down vote up 
@GetMapping(value = "/topic/{name}", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
public Flux<?> receiveMessagesFromTopic(@PathVariable String name) {

    DestinationsConfig.DestinationInfo d = destinationsConfig.getTopics()
        .get(name);

    if (d == null) {
        return Flux.just(ResponseEntity.notFound()
            .build());
    }

    Queue topicQueue = createTopicQueue(d);
    String qname = topicQueue.getName();

    MessageListenerContainer mlc = messageListenerContainerFactory.createMessageListenerContainer(qname);

    Flux<String> f = Flux.<String> create(emitter -> {

        log.info("[I168] Adding listener, queue={}", qname);

        mlc.setupMessageListener((MessageListener) m -> {

            log.info("[I137] Message received, queue={}", qname);

            if (emitter.isCancelled()) {
                log.info("[I166] cancelled, queue={}", qname);
                mlc.stop();
                return;
            }

            String payload = new String(m.getBody());
            emitter.next(payload);

            log.info("[I176] Message sent to client, queue={}", qname);

        });

        emitter.onRequest(v -> {
            log.info("[I171] Starting container, queue={}", qname);
            mlc.start();
        });

        emitter.onDispose(() -> {
            log.info("[I176] onDispose: queue={}", qname);
            amqpAdmin.deleteQueue(qname);
            mlc.stop();
        });            

        log.info("[I171] Container started, queue={}", qname);

      });
    
    return Flux.interval(Duration.ofSeconds(5))
      .map(v -> {
            log.info("[I209] sending keepalive message...");
            return "No news is good news";
      })
      .mergeWith(f);

}