[rabbitmq-discuss] How to configure reply queue?

[Gary Russell]

Please read the documentation...
http://docs.spring.io/spring-amqp/reference/html/amqp.html#d4e460

It explains that, when you use a fixed reply queue, and roll your own
configuration like this, you have to wire up a listener container for the
replies (with the rabbitTemplate as the listener).

If you use a listener-container on the consumer side (with a
MessageListenerAdapter), it will automatically send the result to the
replyTo. Your consumer can be a simple POJO method that returns a list of
Objects. Use a JsonMessageConverter in the adapter to convert them to JSON.




On Mon, Nov 11, 2013 at 9:56 AM, Rajasekhar P <sekhar434145 at gmail.com>wrote:

> Thank you Russell for the response. Still am stuck with achieving above
> program, could please tell where am failing while doing above code. Below
> is the code at producer end.
>
>
>
> CONFIGURATION -
>
> public RabbitTemplate rabbitTemplate() {
> RabbitTemplate template = new RabbitTemplate(connectionFactory());
>  template.setRoutingKey(this.queueName);
> template.setQueue(this.queueName);
> template.setMessageConverter(new JsonMessageConverter());
>  return template;
> }
>
> public ConnectionFactory connectionFactory() {
>  CachingConnectionFactory connectionFactory = new
> CachingConnectionFactory(
> "localhost");
>  connectionFactory.setUsername("guest");
> connectionFactory.setPassword("guest");
> return connectionFactory;
>  }
>
>
> PRODUCER CODE -
>
>
> String corrId = UUID.randomUUID().toString();
>  String replyQueueName = *channel*.queueDeclare().getQueue();
>  MessageProperties prop = new MessageProperties();
>  prop.setCorrelationId(corrId.getBytes());
> prop.setReplyTo(replyQueueName);
> Message message = new Message(query.getBytes(), prop);
>  Message msg = rabbitTemplate.sendAndReceive(message);
>
>
> Is this correct at producer end? Here how to Channel to retrieve
> reqplyQueueName? Could you please correct me on this and please tell me how
> to write consumer code to send the result(List of Objects) in JSON format
> back to that particular request in replyqueue? Thanks in advance.
>
>
> On Fri, Nov 8, 2013 at 7:20 PM, Gary Russell <grussell at gopivotal.com>wrote:
>
>> http://docs.spring.io/spring-amqp/reference/html/amqp.html#request-reply
>>
>> The simplest is to configure the RabbitTemplate to use a fixed reply
>> queue, with a reply listener, and use one of it's
>> convertSendAndReceive(...) (or sendAndReceive) methods; the template will
>> take care of the correlation.
>>
>> If you want to do it asynchronously and do your own correlation (get the
>> reply asynchronously on another thread) just use one of the send() methods
>> and wire up a listener container to get the results.
>>
>>
>>
>> On Fri, Nov 8, 2013 at 12:36 AM, Rajasekhar P <sekhar434145 at gmail.com>wrote:
>>
>>> Hi Team,
>>>
>>> We are trying to make asynchronous call in RabbitMQ using Spring AMQP,
>>> could any one please tell me how to configure *replyqueue,
>>> correlationId, (properties) *using spring amqp?
>>>
>>>  String corrId = java.util.UUID.randomUUID().toString();
>>>  BasicProperties props = new BasicProperties
>>>                                 .Builder()
>>>                                 .correlationId(corrId)
>>>                                 .replyTo(replyQueueName)
>>>                                 .build();
>>>
>>>  channel.basicPublish("", requestQueueName, props, message.getBytes());
>>>
>>>
>>> Thanks in advance.
>>>
>>> _______________________________________________
>>> rabbitmq-discuss mailing list
>>> rabbitmq-discuss at lists.rabbitmq.com
>>> https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
>>>
>>>
>>
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>>
>
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