javaspringspring-bootspring-integration-amqp

Is it possible to make MessageHeaders.ID not transient in Spring Integration?


I am attempting to send messages via a Spring Cloud Stream Source. The application receiving the message to requires the id header to be present. I am unable to change this requirement, so I need to find a way to ensure that the id header is mapped to my outgoing message.

I noticed that the id header was being mapped to a message_id property. After a bit more digging I realised that it is because the id header is declared as transient here.

Is there a way to ensure that the id header persists when the message is sent?


Solution

  • I was unable to solve this using Spring Cloud Stream. Instead I reverted to using Spring AMQP.

    Here is my solution:

    import org.springframework.amqp.core.MessageBuilder;
    import org.springframework.amqp.core.MessageProperties;
    import org.springframework.amqp.rabbit.core.RabbitTemplate;
    import org.springframework.beans.factory.annotation.Autowired;
    
    import java.util.UUID;
    
    @Service
    public class ExampleService {
    
        String exchange = "exchangeName";
        String queue = "queueName";
    
        @Autowired
        RabbitTemplate rabbitTemplate;
    
        public void sendMessage() {
                final var jsonToQueue = "{\"message\":\"test message\"}";
                final var message = MessageBuilder.withBody(jsonToQueue.getBytes())
                        .setContentType(MessageProperties.CONTENT_TYPE_JSON)
                        .setHeader("id", UUID.randomUUID())
                        .build();
                rabbitTemplate.send(exchange, queue, message);
        }