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

Question

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?

score 0 · Accepted Answer · answered Jun 15 '21 at 02:24

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);
    }

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

1 Answers1