spring-amqp RabbitMQ dynamically change publisher-confirms - rabbitmq

Question

Is there a way to change publisher-confirms per message? We have a rest layer that receives the message and publishes to RabbitMQ. Based on certain message properties, we decide whether publisher confirm is needed or not.
Is there a way to override, publisher-confirms while sending message?

Answer 1

No; we have to add a bunch of scaffolding to support returns. Also, channels are cached and there is no way to turn off confirms for a channel once set. We'd have to keep 2 different caches.
If you wish to use conditional confirms, you could define two connection factories (and templates), one with confirms enabled, one not, and select which template to use at runtime.
EDIT
#SpringBootApplication
public class So41131612Application {
public static void main(String[] args) throws Exception {
ConfigurableApplicationContext context = SpringApplication.run(So41131612Application.class, args);
context.getBean("normalTemplate", RabbitTemplate.class).convertAndSend("foo", "foo");
context.getBean("confirmingTemplate", RabbitTemplate.class).convertAndSend("", "foo", "foo",
new CorrelationData("foo"));
Thread.sleep(2000);
context.getBean(RabbitAdmin.class).deleteQueue("foo");
context.close();
}
#Bean
public Queue foo() {
return new Queue("foo");
}
#Bean
#Primary
public CachingConnectionFactory rabbitConnectionFactory() {
return new CachingConnectionFactory("localhost");
}
#Bean
public CachingConnectionFactory confirmingCf() {
CachingConnectionFactory cf = new CachingConnectionFactory("localhost");
cf.setPublisherConfirms(true);
return cf;
}
#Bean
public AmqpTemplate normalTemplate(#Qualifier("rabbitConnectionFactory") CachingConnectionFactory normalCf) {
return new RabbitTemplate(normalCf);
}
#Bean
public AmqpTemplate confirmingTemplate(#Qualifier("confirmingCf") CachingConnectionFactory confirmingCf) {
RabbitTemplate rabbitTemplate = new RabbitTemplate(confirmingCf);
rabbitTemplate.setMandatory(true);
rabbitTemplate.setConfirmCallback((cd, ack, cause) -> {
System.out.println("Correlation:" + cd + " ack: " + ack);
});
return rabbitTemplate;
}
}