How to run consumer @StreamListener only after ApplicationReadyEvent method completed?

Question

I have a consumer method with

@StreamListener(target = Sink.INPUT)
method()

And I have a method with an event listener

@EventListener(ApplicationReadyEvent.class)
method()...

Is it possible to configure @StreamListener to start listening only after @EventListener method is completed?

Answer 1

According to Spring Cloud Stream docs you could use property spring.cloud.stream.bindings.<bindingName>.consumer.autoStartup=false which will stop BindingService from automatically starting consumer binding. Then you can do it yourself whenever you need, e.g. in ApplicationReadyEvent listener.

public class DelayedBindingStarter {

    private final BindingsEndpoint bindingsEndpoint;

    @EventListener(ApplicationReadyEvent.class)
    public void applicationReady() {
        bindingsEndpoint.changeState("binding_name", BindingsLifecycleController.State.STARTED);
    }
}