Can a service update a controller in Spring boot for long processes

this is a question more about communication between service and controller annotated classes in spring boot. I have a RestController class that exposes a POST mapping which calls a method in the Service class. Now this method may take a long time running; hence there is a need to send some kind of feedback to the controller.

Is there any mechanism which allows a service to call/update a method/variable in the controller?

one of the most simplest ways is passing some lamda function from the controller to the service and call it from the service like this

Controller Class

@RestController
public class controller {
	@Autowired
	Service service;
	public void foo() {
			service.foo(..parms, (message/*any params you want*/) -> {
				// here the body that will receive the message from the service
				System.out.print(message);
			});
	}
}

Service Class

public class Service {
	// updateStatus here is the function you will send the update to the controller from
	public void foo(...params, updateStatus) {
		updateStatus("starting the process...");
		// do some code
		updateStatus("in progress...");
		// do some code
		updateStatus("completed");
	}
}