Change deferredResult HTTP status code on timeout

Question

I am using deferredResult on Spring MVC, but using this code, the timeout still are sending back the HTTP code 503 to the client.

future.onCompletion(new Runnable() {
    @Override
    public void run() {

        if(future.isSetOrExpired()){
            response.setStatus(HttpServletResponse.SC_NO_CONTENT);
        }
    }
});

Any idea what else to try?

Answer 1

I ran into the same issue. My Spring MVC Controller method originally returned DeferredResult<Object> but then I realised I wanted to control the HTTP status code. I found the answer here:

http://www.jayway.com/2014/09/09/asynchronous-spring-service/

Just use DeferredResult<ResponseEntity> and you can set both the response and the Http response code in the ResponseEntity.