Set default timeout in all asynchronous requests - asynchronous

Question

I'm using #Suspended AsyncResponse response in my requests and starting threads to process the request. When the process finishes, I'm trying to resume the response but RestEasy is marking the request as done because the request thread has finished and no timeout was set in the response. If I set timeout, it works fine but I would need to set the timeout in every asynchronous request I want want to implement. Is there anyway to horizontally set the timeout to all my suspended AsyncRequests?

Answer 1

Unfortunately, the JAX-RS 2.0 specification, the RESTEasy documentation and the Jersey documentation don't mention anything about setting a default timeout for the AsyncResponse.
The Jersey documentation mentions the following:
By default, there is no timeout defined on the suspended AsyncResponse instance. A custom timeout and timeout event handler may be defined using setTimeoutHandler(TimeoutHandler) and setTimeout(long, TimeUnit) methods. The setTimeoutHandler(TimeoutHandler) method defines the handler that will be invoked when timeout is reached. The handler resumes the response with the response code 503 (from Response.Status.SERVICE_UNAVAILABLE). A timeout interval can be also defined without specifying a custom timeout handler (using just the setTimeout(long, TimeUnit) method).
So, the solution won't be different from the solution you are already using:
#GET
public void longRunningOperation(#Suspended final AsyncResponse asyncResponse) {
// Register a timeout handler
asyncResponse.setTimeoutHandler(new TimeoutHandler() {
#Override
public void handleTimeout(AsyncResponse asyncResponse) {
asyncResponse.resume(Response.status(SERVICE_UNAVAILABLE)
.entity("Operation timed out. Please try again.").build());
}
});
// Set timeout
asyncResponse.setTimeout(15, SECONDS);
// Execute long running operation in new thread
executor.execute(new Runnable() {
#Override
public void run() {
executeLongRunningOp();
asyncResponse.resume("Hello async world!");
}
});
}