[question] Retry on Timeout?

Is it possible to retry a call when a timeout occurs? At the moment I use TimeLimiter, CircuitBreaker, Retry and Bulkhead like this:

`ExecutorService executorService = Executors.newSingleThreadExecutor(); Supplier<Future<T>> futureSupplier = () -> executorService.submit(pCallable);

Callable<T> callable = TimeLimiter.decorateFutureSupplier(timeLimiter, futureSupplier); callable = CircuitBreaker.decorateCallable(circuitBreaker, callable); callable = Retry.decorateCallable(retry, callable); callable = Bulkhead.decorateCallable(bulkhead, callable);

return Try.ofCallable(callable).get();`

When a timeout occurs the execution stops immediately and there is no retry. Or is the retry mechanism only for exceptions within the timeout duration?

[RobWin]

But there are also methods to decorate an CompletionStage (CompletableFuture)

Supplier<CompletionStage<String>> completionStageSupplier =
                () -> CompletableFuture.supplyAsync(helloWorldService::returnHelloWorld);

Supplier<CompletionStage<String>> decoratedCompletionStageSupplier =
    CircuitBreaker.decorateCompletionStage(circuitBreaker, completionStageSupplier)
     .get()
     .thenApply(value -> value + " world");;

[RobWin]

Btw. in the meantime you can use

Retry retry = Retry.ofDefaults("test");
Supplier<CompletableFuture<String>> futureSupplier = () -> CompletableFuture.supplyAsync(() -> "Hello");
Callable<String> callable = TimeLimiter.decorateFutureSupplier(TimeLimiter.of(Duration.ofMillis(500)), futureSupplier);
String result = Retry.decorateCheckedSupplier(retry, callable::call).apply();

I will also add a retry.executeCheckedSupplier method to reduce the overhead.