Examples with ResultBackedExecResult ratpack.exec.internal.ResultBackedExecResult used on opensource projects

Example 1 with ResultBackedExecResult

use of ratpack.exec.internal.ResultBackedExecResult in project ratpack by ratpack.

the class DefaultExecHarness method yield.

@Override
public <T> ExecResult<T> yield(Action<? super RegistrySpec> registry, final Function<? super Execution, ? extends Promise<T>> func) throws Exception {
    AtomicReference<ExecResult<T>> reference = new AtomicReference<>();
    CountDownLatch latch = new CountDownLatch(1);
    controller.fork().register(registry).onError(throwable -> reference.set(new ResultBackedExecResult<>(Result.<T>error(throwable)))).onComplete(exec -> latch.countDown()).start(execution -> {
        reference.set(ExecResult.complete());
        Promise<T> promise = func.apply(execution);
        if (promise == null) {
            reference.set(null);
        } else {
            promise.then(t -> reference.set(new ResultBackedExecResult<>(Result.success(t))));
        }
    });
    latch.await();
    return reference.get();
}