Java Code Examples for java.util.concurrent.CompletionStage#thenRun()

The following examples show how to use java.util.concurrent.CompletionStage#thenRun() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: java-async-util   File: AsyncIterators.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public CompletionStage<Either<End, U>> nextStage() {
  final CompletableFuture<Either<End, U>> listener = new CompletableFuture<>();
  final CompletionStage<Void> nextFinished = attachListener(listener);

  nextFinished.thenRun(() -> {
    AsyncTrampoline
        .asyncWhile(() -> StageSupport.tryComposeWith(this.lock.acquireLock(), token -> {
          if (this.closed) {
            return StageSupport.completedStage(false);
          }
          return fillMore()
              .thenApply(Either::isRight)
              // exceptional futures get added to the queue same as normal ones,
              // we may continue filling
              .exceptionally(e -> true);
        }));
  });

  return listener;
}
 
Example 2
@Override
public void registerEvent(RawEvent event) throws IOException {
    int ops = event.interestOps();
    if ((ops & SelectionKey.OP_WRITE) != 0) {
        synchronized (stateLock) {
            checkOpen();
            executor.execute(event::handle);
        }
    } else if ((ops & SelectionKey.OP_READ) != 0) {
        CompletionStage<?> cs;
        synchronized (readLock) {
            cs = currentRule().whenReady();
            synchronized (stateLock) {
                checkOpen();
                cs.thenRun(() -> executor.execute(event::handle));
            }
        }
    } else {
        throw new RuntimeException("Unexpected registration: " + ops);
    }
}
 
Example 3
private void verifyComplete(boolean completeBeforeListen) throws InterruptedException {
    CountDownLatch latch = new CountDownLatch(1);
    CompletionStage<Void> stage = source.toCompletionStage();
    if (completeBeforeListen) {
        source.onComplete();
        stage.thenRun(latch::countDown);
    } else {
        stage.thenRun(latch::countDown);
        source.onComplete();
    }
    latch.await();
}
 
Example 4
Source Project: java-async-util   File: CompletedStage.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public CompletionStage<Void> runAfterBoth(final CompletionStage<?> other, final Runnable action) {
  Objects.requireNonNull(action);
  return other.thenRun(
      this.exception == null
          ? action
          : () -> {
            throw CompletedStage.wrapIfNecessary(this.exception);
          });
}
 
Example 5
private void dumpSourceToStdOut(Source<?,NotUsed> src) throws InterruptedException, ExecutionException {
    final ActorSystem system = ActorSystem.create("QuickStart");
    final Materializer materializer = ActorMaterializer.create(system);

    final CompletionStage<Done> done = src.runWith(Sink.foreach(a -> System.out.println(a)),materializer);
    done.thenRun(()->system.terminate());

    // Make it happen
    done.toCompletableFuture().get();
}
 
Example 6
private String dumpSourceToString(Source<?,NotUsed> f) throws InterruptedException, ExecutionException {
    final ActorSystem system = ActorSystem.create("QuickStart");
    final Materializer materializer = ActorMaterializer.create(system);

    StringBuilder s = new StringBuilder();
    final CompletionStage<Done> done = f.runWith(Sink.foreach(a -> s.append(a)),materializer);

    done.thenRun(()->system.terminate());
    done.toCompletableFuture().get();

    return s.toString();
}
 
Example 7
@Test
public void thenRunShouldRun() {
    CompletionStage<String> completionStage = createCompletionStage(VALUE);

    Runnable runnable = mock(Runnable.class);
    completionStage.thenRun(runnable);

    finish(completionStage);

    verify(runnable).run();
}