Examples with KxReactiveStreams org.nustaq.kontraktor.reactivestreams.KxReactiveStreams used on opensource projects

Example 1 with KxReactiveStreams

use of org.nustaq.kontraktor.reactivestreams.KxReactiveStreams in project kontraktor by RuedigerMoeller.

the class AkkaInterop method akkaConsumes.

@Test
public void akkaConsumes() throws InterruptedException {
    final int NUM_MSG = 20_000_000;
    final ActorSystem system = ActorSystem.create("reactive-interop");
    // Attention: buffer + batchsizes of Akka need increase in order to get performance
    final ActorMaterializer mat = ActorMaterializer.create(ActorMaterializerSettings.create(system).withInputBuffer(4096, 4096), system);
    KxReactiveStreams kxStreams = KxReactiveStreams.get();
    RateMeasure rm = new RateMeasure("rate");
    CountDownLatch count = new CountDownLatch(NUM_MSG);
    Source.from(kxStreams.produce(IntStream.range(0, NUM_MSG))).runWith(Sink.foreach(elem -> {
        rm.count();
        count.countDown();
    }), mat);
    int secondsWait = 50;
    while (count.getCount() > 0 && secondsWait-- > 0) {
        System.out.println("count:" + count.getCount());
        Thread.sleep(1000);
    }
    system.shutdown();
    Assert.assertTrue(count.getCount() == 0);
    // give time closing stuff
    Thread.sleep(1000);
}

Example 2 with KxReactiveStreams

use of org.nustaq.kontraktor.reactivestreams.KxReactiveStreams in project kontraktor by RuedigerMoeller.

the class AkkaInterop method serveAkka_RemoteToKontraktor.

@Test
public void serveAkka_RemoteToKontraktor() throws InterruptedException {
    final int NUM_MSG = 50_000_000;
    final ActorSystem system = ActorSystem.create("reactive-interop");
    final Materializer mat = ActorMaterializer.create(system);
    KxReactiveStreams kxStreams = KxReactiveStreams.get();
    RateMeasure rm = new RateMeasure("rate");
    CountDownLatch count = new CountDownLatch(NUM_MSG);
    Iterable it = () -> IntStream.range(0, NUM_MSG).mapToObj(x -> x).iterator();
    Publisher<Integer> pub = (Publisher<Integer>) Source.from(it).runWith(Sink.publisher(), mat);
    kxStreams.asKxPublisher(pub).serve(new WebSocketPublisher().hostName("localhost").port(6790).urlPath("akka"));
    // subscribe with kontraktor client
    new KxReactiveStreams(true).connect(Integer.class, new WebSocketConnectable().url("ws://localhost:6790/akka")).subscribe((res, err) -> {
        if (Actors.isResult(err)) {
            rm.count();
            count.countDown();
        }
    });
    int secondsWait = 50;
    while (count.getCount() > 0 && secondsWait-- > 0) {
        System.out.println("count:" + count.getCount());
        Thread.sleep(1000);
    }
    system.shutdown();
    Assert.assertTrue(count.getCount() == 0);
    // give time closing stuff
    Thread.sleep(1000);
}

Example 3 with KxReactiveStreams

use of org.nustaq.kontraktor.reactivestreams.KxReactiveStreams in project kontraktor by RuedigerMoeller.

the class AkkaInterop method same_as_serveAkkaKontraktorAsBridge_use_RxJavaAtReceiverSide.

@Test
public void same_as_serveAkkaKontraktorAsBridge_use_RxJavaAtReceiverSide() throws InterruptedException {
    Log.setLevel(Log.DEBUG);
    final int NUM_MSG = 20_000_000;
    final ActorSystem system = ActorSystem.create("reactive-interop");
    // Attention: buffer + batchsizes of Akka need increase in order to get performance
    final ActorMaterializer mat = ActorMaterializer.create(ActorMaterializerSettings.create(system).withInputBuffer(8192, 8192), system);
    KxReactiveStreams kxStreams = KxReactiveStreams.get();
    RateMeasure rm = new RateMeasure("rate");
    CountDownLatch count = new CountDownLatch(NUM_MSG);
    Iterable it = () -> IntStream.range(0, NUM_MSG).mapToObj(x -> x).iterator();
    Publisher<Integer> pub = (Publisher<Integer>) Source.from(it).runWith(Sink.publisher(), mat);
    kxStreams.asKxPublisher(pub).serve(new WebSocketPublisher().hostName("localhost").port(6789).urlPath("akka"));
    AtomicInteger kontraktorCount = new AtomicInteger(0);
    // subscribe with akka client
    KxPublisher<Integer> remotedPublisher = new KxReactiveStreams(true).connect(Integer.class, new WebSocketConnectable().url("ws://localhost:6789/akka")).map(x -> {
        // (*)
        kontraktorCount.incrementAndGet();
        return x;
    });
    RxReactiveStreams.toObservable(remotedPublisher).forEach(i -> {
        rm.count();
        count.countDown();
    });
    int secondsWait = 50;
    while (count.getCount() > 0 && secondsWait-- > 0) {
        System.out.println("count:" + (NUM_MSG - count.getCount()) + " kontraktor count:" + kontraktorCount.get());
        Thread.sleep(1000);
    }
    system.shutdown();
    Assert.assertTrue(count.getCount() == 0);
    // give time closing stuff
    Thread.sleep(1000);
}

Example 4 with KxReactiveStreams

use of org.nustaq.kontraktor.reactivestreams.KxReactiveStreams in project kontraktor by RuedigerMoeller.

the class Java8Streams method remoteJava8Streams.

/**
 * stream a java 8 stream via network
 *
 * @throws InterruptedException
 */
public <T> int remoteJava8Streams(Function<MyEvent, T> doStuff, int port) throws InterruptedException {
    AtomicInteger validCount = new AtomicInteger(-1);
    KxReactiveStreams kxReactiveStreams = KxReactiveStreams.get();
    kxReactiveStreams.produce(IntStream.range(0, 5_000_000).mapToObj(i -> new MyEvent(i, Math.random(), "Hello" + i))).serve(new TCPPublisher().port(port));
    CountDownLatch latch = new CountDownLatch(1);
    RateMeasure measure = new RateMeasure("rate");
    KxReactiveStreams.get().connect(MyEvent.class, new TCPConnectable().host("localhost").port(port)).stream(stream -> {
        long count = 0;
        try {
            count = stream.map(event -> {
                measure.count();
                return doStuff.apply(event);
            }).count();
        } finally {
            System.out.println("Count:" + count);
            validCount.set((int) count);
            latch.countDown();
        }
    });
    latch.await();
    return validCount.get();
}

Example 5 with KxReactiveStreams

use of org.nustaq.kontraktor.reactivestreams.KxReactiveStreams in project kontraktor by RuedigerMoeller.

the class AkkaInterop method serveAkkaKontraktorAsBridge.

@Test
@Ignore
public void serveAkkaKontraktorAsBridge() throws InterruptedException {
    Log.setLevel(Log.DEBUG);
    final int NUM_MSG = 20_000_000;
    final ActorSystem system = ActorSystem.create("reactive-interop");
    // Attention: buffer + batchsizes of Akka need increase in order to get performance
    final ActorMaterializer mat = ActorMaterializer.create(ActorMaterializerSettings.create(system).withInputBuffer(8192, 8192), system);
    KxReactiveStreams kxStreams = KxReactiveStreams.get();
    RateMeasure rm = new RateMeasure("rate");
    CountDownLatch count = new CountDownLatch(NUM_MSG);
    Iterable it = () -> IntStream.range(0, NUM_MSG).mapToObj(x -> x).iterator();
    Publisher<Integer> pub = (Publisher<Integer>) Source.from(it).runWith(Sink.publisher(), mat);
    kxStreams.asKxPublisher(pub).serve(new WebSocketPublisher().hostName("localhost").port(6789).urlPath("akka"));
    AtomicInteger kontraktorCount = new AtomicInteger(0);
    // subscribe with akka client
    KxPublisher<Integer> remotedPublisher = new KxReactiveStreams(true).connect(Integer.class, new WebSocketConnectable().url("ws://localhost:6789/akka")).map(x -> {
        // (*)
        kontraktorCount.incrementAndGet();
        return x;
    });
    // for unknown reasons, this loses messages .. kontraktor receiver (*) above gets them all.
    // when trying to reproduce this locally the message loss seems not to occur.
    // as one can see from the counters the message loss is linear (not related to stream completion)
    // I think its an Akka issue as same test works if consuming from RxJava (see below)
    Source.from(remotedPublisher).runWith(Sink.foreach(elem -> {
        rm.count();
        count.countDown();
    }), mat);
    int secondsWait = 50;
    while (count.getCount() > 0 && secondsWait-- > 0) {
        System.out.println("count:" + (NUM_MSG - count.getCount()) + " kontraktor count:" + kontraktorCount.get());
        Thread.sleep(1000);
    }
    system.shutdown();
    Assert.assertTrue(count.getCount() == 0);
    // give time closing stuff
    Thread.sleep(1000);
}