Examples with Controller io.pravega.client.control.impl.Controller used on opensource projects

Example 41 with Controller

use of io.pravega.client.control.impl.Controller in project pravega by pravega.

the class WatermarkingTest method watermarkTest.

@Test(timeout = 120000)
public void watermarkTest() throws Exception {
    Controller controller = PRAVEGA.getLocalController();
    String scope = "scope";
    String stream = "watermarkTest";
    StreamConfiguration config = StreamConfiguration.builder().scalingPolicy(ScalingPolicy.fixed(5)).build();
    ClientConfig clientConfig = ClientConfig.builder().controllerURI(PRAVEGA.getControllerURI()).build();
    @Cleanup StreamManager streamManager = StreamManager.create(clientConfig);
    streamManager.createScope(scope);
    streamManager.createStream(scope, stream, config);
    Stream streamObj = Stream.of(scope, stream);
    // create 2 writers
    @Cleanup EventStreamClientFactory clientFactory = EventStreamClientFactory.withScope(scope, clientConfig);
    JavaSerializer<Long> javaSerializer = new JavaSerializer<>();
    @Cleanup EventStreamWriter<Long> writer1 = clientFactory.createEventWriter(stream, javaSerializer, EventWriterConfig.builder().build());
    @Cleanup EventStreamWriter<Long> writer2 = clientFactory.createEventWriter(stream, javaSerializer, EventWriterConfig.builder().build());
    AtomicBoolean stopFlag = new AtomicBoolean(false);
    // write events
    CompletableFuture<Void> writer1Future = writeEvents(writer1, stopFlag);
    CompletableFuture<Void> writer2Future = writeEvents(writer2, stopFlag);
    // scale the stream several times so that we get complex positions
    scale(controller, streamObj, config);
    @Cleanup ConnectionFactory connectionFactory = new SocketConnectionFactoryImpl(clientConfig);
    @Cleanup ClientFactoryImpl syncClientFactory = new ClientFactoryImpl(scope, new ControllerImpl(ControllerImplConfig.builder().clientConfig(clientConfig).build(), connectionFactory.getInternalExecutor()), connectionFactory);
    String markStream = NameUtils.getMarkStreamForStream(stream);
    @Cleanup RevisionedStreamClient<Watermark> watermarkReader = syncClientFactory.createRevisionedStreamClient(markStream, new WatermarkSerializer(), SynchronizerConfig.builder().build());
    LinkedBlockingQueue<Watermark> watermarks = new LinkedBlockingQueue<>();
    fetchWatermarks(watermarkReader, watermarks, stopFlag);
    AssertExtensions.assertEventuallyEquals(true, () -> watermarks.size() >= 2, 100000);
    stopFlag.set(true);
    writer1Future.join();
    writer2Future.join();
    // read events from the stream
    @Cleanup ReaderGroupManager readerGroupManager = new ReaderGroupManagerImpl(scope, controller, syncClientFactory);
    Watermark watermark0 = watermarks.take();
    Watermark watermark1 = watermarks.take();
    assertTrue(watermark0.getLowerTimeBound() <= watermark0.getUpperTimeBound());
    assertTrue(watermark1.getLowerTimeBound() <= watermark1.getUpperTimeBound());
    assertTrue(watermark0.getLowerTimeBound() < watermark1.getLowerTimeBound());
    Map<Segment, Long> positionMap0 = watermark0.getStreamCut().entrySet().stream().collect(Collectors.toMap(x -> new Segment(scope, stream, x.getKey().getSegmentId()), Map.Entry::getValue));
    Map<Segment, Long> positionMap1 = watermark1.getStreamCut().entrySet().stream().collect(Collectors.toMap(x -> new Segment(scope, stream, x.getKey().getSegmentId()), Map.Entry::getValue));
    StreamCut streamCutFirst = new StreamCutImpl(streamObj, positionMap0);
    StreamCut streamCutSecond = new StreamCutImpl(streamObj, positionMap1);
    Map<Stream, StreamCut> firstMarkStreamCut = Collections.singletonMap(streamObj, streamCutFirst);
    Map<Stream, StreamCut> secondMarkStreamCut = Collections.singletonMap(streamObj, streamCutSecond);
    // read from stream cut of first watermark
    String readerGroup = "watermarkTest-group";
    readerGroupManager.createReaderGroup(readerGroup, ReaderGroupConfig.builder().stream(streamObj).startingStreamCuts(firstMarkStreamCut).endingStreamCuts(secondMarkStreamCut).disableAutomaticCheckpoints().build());
    @Cleanup final EventStreamReader<Long> reader = clientFactory.createReader("myreader", readerGroup, javaSerializer, ReaderConfig.builder().build());
    EventRead<Long> event = reader.readNextEvent(10000L);
    TimeWindow currentTimeWindow = reader.getCurrentTimeWindow(streamObj);
    while (event.getEvent() != null && currentTimeWindow.getLowerTimeBound() == null && currentTimeWindow.getUpperTimeBound() == null) {
        event = reader.readNextEvent(10000L);
        currentTimeWindow = reader.getCurrentTimeWindow(streamObj);
    }
    assertNotNull(currentTimeWindow.getUpperTimeBound());
    // read all events and verify that all events are below the bounds
    while (event.getEvent() != null) {
        Long time = event.getEvent();
        log.info("timewindow = {} event = {}", currentTimeWindow, time);
        assertTrue(currentTimeWindow.getLowerTimeBound() == null || time >= currentTimeWindow.getLowerTimeBound());
        assertTrue(currentTimeWindow.getUpperTimeBound() == null || time <= currentTimeWindow.getUpperTimeBound());
        TimeWindow nextTimeWindow = reader.getCurrentTimeWindow(streamObj);
        assertTrue(currentTimeWindow.getLowerTimeBound() == null || nextTimeWindow.getLowerTimeBound() >= currentTimeWindow.getLowerTimeBound());
        assertTrue(currentTimeWindow.getUpperTimeBound() == null || nextTimeWindow.getUpperTimeBound() >= currentTimeWindow.getUpperTimeBound());
        currentTimeWindow = nextTimeWindow;
        event = reader.readNextEvent(10000L);
        if (event.isCheckpoint()) {
            event = reader.readNextEvent(10000L);
        }
    }
    assertNotNull(currentTimeWindow.getLowerTimeBound());
}

Example 42 with Controller

use of io.pravega.client.control.impl.Controller in project pravega by pravega.

the class WatermarkingTest method watermarkTxnTest.

@Test(timeout = 120000)
public void watermarkTxnTest() throws Exception {
    Controller controller = PRAVEGA.getLocalController();
    String scope = "scopeTx";
    String stream = "watermarkTxnTest";
    ClientConfig clientConfig = ClientConfig.builder().controllerURI(PRAVEGA.getControllerURI()).build();
    StreamConfiguration config = StreamConfiguration.builder().scalingPolicy(ScalingPolicy.fixed(5)).build();
    @Cleanup StreamManager streamManager = StreamManager.create(clientConfig);
    streamManager.createScope(scope);
    streamManager.createStream(scope, stream, config);
    Stream streamObj = Stream.of(scope, stream);
    // create 2 writers
    @Cleanup EventStreamClientFactory clientFactory = EventStreamClientFactory.withScope(scope, clientConfig);
    JavaSerializer<Long> javaSerializer = new JavaSerializer<>();
    @Cleanup TransactionalEventStreamWriter<Long> writer1 = clientFactory.createTransactionalEventWriter("writer1", stream, new JavaSerializer<>(), EventWriterConfig.builder().transactionTimeoutTime(10000).build());
    @Cleanup TransactionalEventStreamWriter<Long> writer2 = clientFactory.createTransactionalEventWriter("writer2", stream, new JavaSerializer<>(), EventWriterConfig.builder().transactionTimeoutTime(10000).build());
    AtomicBoolean stopFlag = new AtomicBoolean(false);
    // write events
    CompletableFuture<Void> writer1Future = writeTxEvents(writer1, stopFlag);
    CompletableFuture<Void> writer2Future = writeTxEvents(writer2, stopFlag);
    // scale the stream several times so that we get complex positions
    scale(controller, streamObj, config);
    @Cleanup ConnectionFactory connectionFactory = new SocketConnectionFactoryImpl(clientConfig);
    @Cleanup ClientFactoryImpl syncClientFactory = new ClientFactoryImpl(scope, new ControllerImpl(ControllerImplConfig.builder().clientConfig(clientConfig).build(), connectionFactory.getInternalExecutor()), connectionFactory);
    String markStream = NameUtils.getMarkStreamForStream(stream);
    @Cleanup RevisionedStreamClient<Watermark> watermarkReader = syncClientFactory.createRevisionedStreamClient(markStream, new WatermarkSerializer(), SynchronizerConfig.builder().build());
    LinkedBlockingQueue<Watermark> watermarks = new LinkedBlockingQueue<>();
    fetchWatermarks(watermarkReader, watermarks, stopFlag);
    AssertExtensions.assertEventuallyEquals(true, () -> watermarks.size() >= 2, 100000);
    stopFlag.set(true);
    writer1Future.join();
    writer2Future.join();
    // read events from the stream
    @Cleanup ReaderGroupManager readerGroupManager = new ReaderGroupManagerImpl(scope, controller, syncClientFactory);
    Watermark watermark0 = watermarks.take();
    Watermark watermark1 = watermarks.take();
    assertTrue(watermark0.getLowerTimeBound() <= watermark0.getUpperTimeBound());
    assertTrue(watermark1.getLowerTimeBound() <= watermark1.getUpperTimeBound());
    assertTrue(watermark0.getLowerTimeBound() < watermark1.getLowerTimeBound());
    Map<Segment, Long> positionMap0 = watermark0.getStreamCut().entrySet().stream().collect(Collectors.toMap(x -> new Segment(scope, stream, x.getKey().getSegmentId()), Map.Entry::getValue));
    Map<Segment, Long> positionMap1 = watermark1.getStreamCut().entrySet().stream().collect(Collectors.toMap(x -> new Segment(scope, stream, x.getKey().getSegmentId()), Map.Entry::getValue));
    StreamCut streamCutFirst = new StreamCutImpl(streamObj, positionMap0);
    StreamCut streamCutSecond = new StreamCutImpl(streamObj, positionMap1);
    Map<Stream, StreamCut> firstMarkStreamCut = Collections.singletonMap(streamObj, streamCutFirst);
    Map<Stream, StreamCut> secondMarkStreamCut = Collections.singletonMap(streamObj, streamCutSecond);
    // read from stream cut of first watermark
    String readerGroup = "watermarkTxnTest-group";
    readerGroupManager.createReaderGroup(readerGroup, ReaderGroupConfig.builder().stream(streamObj).startingStreamCuts(firstMarkStreamCut).endingStreamCuts(secondMarkStreamCut).disableAutomaticCheckpoints().build());
    @Cleanup final EventStreamReader<Long> reader = clientFactory.createReader("myreaderTx", readerGroup, javaSerializer, ReaderConfig.builder().build());
    EventRead<Long> event = reader.readNextEvent(10000L);
    TimeWindow currentTimeWindow = reader.getCurrentTimeWindow(streamObj);
    while (event.getEvent() != null && currentTimeWindow.getLowerTimeBound() == null && currentTimeWindow.getUpperTimeBound() == null) {
        event = reader.readNextEvent(10000L);
        currentTimeWindow = reader.getCurrentTimeWindow(streamObj);
    }
    assertNotNull(currentTimeWindow.getUpperTimeBound());
    // read all events and verify that all events are below the bounds
    while (event.getEvent() != null) {
        Long time = event.getEvent();
        log.info("timewindow = {} event = {}", currentTimeWindow, time);
        assertTrue(currentTimeWindow.getLowerTimeBound() == null || time >= currentTimeWindow.getLowerTimeBound());
        assertTrue(currentTimeWindow.getUpperTimeBound() == null || time <= currentTimeWindow.getUpperTimeBound());
        TimeWindow nextTimeWindow = reader.getCurrentTimeWindow(streamObj);
        assertTrue(currentTimeWindow.getLowerTimeBound() == null || nextTimeWindow.getLowerTimeBound() >= currentTimeWindow.getLowerTimeBound());
        assertTrue(currentTimeWindow.getUpperTimeBound() == null || nextTimeWindow.getUpperTimeBound() >= currentTimeWindow.getUpperTimeBound());
        currentTimeWindow = nextTimeWindow;
        event = reader.readNextEvent(10000L);
        if (event.isCheckpoint()) {
            event = reader.readNextEvent(10000L);
        }
    }
    assertNotNull(currentTimeWindow.getLowerTimeBound());
}

Example 43 with Controller

use of io.pravega.client.control.impl.Controller in project pravega by pravega.

the class ReadTest method readThroughSegmentClient.

@Test(timeout = 10000)
public void readThroughSegmentClient() throws SegmentSealedException, EndOfSegmentException, SegmentTruncatedException {
    String endpoint = "localhost";
    String scope = "scope";
    String stream = "readThroughSegmentClient";
    int port = TestUtils.getAvailableListenPort();
    String testString = "Hello world\n";
    StreamSegmentStore store = SERVICE_BUILDER.createStreamSegmentService();
    TableStore tableStore = SERVICE_BUILDER.createTableStoreService();
    @Cleanup PravegaConnectionListener server = new PravegaConnectionListener(false, port, store, tableStore, SERVICE_BUILDER.getLowPriorityExecutor());
    server.startListening();
    @Cleanup SocketConnectionFactoryImpl clientCF = new SocketConnectionFactoryImpl(ClientConfig.builder().build());
    @Cleanup ConnectionPoolImpl connectionPool = new ConnectionPoolImpl(ClientConfig.builder().build(), clientCF);
    @Cleanup Controller controller = new MockController(endpoint, port, connectionPool, true);
    controller.createScope(scope);
    controller.createStream(scope, stream, StreamConfiguration.builder().build());
    SegmentOutputStreamFactoryImpl segmentproducerClient = new SegmentOutputStreamFactoryImpl(controller, connectionPool);
    SegmentInputStreamFactoryImpl segmentConsumerClient = new SegmentInputStreamFactoryImpl(controller, connectionPool);
    Segment segment = Futures.getAndHandleExceptions(controller.getCurrentSegments(scope, stream), RuntimeException::new).getSegments().iterator().next();
    @Cleanup SegmentOutputStream out = segmentproducerClient.createOutputStreamForSegment(segment, segmentSealedCallback, EventWriterConfig.builder().build(), DelegationTokenProviderFactory.createWithEmptyToken());
    out.write(PendingEvent.withHeader(null, ByteBuffer.wrap(testString.getBytes()), new CompletableFuture<>()));
    out.flush();
    @Cleanup EventSegmentReader in = segmentConsumerClient.createEventReaderForSegment(segment);
    ByteBuffer result = in.read();
    assertEquals(ByteBuffer.wrap(testString.getBytes()), result);
    // Test large write followed by read
    out.write(PendingEvent.withHeader(null, ByteBuffer.wrap(new byte[15]), new CompletableFuture<>()));
    out.write(PendingEvent.withHeader(null, ByteBuffer.wrap(new byte[15]), new CompletableFuture<>()));
    out.write(PendingEvent.withHeader(null, ByteBuffer.wrap(new byte[150000]), new CompletableFuture<>()));
    assertEquals(in.read().capacity(), 15);
    assertEquals(in.read().capacity(), 15);
    assertEquals(in.read().capacity(), 150000);
}

Example 44 with Controller

use of io.pravega.client.control.impl.Controller in project pravega by pravega.

the class ReaderGroupNotificationTest method testEndOfStreamNotifications.

@Test(timeout = 40000)
public void testEndOfStreamNotifications() throws Exception {
    final String streamName = "stream2";
    StreamConfiguration config = StreamConfiguration.builder().scalingPolicy(ScalingPolicy.fixed(1)).build();
    Controller controller = controllerWrapper.getController();
    controllerWrapper.getControllerService().createScope(SCOPE, 0L).get();
    controller.createStream(SCOPE, streamName, config).get();
    @Cleanup ConnectionFactory connectionFactory = new SocketConnectionFactoryImpl(ClientConfig.builder().controllerURI(URI.create("tcp://localhost")).build());
    @Cleanup ClientFactoryImpl clientFactory = new ClientFactoryImpl(SCOPE, controller, connectionFactory);
    @Cleanup EventStreamWriter<String> writer = clientFactory.createEventWriter(streamName, new JavaSerializer<>(), EventWriterConfig.builder().build());
    writer.writeEvent("0", "data1").get();
    // scale
    Stream stream = new StreamImpl(SCOPE, streamName);
    Map<Double, Double> map = new HashMap<>();
    map.put(0.0, 0.5);
    map.put(0.5, 1.0);
    Boolean result = controller.scaleStream(stream, Collections.singletonList(0L), map, executorService()).getFuture().get();
    assertTrue(result);
    writer.writeEvent("0", "data2").get();
    // seal stream
    assertTrue(controller.sealStream(SCOPE, streamName).get());
    @Cleanup ReaderGroupManager groupManager = new ReaderGroupManagerImpl(SCOPE, controller, clientFactory);
    groupManager.createReaderGroup("reader", ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream(Stream.of(SCOPE, streamName)).groupRefreshTimeMillis(0).build());
    @Cleanup ReaderGroup readerGroup = groupManager.getReaderGroup("reader");
    @Cleanup EventStreamReader<String> reader1 = clientFactory.createReader("readerId", "reader", new JavaSerializer<>(), ReaderConfig.builder().initialAllocationDelay(0).build());
    // Add segment event listener
    Listener<EndOfDataNotification> l1 = notification -> {
        listenerInvoked.set(true);
        listenerLatch.release();
    };
    EndOfDataNotifier endOfDataNotifier = (EndOfDataNotifier) readerGroup.getEndOfDataNotifier(executorService());
    endOfDataNotifier.registerListener(l1);
    EventRead<String> event1 = reader1.readNextEvent(10000);
    assertEquals("data1", event1.getEvent());
    EventRead<String> emptyEvent = reader1.readNextEvent(0);
    assertNull(emptyEvent.getEvent());
    assertFalse(emptyEvent.isCheckpoint());
    readerGroup.initiateCheckpoint("cp", executorService());
    EventRead<String> cpEvent = reader1.readNextEvent(10000);
    assertTrue(cpEvent.isCheckpoint());
    EventRead<String> event2 = reader1.readNextEvent(10000);
    assertEquals("data2", event2.getEvent());
    emptyEvent = reader1.readNextEvent(0);
    assertNull(emptyEvent.getEvent());
    assertFalse(emptyEvent.isCheckpoint());
    emptyEvent = reader1.readNextEvent(0);
    assertNull(emptyEvent.getEvent());
    assertFalse(emptyEvent.isCheckpoint());
    readerGroup.initiateCheckpoint("cp2", executorService());
    cpEvent = reader1.readNextEvent(10000);
    assertTrue(cpEvent.isCheckpoint());
    emptyEvent = reader1.readNextEvent(0);
    assertNull(emptyEvent.getEvent());
    assertFalse(emptyEvent.isCheckpoint());
    endOfDataNotifier.pollNow();
    listenerLatch.await();
    assertTrue("Listener invoked", listenerInvoked.get());
}

Example 45 with Controller

use of io.pravega.client.control.impl.Controller in project pravega by pravega.

the class ReaderGroupNotificationTest method testSegmentNotifications.

@Test(timeout = 40000)
public void testSegmentNotifications() throws Exception {
    final String streamName = "stream1";
    StreamConfiguration config = StreamConfiguration.builder().scalingPolicy(ScalingPolicy.fixed(1)).build();
    Controller controller = controllerWrapper.getController();
    controllerWrapper.getControllerService().createScope(SCOPE, 0L).get();
    controller.createStream(SCOPE, streamName, config).get();
    @Cleanup ConnectionFactory connectionFactory = new SocketConnectionFactoryImpl(ClientConfig.builder().controllerURI(URI.create("tcp://localhost")).build());
    @Cleanup ClientFactoryImpl clientFactory = new ClientFactoryImpl(SCOPE, controller, connectionFactory);
    @Cleanup EventStreamWriter<String> writer = clientFactory.createEventWriter(streamName, new JavaSerializer<>(), EventWriterConfig.builder().build());
    writer.writeEvent("0", "data1").get();
    // scale
    Stream stream = new StreamImpl(SCOPE, streamName);
    Map<Double, Double> map = new HashMap<>();
    map.put(0.0, 0.5);
    map.put(0.5, 1.0);
    Boolean result = controller.scaleStream(stream, Collections.singletonList(0L), map, executorService()).getFuture().get();
    assertTrue(result);
    writer.writeEvent("0", "data2").get();
    @Cleanup ReaderGroupManager groupManager = new ReaderGroupManagerImpl(SCOPE, controller, clientFactory);
    groupManager.createReaderGroup("reader", ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream(Stream.of(SCOPE, streamName)).groupRefreshTimeMillis(0).build());
    @Cleanup ReaderGroup readerGroup = groupManager.getReaderGroup("reader");
    @Cleanup EventStreamReader<String> reader1 = clientFactory.createReader("readerId", "reader", new JavaSerializer<>(), ReaderConfig.builder().initialAllocationDelay(0).build());
    val notificationResults = new ArrayBlockingQueue<SegmentNotification>(2);
    // Add segment event listener
    Listener<SegmentNotification> l1 = notification -> {
        log.info("Number of Segments: {}, Number of Readers: {}", notification.getNumOfSegments(), notification.getNumOfReaders());
        notificationResults.add(notification);
    };
    SegmentNotifier segmentNotifier = (SegmentNotifier) readerGroup.getSegmentNotifier(executorService());
    segmentNotifier.registerListener(l1);
    // Read first event and validate notification.
    EventRead<String> event1 = reader1.readNextEvent(5000);
    assertEquals("data1", event1.getEvent());
    segmentNotifier.pollNow();
    SegmentNotification initialSegmentNotification = notificationResults.take();
    assertNotNull(initialSegmentNotification);
    assertEquals(1, initialSegmentNotification.getNumOfReaders());
    assertEquals(1, initialSegmentNotification.getNumOfSegments());
    EventRead<String> emptyEvent = reader1.readNextEvent(0);
    assertNull(emptyEvent.getEvent());
    assertFalse(emptyEvent.isCheckpoint());
    readerGroup.initiateCheckpoint("cp", executorService());
    EventRead<String> cpEvent = reader1.readNextEvent(1000);
    assertTrue(cpEvent.isCheckpoint());
    // Read second event and validate notification.
    EventRead<String> event2 = reader1.readNextEvent(10000);
    assertEquals("data2", event2.getEvent());
    segmentNotifier.pollNow();
    SegmentNotification segmentNotificationPostScale = notificationResults.take();
    assertEquals(1, segmentNotificationPostScale.getNumOfReaders());
    assertEquals(2, segmentNotificationPostScale.getNumOfSegments());
}