Examples with ClientFactory io.pravega.client.ClientFactory used on opensource projects

Example 11 with ClientFactory

use of io.pravega.client.ClientFactory 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().scope(SCOPE).streamName(streamName).scalingPolicy(ScalingPolicy.byEventRate(10, 2, 1)).build();
    Controller controller = controllerWrapper.getController();
    controllerWrapper.getControllerService().createScope(SCOPE).get();
    controller.createStream(config).get();
    @Cleanup ConnectionFactory connectionFactory = new ConnectionFactoryImpl(ClientConfig.builder().controllerURI(URI.create("tcp://localhost")).build());
    @Cleanup ClientFactory 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(0), map, executor).getFuture().get();
    assertTrue(result);
    writer.writeEvent("0", "data2").get();
    @Cleanup ReaderGroupManager groupManager = new ReaderGroupManagerImpl(SCOPE, controller, clientFactory, connectionFactory);
    ReaderGroup readerGroup = groupManager.createReaderGroup("reader", ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream(Stream.of(SCOPE, streamName)).build());
    @Cleanup EventStreamReader<String> reader1 = clientFactory.createReader("readerId", "reader", new JavaSerializer<>(), ReaderConfig.builder().build());
    // Add segment event listener
    Listener<SegmentNotification> l1 = notification -> {
        listenerInvoked.set(true);
        numberOfReaders.set(notification.getNumOfReaders());
        numberOfSegments.set(notification.getNumOfSegments());
        listenerLatch.release();
    };
    readerGroup.getSegmentNotifier(executor).registerListener(l1);
    EventRead<String> event1 = reader1.readNextEvent(15000);
    EventRead<String> event2 = reader1.readNextEvent(15000);
    assertNotNull(event1);
    assertEquals("data1", event1.getEvent());
    assertNotNull(event2);
    assertEquals("data2", event2.getEvent());
    listenerLatch.await();
    assertTrue("Listener invoked", listenerInvoked.get());
    assertEquals(2, numberOfSegments.get());
    assertEquals(1, numberOfReaders.get());
}

Example 12 with ClientFactory

use of io.pravega.client.ClientFactory in project pravega by pravega.

the class UnreadBytesTest method testUnreadBytes.

@Test(timeout = 50000)
public void testUnreadBytes() throws Exception {
    StreamConfiguration config = StreamConfiguration.builder().scope("unreadbytes").streamName("unreadbytes").scalingPolicy(ScalingPolicy.byEventRate(10, 2, 1)).build();
    Controller controller = controllerWrapper.getController();
    controllerWrapper.getControllerService().createScope("unreadbytes").get();
    controller.createStream(config).get();
    @Cleanup ClientFactory clientFactory = ClientFactory.withScope("unreadbytes", ClientConfig.builder().controllerURI(controllerUri).build());
    @Cleanup EventStreamWriter<String> writer = clientFactory.createEventWriter("unreadbytes", new JavaSerializer<>(), EventWriterConfig.builder().build());
    @Cleanup ReaderGroupManager groupManager = ReaderGroupManager.withScope("unreadbytes", ClientConfig.builder().controllerURI(controllerUri).build());
    ReaderGroup readerGroup = groupManager.createReaderGroup("group", ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream("unreadbytes/unreadbytes").build());
    @Cleanup EventStreamReader<String> reader = clientFactory.createReader("readerId", "group", new JavaSerializer<>(), ReaderConfig.builder().build());
    long unreadBytes = readerGroup.getMetrics().unreadBytes();
    assertTrue("Unread bvtes: " + unreadBytes, unreadBytes == 0);
    writer.writeEvent("0", "data of size 30").get();
    writer.writeEvent("0", "data of size 30").get();
    EventRead<String> firstEvent = reader.readNextEvent(15000);
    EventRead<String> secondEvent = reader.readNextEvent(15000);
    assertNotNull(firstEvent);
    assertEquals("data of size 30", firstEvent.getEvent());
    assertNotNull(secondEvent);
    assertEquals("data of size 30", secondEvent.getEvent());
    // trigger a checkpoint.
    CompletableFuture<Checkpoint> chkPointResult = readerGroup.initiateCheckpoint("test", executor);
    EventRead<String> chkpointEvent = reader.readNextEvent(15000);
    assertEquals("test", chkpointEvent.getCheckpointName());
    chkPointResult.join();
    unreadBytes = readerGroup.getMetrics().unreadBytes();
    assertTrue("Unread bvtes: " + unreadBytes, unreadBytes == 0);
    writer.writeEvent("0", "data of size 30").get();
    unreadBytes = readerGroup.getMetrics().unreadBytes();
    assertTrue("Unread bytes: " + unreadBytes, unreadBytes == 30);
}

Example 13 with ClientFactory

use of io.pravega.client.ClientFactory in project pravega by pravega.

the class EventProcessorTest method testEventProcessor.

@Test(timeout = 60000)
public void testEventProcessor() throws Exception {
    @Cleanup TestingServer zkTestServer = new TestingServerStarter().start();
    ServiceBuilder serviceBuilder = ServiceBuilder.newInMemoryBuilder(ServiceBuilderConfig.getDefaultConfig());
    serviceBuilder.initialize();
    StreamSegmentStore store = serviceBuilder.createStreamSegmentService();
    int servicePort = TestUtils.getAvailableListenPort();
    @Cleanup PravegaConnectionListener server = new PravegaConnectionListener(false, servicePort, store);
    server.startListening();
    int controllerPort = TestUtils.getAvailableListenPort();
    @Cleanup ControllerWrapper controllerWrapper = new ControllerWrapper(zkTestServer.getConnectString(), true, controllerPort, "localhost", servicePort, 4);
    controllerWrapper.awaitRunning();
    Controller controller = controllerWrapper.getController();
    // Create controller object for testing against a separate controller process.
    // ControllerImpl controller = new ControllerImpl("localhost", 9090);
    final String host = "host";
    final String scope = "controllerScope";
    final String streamName = "stream1";
    final String readerGroup = "readerGroup";
    final CompletableFuture<Boolean> createScopeStatus = controller.createScope(scope);
    if (!createScopeStatus.join()) {
        throw new RuntimeException("Scope already existed");
    }
    final StreamConfiguration config = StreamConfiguration.builder().scope(scope).streamName(streamName).scalingPolicy(ScalingPolicy.fixed(1)).build();
    System.err.println(String.format("Creating stream (%s, %s)", scope, streamName));
    CompletableFuture<Boolean> createStatus = controller.createStream(config);
    if (!createStatus.get()) {
        System.err.println("Stream alrady existed, exiting");
        return;
    }
    @Cleanup ConnectionFactoryImpl connectionFactory = new ConnectionFactoryImpl(ClientConfig.builder().build());
    @Cleanup ClientFactory clientFactory = new ClientFactoryImpl(scope, controller, connectionFactory);
    @Cleanup EventStreamWriter<TestEvent> producer = clientFactory.createEventWriter(streamName, new JavaSerializer<>(), EventWriterConfig.builder().build());
    int[] input = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
    int expectedSum = input.length * (input.length + 1) / 2;
    for (int i = 0; i < input.length; i++) {
        producer.writeEvent("key", new TestEvent(input[i]));
    }
    producer.writeEvent("key", new TestEvent(-1));
    producer.flush();
    EventProcessorSystem system = new EventProcessorSystemImpl("Controller", host, scope, new ClientFactoryImpl(scope, controller, connectionFactory), new ReaderGroupManagerImpl(scope, controller, clientFactory, connectionFactory));
    CheckpointConfig.CheckpointPeriod period = CheckpointConfig.CheckpointPeriod.builder().numEvents(1).numSeconds(1).build();
    CheckpointConfig checkpointConfig = CheckpointConfig.builder().type(CheckpointConfig.Type.Periodic).checkpointPeriod(period).build();
    EventProcessorGroupConfig eventProcessorGroupConfig = EventProcessorGroupConfigImpl.builder().eventProcessorCount(1).readerGroupName(readerGroup).streamName(streamName).checkpointConfig(checkpointConfig).build();
    CompletableFuture<Long> result = new CompletableFuture<>();
    // Test case 1. Actor does not throw any exception during normal operation.
    EventProcessorConfig<TestEvent> eventProcessorConfig = EventProcessorConfig.<TestEvent>builder().supplier(() -> new TestEventProcessor(false, result)).serializer(new JavaSerializer<>()).decider((Throwable e) -> ExceptionHandler.Directive.Stop).config(eventProcessorGroupConfig).build();
    @Cleanup EventProcessorGroup<TestEvent> eventProcessorGroup = system.createEventProcessorGroup(eventProcessorConfig, CheckpointStoreFactory.createInMemoryStore());
    Long value = result.join();
    Assert.assertEquals(expectedSum, value.longValue());
    log.info("SUCCESS: received expected sum = " + expectedSum);
}

Example 14 with ClientFactory

use of io.pravega.client.ClientFactory in project pravega by pravega.

the class EndToEndChannelLeakTest method testDetectChannelLeakSegmentSealed.

@Test(timeout = 30000)
public void testDetectChannelLeakSegmentSealed() throws Exception {
    StreamConfiguration config = StreamConfiguration.builder().scope(SCOPE).streamName(STREAM_NAME).scalingPolicy(ScalingPolicy.byEventRate(10, 2, 1)).build();
    Controller controller = controllerWrapper.getController();
    controllerWrapper.getControllerService().createScope(SCOPE).get();
    controller.createStream(config).get();
    @Cleanup ConnectionFactoryImpl connectionFactory = new ConnectionFactoryImpl(ClientConfig.builder().build());
    @Cleanup ClientFactory clientFactory = new ClientFactoryImpl(SCOPE, controller, connectionFactory);
    // Create a writer.
    @Cleanup EventStreamWriter<String> writer = clientFactory.createEventWriter(SCOPE, new JavaSerializer<>(), EventWriterConfig.builder().build());
    @Cleanup ReaderGroupManager groupManager = new ReaderGroupManagerImpl(SCOPE, controller, clientFactory, connectionFactory);
    groupManager.createReaderGroup(READER_GROUP, ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream(Stream.of(SCOPE, STREAM_NAME)).build());
    @Cleanup EventStreamReader<String> reader1 = clientFactory.createReader("readerId1", READER_GROUP, new JavaSerializer<>(), ReaderConfig.builder().build());
    // Write an event.
    writer.writeEvent("0", "zero").get();
    // Read an event.
    EventRead<String> event = reader1.readNextEvent(10000);
    assertNotNull(event);
    assertEquals("zero", event.getEvent());
    // scale
    Stream stream = new StreamImpl(SCOPE, SCOPE);
    Map<Double, Double> map = new HashMap<>();
    map.put(0.0, 0.33);
    map.put(0.33, 0.66);
    map.put(0.66, 1.0);
    Boolean result = controller.scaleStream(stream, Collections.singletonList(0), map, executor).getFuture().get();
    assertTrue(result);
    // Write more events.
    writer.writeEvent("0", "one").get();
    writer.writeEvent("0", "two").get();
    writer.writeEvent("1", "three").get();
    // store the open channel count before reading.
    int channelCount = connectionFactory.getActiveChannelCount();
    event = reader1.readNextEvent(10000);
    assertNotNull(event.getEvent());
    // Number of sockets will increase by 2 ( +3 for the new segments -1 since the older segment is sealed).
    assertEquals(channelCount + 2, connectionFactory.getActiveChannelCount());
    event = reader1.readNextEvent(10000);
    assertNotNull(event.getEvent());
    // no changes to socket count.
    assertEquals(channelCount + 2, connectionFactory.getActiveChannelCount());
    event = reader1.readNextEvent(10000);
    assertNotNull(event.getEvent());
    // no changes to socket count.
    assertEquals(channelCount + 2, connectionFactory.getActiveChannelCount());
}

Example 15 with ClientFactory

use of io.pravega.client.ClientFactory in project pravega by pravega.

the class EndToEndTxnWithScaleTest method testTxnWithScale.

@Test(timeout = 10000)
public void testTxnWithScale() throws Exception {
    StreamConfiguration config = StreamConfiguration.builder().scope("test").streamName("test").scalingPolicy(ScalingPolicy.byEventRate(10, 2, 1)).build();
    Controller controller = controllerWrapper.getController();
    controllerWrapper.getControllerService().createScope("test").get();
    controller.createStream(config).get();
    @Cleanup ConnectionFactory connectionFactory = new ConnectionFactoryImpl(ClientConfig.builder().build());
    @Cleanup ClientFactory clientFactory = new ClientFactoryImpl("test", controller, connectionFactory);
    @Cleanup EventStreamWriter<String> test = clientFactory.createEventWriter("test", new JavaSerializer<>(), EventWriterConfig.builder().transactionTimeoutScaleGracePeriod(10000).transactionTimeoutTime(10000).build());
    Transaction<String> transaction = test.beginTxn();
    transaction.writeEvent("0", "txntest1");
    transaction.commit();
    // scale
    Stream stream = new StreamImpl("test", "test");
    Map<Double, Double> map = new HashMap<>();
    map.put(0.0, 0.33);
    map.put(0.33, 0.66);
    map.put(0.66, 1.0);
    Boolean result = controller.scaleStream(stream, Collections.singletonList(0), map, executorService).getFuture().get();
    assertTrue(result);
    transaction = test.beginTxn();
    transaction.writeEvent("0", "txntest2");
    transaction.commit();
    @Cleanup ReaderGroupManager groupManager = new ReaderGroupManagerImpl("test", controller, clientFactory, connectionFactory);
    groupManager.createReaderGroup("reader", ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream("test/test").build());
    @Cleanup EventStreamReader<String> reader = clientFactory.createReader("readerId", "reader", new JavaSerializer<>(), ReaderConfig.builder().build());
    EventRead<String> event = reader.readNextEvent(10000);
    assertNotNull(event);
    assertEquals("txntest1", event.getEvent());
    event = reader.readNextEvent(10000);
    assertNotNull(event);
    assertEquals("txntest2", event.getEvent());
}