Examples with EventProcessorGroupConfig io.pravega.controller.eventProcessor.EventProcessorGroupConfig used on opensource projects

Example 1 with EventProcessorGroupConfig

use of io.pravega.controller.eventProcessor.EventProcessorGroupConfig in project pravega by pravega.

the class EventProcessorTest method testEventProcessorCell.

@Test(timeout = 10000)
@SuppressWarnings("unchecked")
public void testEventProcessorCell() throws CheckpointStoreException, ReinitializationRequiredException {
    CheckpointStore checkpointStore = CheckpointStoreFactory.createInMemoryStore();
    CheckpointConfig.CheckpointPeriod period = CheckpointConfig.CheckpointPeriod.builder().numEvents(1).numSeconds(1).build();
    CheckpointConfig checkpointConfig = CheckpointConfig.builder().type(CheckpointConfig.Type.Periodic).checkpointPeriod(period).build();
    EventProcessorGroupConfig config = EventProcessorGroupConfigImpl.builder().eventProcessorCount(1).readerGroupName(READER_GROUP).streamName(STREAM_NAME).checkpointConfig(checkpointConfig).build();
    int[] input = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
    int expectedSum = input.length * (input.length + 1) / 2;
    List<MockEventRead<TestEvent>> inputEvents = new ArrayList<>(input.length);
    for (int i = 0; i < input.length; i++) {
        inputEvents.add(new MockEventRead<>(i, new TestEvent(input[i])));
    }
    inputEvents.add(new MockEventRead<>(input.length, new TestEvent(-1)));
    EventProcessorSystem system = Mockito.mock(EventProcessorSystem.class);
    Mockito.when(system.getProcess()).thenReturn(PROCESS);
    EventStreamReader<TestEvent> reader = Mockito.mock(EventStreamReader.class);
    checkpointStore.addReaderGroup(PROCESS, READER_GROUP);
    // Test case 1. Actor does not throw any exception during normal operation.
    Mockito.when(reader.readNextEvent(anyLong())).thenAnswer(new SequenceAnswer<>(inputEvents));
    EventProcessorConfig<TestEvent> eventProcessorConfig = EventProcessorConfig.<TestEvent>builder().supplier(() -> new TestEventProcessor(false)).serializer(new JavaSerializer<>()).decider((Throwable e) -> ExceptionHandler.Directive.Stop).config(config).build();
    testEventProcessor(system, eventProcessorConfig, reader, READER_ID, checkpointStore, expectedSum);
    // Test case 2. Actor throws an error during normal operation, and Directive is to Resume on error.
    Mockito.when(reader.readNextEvent(anyLong())).thenAnswer(new SequenceAnswer<>(inputEvents));
    eventProcessorConfig = EventProcessorConfig.<TestEvent>builder().supplier(() -> new TestEventProcessor(true)).serializer(new JavaSerializer<>()).decider((Throwable e) -> (e instanceof IllegalArgumentException) ? ExceptionHandler.Directive.Resume : ExceptionHandler.Directive.Stop).config(config).build();
    testEventProcessor(system, eventProcessorConfig, reader, READER_ID, checkpointStore, expectedSum);
    // Test case 3. Actor throws an error during normal operation, and Directive is to Restart on error.
    Mockito.when(reader.readNextEvent(anyLong())).thenAnswer(new SequenceAnswer<>(inputEvents));
    eventProcessorConfig = EventProcessorConfig.<TestEvent>builder().supplier(() -> new TestEventProcessor(true)).serializer(new JavaSerializer<>()).decider((Throwable e) -> (e instanceof IllegalArgumentException) ? ExceptionHandler.Directive.Restart : ExceptionHandler.Directive.Stop).config(config).build();
    testEventProcessor(system, eventProcessorConfig, reader, READER_ID, checkpointStore, 0);
    // Test case 3. Actor throws an error during normal operation, and Directive is to Restart on error.
    Mockito.when(reader.readNextEvent(anyLong())).thenAnswer(new SequenceAnswer<>(inputEvents));
    eventProcessorConfig = EventProcessorConfig.<TestEvent>builder().supplier(() -> new RestartFailingEventProcessor(true)).serializer(new JavaSerializer<>()).decider((Throwable e) -> (e instanceof IllegalArgumentException) ? ExceptionHandler.Directive.Restart : ExceptionHandler.Directive.Stop).config(config).build();
    testEventProcessor(system, eventProcessorConfig, reader, READER_ID, checkpointStore, 3);
    // Test case 5. startup fails for an event processor
    eventProcessorConfig = EventProcessorConfig.<TestEvent>builder().supplier(StartFailingEventProcessor::new).serializer(new JavaSerializer<>()).decider((Throwable e) -> ExceptionHandler.Directive.Stop).config(config).build();
    checkpointStore.addReader(PROCESS, READER_GROUP, READER_ID);
    EventProcessorCell<TestEvent> cell = new EventProcessorCell<>(eventProcessorConfig, reader, new EventStreamWriterMock<>(), system.getProcess(), READER_ID, 0, checkpointStore);
    cell.startAsync();
    cell.awaitTerminated();
    Assert.assertTrue(true);
}

Example 2 with EventProcessorGroupConfig

use of io.pravega.controller.eventProcessor.EventProcessorGroupConfig in project pravega by pravega.

the class EventProcessorTest method testEventProcessorGroup.

@Test(timeout = 10000)
public void testEventProcessorGroup() throws CheckpointStoreException, ReinitializationRequiredException {
    int count = 4;
    int initialCount = count / 2;
    String systemName = "testSystem";
    String readerGroupName = "testReaderGroup";
    int[] input = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
    int expectedSum = input.length * (input.length + 1) / 2;
    CheckpointStore checkpointStore = CheckpointStoreFactory.createInMemoryStore();
    EventProcessorGroupConfig config = createEventProcessorGroupConfig(initialCount);
    EventProcessorSystemImpl system = createMockSystem(systemName, PROCESS, SCOPE, createEventReaders(count, input), new EventStreamWriterMock<>(), readerGroupName);
    EventProcessorConfig<TestEvent> eventProcessorConfig = EventProcessorConfig.<TestEvent>builder().supplier(() -> new TestEventProcessor(false)).serializer(new JavaSerializer<>()).decider((Throwable e) -> ExceptionHandler.Directive.Stop).config(config).build();
    // Create EventProcessorGroup.
    EventProcessorGroupImpl<TestEvent> group = (EventProcessorGroupImpl<TestEvent>) system.createEventProcessorGroup(eventProcessorConfig, checkpointStore);
    group.awaitRunning();
    // Add a few event processors to the group.
    group.changeEventProcessorCount(count - initialCount);
    long actualSum = 0;
    for (EventProcessorCell<TestEvent> cell : group.getEventProcessorMap().values()) {
        cell.awaitTerminated();
        TestEventProcessor actor = (TestEventProcessor) cell.getActor();
        actualSum += actor.sum;
    }
    assertEquals(count * expectedSum, actualSum);
    // Stop the group, and await its termmination.
    group.stopAsync();
    group.awaitTerminated();
}

Example 3 with EventProcessorGroupConfig

use of io.pravega.controller.eventProcessor.EventProcessorGroupConfig 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 4 with EventProcessorGroupConfig

use of io.pravega.controller.eventProcessor.EventProcessorGroupConfig in project pravega by pravega.

the class StreamTransactionMetadataTasksTest method createEventProcessor.

private <T extends ControllerEvent> void createEventProcessor(final String readerGroupName, final String streamName, final EventStreamReader<T> reader, final EventStreamWriter<T> writer, Supplier<EventProcessor<T>> factory) throws CheckpointStoreException {
    ClientFactory clientFactory = Mockito.mock(ClientFactory.class);
    Mockito.when(clientFactory.<T>createReader(anyString(), anyString(), any(), any())).thenReturn(reader);
    Mockito.when(clientFactory.<T>createEventWriter(anyString(), any(), any())).thenReturn(writer);
    ReaderGroup readerGroup = Mockito.mock(ReaderGroup.class);
    Mockito.when(readerGroup.getGroupName()).thenReturn(readerGroupName);
    ReaderGroupManager readerGroupManager = Mockito.mock(ReaderGroupManager.class);
    Mockito.when(readerGroupManager.createReaderGroup(anyString(), any(ReaderGroupConfig.class))).then(invocation -> readerGroup);
    EventProcessorSystemImpl system = new EventProcessorSystemImpl("system", "host", SCOPE, clientFactory, readerGroupManager);
    EventProcessorGroupConfig eventProcessorConfig = EventProcessorGroupConfigImpl.builder().eventProcessorCount(1).readerGroupName(readerGroupName).streamName(streamName).checkpointConfig(CheckpointConfig.periodic(1, 1)).build();
    EventProcessorConfig<T> config = EventProcessorConfig.<T>builder().config(eventProcessorConfig).decider(ExceptionHandler.DEFAULT_EXCEPTION_HANDLER).serializer(new JavaSerializer<>()).supplier(factory).build();
    system.createEventProcessorGroup(config, CheckpointStoreFactory.createInMemoryStore());
}

Example 5 with EventProcessorGroupConfig

use of io.pravega.controller.eventProcessor.EventProcessorGroupConfig in project pravega by pravega.

the class EventProcessorTest method testFailingEventProcessorInGroup.

@Test(timeout = 10000)
public void testFailingEventProcessorInGroup() throws ReinitializationRequiredException, CheckpointStoreException {
    String systemName = "testSystem";
    String readerGroupName = "testReaderGroup";
    int[] input = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
    CheckpointStore checkpointStore = CheckpointStoreFactory.createInMemoryStore();
    EventProcessorGroupConfig config = createEventProcessorGroupConfig(1);
    EventProcessorSystemImpl system = createMockSystem(systemName, PROCESS, SCOPE, createEventReaders(1, input), new EventStreamWriterMock<>(), readerGroupName);
    EventProcessorConfig<TestEvent> eventProcessorConfig = EventProcessorConfig.<TestEvent>builder().supplier(StartFailingEventProcessor::new).serializer(new JavaSerializer<>()).decider((Throwable e) -> ExceptionHandler.Directive.Stop).config(config).build();
    // Create EventProcessorGroup.
    EventProcessorGroupImpl<TestEvent> group = (EventProcessorGroupImpl<TestEvent>) system.createEventProcessorGroup(eventProcessorConfig, checkpointStore);
    // awaitRunning should succeed.
    group.awaitRunning();
    Assert.assertTrue(true);
}