Examples with StreamImpl io.pravega.client.stream.impl.StreamImpl used on opensource projects

Example 61 with StreamImpl

use of io.pravega.client.stream.impl.StreamImpl in project pravega by pravega.

the class EndToEndTruncationTest method testTruncationOffsets.

@Test(timeout = 7000)
public void testTruncationOffsets() throws InterruptedException, ExecutionException, TimeoutException, TruncatedDataException, ReinitializationRequiredException {
    String scope = "scope";
    String streamName = "testTruncationOffsets";
    String testString = "Hello world\n";
    LocalController controller = (LocalController) PRAVEGA.getLocalController();
    controller.createScope(scope).join();
    controller.createStream(scope, streamName, StreamConfiguration.builder().build()).join();
    ClientConfig clientConfig = ClientConfig.builder().controllerURI(PRAVEGA.getControllerURI()).build();
    @Cleanup ConnectionFactory connectionFactory = new SocketConnectionFactoryImpl(clientConfig);
    @Cleanup ClientFactoryImpl clientFactory = new ClientFactoryImpl(scope, controller, connectionFactory);
    Serializer<String> serializer = new JavaSerializer<>();
    @Cleanup EventStreamWriter<String> producer = clientFactory.createEventWriter(streamName, serializer, EventWriterConfig.builder().build());
    Future<Void> ack = producer.writeEvent(testString);
    ack.get(5, TimeUnit.SECONDS);
    SegmentMetadataClientFactory metadataClientFactory = new SegmentMetadataClientFactoryImpl(controller, clientFactory.getConnectionPool());
    @Cleanup ReaderGroupManager readerGroupManager = ReaderGroupManager.withScope(scope, clientConfig);
    Segment segment = new Segment(scope, streamName, 0);
    @Cleanup SegmentMetadataClient metadataClient = metadataClientFactory.createSegmentMetadataClient(segment, DelegationTokenProviderFactory.createWithEmptyToken());
    assertEquals(0, metadataClient.getSegmentInfo().join().getStartingOffset());
    long writeOffset = metadataClient.getSegmentInfo().join().getWriteOffset();
    assertEquals(writeOffset, metadataClient.fetchCurrentSegmentLength().join().longValue());
    assertTrue(metadataClient.getSegmentInfo().join().getWriteOffset() > testString.length());
    metadataClient.truncateSegment(writeOffset).join();
    assertEquals(writeOffset, metadataClient.getSegmentInfo().join().getStartingOffset());
    assertEquals(writeOffset, metadataClient.getSegmentInfo().join().getWriteOffset());
    assertEquals(writeOffset, metadataClient.fetchCurrentSegmentLength().join().longValue());
    ack = producer.writeEvent(testString);
    ack.get(5, TimeUnit.SECONDS);
    String group = "testTruncationOffsets-group";
    ReaderGroupConfig groupConfig = ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream(new StreamImpl(scope, streamName)).build();
    readerGroupManager.createReaderGroup(group, groupConfig);
    @Cleanup EventStreamReader<String> reader = clientFactory.createReader("reader", group, serializer, ReaderConfig.builder().build());
    AssertExtensions.assertThrows(TruncatedDataException.class, () -> reader.readNextEvent(2000));
    EventRead<String> event = reader.readNextEvent(2000);
    assertEquals(testString, event.getEvent());
    event = reader.readNextEvent(100);
    assertEquals(null, event.getEvent());
}

Example 62 with StreamImpl

use of io.pravega.client.stream.impl.StreamImpl in project pravega by pravega.

the class EndToEndTruncationTest method testTruncation.

@Test(timeout = 60000)
public void testTruncation() throws Exception {
    StreamConfiguration config = StreamConfiguration.builder().scalingPolicy(ScalingPolicy.byEventRate(10, 2, 2)).build();
    String streamName = "testTruncation";
    @Cleanup StreamManager streamManager = StreamManager.create(PRAVEGA.getControllerURI());
    String scope = "test";
    streamManager.createScope(scope);
    streamManager.createStream(scope, streamName, config);
    ClientConfig clientConfig = ClientConfig.builder().controllerURI(PRAVEGA.getControllerURI()).build();
    @Cleanup ConnectionFactory connectionFactory = new SocketConnectionFactoryImpl(clientConfig);
    @Cleanup EventStreamClientFactory clientFactory = EventStreamClientFactory.withScope(scope, ClientConfig.builder().controllerURI(PRAVEGA.getControllerURI()).build());
    @Cleanup EventStreamWriter<String> writer = clientFactory.createEventWriter(streamName, new JavaSerializer<>(), EventWriterConfig.builder().build());
    writer.writeEvent("0", "truncationTest1").get();
    // scale
    Stream stream = new StreamImpl("test", streamName);
    Map<Double, Double> map = new HashMap<>();
    map.put(0.0, 0.33);
    map.put(0.33, 0.66);
    map.put(0.66, 1.0);
    LocalController controller = (LocalController) PRAVEGA.getLocalController();
    Boolean result = controller.scaleStream(stream, Lists.newArrayList(0L, 1L), map, executorService()).getFuture().get();
    assertTrue(result);
    writer.writeEvent("0", "truncationTest2").get();
    Map<Long, Long> streamCutPositions = new HashMap<>();
    streamCutPositions.put(computeSegmentId(2, 1), 0L);
    streamCutPositions.put(computeSegmentId(3, 1), 0L);
    streamCutPositions.put(computeSegmentId(4, 1), 0L);
    controller.truncateStream(stream.getScope(), stream.getStreamName(), streamCutPositions).join();
    String group = "testTruncation-group";
    @Cleanup ReaderGroupManager groupManager = new ReaderGroupManagerImpl("test", clientConfig, connectionFactory);
    groupManager.createReaderGroup(group, ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream("test/" + streamName).build());
    @Cleanup EventStreamReader<String> reader = clientFactory.createReader("readerId", group, new JavaSerializer<>(), ReaderConfig.builder().build());
    EventRead<String> event = reader.readNextEvent(10000);
    assertNotNull(event);
    assertEquals("truncationTest2", event.getEvent());
    event = reader.readNextEvent(1000);
    assertNull(event.getEvent());
}

Example 63 with StreamImpl

use of io.pravega.client.stream.impl.StreamImpl in project pravega by pravega.

the class EndToEndTruncationTest method testWriteDuringScaleAndTruncation.

@Test(timeout = 50000)
public void testWriteDuringScaleAndTruncation() throws Exception {
    String streamName = "testWriteDuringScaleAndTruncation";
    Stream stream = new StreamImpl("test", streamName);
    StreamConfiguration config = StreamConfiguration.builder().scalingPolicy(ScalingPolicy.byEventRate(10, 2, 2)).build();
    LocalController controller = (LocalController) PRAVEGA.getLocalController();
    controller.createScope("test").get();
    controller.createStream("test", streamName, config).get();
    config = StreamConfiguration.builder().scalingPolicy(ScalingPolicy.byEventRate(10, 2, 1)).build();
    controller.updateStream("test", streamName, config).get();
    @Cleanup ConnectionFactory connectionFactory = new SocketConnectionFactoryImpl(ClientConfig.builder().controllerURI(PRAVEGA.getControllerURI()).build());
    @Cleanup ClientFactoryImpl clientFactory = new ClientFactoryImpl("test", controller, connectionFactory);
    @Cleanup EventStreamWriter<String> writer = clientFactory.createEventWriter(streamName, new JavaSerializer<>(), EventWriterConfig.builder().build());
    // routing key "0" translates to key 0.8. This write happens to segment 1.
    writer.writeEvent("0", "truncationTest1").get();
    // Peform scaling operations on the stream.
    ImmutableMap<Double, Double> singleSegmentKeyRange = ImmutableMap.of(0.0, 1.0);
    ImmutableMap<Double, Double> twoSegmentKeyRange = ImmutableMap.of(0.0, 0.5, 0.5, 1.0);
    // scale down to 1 segment.
    assertTrue("Stream Scale down", controller.scaleStream(stream, Lists.newArrayList(0L, 1L), singleSegmentKeyRange, executorService()).getFuture().get());
    // scale up to 2 segments.
    assertTrue("Stream Scale up", controller.scaleStream(stream, Lists.newArrayList(computeSegmentId(2, 1)), twoSegmentKeyRange, executorService()).getFuture().get());
    // scale down to 1 segment.
    assertTrue("Stream Scale down", controller.scaleStream(stream, Lists.newArrayList(computeSegmentId(3, 2), computeSegmentId(4, 2)), singleSegmentKeyRange, executorService()).getFuture().get());
    // scale up to 2 segments.
    assertTrue("Stream Scale up", controller.scaleStream(stream, Lists.newArrayList(computeSegmentId(5, 3)), twoSegmentKeyRange, executorService()).getFuture().get());
    // truncateStream.
    Map<Long, Long> streamCutPositions = new HashMap<>();
    streamCutPositions.put(computeSegmentId(3, 2), 0L);
    streamCutPositions.put(computeSegmentId(4, 2), 0L);
    assertTrue("Truncate stream", controller.truncateStream("test", streamName, streamCutPositions).get());
    // write an event.
    writer.writeEvent("0", "truncationTest3");
    writer.flush();
    // Read the event back.
    String group = "testWriteDuringScaleAndTruncation-group";
    @Cleanup ReaderGroupManager groupManager = new ReaderGroupManagerImpl("test", controller, clientFactory);
    groupManager.createReaderGroup(group, ReaderGroupConfig.builder().disableAutomaticCheckpoints().groupRefreshTimeMillis(0).stream("test/" + streamName).build());
    @Cleanup EventStreamReader<String> reader = clientFactory.createReader("readerId", group, new JavaSerializer<>(), ReaderConfig.builder().build());
    EventRead<String> event = reader.readNextEvent(200);
    assertNull(event.getEvent());
    groupManager.getReaderGroup(group).initiateCheckpoint("cp1", executorService());
    event = reader.readNextEvent(2000);
    assertEquals("cp1", event.getCheckpointName());
    event = reader.readNextEvent(200);
    assertNull(event.getEvent());
    groupManager.getReaderGroup(group).initiateCheckpoint("cp2", executorService());
    event = reader.readNextEvent(2000);
    assertEquals("cp2", event.getCheckpointName());
    event = reader.readNextEvent(10000);
    assertEquals("truncationTest3", event.getEvent());
}

Example 64 with StreamImpl

use of io.pravega.client.stream.impl.StreamImpl in project pravega by pravega.

the class EndToEndTxnWithTest method scaleUpStream.

private void scaleUpStream(String streamName) throws InterruptedException, java.util.concurrent.ExecutionException {
    Stream stream = new StreamImpl("test", streamName);
    Map<Double, Double> map = new HashMap<>();
    map.put(0.0, 0.5);
    map.put(0.5, 1.0);
    Boolean result = PRAVEGA.getLocalController().scaleStream(stream, Collections.singletonList(0L), map, executorService()).getFuture().get();
    assertTrue(result);
}

Example 65 with StreamImpl

use of io.pravega.client.stream.impl.StreamImpl in project pravega by pravega.

the class EndToEndWithScaleTest method testScale.

@Test(timeout = 90000)
public void testScale() throws Exception {
    final String scope = "test";
    final String streamName = "test";
    StreamConfiguration config = StreamConfiguration.builder().scalingPolicy(ScalingPolicy.fixed(1)).build();
    // Test scale both in a new stream and in a re-created one.
    for (int i = 0; i < 2; i++) {
        @Cleanup 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", "txntest1" + i).get();
        // scale
        Stream stream = new StreamImpl(scope, streamName);
        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(i * 4L), map, executorService()).getFuture().get();
        assertTrue(result);
        writer.writeEvent("0", "txntest2" + i).get();
        @Cleanup ReaderGroupManager groupManager = new ReaderGroupManagerImpl(scope, controller, clientFactory);
        groupManager.createReaderGroup("reader" + i, ReaderGroupConfig.builder().disableAutomaticCheckpoints().groupRefreshTimeMillis(0).stream(Stream.of(scope, streamName).getScopedName()).build());
        @Cleanup EventStreamReader<String> reader = clientFactory.createReader("readerId" + i, "reader" + i, new JavaSerializer<>(), ReaderConfig.builder().build());
        EventRead<String> event = reader.readNextEvent(10000);
        assertNotNull(event.getEvent());
        assertEquals("txntest1" + i, event.getEvent());
        event = reader.readNextEvent(100);
        assertNull(event.getEvent());
        groupManager.getReaderGroup("reader" + i).initiateCheckpoint("cp" + i, executorService());
        event = reader.readNextEvent(10000);
        assertEquals("cp" + i, event.getCheckpointName());
        event = reader.readNextEvent(10000);
        assertEquals("txntest2" + i, event.getEvent());
        assertTrue(controller.sealStream(scope, streamName).join());
        assertTrue(controller.deleteStream(scope, streamName).join());
    }
}