Examples with TimeWindow io.pravega.client.stream.TimeWindow used on opensource projects

Example 6 with TimeWindow

use of io.pravega.client.stream.TimeWindow in project pravega by pravega.

the class EventStreamReaderTest method testTimeWindow.

@Test
public void testTimeWindow() throws SegmentSealedException {
    String scope = "scope";
    String streamName = "stream";
    Stream stream = Stream.of(scope, streamName);
    String groupName = "readerGroup";
    String readerGroupStream = NameUtils.getStreamForReaderGroup(groupName);
    String markStream = NameUtils.getMarkStreamForStream(streamName);
    // Create factories
    MockSegmentStreamFactory segmentStreamFactory = new MockSegmentStreamFactory();
    @Cleanup MockClientFactory clientFactory = new MockClientFactory(scope, segmentStreamFactory);
    MockController controller = (MockController) clientFactory.getController();
    @Cleanup InlineExecutor executor = new InlineExecutor();
    // Create streams
    controller.createScope(scope).join();
    controller.createStream(scope, streamName, StreamConfiguration.builder().scalingPolicy(ScalingPolicy.fixed(2)).build());
    controller.createStream(scope, readerGroupStream, StreamConfiguration.builder().scalingPolicy(ScalingPolicy.fixed(1)).build());
    // Reader group state synchronizer
    ReaderGroupConfig config = ReaderGroupConfig.builder().disableAutomaticCheckpoints().stream(stream).build();
    StateSynchronizer<ReaderGroupState> sync = clientFactory.createStateSynchronizer(readerGroupStream, new ReaderGroupStateUpdatesSerializer(), new ReaderGroupStateInitSerializer(), SynchronizerConfig.builder().build());
    // Watermark reader/writer
    @Cleanup RevisionedStreamClient<Watermark> markWriter = clientFactory.createRevisionedStreamClient(markStream, new WatermarkSerializer(), SynchronizerConfig.builder().build());
    @Cleanup WatermarkReaderImpl markReader = new WatermarkReaderImpl(stream, markWriter, executor);
    // Initialize reader group state
    Map<SegmentWithRange, Long> segments = ReaderGroupImpl.getSegmentsForStreams(controller, config);
    sync.initialize(new ReaderGroupState.ReaderGroupStateInit(config, segments, getEndSegmentsForStreams(config), false));
    // Data segment writers
    Segment segment1 = new Segment(scope, streamName, 0);
    Segment segment2 = new Segment(scope, streamName, 1);
    @Cleanup SegmentOutputStream stream1 = segmentStreamFactory.createOutputStreamForSegment(segment1, segmentSealedCallback, writerConfig, DelegationTokenProviderFactory.createWithEmptyToken());
    @Cleanup SegmentOutputStream stream2 = segmentStreamFactory.createOutputStreamForSegment(segment2, segmentSealedCallback, writerConfig, DelegationTokenProviderFactory.createWithEmptyToken());
    // Write stream data
    writeInt(stream1, 1);
    writeInt(stream2, 2);
    writeInt(stream2, 2);
    writeInt(stream2, 2);
    // Write mark data
    val r1 = new SegmentWithRange(segment1, 0, 0.5).convert();
    val r2 = new SegmentWithRange(segment2, 0.5, 1).convert();
    markWriter.writeUnconditionally(new Watermark(0L, 99L, ImmutableMap.of(r1, 0L, r2, 0L)));
    markWriter.writeUnconditionally(new Watermark(100L, 199L, ImmutableMap.of(r1, 12L, r2, 0L)));
    markWriter.writeUnconditionally(new Watermark(200L, 299L, ImmutableMap.of(r1, 12L, r2, 12L)));
    markWriter.writeUnconditionally(new Watermark(300L, 399L, ImmutableMap.of(r1, 12L, r2, 24L)));
    markWriter.writeUnconditionally(new Watermark(400L, 499L, ImmutableMap.of(r1, 12L, r2, 36L)));
    // Create reader
    AtomicLong clock = new AtomicLong();
    ReaderGroupStateManager groupState = new ReaderGroupStateManager(scope, groupName, "reader1", sync, controller, clock::get);
    groupState.initializeReader(0);
    @Cleanup EventStreamReaderImpl<byte[]> reader = new EventStreamReaderImpl<>(segmentStreamFactory, segmentStreamFactory, new ByteArraySerializer(), groupState, new Orderer(), clock::get, ReaderConfig.builder().build(), ImmutableMap.of(stream, markReader), Mockito.mock(Controller.class));
    clock.addAndGet(ReaderGroupStateManager.UPDATE_WINDOW.toNanos());
    EventRead<byte[]> event = reader.readNextEvent(100);
    assertEquals(2, readInt(event));
    TimeWindow timeWindow = reader.getCurrentTimeWindow(Stream.of(scope, streamName));
    assertEquals(0, timeWindow.getLowerTimeBound().longValue());
    assertEquals(199, timeWindow.getUpperTimeBound().longValue());
    clock.addAndGet(ReaderGroupStateManager.UPDATE_WINDOW.toNanos());
    event = reader.readNextEvent(100);
    assertEquals(1, readInt(event));
    timeWindow = reader.getCurrentTimeWindow(Stream.of(scope, streamName));
    assertEquals(0, timeWindow.getLowerTimeBound().longValue());
    assertEquals(299, timeWindow.getUpperTimeBound().longValue());
    clock.addAndGet(ReaderGroupStateManager.UPDATE_WINDOW.toNanos());
    event = reader.readNextEvent(100);
    assertEquals(2, readInt(event));
    timeWindow = reader.getCurrentTimeWindow(Stream.of(scope, streamName));
    assertEquals(200, timeWindow.getLowerTimeBound().longValue());
    assertEquals(399, timeWindow.getUpperTimeBound().longValue());
    clock.addAndGet(ReaderGroupStateManager.UPDATE_WINDOW.toNanos());
    event = reader.readNextEvent(100);
    assertEquals(2, readInt(event));
    timeWindow = reader.getCurrentTimeWindow(Stream.of(scope, streamName));
    assertEquals(300, timeWindow.getLowerTimeBound().longValue());
    assertEquals(499, timeWindow.getUpperTimeBound().longValue());
    clock.addAndGet(ReaderGroupStateManager.UPDATE_WINDOW.toNanos());
    event = reader.readNextEvent(100);
    assertEquals(null, event.getEvent());
    timeWindow = reader.getCurrentTimeWindow(Stream.of(scope, streamName));
    assertEquals(400, timeWindow.getLowerTimeBound().longValue());
    assertEquals(null, timeWindow.getUpperTimeBound());
}