Examples with Segment io.pravega.client.segment.impl.Segment used on opensource projects

Example 66 with Segment

use of io.pravega.client.segment.impl.Segment in project pravega by pravega.

the class EventStreamWriterTest method testSealInvokesFlushError.

@Test
public void testSealInvokesFlushError() throws SegmentSealedException {
    String scope = "scope";
    String streamName = "stream";
    StreamImpl stream = new StreamImpl(scope, streamName);
    Segment segment1 = new Segment(scope, streamName, 0);
    Segment segment2 = new Segment(scope, streamName, 1);
    EventWriterConfig config = EventWriterConfig.builder().build();
    // Setup Mocks.
    SegmentOutputStreamFactory streamFactory = Mockito.mock(SegmentOutputStreamFactory.class);
    Controller controller = Mockito.mock(Controller.class);
    FakeSegmentOutputStream outputStream1 = new FakeSegmentOutputStream(segment1);
    SegmentOutputStream outputStream2 = Mockito.mock(SegmentOutputStream.class);
    // Simulate a connection failure for inflight event re-write on segment2
    RetriesExhaustedException connectionFailure = new RetriesExhaustedException(new ConnectionFailedException("Connection drop"));
    Mockito.doAnswer(args -> {
        PendingEvent event = args.getArgument(0);
        if (event.getAckFuture() != null) {
            event.getAckFuture().completeExceptionally(connectionFailure);
        }
        return null;
    }).when(outputStream2).write(any());
    // A flush will throw a RetriesExhausted exception.
    Mockito.doThrow(connectionFailure).when(outputStream2).flush();
    // Enable mocks for the controller calls.
    Mockito.when(controller.getCurrentSegments(scope, streamName)).thenReturn(getSegmentsFuture(segment1));
    // Successor of segment1 is segment2
    Mockito.when(controller.getSuccessors(segment1)).thenReturn(getReplacement(segment1, segment2));
    Mockito.when(streamFactory.createOutputStreamForSegment(eq(segment1), any(), any(), any())).thenAnswer(i -> {
        outputStream1.callBackForSealed = i.getArgument(1);
        return outputStream1;
    });
    Mockito.when(streamFactory.createOutputStreamForSegment(eq(segment2), any(), any(), any())).thenReturn(outputStream2);
    // Start of test
    JavaSerializer<String> serializer = new JavaSerializer<>();
    @Cleanup EventStreamWriter<String> writer = new EventStreamWriterImpl<>(stream, "id", controller, streamFactory, serializer, config, executorService(), executorService(), null);
    // Write an event to the stream.
    CompletableFuture<Void> writerFuture = writer.writeEvent("Foo");
    Mockito.verify(controller).getCurrentSegments(any(), any());
    assertEquals(1, outputStream1.unacked.size());
    assertEquals(0, outputStream1.acked.size());
    // Simulate segment1 being sealed, now the writer will fetch its successor, segment2, from the Controller
    outputStream1.invokeSealedCallBack();
    // Verify that the inflight event which is written to segment2 due to sealed segment fails incase of a connection failure.
    AssertExtensions.assertThrows(RetriesExhaustedException.class, () -> Futures.getThrowingException(writerFuture));
    // Verify that a flush() does indicate this failure.
    AssertExtensions.assertThrows(RetriesExhaustedException.class, () -> writer.flush());
}

Example 67 with Segment

use of io.pravega.client.segment.impl.Segment in project pravega by pravega.

the class LargeEventWriterTest method testBufferSplitting.

@Test(timeout = 5000)
public void testBufferSplitting() throws NoSuchSegmentException, AuthenticationException, SegmentSealedException, ConnectionFailedException {
    Segment segment = Segment.fromScopedName("foo/bar/1");
    MockConnectionFactoryImpl connectionFactory = new MockConnectionFactoryImpl();
    MockController controller = new MockController("localhost", 0, connectionFactory, false);
    ClientConnection connection = Mockito.mock(ClientConnection.class);
    PravegaNodeUri location = new PravegaNodeUri("localhost", 0);
    connectionFactory.provideConnection(location, connection);
    ArrayList<ByteBuf> written = new ArrayList<>();
    answerRequest(connectionFactory, connection, location, CreateTransientSegment.class, r -> new SegmentCreated(r.getRequestId(), "transient-segment"));
    answerRequest(connectionFactory, connection, location, SetupAppend.class, r -> new AppendSetup(r.getRequestId(), segment.getScopedName(), r.getWriterId(), WireCommands.NULL_ATTRIBUTE_VALUE));
    answerRequest(connectionFactory, connection, location, ConditionalBlockEnd.class, r -> {
        ByteBuf data = r.getData();
        written.add(data);
        return new DataAppended(r.getRequestId(), r.getWriterId(), r.getEventNumber(), r.getEventNumber() - 1, r.getExpectedOffset() + data.readableBytes());
    });
    answerRequest(connectionFactory, connection, location, MergeSegments.class, r -> {
        return new SegmentsMerged(r.getRequestId(), r.getSource(), r.getTarget(), -1);
    });
    LargeEventWriter writer = new LargeEventWriter(writerId, controller, connectionFactory);
    EmptyTokenProviderImpl tokenProvider = new EmptyTokenProviderImpl();
    ArrayList<ByteBuffer> buffers = new ArrayList<>();
    buffers.add(ByteBuffer.allocate(Serializer.MAX_EVENT_SIZE * 2 + 1));
    buffers.add(ByteBuffer.allocate(Serializer.MAX_EVENT_SIZE));
    buffers.add(ByteBuffer.allocate(5));
    writer.writeLargeEvent(segment, buffers, tokenProvider, EventWriterConfig.builder().enableLargeEvents(true).build());
    assertEquals(4, written.size());
    assertEquals(Serializer.MAX_EVENT_SIZE, written.get(0).readableBytes());
    assertEquals(Serializer.MAX_EVENT_SIZE, written.get(1).readableBytes());
    assertEquals(Serializer.MAX_EVENT_SIZE, written.get(2).readableBytes());
    assertEquals(6 + WireCommands.TYPE_PLUS_LENGTH_SIZE * 3, written.get(3).readableBytes());
}

Example 68 with Segment

use of io.pravega.client.segment.impl.Segment in project pravega by pravega.

the class LargeEventWriterTest method testRetriedErrors.

@Test(timeout = 5000)
public void testRetriedErrors() throws ConnectionFailedException, NoSuchSegmentException, AuthenticationException, SegmentSealedException {
    Segment segment = Segment.fromScopedName("foo/bar/1");
    MockConnectionFactoryImpl connectionFactory = new MockConnectionFactoryImpl();
    MockController controller = new MockController("localhost", 0, connectionFactory, false);
    ClientConnection connection = Mockito.mock(ClientConnection.class);
    PravegaNodeUri location = new PravegaNodeUri("localhost", 0);
    connectionFactory.provideConnection(location, connection);
    EmptyTokenProviderImpl tokenProvider = new EmptyTokenProviderImpl();
    ArrayList<ByteBuffer> events = new ArrayList<>();
    events.add(ByteBuffer.allocate(1));
    AtomicBoolean failed = new AtomicBoolean(false);
    AtomicBoolean succeeded = new AtomicBoolean(false);
    answerRequest(connectionFactory, connection, location, SetupAppend.class, r -> new AppendSetup(r.getRequestId(), segment.getScopedName(), r.getWriterId(), WireCommands.NULL_ATTRIBUTE_VALUE));
    answerRequest(connectionFactory, connection, location, ConditionalBlockEnd.class, r -> {
        ByteBuf data = r.getData();
        return new DataAppended(r.getRequestId(), r.getWriterId(), r.getEventNumber(), r.getEventNumber() - 1, r.getExpectedOffset() + data.readableBytes());
    });
    answerRequest(connectionFactory, connection, location, MergeSegments.class, r -> {
        return new SegmentsMerged(r.getRequestId(), r.getSource(), r.getTarget(), -1);
    });
    Mockito.doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            CreateTransientSegment argument = (CreateTransientSegment) invocation.getArgument(0);
            failed.set(true);
            connectionFactory.getProcessor(location).process(new AuthTokenCheckFailed(argument.getRequestId(), "stacktrace", ErrorCode.TOKEN_EXPIRED));
            return null;
        }
    }).doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            CreateTransientSegment argument = (CreateTransientSegment) invocation.getArgument(0);
            succeeded.set(true);
            connectionFactory.getProcessor(location).process(new SegmentCreated(argument.getRequestId(), "transient-segment"));
            return null;
        }
    }).when(connection).send(any(CreateTransientSegment.class));
    LargeEventWriter writer = new LargeEventWriter(writerId, controller, connectionFactory);
    writer.writeLargeEvent(segment, events, tokenProvider, EventWriterConfig.builder().build());
    assertTrue(failed.getAndSet(false));
    assertTrue(succeeded.getAndSet(false));
    Mockito.doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            CreateTransientSegment argument = (CreateTransientSegment) invocation.getArgument(0);
            failed.set(true);
            connectionFactory.getProcessor(location).process(new WrongHost(argument.getRequestId(), "foo/bar/1", null, "stacktrace"));
            return null;
        }
    }).doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            CreateTransientSegment argument = (CreateTransientSegment) invocation.getArgument(0);
            succeeded.set(true);
            connectionFactory.getProcessor(location).process(new SegmentCreated(argument.getRequestId(), "transient-segment"));
            return null;
        }
    }).when(connection).send(any(CreateTransientSegment.class));
    writer = new LargeEventWriter(writerId, controller, connectionFactory);
    writer.writeLargeEvent(segment, events, tokenProvider, EventWriterConfig.builder().build());
    assertTrue(failed.getAndSet(false));
    assertTrue(succeeded.getAndSet(false));
    Mockito.doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            CreateTransientSegment argument = (CreateTransientSegment) invocation.getArgument(0);
            failed.set(true);
            connectionFactory.getProcessor(location).processingFailure(new ConnectionFailedException());
            return null;
        }
    }).doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            CreateTransientSegment argument = (CreateTransientSegment) invocation.getArgument(0);
            succeeded.set(true);
            connectionFactory.getProcessor(location).process(new SegmentCreated(argument.getRequestId(), "transient-segment"));
            return null;
        }
    }).when(connection).send(any(CreateTransientSegment.class));
    writer = new LargeEventWriter(writerId, controller, connectionFactory);
    writer.writeLargeEvent(segment, events, tokenProvider, EventWriterConfig.builder().build());
    assertTrue(failed.getAndSet(false));
    assertTrue(succeeded.getAndSet(false));
}

Example 69 with Segment

use of io.pravega.client.segment.impl.Segment in project pravega by pravega.

the class LargeEventWriterTest method testSegmentSealed.

@Test(timeout = 5000)
public void testSegmentSealed() throws ConnectionFailedException, SegmentSealedException {
    String scope = "scope";
    String streamName = "stream";
    StreamImpl stream = new StreamImpl(scope, streamName);
    Segment segment = new Segment(scope, streamName, 0);
    @Cleanup InlineExecutor executor = new InlineExecutor();
    EventWriterConfig config = EventWriterConfig.builder().enableLargeEvents(true).build();
    SegmentOutputStreamFactory streamFactory = Mockito.mock(SegmentOutputStreamFactory.class);
    MockConnectionFactoryImpl connectionFactory = new MockConnectionFactoryImpl();
    MockController controller = spy(new MockController("localhost", 0, connectionFactory, false));
    controller.createScope(scope).join();
    controller.createStream(scope, streamName, StreamConfiguration.builder().build());
    PravegaNodeUri location = new PravegaNodeUri("localhost", 0);
    ClientConnection connection = Mockito.mock(ClientConnection.class);
    connectionFactory.provideConnection(location, connection);
    SegmentOutputStream outputStream = Mockito.mock(SegmentOutputStream.class);
    Mockito.when(streamFactory.createOutputStreamForSegment(any(), any(), any(), any())).thenReturn(outputStream);
    AtomicBoolean failed = new AtomicBoolean(false);
    AtomicBoolean succeeded = new AtomicBoolean(false);
    Mockito.doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            CreateTransientSegment argument = (CreateTransientSegment) invocation.getArgument(0);
            failed.set(true);
            connectionFactory.getProcessor(location).process(new SegmentIsSealed(argument.getRequestId(), segment.getScopedName(), "stacktrace", 0));
            return null;
        }
    }).doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            CreateTransientSegment argument = (CreateTransientSegment) invocation.getArgument(0);
            succeeded.set(true);
            connectionFactory.getProcessor(location).process(new SegmentCreated(argument.getRequestId(), "transient-segment"));
            return null;
        }
    }).when(connection).send(any(CreateTransientSegment.class));
    Mockito.doAnswer(new Answer() {

        @Override
        public Object answer(InvocationOnMock invocation) throws Throwable {
            List<Long> predecessors = Arrays.asList(0L);
            return CompletableFuture.completedFuture(new StreamSegmentsWithPredecessors(ImmutableMap.of(new SegmentWithRange(new Segment(scope, streamName, NameUtils.computeSegmentId(1, 1)), 0.0, 0.5), predecessors, new SegmentWithRange(new Segment(scope, streamName, NameUtils.computeSegmentId(2, 1)), 0.5, 1.0), predecessors), ""));
        }
    }).when(controller).getSuccessors(segment);
    answerRequest(connectionFactory, connection, location, SetupAppend.class, r -> new AppendSetup(r.getRequestId(), segment.getScopedName(), r.getWriterId(), WireCommands.NULL_ATTRIBUTE_VALUE));
    answerRequest(connectionFactory, connection, location, ConditionalBlockEnd.class, r -> {
        ByteBuf data = r.getData();
        return new DataAppended(r.getRequestId(), r.getWriterId(), r.getEventNumber(), r.getEventNumber() - 1, r.getExpectedOffset() + data.readableBytes());
    });
    answerRequest(connectionFactory, connection, location, MergeSegments.class, r -> {
        return new SegmentsMerged(r.getRequestId(), r.getSource(), r.getTarget(), -1);
    });
    @Cleanup EventStreamWriter<byte[]> writer = new EventStreamWriterImpl<>(stream, "id", controller, streamFactory, new ByteArraySerializer(), config, executor, executor, connectionFactory);
    writer.writeEvent(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8 });
    writer.writeEvent(new byte[Serializer.MAX_EVENT_SIZE * 2]);
    assertTrue(failed.get());
    assertTrue(succeeded.get());
    InOrder order = Mockito.inOrder(connection, outputStream);
    order.verify(outputStream).write(any(PendingEvent.class));
    order.verify(outputStream).flush();
    order.verify(connection, times(2)).send(any(CreateTransientSegment.class));
    order.verify(connection).send(any(SetupAppend.class));
    order.verify(connection, times(3)).send(any(ConditionalBlockEnd.class));
    order.verify(connection).send(any(MergeSegments.class));
    order.verify(connection).close();
    order.verifyNoMoreInteractions();
}

Example 70 with Segment

use of io.pravega.client.segment.impl.Segment in project pravega by pravega.

the class LargeEventWriterTest method testEventStreamWriter.

@Test(timeout = 5000)
public void testEventStreamWriter() throws ConnectionFailedException, SegmentSealedException {
    String scope = "scope";
    String streamName = "stream";
    StreamImpl stream = new StreamImpl(scope, streamName);
    Segment segment = new Segment(scope, streamName, 0);
    @Cleanup InlineExecutor executor = new InlineExecutor();
    EventWriterConfig config = EventWriterConfig.builder().enableLargeEvents(true).build();
    SegmentOutputStreamFactory streamFactory = Mockito.mock(SegmentOutputStreamFactory.class);
    MockConnectionFactoryImpl connectionFactory = new MockConnectionFactoryImpl();
    MockController controller = new MockController("localhost", 0, connectionFactory, false);
    controller.createScope(scope).join();
    controller.createStream(scope, streamName, StreamConfiguration.builder().build());
    PravegaNodeUri location = new PravegaNodeUri("localhost", 0);
    ClientConnection connection = Mockito.mock(ClientConnection.class);
    connectionFactory.provideConnection(location, connection);
    SegmentOutputStream outputStream = Mockito.mock(SegmentOutputStream.class);
    Mockito.when(streamFactory.createOutputStreamForSegment(eq(segment), any(), any(), any())).thenReturn(outputStream);
    answerRequest(connectionFactory, connection, location, CreateTransientSegment.class, r -> new SegmentCreated(r.getRequestId(), "transient-segment"));
    answerRequest(connectionFactory, connection, location, SetupAppend.class, r -> new AppendSetup(r.getRequestId(), segment.getScopedName(), r.getWriterId(), WireCommands.NULL_ATTRIBUTE_VALUE));
    answerRequest(connectionFactory, connection, location, ConditionalBlockEnd.class, r -> {
        ByteBuf data = r.getData();
        return new DataAppended(r.getRequestId(), r.getWriterId(), r.getEventNumber(), r.getEventNumber() - 1, r.getExpectedOffset() + data.readableBytes());
    });
    answerRequest(connectionFactory, connection, location, MergeSegments.class, r -> {
        return new SegmentsMerged(r.getRequestId(), r.getSource(), r.getTarget(), -1);
    });
    @Cleanup EventStreamWriter<byte[]> writer = new EventStreamWriterImpl<>(stream, "id", controller, streamFactory, new ByteArraySerializer(), config, executor, executor, connectionFactory);
    writer.writeEvent(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8 });
    writer.writeEvent(new byte[Serializer.MAX_EVENT_SIZE * 2]);
    InOrder order = Mockito.inOrder(connection, outputStream);
    order.verify(outputStream).write(any(PendingEvent.class));
    order.verify(outputStream).flush();
    order.verify(connection).send(any(CreateTransientSegment.class));
    order.verify(connection).send(any(SetupAppend.class));
    order.verify(connection, times(3)).send(any(ConditionalBlockEnd.class));
    order.verify(connection).send(any(MergeSegments.class));
    order.verify(connection).close();
    order.verifyNoMoreInteractions();
}