Examples with ClientConnection io.pravega.client.netty.impl.ClientConnection used on opensource projects

Example 1 with ClientConnection

use of io.pravega.client.netty.impl.ClientConnection in project pravega by pravega.

the class SegmentOutputStreamImpl method reconnect.

@VisibleForTesting
void reconnect() {
    if (state.isClosed()) {
        return;
    }
    log.debug("(Re)connect invoked, Segment: {}, writerID: {}", segmentName, writerId);
    state.setupConnection.registerAndRunReleaser(() -> {
        Retry.indefinitelyWithExpBackoff(retrySchedule.getInitialMillis(), retrySchedule.getMultiplier(), retrySchedule.getMaxDelay(), t -> log.warn(writerId + " Failed to connect: ", t)).runAsync(() -> {
            log.debug("Running reconnect for segment:{} writerID: {}", segmentName, writerId);
            if (state.isClosed() || state.isAlreadySealed()) {
                return CompletableFuture.completedFuture(null);
            }
            Preconditions.checkState(state.getConnection() == null);
            log.info("Fetching endpoint for segment {}, writerID: {}", segmentName, writerId);
            return controller.getEndpointForSegment(segmentName).thenComposeAsync((PravegaNodeUri uri) -> {
                log.info("Establishing connection to {} for {}, writerID: {}", uri, segmentName, writerId);
                return connectionFactory.establishConnection(uri, responseProcessor);
            }, connectionFactory.getInternalExecutor()).thenComposeAsync(connection -> {
                CompletableFuture<Void> connectionSetupFuture = state.newConnection(connection);
                SetupAppend cmd = new SetupAppend(requestIdGenerator.get(), writerId, segmentName, delegationToken);
                try {
                    connection.send(cmd);
                } catch (ConnectionFailedException e1) {
                    // This needs to be invoked here because call to failConnection from netty may occur before state.newConnection above.
                    state.failConnection(e1);
                    throw Lombok.sneakyThrow(e1);
                }
                return connectionSetupFuture.exceptionally(t -> {
                    if (Exceptions.unwrap(t) instanceof SegmentSealedException) {
                        log.info("Ending reconnect attempts to {} because segment is sealed", segmentName);
                        return null;
                    }
                    throw Lombok.sneakyThrow(t);
                });
            }, connectionFactory.getInternalExecutor());
        }, connectionFactory.getInternalExecutor());
    }, new CompletableFuture<ClientConnection>());
}

Example 2 with ClientConnection

use of io.pravega.client.netty.impl.ClientConnection in project pravega by pravega.

the class SegmentOutputStreamImpl method close.

/**
 * @see SegmentOutputStream#close()
 */
@Override
public void close() throws SegmentSealedException {
    if (state.isClosed()) {
        return;
    }
    log.debug("Closing writer: {}", writerId);
    // Wait until all the inflight events are written
    flush();
    state.setClosed(true);
    ClientConnection connection = state.getConnection();
    if (connection != null) {
        connection.close();
    }
}

Example 3 with ClientConnection

use of io.pravega.client.netty.impl.ClientConnection in project pravega by pravega.

the class SegmentMetadataClientTest method testCurrentStreamLength.

@Test(timeout = 10000)
public void testCurrentStreamLength() throws Exception {
    Segment segment = new Segment("scope", "testRetry", 4);
    PravegaNodeUri endpoint = new PravegaNodeUri("localhost", 0);
    @Cleanup MockConnectionFactoryImpl cf = new MockConnectionFactoryImpl();
    @Cleanup MockController controller = new MockController(endpoint.getEndpoint(), endpoint.getPort(), cf);
    @Cleanup ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(endpoint, connection);
    SegmentMetadataClientImpl client = new SegmentMetadataClientImpl(segment, controller, cf, "");
    client.getConnection();
    ReplyProcessor processor = cf.getProcessor(endpoint);
    Mockito.doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            processor.process(new StreamSegmentInfo(1, segment.getScopedName(), true, false, false, 0, 123, 121));
            return null;
        }
    }).when(connection).send(new WireCommands.GetStreamSegmentInfo(1, segment.getScopedName(), ""));
    long length = client.fetchCurrentSegmentLength();
    assertEquals(123, length);
}

Example 4 with ClientConnection

use of io.pravega.client.netty.impl.ClientConnection in project pravega by pravega.

the class SegmentMetadataClientTest method compareAndSetAttribute.

@Test(timeout = 10000)
public void compareAndSetAttribute() throws Exception {
    UUID attributeId = SegmentAttribute.RevisionStreamClientMark.getValue();
    Segment segment = new Segment("scope", "testRetry", 4);
    PravegaNodeUri endpoint = new PravegaNodeUri("localhost", 0);
    MockConnectionFactoryImpl cf = new MockConnectionFactoryImpl();
    MockController controller = new MockController(endpoint.getEndpoint(), endpoint.getPort(), cf);
    ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(endpoint, connection);
    SegmentMetadataClientImpl client = new SegmentMetadataClientImpl(segment, controller, cf, "");
    client.getConnection();
    ReplyProcessor processor = cf.getProcessor(endpoint);
    Mockito.doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            processor.process(new SegmentAttributeUpdated(1, true));
            return null;
        }
    }).when(connection).send(new WireCommands.UpdateSegmentAttribute(1, segment.getScopedName(), attributeId, 1234, -1234, ""));
    assertTrue(client.compareAndSetAttribute(SegmentAttribute.RevisionStreamClientMark, -1234, 1234));
}

Example 5 with ClientConnection

use of io.pravega.client.netty.impl.ClientConnection in project pravega by pravega.

the class SegmentOutputStreamTest method testFlush.

@Test(timeout = 10000)
public void testFlush() throws ConnectionFailedException, SegmentSealedException {
    UUID cid = UUID.randomUUID();
    PravegaNodeUri uri = new PravegaNodeUri("endpoint", SERVICE_PORT);
    MockConnectionFactoryImpl cf = new MockConnectionFactoryImpl();
    ScheduledExecutorService executor = mock(ScheduledExecutorService.class);
    // Ensure task submitted to executor is run inline.
    implementAsDirectExecutor(executor);
    cf.setExecutor(executor);
    MockController controller = new MockController(uri.getEndpoint(), uri.getPort(), cf);
    ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(uri, connection);
    InOrder order = Mockito.inOrder(connection);
    SegmentOutputStreamImpl output = new SegmentOutputStreamImpl(SEGMENT, controller, cf, cid, segmentSealedCallback, RETRY_SCHEDULE, "");
    output.reconnect();
    order.verify(connection).send(new SetupAppend(1, cid, SEGMENT, ""));
    cf.getProcessor(uri).appendSetup(new AppendSetup(1, SEGMENT, cid, 0));
    ByteBuffer data = getBuffer("test");
    CompletableFuture<Boolean> acked1 = new CompletableFuture<>();
    output.write(new PendingEvent(null, data, acked1));
    order.verify(connection).send(new Append(SEGMENT, cid, 1, Unpooled.wrappedBuffer(data), null));
    assertEquals(false, acked1.isDone());
    Async.testBlocking(() -> output.flush(), () -> cf.getProcessor(uri).dataAppended(new WireCommands.DataAppended(cid, 1, 0)));
    assertEquals(false, acked1.isCompletedExceptionally());
    assertEquals(true, acked1.isDone());
    order.verify(connection).send(new WireCommands.KeepAlive());
    CompletableFuture<Boolean> acked2 = new CompletableFuture<>();
    output.write(new PendingEvent(null, data, acked2));
    order.verify(connection).send(new Append(SEGMENT, cid, 2, Unpooled.wrappedBuffer(data), null));
    assertEquals(false, acked2.isDone());
    Async.testBlocking(() -> output.flush(), () -> cf.getProcessor(uri).dataAppended(new WireCommands.DataAppended(cid, 2, 1)));
    assertEquals(false, acked2.isCompletedExceptionally());
    assertEquals(true, acked2.isDone());
    order.verify(connection).send(new WireCommands.KeepAlive());
    order.verifyNoMoreInteractions();
}