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

Example 1 with PendingEvent

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

the class RevisionedStreamClientImpl method writeConditionally.

@Override
public Revision writeConditionally(Revision latestRevision, T value) {
    CompletableFuture<Boolean> wasWritten = new CompletableFuture<>();
    long offset = latestRevision.asImpl().getOffsetInSegment();
    ByteBuffer serialized = serializer.serialize(value);
    int size = serialized.remaining();
    try {
        PendingEvent event = new PendingEvent(null, serialized, wasWritten, offset);
        synchronized (lock) {
            out.write(event);
            out.flush();
        }
    } catch (SegmentSealedException e) {
        throw new CorruptedStateException("Unexpected end of segment ", e);
    }
    if (Futures.getAndHandleExceptions(wasWritten, RuntimeException::new)) {
        long newOffset = getNewOffset(offset, size);
        log.trace("Wrote from {} to {}", offset, newOffset);
        return new RevisionImpl(segment, newOffset, 0);
    } else {
        log.trace("Write failed at offset {}", offset);
        return null;
    }
}

Example 2 with PendingEvent

use of io.pravega.client.stream.impl.PendingEvent 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();
}

Example 3 with PendingEvent

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

the class SegmentOutputStreamTest method testClose.

@Test(timeout = 10000)
public void testClose() throws ConnectionFailedException, SegmentSealedException {
    UUID cid = UUID.randomUUID();
    PravegaNodeUri uri = new PravegaNodeUri("endpoint", SERVICE_PORT);
    MockConnectionFactoryImpl cf = new MockConnectionFactoryImpl();
    @Cleanup("shutdown") InlineExecutor inlineExecutor = new InlineExecutor();
    cf.setExecutor(inlineExecutor);
    MockController controller = new MockController(uri.getEndpoint(), uri.getPort(), cf);
    ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(uri, connection);
    SegmentOutputStreamImpl output = new SegmentOutputStreamImpl(SEGMENT, controller, cf, cid, segmentSealedCallback, RETRY_SCHEDULE, "");
    output.reconnect();
    verify(connection).send(new SetupAppend(1, cid, SEGMENT, ""));
    cf.getProcessor(uri).appendSetup(new AppendSetup(1, SEGMENT, cid, 0));
    ByteBuffer data = getBuffer("test");
    CompletableFuture<Boolean> acked = new CompletableFuture<>();
    output.write(new PendingEvent(null, data, acked));
    verify(connection).send(new Append(SEGMENT, cid, 1, Unpooled.wrappedBuffer(data), null));
    assertEquals(false, acked.isDone());
    Async.testBlocking(() -> output.close(), () -> cf.getProcessor(uri).dataAppended(new WireCommands.DataAppended(cid, 1, 0)));
    assertEquals(false, acked.isCompletedExceptionally());
    assertEquals(true, acked.isDone());
    verify(connection, Mockito.atMost(1)).send(new WireCommands.KeepAlive());
    verify(connection).close();
    verifyNoMoreInteractions(connection);
}

Example 4 with PendingEvent

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

the class SegmentOutputStreamTest method testFailOnClose.

/**
 * Verifies that if a exception is encountered while flushing data inside of close, the
 * connection is reestablished and the data is retransmitted before close returns.
 */
@Test
public void testFailOnClose() throws ConnectionFailedException {
    UUID cid = UUID.randomUUID();
    PravegaNodeUri uri = new PravegaNodeUri("endpoint", SERVICE_PORT);
    MockConnectionFactoryImpl cf = new MockConnectionFactoryImpl();
    @Cleanup("shutdown") InlineExecutor inlineExecutor = new InlineExecutor();
    cf.setExecutor(inlineExecutor);
    MockController controller = new MockController(uri.getEndpoint(), uri.getPort(), cf);
    ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(uri, connection);
    SegmentOutputStreamImpl output = new SegmentOutputStreamImpl(SEGMENT, controller, cf, cid, segmentSealedCallback, RETRY_SCHEDULE, "");
    output.reconnect();
    InOrder inOrder = Mockito.inOrder(connection);
    inOrder.verify(connection).send(new SetupAppend(1, cid, SEGMENT, ""));
    cf.getProcessor(uri).appendSetup(new AppendSetup(1, SEGMENT, cid, 0));
    ByteBuffer data = getBuffer("test");
    // Prep mock: the mockito doAnswers setup below are triggered during the close inside of the testBlocking() call.
    CompletableFuture<Boolean> acked = new CompletableFuture<>();
    Append append = new Append(SEGMENT, cid, 1, Unpooled.wrappedBuffer(data), null);
    doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            cf.getProcessor(uri).connectionDropped();
            throw new ConnectionFailedException();
        }
    }).doNothing().when(connection).send(new WireCommands.KeepAlive());
    doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            CompletedCallback callback = (CompletedCallback) invocation.getArgument(1);
            callback.complete(null);
            return null;
        }
    }).when(connection).sendAsync(Mockito.eq(Collections.singletonList(append)), Mockito.any());
    // Queue up event.
    output.write(new PendingEvent(null, data, acked, null));
    inOrder.verify(connection).send(append);
    // Verify behavior
    Async.testBlocking(() -> {
        output.close();
    }, () -> {
        cf.getProcessor(uri).appendSetup(new AppendSetup(2, SEGMENT, cid, 0));
        cf.getProcessor(uri).dataAppended(new WireCommands.DataAppended(cid, 1, 0));
    });
    inOrder.verify(connection).send(new WireCommands.KeepAlive());
    inOrder.verify(connection).send(new SetupAppend(2, cid, SEGMENT, ""));
    inOrder.verify(connection).sendAsync(Mockito.eq(Collections.singletonList(append)), Mockito.any());
    inOrder.verify(connection).close();
    assertEquals(true, acked.isDone());
    inOrder.verifyNoMoreInteractions();
}

Example 5 with PendingEvent

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

the class SegmentOutputStreamTest method testSealedBeforeFlush.

@Test(timeout = 10000)
public void testSealedBeforeFlush() throws ConnectionFailedException {
    UUID cid = UUID.randomUUID();
    PravegaNodeUri uri = new PravegaNodeUri("endpoint", SERVICE_PORT);
    MockConnectionFactoryImpl cf = new MockConnectionFactoryImpl();
    @Cleanup("shutdown") InlineExecutor inlineExecutor = new InlineExecutor();
    cf.setExecutor(inlineExecutor);
    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> ack = new CompletableFuture<>();
    output.write(new PendingEvent(null, data, ack));
    order.verify(connection).send(new Append(SEGMENT, cid, 1, Unpooled.wrappedBuffer(data), null));
    assertEquals(false, ack.isDone());
    cf.getProcessor(uri).segmentIsSealed(new WireCommands.SegmentIsSealed(1, SEGMENT));
    // this is invoked by the segmentSealedCallback.
    output.getUnackedEventsOnSeal();
    AssertExtensions.assertThrows(SegmentSealedException.class, () -> output.flush());
}