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

Example 16 with ClientConnection

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

the class SegmentOutputStreamTest method testSealedAfterFlush.

@Test(timeout = 10000)
public void testSealedAfterFlush() throws Exception {
    UUID cid = UUID.randomUUID();
    PravegaNodeUri uri = new PravegaNodeUri("endpoint", SERVICE_PORT);
    MockConnectionFactoryImpl cf = new MockConnectionFactoryImpl();
    cf.setExecutor(executorService());
    MockController controller = new MockController(uri.getEndpoint(), uri.getPort(), cf, true);
    ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(uri, connection);
    InOrder order = Mockito.inOrder(connection);
    @SuppressWarnings("resource") SegmentOutputStreamImpl output = new SegmentOutputStreamImpl(SEGMENT, true, controller, cf, cid, segmentSealedCallback, RETRY_SCHEDULE, DelegationTokenProviderFactory.createWithEmptyToken());
    output.reconnect();
    order.verify(connection).send(new SetupAppend(output.getRequestId(), cid, SEGMENT, ""));
    cf.getProcessor(uri).appendSetup(new AppendSetup(output.getRequestId(), SEGMENT, cid, 0));
    ByteBuffer data = getBuffer("test");
    CompletableFuture<Void> ack = new CompletableFuture<>();
    output.write(PendingEvent.withoutHeader(null, data, ack));
    order.verify(connection).send(new Append(SEGMENT, cid, 1, 1, Unpooled.wrappedBuffer(data), null, output.getRequestId()));
    assertEquals(false, ack.isDone());
    AssertExtensions.assertBlocks(() -> {
        AssertExtensions.assertThrows(SegmentSealedException.class, () -> output.flush());
    }, () -> {
        cf.getProcessor(uri).segmentIsSealed(new WireCommands.SegmentIsSealed(output.getRequestId(), SEGMENT, "SomeException", 1));
        output.getUnackedEventsOnSeal();
    });
    AssertExtensions.assertThrows(SegmentSealedException.class, () -> output.flush());
}

Example 17 with ClientConnection

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

the class SegmentOutputStreamTest method testCloseDuringTransactionAbort.

@Test(timeout = 10000)
public void testCloseDuringTransactionAbort() throws Exception {
    UUID cid = UUID.randomUUID();
    PravegaNodeUri uri = new PravegaNodeUri("endpoint", SERVICE_PORT);
    MockConnectionFactoryImpl cf = new MockConnectionFactoryImpl();
    cf.setExecutor(executorService());
    MockController controller = new MockController(uri.getEndpoint(), uri.getPort(), cf, true);
    ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(uri, connection);
    InOrder order = Mockito.inOrder(connection);
    SegmentOutputStreamImpl output = new SegmentOutputStreamImpl(TXN_SEGMENT, true, controller, cf, cid, segmentSealedCallback, RETRY_SCHEDULE, DelegationTokenProviderFactory.createWithEmptyToken());
    output.reconnect();
    order.verify(connection).send(new SetupAppend(output.getRequestId(), cid, TXN_SEGMENT, ""));
    cf.getProcessor(uri).appendSetup(new AppendSetup(output.getRequestId(), TXN_SEGMENT, cid, 0));
    ByteBuffer data = getBuffer("test");
    // Write an Event.
    CompletableFuture<Void> ack1 = new CompletableFuture<>();
    output.write(PendingEvent.withoutHeader(null, data, ack1));
    order.verify(connection).send(new Append(TXN_SEGMENT, cid, 1, 1, Unpooled.wrappedBuffer(data), null, output.getRequestId()));
    // writer is not complete until a response from Segment Store is received.
    assertFalse(ack1.isDone());
    // Simulate a NoSuchSegment response from SegmentStore due to a Transaction abort.
    cf.getProcessor(uri).noSuchSegment(new WireCommands.NoSuchSegment(output.getRequestId(), TXN_SEGMENT, "SomeException", -1L));
    // Trigger a second write.
    CompletableFuture<Void> ack2 = new CompletableFuture<>();
    output.write(PendingEvent.withoutHeader(null, data, ack2));
    // Closing the Segment writer should cause a SegmentSealedException.
    AssertExtensions.assertThrows(SegmentSealedException.class, () -> output.close());
}

Example 18 with ClientConnection

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

the class SegmentOutputStreamTest method testFailDuringFlush.

@Test(timeout = 10000)
public void testFailDuringFlush() throws Exception {
    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, true);
    ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(uri, connection);
    InOrder order = Mockito.inOrder(connection);
    @Cleanup SegmentOutputStreamImpl output = new SegmentOutputStreamImpl(SEGMENT, true, controller, cf, cid, segmentSealedCallback, RETRY_SCHEDULE, DelegationTokenProviderFactory.createWithEmptyToken());
    output.reconnect();
    order.verify(connection).send(new SetupAppend(output.getRequestId(), cid, SEGMENT, ""));
    cf.getProcessor(uri).appendSetup(new AppendSetup(output.getRequestId(), SEGMENT, cid, 0));
    ByteBuffer data = getBuffer("test");
    CompletableFuture<Void> ack = new CompletableFuture<>();
    output.write(PendingEvent.withoutHeader(null, data, ack));
    order.verify(connection).send(new Append(SEGMENT, cid, 1, 1, Unpooled.wrappedBuffer(data), null, output.getRequestId()));
    assertEquals(false, ack.isDone());
    final CountDownLatch connectionDroppedLatch = new CountDownLatch(1);
    Mockito.doThrow(new ConnectionFailedException()).when(connection).send(new WireCommands.KeepAlive());
    doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            // The segment writer will try to reconnect once the connection is failed post sending a KeepAlive.
            // enable a response for AppendSetup only after the connection dropped is dropped.
            connectionDroppedLatch.await();
            cf.getProcessor(uri).appendSetup(new AppendSetup(output.getRequestId(), SEGMENT, cid, 1));
            return null;
        }
    }).when(connection).send(new SetupAppend(output.getRequestId(), cid, SEGMENT, ""));
    AssertExtensions.assertBlocks(() -> {
        output.flush();
    }, () -> {
        cf.getProcessor(uri).connectionDropped();
        connectionDroppedLatch.countDown();
    });
    order.verify(connection).send(new SetupAppend(output.getRequestId(), cid, SEGMENT, ""));
    assertEquals(true, ack.isDone());
}

Example 19 with ClientConnection

use of io.pravega.client.connection.impl.ClientConnection 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();
    cf.setExecutor(executorService());
    MockController controller = new MockController(uri.getEndpoint(), uri.getPort(), cf, true);
    ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(uri, connection);
    SegmentOutputStreamImpl output = new SegmentOutputStreamImpl(SEGMENT, true, controller, cf, cid, segmentSealedCallback, RETRY_SCHEDULE, DelegationTokenProviderFactory.createWithEmptyToken());
    output.reconnect();
    InOrder inOrder = Mockito.inOrder(connection);
    inOrder.verify(connection).send(new SetupAppend(output.getRequestId(), cid, SEGMENT, ""));
    cf.getProcessor(uri).appendSetup(new AppendSetup(output.getRequestId(), 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<Void> acked = new CompletableFuture<>();
    Append append = new Append(SEGMENT, cid, 1, 1, Unpooled.wrappedBuffer(data), null, output.getRequestId());
    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(PendingEvent.withoutHeader(null, data, acked));
    inOrder.verify(connection).send(append);
    // Verify behavior
    AssertExtensions.assertBlocks(() -> {
        output.close();
    }, () -> {
        // close is unblocked once the connection is setup and data is appended on Segment store.
        cf.getProcessor(uri).appendSetup(new AppendSetup(output.getRequestId(), SEGMENT, cid, 0));
        cf.getProcessor(uri).dataAppended(new WireCommands.DataAppended(output.getRequestId(), cid, 1, 0, -1));
    });
    // Verify the order of WireCommands sent.
    inOrder.verify(connection).send(new WireCommands.KeepAlive());
    // Two SetupAppend WireCommands are sent since the connection is dropped right after the first KeepAlive WireCommand is sent.
    // The second SetupAppend WireCommand is sent while trying to re-establish connection.
    inOrder.verify(connection, times(2)).send(new SetupAppend(output.getRequestId(), cid, SEGMENT, ""));
    // Ensure the pending append is sent over the connection. The exact verification of the append data is performed while setting up
    // the when clause of setting up append.
    inOrder.verify(connection).sendAsync(Mockito.anyList(), Mockito.any());
    inOrder.verify(connection).close();
    assertEquals(true, acked.isDone());
    inOrder.verifyNoMoreInteractions();
}

Example 20 with ClientConnection

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

the class SegmentOutputStreamTest method testReconnectDoesNotSetupAppendOnTokenCheckFailure.

@Test(timeout = 10000)
public void testReconnectDoesNotSetupAppendOnTokenCheckFailure() throws ConnectionFailedException, SegmentSealedException {
    UUID writerId = UUID.randomUUID();
    PravegaNodeUri segmentStoreUri = new PravegaNodeUri("endpoint", SERVICE_PORT);
    MockConnectionFactoryImpl mockConnectionFactory = spy(new MockConnectionFactoryImpl());
    ScheduledExecutorService executor = mock(ScheduledExecutorService.class);
    // Ensure task submitted to executor is run inline.
    implementAsDirectExecutor(executor);
    mockConnectionFactory.setExecutor(executor);
    MockController controller = new MockController(segmentStoreUri.getEndpoint(), segmentStoreUri.getPort(), mockConnectionFactory, true);
    ClientConnection mockConnection = mock(ClientConnection.class);
    mockConnectionFactory.provideConnection(segmentStoreUri, mockConnection);
    @Cleanup SegmentOutputStreamImpl output = new SegmentOutputStreamImpl(SEGMENT, true, controller, mockConnectionFactory, writerId, segmentSealedCallback, RETRY_SCHEDULE, DelegationTokenProviderFactory.createWithEmptyToken());
    output.reconnect();
    verify(mockConnection).send(new SetupAppend(output.getRequestId(), writerId, SEGMENT, ""));
    reset(mockConnection);
    // Simulate token check failure
    WireCommands.AuthTokenCheckFailed authTokenCheckFailed = new WireCommands.AuthTokenCheckFailed(1, "server-stacktrace", WireCommands.AuthTokenCheckFailed.ErrorCode.TOKEN_CHECK_FAILED);
    mockConnectionFactory.getProcessor(segmentStoreUri).authTokenCheckFailed(authTokenCheckFailed);
    // Verify that SetupAppend is NOT sent. We expect the client to get an exception.
    verify(mockConnection, times(0)).send(new SetupAppend(output.getRequestId(), writerId, SEGMENT, ""));
}