Ejemplo n.º 1
0
  @Test
  public void cancelInOnMessageShouldInvokeStreamCancel() throws Exception {
    final ClientCallImpl<Void, Void> call =
        new ClientCallImpl<Void, Void>(
            DESCRIPTOR,
            MoreExecutors.directExecutor(),
            CallOptions.DEFAULT,
            provider,
            deadlineCancellationExecutor);
    final Exception cause = new Exception();
    ClientCall.Listener<Void> callListener =
        new ClientCall.Listener<Void>() {
          @Override
          public void onMessage(Void message) {
            call.cancel("foo", cause);
          }
        };

    call.start(callListener, new Metadata());
    call.halfClose();
    call.request(1);

    verify(stream).start(listenerArgumentCaptor.capture());
    ClientStreamListener streamListener = listenerArgumentCaptor.getValue();
    streamListener.onReady();
    streamListener.headersRead(new Metadata());
    streamListener.messageRead(new ByteArrayInputStream(new byte[0]));
    verify(stream).cancel(statusCaptor.capture());
    Status status = statusCaptor.getValue();
    assertEquals(Status.CANCELLED.getCode(), status.getCode());
    assertEquals("foo", status.getDescription());
    assertSame(cause, status.getCause());
  }
Ejemplo n.º 2
0
  @Test
  public void callerContextPropagatedToListener() throws Exception {
    // Attach the context which is recorded when the call is created
    final Context.Key<String> testKey = Context.key("testing");
    Context.current().withValue(testKey, "testValue").attach();

    ClientCallImpl<Void, Void> call =
        new ClientCallImpl<Void, Void>(
                DESCRIPTOR,
                new SerializingExecutor(Executors.newSingleThreadExecutor()),
                CallOptions.DEFAULT,
                provider,
                deadlineCancellationExecutor)
            .setDecompressorRegistry(decompressorRegistry);

    Context.ROOT.attach();

    // Override the value after creating the call, this should not be seen by callbacks
    Context.current().withValue(testKey, "badValue").attach();

    final AtomicBoolean onHeadersCalled = new AtomicBoolean();
    final AtomicBoolean onMessageCalled = new AtomicBoolean();
    final AtomicBoolean onReadyCalled = new AtomicBoolean();
    final AtomicBoolean observedIncorrectContext = new AtomicBoolean();
    final CountDownLatch latch = new CountDownLatch(1);

    call.start(
        new ClientCall.Listener<Void>() {
          @Override
          public void onHeaders(Metadata headers) {
            onHeadersCalled.set(true);
            checkContext();
          }

          @Override
          public void onMessage(Void message) {
            onMessageCalled.set(true);
            checkContext();
          }

          @Override
          public void onClose(Status status, Metadata trailers) {
            checkContext();
            latch.countDown();
          }

          @Override
          public void onReady() {
            onReadyCalled.set(true);
            checkContext();
          }

          private void checkContext() {
            if (!"testValue".equals(testKey.get())) {
              observedIncorrectContext.set(true);
            }
          }
        },
        new Metadata());

    verify(stream).start(listenerArgumentCaptor.capture());
    ClientStreamListener listener = listenerArgumentCaptor.getValue();
    listener.onReady();
    listener.headersRead(new Metadata());
    listener.messageRead(new ByteArrayInputStream(new byte[0]));
    listener.messageRead(new ByteArrayInputStream(new byte[0]));
    listener.closed(Status.OK, new Metadata());

    assertTrue(latch.await(5, TimeUnit.SECONDS));

    assertTrue(onHeadersCalled.get());
    assertTrue(onMessageCalled.get());
    assertTrue(onReadyCalled.get());
    assertFalse(observedIncorrectContext.get());
  }