Examples with LogEntry org.apache.beam.model.fnexecution.v1.BeamFnApi.LogEntry used on opensource projects

Example 1 with LogEntry

use of org.apache.beam.model.fnexecution.v1.BeamFnApi.LogEntry in project beam by apache.

the class GrpcLoggingServiceTest method testServerCloseHangsUpClients.

@Test
public void testServerCloseHangsUpClients() throws Exception {
    LinkedBlockingQueue<LogEntry> logs = new LinkedBlockingQueue<>();
    ExecutorService executorService = Executors.newCachedThreadPool();
    Collection<Future<Void>> futures = new ArrayList<>();
    final GrpcLoggingService service = GrpcLoggingService.forWriter(new CollectionAppendingLogWriter(logs));
    try (GrpcFnServer<GrpcLoggingService> server = GrpcFnServer.allocatePortAndCreateFor(service, InProcessServerFactory.create())) {
        for (int i = 1; i <= 3; ++i) {
            final long instructionId = i;
            futures.add(executorService.submit(() -> {
                {
                    CountDownLatch waitForServerHangup = new CountDownLatch(1);
                    ManagedChannel channel = InProcessChannelBuilder.forName(server.getApiServiceDescriptor().getUrl()).build();
                    StreamObserver<LogEntry.List> outboundObserver = BeamFnLoggingGrpc.newStub(channel).logging(TestStreams.withOnNext(messageDiscarder).withOnCompleted(new CountDown(waitForServerHangup)).build());
                    outboundObserver.onNext(createLogsWithIds(instructionId));
                    waitForServerHangup.await();
                    return null;
                }
            }));
        }
        // Wait till each client has sent their message showing that they have connected.
        for (int i = 1; i <= 3; ++i) {
            logs.take();
        }
    }
    for (Future<Void> future : futures) {
        future.get();
    }
}