Examples with CallStreamObserver org.apache.beam.vendor.grpc.v1p43p2.io.grpc.stub.CallStreamObserver used on opensource projects

Example 1 with CallStreamObserver

use of org.apache.beam.vendor.grpc.v1p43p2.io.grpc.stub.CallStreamObserver in project beam by apache.

the class ServerFactoryTest method runTestUsing.

private Endpoints.ApiServiceDescriptor runTestUsing(ServerFactory serverFactory, ManagedChannelFactory channelFactory) throws Exception {
    Endpoints.ApiServiceDescriptor.Builder apiServiceDescriptorBuilder = Endpoints.ApiServiceDescriptor.newBuilder();
    final Collection<Elements> serverElements = new ArrayList<>();
    final CountDownLatch clientHangedUp = new CountDownLatch(1);
    CallStreamObserver<Elements> serverInboundObserver = TestStreams.withOnNext(serverElements::add).withOnCompleted(clientHangedUp::countDown).build();
    TestDataService service = new TestDataService(serverInboundObserver);
    Server server = serverFactory.allocateAddressAndCreate(ImmutableList.of(service), apiServiceDescriptorBuilder);
    assertFalse(server.isShutdown());
    ManagedChannel channel = channelFactory.forDescriptor(apiServiceDescriptorBuilder.build());
    BeamFnDataGrpc.BeamFnDataStub stub = BeamFnDataGrpc.newStub(channel);
    final Collection<BeamFnApi.Elements> clientElements = new ArrayList<>();
    final CountDownLatch serverHangedUp = new CountDownLatch(1);
    CallStreamObserver<BeamFnApi.Elements> clientInboundObserver = TestStreams.withOnNext(clientElements::add).withOnCompleted(serverHangedUp::countDown).build();
    StreamObserver<Elements> clientOutboundObserver = stub.data(clientInboundObserver);
    StreamObserver<BeamFnApi.Elements> serverOutboundObserver = service.outboundObservers.take();
    clientOutboundObserver.onNext(CLIENT_DATA);
    serverOutboundObserver.onNext(SERVER_DATA);
    clientOutboundObserver.onCompleted();
    clientHangedUp.await();
    serverOutboundObserver.onCompleted();
    serverHangedUp.await();
    assertThat(clientElements, contains(SERVER_DATA));
    assertThat(serverElements, contains(CLIENT_DATA));
    return apiServiceDescriptorBuilder.build();
}

Example 2 with CallStreamObserver

use of org.apache.beam.vendor.grpc.v1p43p2.io.grpc.stub.CallStreamObserver in project beam by apache.

the class BeamFnLoggingClientTest method testLogging.

@Test
public void testLogging() throws Exception {
    BeamFnLoggingMDC.setInstructionId("instruction-1");
    AtomicBoolean clientClosedStream = new AtomicBoolean();
    Collection<BeamFnApi.LogEntry> values = new ConcurrentLinkedQueue<>();
    AtomicReference<StreamObserver<BeamFnApi.LogControl>> outboundServerObserver = new AtomicReference<>();
    CallStreamObserver<BeamFnApi.LogEntry.List> inboundServerObserver = TestStreams.withOnNext((BeamFnApi.LogEntry.List logEntries) -> values.addAll(logEntries.getLogEntriesList())).withOnCompleted(() -> {
        // Remember that the client told us that this stream completed
        clientClosedStream.set(true);
        outboundServerObserver.get().onCompleted();
    }).build();
    Endpoints.ApiServiceDescriptor apiServiceDescriptor = Endpoints.ApiServiceDescriptor.newBuilder().setUrl(this.getClass().getName() + "-" + UUID.randomUUID().toString()).build();
    Server server = InProcessServerBuilder.forName(apiServiceDescriptor.getUrl()).addService(new BeamFnLoggingGrpc.BeamFnLoggingImplBase() {

        @Override
        public StreamObserver<BeamFnApi.LogEntry.List> logging(StreamObserver<BeamFnApi.LogControl> outboundObserver) {
            outboundServerObserver.set(outboundObserver);
            return inboundServerObserver;
        }
    }).build();
    server.start();
    ManagedChannel channel = InProcessChannelBuilder.forName(apiServiceDescriptor.getUrl()).build();
    try {
        BeamFnLoggingClient client = new BeamFnLoggingClient(PipelineOptionsFactory.fromArgs(new String[] { "--defaultSdkHarnessLogLevel=OFF", "--sdkHarnessLogLevelOverrides={\"ConfiguredLogger\": \"DEBUG\"}" }).create(), apiServiceDescriptor, (Endpoints.ApiServiceDescriptor descriptor) -> channel);
        // Keep a strong reference to the loggers in this block. Otherwise the call to client.close()
        // removes the only reference and the logger may get GC'd before the assertions (BEAM-4136).
        Logger rootLogger = LogManager.getLogManager().getLogger("");
        Logger configuredLogger = LogManager.getLogManager().getLogger("ConfiguredLogger");
        // Ensure that log levels were correctly set.
        assertEquals(Level.OFF, rootLogger.getLevel());
        assertEquals(Level.FINE, configuredLogger.getLevel());
        // Should be filtered because the default log level override is OFF
        rootLogger.log(FILTERED_RECORD);
        // Should not be filtered because the default log level override for ConfiguredLogger is DEBUG
        configuredLogger.log(TEST_RECORD);
        configuredLogger.log(TEST_RECORD_WITH_EXCEPTION);
        client.close();
        // Verify that after close, log levels are reset.
        assertEquals(Level.INFO, rootLogger.getLevel());
        assertNull(configuredLogger.getLevel());
        assertTrue(clientClosedStream.get());
        assertTrue(channel.isShutdown());
        assertThat(values, contains(TEST_ENTRY, TEST_ENTRY_WITH_EXCEPTION));
    } finally {
        server.shutdownNow();
    }
}

Example 3 with CallStreamObserver

use of org.apache.beam.vendor.grpc.v1p43p2.io.grpc.stub.CallStreamObserver in project beam by apache.

the class BeamFnLoggingClientTest method testWhenServerHangsUpEarlyThatClientIsAbleCleanup.

@Test
public void testWhenServerHangsUpEarlyThatClientIsAbleCleanup() throws Exception {
    BeamFnLoggingMDC.setInstructionId("instruction-1");
    Collection<BeamFnApi.LogEntry> values = new ConcurrentLinkedQueue<>();
    AtomicReference<StreamObserver<BeamFnApi.LogControl>> outboundServerObserver = new AtomicReference<>();
    CallStreamObserver<BeamFnApi.LogEntry.List> inboundServerObserver = TestStreams.withOnNext((BeamFnApi.LogEntry.List logEntries) -> values.addAll(logEntries.getLogEntriesList())).build();
    Endpoints.ApiServiceDescriptor apiServiceDescriptor = Endpoints.ApiServiceDescriptor.newBuilder().setUrl(this.getClass().getName() + "-" + UUID.randomUUID().toString()).build();
    Server server = InProcessServerBuilder.forName(apiServiceDescriptor.getUrl()).addService(new BeamFnLoggingGrpc.BeamFnLoggingImplBase() {

        @Override
        public StreamObserver<BeamFnApi.LogEntry.List> logging(StreamObserver<BeamFnApi.LogControl> outboundObserver) {
            outboundServerObserver.set(outboundObserver);
            outboundObserver.onCompleted();
            return inboundServerObserver;
        }
    }).build();
    server.start();
    ManagedChannel channel = InProcessChannelBuilder.forName(apiServiceDescriptor.getUrl()).build();
    try {
        BeamFnLoggingClient client = new BeamFnLoggingClient(PipelineOptionsFactory.fromArgs(new String[] { "--defaultSdkHarnessLogLevel=OFF", "--sdkHarnessLogLevelOverrides={\"ConfiguredLogger\": \"DEBUG\"}" }).create(), apiServiceDescriptor, (Endpoints.ApiServiceDescriptor descriptor) -> channel);
        // Keep a strong reference to the loggers in this block. Otherwise the call to client.close()
        // removes the only reference and the logger may get GC'd before the assertions (BEAM-4136).
        Logger rootLogger = LogManager.getLogManager().getLogger("");
        Logger configuredLogger = LogManager.getLogManager().getLogger("ConfiguredLogger");
        client.close();
        // Verify that after close, log levels are reset.
        assertEquals(Level.INFO, rootLogger.getLevel());
        assertNull(configuredLogger.getLevel());
    } finally {
        assertTrue(channel.isShutdown());
        server.shutdownNow();
    }
}

Example 4 with CallStreamObserver

use of org.apache.beam.vendor.grpc.v1p43p2.io.grpc.stub.CallStreamObserver in project beam by apache.

the class BeamFnControlClientTest method testDelegation.

@Test
public void testDelegation() throws Exception {
    AtomicBoolean clientClosedStream = new AtomicBoolean();
    BlockingQueue<BeamFnApi.InstructionResponse> values = new LinkedBlockingQueue<>();
    BlockingQueue<StreamObserver<BeamFnApi.InstructionRequest>> outboundServerObservers = new LinkedBlockingQueue<>();
    CallStreamObserver<BeamFnApi.InstructionResponse> inboundServerObserver = TestStreams.withOnNext(values::add).withOnCompleted(() -> clientClosedStream.set(true)).build();
    Endpoints.ApiServiceDescriptor apiServiceDescriptor = Endpoints.ApiServiceDescriptor.newBuilder().setUrl(this.getClass().getName() + "-" + UUID.randomUUID().toString()).build();
    Server server = InProcessServerBuilder.forName(apiServiceDescriptor.getUrl()).addService(new BeamFnControlGrpc.BeamFnControlImplBase() {

        @Override
        public StreamObserver<BeamFnApi.InstructionResponse> control(StreamObserver<BeamFnApi.InstructionRequest> outboundObserver) {
            Uninterruptibles.putUninterruptibly(outboundServerObservers, outboundObserver);
            return inboundServerObserver;
        }
    }).build();
    server.start();
    try {
        EnumMap<BeamFnApi.InstructionRequest.RequestCase, ThrowingFunction<BeamFnApi.InstructionRequest, BeamFnApi.InstructionResponse.Builder>> handlers = new EnumMap<>(BeamFnApi.InstructionRequest.RequestCase.class);
        handlers.put(BeamFnApi.InstructionRequest.RequestCase.PROCESS_BUNDLE, value -> {
            assertEquals(value.getInstructionId(), BeamFnLoggingMDC.getInstructionId());
            return BeamFnApi.InstructionResponse.newBuilder().setProcessBundle(BeamFnApi.ProcessBundleResponse.getDefaultInstance());
        });
        handlers.put(BeamFnApi.InstructionRequest.RequestCase.REGISTER, value -> {
            assertEquals(value.getInstructionId(), BeamFnLoggingMDC.getInstructionId());
            throw FAILURE;
        });
        ExecutorService executor = Executors.newCachedThreadPool();
        BeamFnControlClient client = new BeamFnControlClient(apiServiceDescriptor, ManagedChannelFactory.createInProcess(), OutboundObserverFactory.trivial(), executor, handlers);
        // Get the connected client and attempt to send and receive an instruction
        StreamObserver<BeamFnApi.InstructionRequest> outboundServerObserver = outboundServerObservers.take();
        outboundServerObserver.onNext(SUCCESSFUL_REQUEST);
        assertEquals(SUCCESSFUL_RESPONSE, values.take());
        // Ensure that conversion of an unknown request type is properly converted to a
        // failure response.
        outboundServerObserver.onNext(UNKNOWN_HANDLER_REQUEST);
        assertEquals(UNKNOWN_HANDLER_RESPONSE, values.take());
        // Ensure that all exceptions are caught and translated to failures
        outboundServerObserver.onNext(FAILURE_REQUEST);
        assertEquals(FAILURE_RESPONSE, values.take());
        // Ensure that the server completing the stream translates to the completable future
        // being completed allowing for a successful shutdown of the client.
        outboundServerObserver.onCompleted();
        client.waitForTermination();
    } finally {
        server.shutdownNow();
    }
}

Example 5 with CallStreamObserver

use of org.apache.beam.vendor.grpc.v1p43p2.io.grpc.stub.CallStreamObserver in project beam by apache.

the class BeamFnControlClientTest method testJavaErrorResponse.

@Test
public void testJavaErrorResponse() throws Exception {
    BlockingQueue<StreamObserver<BeamFnApi.InstructionRequest>> outboundServerObservers = new LinkedBlockingQueue<>();
    BlockingQueue<Throwable> error = new LinkedBlockingQueue<>();
    CallStreamObserver<BeamFnApi.InstructionResponse> inboundServerObserver = TestStreams.<BeamFnApi.InstructionResponse>withOnNext(response -> fail(String.format("Unexpected Response %s", response))).withOnError(error::add).build();
    Endpoints.ApiServiceDescriptor apiServiceDescriptor = Endpoints.ApiServiceDescriptor.newBuilder().setUrl(this.getClass().getName() + "-" + UUID.randomUUID().toString()).build();
    Server server = InProcessServerBuilder.forName(apiServiceDescriptor.getUrl()).addService(new BeamFnControlGrpc.BeamFnControlImplBase() {

        @Override
        public StreamObserver<BeamFnApi.InstructionResponse> control(StreamObserver<BeamFnApi.InstructionRequest> outboundObserver) {
            Uninterruptibles.putUninterruptibly(outboundServerObservers, outboundObserver);
            return inboundServerObserver;
        }
    }).build();
    server.start();
    try {
        EnumMap<BeamFnApi.InstructionRequest.RequestCase, ThrowingFunction<BeamFnApi.InstructionRequest, BeamFnApi.InstructionResponse.Builder>> handlers = new EnumMap<>(BeamFnApi.InstructionRequest.RequestCase.class);
        handlers.put(BeamFnApi.InstructionRequest.RequestCase.REGISTER, value -> {
            assertEquals(value.getInstructionId(), BeamFnLoggingMDC.getInstructionId());
            throw new Error("Test Error");
        });
        ExecutorService executor = Executors.newCachedThreadPool();
        BeamFnControlClient client = new BeamFnControlClient(apiServiceDescriptor, ManagedChannelFactory.createInProcess(), OutboundObserverFactory.trivial(), executor, handlers);
        // Get the connected client and attempt to send and receive an instruction
        StreamObserver<BeamFnApi.InstructionRequest> outboundServerObserver = outboundServerObservers.take();
        // Ensure that all exceptions are caught and translated to failures
        outboundServerObserver.onNext(InstructionRequest.newBuilder().setInstructionId("0").setRegister(RegisterRequest.getDefaultInstance()).build());
        // There should be an error reported to the StreamObserver.
        assertThat(error.take(), not(nullValue()));
        // Ensure that the client shuts down when an Error is thrown from the harness
        try {
            client.waitForTermination();
            throw new IllegalStateException("The future should have terminated with an error");
        } catch (ExecutionException errorWrapper) {
            assertThat(errorWrapper.getCause().getMessage(), containsString("Test Error"));
        }
    } finally {
        server.shutdownNow();
    }
}