Examples with HelloReply io.grpc.examples.helloworld.HelloReply used on opensource projects

Example 41 with HelloReply

use of io.grpc.examples.helloworld.HelloReply in project grpc-java by grpc.

the class ErrorHandlingClient method advancedAsyncCall.

/**
 * This is more advanced and does not make use of the stub.  You should not normally need to do
 * this, but here is how you would.
 */
void advancedAsyncCall() {
    ClientCall<HelloRequest, HelloReply> call = channel.newCall(GreeterGrpc.getSayHelloMethod(), CallOptions.DEFAULT);
    final CountDownLatch latch = new CountDownLatch(1);
    call.start(new ClientCall.Listener<HelloReply>() {

        @Override
        public void onClose(Status status, Metadata trailers) {
            Verify.verify(status.getCode() == Status.Code.INTERNAL);
            Verify.verify(status.getDescription().contains("Narwhal"));
            // Cause is not transmitted over the wire.
            latch.countDown();
        }
    }, new Metadata());
    call.sendMessage(HelloRequest.newBuilder().setName("Marge").build());
    call.halfClose();
    if (!Uninterruptibles.awaitUninterruptibly(latch, 1, TimeUnit.SECONDS)) {
        throw new RuntimeException("timeout!");
    }
}

Example 42 with HelloReply

use of io.grpc.examples.helloworld.HelloReply in project grpc-java by grpc.

the class HeaderClientInterceptorTest method clientHeaderDeliveredToServer.

@Test
public void clientHeaderDeliveredToServer() throws Exception {
    // Generate a unique in-process server name.
    String serverName = InProcessServerBuilder.generateName();
    // Create a server, add service, start, and register for automatic graceful shutdown.
    grpcCleanup.register(InProcessServerBuilder.forName(serverName).directExecutor().addService(ServerInterceptors.intercept(new GreeterImplBase() {
    }, mockServerInterceptor)).build().start());
    // Create a client channel and register for automatic graceful shutdown.
    ManagedChannel channel = grpcCleanup.register(InProcessChannelBuilder.forName(serverName).directExecutor().build());
    GreeterBlockingStub blockingStub = GreeterGrpc.newBlockingStub(ClientInterceptors.intercept(channel, new HeaderClientInterceptor()));
    ArgumentCaptor<Metadata> metadataCaptor = ArgumentCaptor.forClass(Metadata.class);
    try {
        blockingStub.sayHello(HelloRequest.getDefaultInstance());
        fail();
    } catch (StatusRuntimeException expected) {
    // expected because the method is not implemented at server side
    }
    verify(mockServerInterceptor).interceptCall(ArgumentMatchers.<ServerCall<HelloRequest, HelloReply>>any(), metadataCaptor.capture(), ArgumentMatchers.<ServerCallHandler<HelloRequest, HelloReply>>any());
    assertEquals("customRequestValue", metadataCaptor.getValue().get(HeaderClientInterceptor.CUSTOM_HEADER_KEY));
}

Example 43 with HelloReply

use of io.grpc.examples.helloworld.HelloReply in project grpc-java by grpc.

the class ErrorHandlingClient method futureCallDirect.

void futureCallDirect() {
    GreeterFutureStub stub = GreeterGrpc.newFutureStub(channel);
    ListenableFuture<HelloReply> response = stub.sayHello(HelloRequest.newBuilder().setName("Lisa").build());
    try {
        response.get();
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new RuntimeException(e);
    } catch (ExecutionException e) {
        Status status = Status.fromThrowable(e.getCause());
        Verify.verify(status.getCode() == Status.Code.INTERNAL);
        Verify.verify(status.getDescription().contains("Xerxes"));
    // Cause is not transmitted over the wire.
    }
}

Example 44 with HelloReply

use of io.grpc.examples.helloworld.HelloReply in project grpc-java by grpc.

the class ErrorHandlingClient method asyncCall.

void asyncCall() {
    GreeterStub stub = GreeterGrpc.newStub(channel);
    HelloRequest request = HelloRequest.newBuilder().setName("Homer").build();
    final CountDownLatch latch = new CountDownLatch(1);
    StreamObserver<HelloReply> responseObserver = new StreamObserver<HelloReply>() {

        @Override
        public void onNext(HelloReply value) {
        // Won't be called.
        }

        @Override
        public void onError(Throwable t) {
            Status status = Status.fromThrowable(t);
            Verify.verify(status.getCode() == Status.Code.INTERNAL);
            Verify.verify(status.getDescription().contains("Overbite"));
            // Cause is not transmitted over the wire..
            latch.countDown();
        }

        @Override
        public void onCompleted() {
        // Won't be called, since the server in this example always fails.
        }
    };
    stub.sayHello(request, responseObserver);
    if (!Uninterruptibles.awaitUninterruptibly(latch, 1, TimeUnit.SECONDS)) {
        throw new RuntimeException("timeout!");
    }
}

Example 45 with HelloReply

use of io.grpc.examples.helloworld.HelloReply in project grpc-java by grpc.

the class SafeMethodCachingInterceptorTest method responseNoCache_caseInsensitive.

@Test
public void responseNoCache_caseInsensitive() throws Exception {
    cacheControlDirectives.add("No-CaCHe");
    HelloReply reply1 = ClientCalls.blockingUnaryCall(channelToUse, safeGreeterSayHelloMethod, CallOptions.DEFAULT, message);
    HelloReply reply2 = ClientCalls.blockingUnaryCall(channelToUse, safeGreeterSayHelloMethod, CallOptions.DEFAULT, message);
    assertNotEquals(reply1, reply2);
    Truth.assertThat(cache.internalCache).isEmpty();
    Truth.assertThat(cache.removedKeys).isEmpty();
}