Examples with ClientServiceDescriptor io.helidon.grpc.client.ClientServiceDescriptor used on opensource projects

Example 6 with ClientServiceDescriptor

use of io.helidon.grpc.client.ClientServiceDescriptor in project helidon by oracle.

the class HealthClient method main.

/**
 * The program entry point.
 *
 * @param args  the program arguments
 */
public static void main(String[] args) {
    ClientServiceDescriptor descriptor = ClientServiceDescriptor.builder(HealthGrpc.getServiceDescriptor()).build();
    Channel channel = ManagedChannelBuilder.forAddress("localhost", 1408).usePlaintext().build();
    GrpcServiceClient grpcClient = GrpcServiceClient.create(channel, descriptor);
    // query the health of a deployed service
    HealthCheckResponse response = grpcClient.blockingUnary("Check", HealthCheckRequest.newBuilder().setService("GreetService").build());
    System.out.println(response);
    // query the health of a non-existent service
    try {
        grpcClient.blockingUnary("Check", HealthCheckRequest.newBuilder().setService("FooService").build());
    } catch (StatusRuntimeException e) {
        // expect to catch a NOT_FOUND exception
        System.out.println(e.getMessage());
    }
}

Example 7 with ClientServiceDescriptor

use of io.helidon.grpc.client.ClientServiceDescriptor in project helidon by oracle.

the class GreetClient method main.

/**
 * The program entry point.
 *
 * @param args  the program arguments
 */
public static void main(String[] args) {
    Tracer tracer = TracerBuilder.create("Client").collectorUri(URI.create("http://localhost:9411/api/v2/spans")).build();
    ClientTracingInterceptor tracingInterceptor = ClientTracingInterceptor.builder(tracer).withVerbosity().withTracedAttributes(ClientRequestAttribute.ALL_CALL_OPTIONS).build();
    ClientServiceDescriptor descriptor = ClientServiceDescriptor.builder(GreetServiceGrpc.getServiceDescriptor()).intercept(tracingInterceptor).build();
    Channel channel = ManagedChannelBuilder.forAddress("localhost", 1408).usePlaintext().build();
    GrpcServiceClient client = GrpcServiceClient.create(channel, descriptor);
    // Obtain a greeting from the GreetService
    GreetRequest request = GreetRequest.newBuilder().setName("Aleks").build();
    GreetResponse firstGreeting = client.blockingUnary("Greet", request);
    System.out.println("First greeting: '" + firstGreeting.getMessage() + "'");
    // Change the greeting
    SetGreetingRequest setRequest = SetGreetingRequest.newBuilder().setGreeting("Ciao").build();
    SetGreetingResponse setResponse = client.blockingUnary("SetGreeting", setRequest);
    System.out.println("Greeting set to: '" + setResponse.getGreeting() + "'");
    // Obtain a second greeting from the GreetService
    GreetResponse secondGreeting = client.blockingUnary("Greet", request);
    System.out.println("Second greeting: '" + secondGreeting.getMessage() + "'");
}