Examples with Feature io.grpc.examples.routeguide.Feature used on opensource projects

Example 1 with Feature

use of io.grpc.examples.routeguide.Feature in project motan by weibocom.

the class GrpcServerDemo method listFeatures.

/**
 * Gets all features contained within the given bounding {@link Rectangle}.
 *
 * @param request the bounding rectangle for the requested features.
 * @param responseObserver the observer that will receive the features.
 */
public void listFeatures(Rectangle request, StreamObserver<Feature> responseObserver) {
    int left = min(request.getLo().getLongitude(), request.getHi().getLongitude());
    int right = max(request.getLo().getLongitude(), request.getHi().getLongitude());
    int top = max(request.getLo().getLatitude(), request.getHi().getLatitude());
    int bottom = min(request.getLo().getLatitude(), request.getHi().getLatitude());
    for (Feature feature : features) {
        if (!RouteGuideUtil.exists(feature)) {
            continue;
        }
        int lat = feature.getLocation().getLatitude();
        int lon = feature.getLocation().getLongitude();
        if (lon >= left && lon <= right && lat >= bottom && lat <= top) {
            responseObserver.onNext(feature);
        }
    }
    responseObserver.onCompleted();
}

Example 2 with Feature

use of io.grpc.examples.routeguide.Feature in project motan by weibocom.

the class GrpcClientDemo method main.

public static void main(String[] args) throws Exception {
    ApplicationContext ctx = new ClassPathXmlApplicationContext(new String[] { "classpath:motan_demo_client_grpc.xml" });
    GrpcService service = (GrpcService) ctx.getBean("motanDemoReferer");
    // unary
    for (int i = 0; i < 2; i++) {
        Point request = Point.newBuilder().setLatitude(100 + i).setLongitude(150 + i).build();
        System.out.println(service.getFeature(request));
        Thread.sleep(1000);
    }
    // server streaming
    Rectangle request = Rectangle.newBuilder().setLo(Point.newBuilder().setLatitude(400000000).setLongitude(-750000000).build()).setHi(Point.newBuilder().setLatitude(420000000).setLongitude(-730000000).build()).build();
    StreamObserver<Feature> responseObserver = new StreamObserver<Feature>() {

        @Override
        public void onNext(Feature value) {
            System.out.println(value);
        }

        @Override
        public void onError(Throwable t) {
        // TODO Auto-generated method stub
        }

        @Override
        public void onCompleted() {
            System.out.println("response complete!");
        }
    };
    service.listFeatures(request, responseObserver);
    Thread.sleep(2000);
    // client streaming
    StreamObserver<RouteSummary> routeSummaryObserver = new StreamObserver<RouteSummary>() {

        @Override
        public void onNext(RouteSummary value) {
            System.out.println(value);
        }

        @Override
        public void onError(Throwable t) {
        // TODO Auto-generated method stub
        }

        @Override
        public void onCompleted() {
            System.out.println("response complete!");
        }
    };
    StreamObserver<Point> requestObserver = service.recordRoute(routeSummaryObserver);
    Random random = new Random();
    for (int i = 0; i < 5; i++) {
        Point point = Point.newBuilder().setLatitude(random.nextInt()).setLongitude(random.nextInt()).build();
        requestObserver.onNext(point);
        Thread.sleep(200);
    }
    requestObserver.onCompleted();
    Thread.sleep(2000);
    // biderict-streaming
    StreamObserver<RouteNote> biRequestObserver = service.routeChat(new StreamObserver<RouteNote>() {

        public void onNext(RouteNote value) {
            System.out.println(value);
        }

        public void onError(Throwable t) {
            t.printStackTrace();
        }

        public void onCompleted() {
            System.out.println("routenote complete");
        }
    });
    try {
        RouteNote[] requests = { newNote("First message", 0, 0), newNote("Second message", 0, 1), newNote("Third message", 1, 0), newNote("Fourth message", 1, 1) };
        for (RouteNote note : requests) {
            biRequestObserver.onNext(note);
        }
    } catch (RuntimeException e) {
        biRequestObserver.onError(e);
        throw e;
    }
    biRequestObserver.onCompleted();
    Thread.sleep(2000);
    System.out.println("motan demo is finish.");
    System.exit(0);
}

Example 3 with Feature

use of io.grpc.examples.routeguide.Feature in project vertx-examples by vert-x3.

the class Client method getFeature.

/**
 * Blocking unary call example.  Calls getFeature and prints the response.
 */
public void getFeature(int lat, int lon) {
    System.out.println("*** GetFeature: lat=" + lat + " lon=" + lon);
    Point request = Point.newBuilder().setLatitude(lat).setLongitude(lon).build();
    stub.getFeature(request, ar -> {
        if (ar.succeeded()) {
            Feature feature = ar.result();
            if (Util.exists(feature)) {
                System.out.println("Found feature called " + feature.getName() + " at " + Util.getLatitude(feature.getLocation()) + ", " + Util.getLongitude(feature.getLocation()));
            } else {
                System.out.println("Found no feature at " + Util.getLatitude(feature.getLocation()) + ", " + Util.getLongitude(feature.getLocation()));
            }
        }
    });
}

Example 4 with Feature

use of io.grpc.examples.routeguide.Feature in project vertx-examples by vert-x3.

the class Client method start.

@Override
public void start() throws Exception {
    ManagedChannel channel = VertxChannelBuilder.forAddress(vertx, "localhost", 8080).usePlaintext(true).build();
    stub = RouteGuideGrpc.newVertxStub(channel);
    List<Feature> features = Util.parseFeatures(Util.getDefaultFeaturesFile());
    // Looking for a valid feature
    getFeature(409146138, -746188906);
    // Feature missing.
    getFeature(0, 0);
    // Looking for features between 40, -75 and 42, -73.
    listFeatures(400000000, -750000000, 420000000, -730000000);
    // Record a few randomly selected points from the features file.
    recordRoute(features, 10);
    routeChat();
}

Example 5 with Feature

use of io.grpc.examples.routeguide.Feature in project vertx-examples by vert-x3.

the class Server method start.

@Override
public void start() throws Exception {
    URL featureFile = Util.getDefaultFeaturesFile();
    features = Util.parseFeatures(featureFile);
    VertxServer server = VertxServerBuilder.forAddress(vertx, "localhost", 8080).addService(new RouteGuideGrpc.RouteGuideVertxImplBase() {

        @Override
        public void getFeature(Point request, Promise<Feature> response) {
            response.complete(checkFeature(request));
        }

        @Override
        public void listFeatures(Rectangle request, GrpcWriteStream<Feature> response) {
            int left = Math.min(request.getLo().getLongitude(), request.getHi().getLongitude());
            int right = Math.max(request.getLo().getLongitude(), request.getHi().getLongitude());
            int top = Math.max(request.getLo().getLatitude(), request.getHi().getLatitude());
            int bottom = Math.min(request.getLo().getLatitude(), request.getHi().getLatitude());
            for (Feature feature : features) {
                if (!Util.exists(feature)) {
                    continue;
                }
                int lat = feature.getLocation().getLatitude();
                int lon = feature.getLocation().getLongitude();
                if (lon >= left && lon <= right && lat >= bottom && lat <= top) {
                    response.write(feature);
                }
            }
            response.end();
        }

        @Override
        public void recordRoute(GrpcReadStream<Point> request, Future<RouteSummary> response) {
            request.exceptionHandler(err -> {
                System.out.println("recordRoute cancelled");
            });
            RouteRecorder recorder = new RouteRecorder();
            request.handler(recorder::append);
            request.endHandler(v -> {
                response.complete(recorder.build());
            });
        }

        @Override
        public void routeChat(GrpcBidiExchange<RouteNote, RouteNote> exchange) {
            exchange.handler(note -> {
                List<RouteNote> notes = getOrCreateNotes(note.getLocation());
                // Respond with all previous notes at this location.
                for (RouteNote prevNote : notes.toArray(new RouteNote[0])) {
                    exchange.write(prevNote);
                }
                // Now add the new note to the list
                notes.add(note);
            });
            exchange.exceptionHandler(err -> {
                System.out.println("routeChat cancelled");
            });
            exchange.endHandler(v -> exchange.end());
        }
    }).build();
    server.start(ar -> {
        if (ar.succeeded()) {
            System.out.println("gRPC service started");
        } else {
            System.out.println("Could not start server " + ar.cause().getMessage());
        }
    });
}