Examples with Single io.helidon.common.reactive.Single used on opensource projects

Example 36 with Single

use of io.helidon.common.reactive.Single in project helidon by oracle.

the class Main method startServer.

/**
 * Start the server.
 * @return the created {@link WebServer} instance
 */
static Single<WebServer> startServer() {
    // load logging configuration
    LogConfig.configureRuntime();
    // By default this will pick up application.yaml from the classpath
    Config config = Config.create();
    WebServer server = WebServer.builder().tracer(TracerBuilder.create(config.get("tracing"))).routing(createRouting(config)).config(config.get("server")).addMediaSupport(JsonpSupport.create()).build();
    Single<WebServer> webserver = server.start();
    // Try to start the server. If successful, print some info and arrange to
    // print a message at shutdown. If unsuccessful, print the exception.
    webserver.thenAccept(ws -> {
        System.out.println("WEB server is up! http://localhost:" + ws.port() + "/greet");
        ws.whenShutdown().thenRun(() -> System.out.println("WEB server is DOWN. Good bye!"));
    }).exceptionallyAccept(t -> {
        System.err.println("Startup failed: " + t.getMessage());
        t.printStackTrace(System.err);
    });
    return webserver;
}

Example 37 with Single

use of io.helidon.common.reactive.Single in project helidon by oracle.

the class RestApiBase method responseSupplier.

/**
 * Create a response supplier from the request.
 * This method checks if there is a payload, and prepares the supplier based on this information.
 *
 * @param method HTTP method to invoke
 * @param path path to invoke
 * @param request request that may contain a JSON entity
 * @param requestId request ID to use for this request
 * @return supplier of response that is used with fault tolerance
 */
protected Supplier<Single<WebClientResponse>> responseSupplier(Http.RequestMethod method, String path, ApiRequest<?> request, String requestId) {
    WebClientRequestBuilder requestBuilder = webClient.method(method).path(path);
    addHeaders(requestBuilder, path, request, method, requestId);
    addQueryParams(requestBuilder, path, request, method, requestId);
    Optional<JsonObject> payload = request.toJson(jsonBuilderFactory);
    Supplier<Single<WebClientResponse>> responseSupplier;
    // now let's update the request
    if (payload.isPresent()) {
        responseSupplier = requestJsonPayload(path, request, method, requestId, requestBuilder, payload.get());
    } else {
        responseSupplier = requestPayload(path, request, method, requestId, requestBuilder);
    }
    return responseSupplier;
}

Example 38 with Single

use of io.helidon.common.reactive.Single in project helidon by oracle.

the class Main method startServer.

/**
 * Start the server.
 * @return the created {@link WebServer} instance
 * @throws IOException if there are problems reading logging properties
 */
static Single<WebServer> startServer() throws IOException {
    // load logging configuration
    LogConfig.configureRuntime();
    // By default this will pick up application.yaml from the classpath
    Config config = Config.create();
    // Get webserver config from the "server" section of application.yaml
    Single<WebServer> server = WebServer.builder(createRouting(config)).config(config.get("server")).addMediaSupport(JsonpSupport.create()).build().start();
    server.thenAccept(ws -> {
        System.out.println("WEB server is up! http://localhost:" + ws.port() + "/greet");
        ws.whenShutdown().thenRun(() -> System.out.println("WEB server is DOWN. Good bye!"));
    }).exceptionally(t -> {
        System.err.println("Startup failed: " + t.getMessage());
        t.printStackTrace(System.err);
        return null;
    });
    return server;
}

Example 39 with Single

use of io.helidon.common.reactive.Single in project helidon by oracle.

the class Main method startServer.

/**
 * Start the server.
 * @return the created {@link WebServer} instance
 */
static Single<WebServer> startServer() {
    // load logging configuration
    LogConfig.configureRuntime();
    // By default this will pick up application.yaml from the classpath
    Config config = Config.create();
    // Get webserver config from the "server" section of application.yaml and JSON support registration
    Single<WebServer> server = WebServer.builder(createRouting(config)).config(config.get("server")).addMediaSupport(JsonbSupport.create()).build().start();
    server.thenAccept(ws -> {
        System.out.println("WEB server is up!");
        System.out.println("Web client at: http://localhost:" + ws.port() + "/public/index.html");
        ws.whenShutdown().thenRun(() -> System.out.println("WEB server is DOWN. Good bye!"));
    }).exceptionally(t -> {
        System.err.println("Startup failed: " + t.getMessage());
        t.printStackTrace(System.err);
        return null;
    });
    return server;
}