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Example 1 with ServiceDiscoveryOptions

use of io.vertx.servicediscovery.ServiceDiscoveryOptions in project vertx-examples by vert-x3.

the class ServiceDiscoveryVerticle method start.

@Override
public void start() {
    ServiceDiscovery discovery = ServiceDiscovery.create(vertx, new ServiceDiscoveryOptions().setAnnounceAddress("service-announce").setName("my-name"));
    // create a new custom record
    Record record1 = new Record().setType("eventbus-service-proxy").setLocation(new JsonObject().put("endpoint", "the-service-address")).setName("my-service").setMetadata(new JsonObject().put("some-label", "some-value"));
    // publish "my-service" service
    discovery.publish(record1, ar -> {
        if (ar.succeeded()) {
            System.out.println("\"" + record1.getName() + "\" successfully published!");
            Record publishedRecord = ar.result();
        } else {
        // publication failed
        }
    });
    // create a record from type
    Record record2 = HttpEndpoint.createRecord("some-rest-api", "localhost", 8080, "/api");
    // publish the service
    discovery.publish(record2, ar -> {
        if (ar.succeeded()) {
            System.out.println("\"" + record2.getName() + "\" successfully published!");
            Record publishedRecord = ar.result();
        } else {
        // publication failed
        }
    });
    // unpublish "my-service"
    discovery.unpublish(record1.getRegistration(), ar -> {
        if (ar.succeeded()) {
            System.out.println("\"" + record1.getName() + "\" successfully unpublished");
        } else {
        // cannot un-publish the service, may have already been removed, or the record is not published
        }
    });
    // consuming a service
    discovery.getRecord(r -> r.getName().equals(record2.getName()), ar -> {
        if (ar.succeeded()) {
            if (ar.result() != null) {
                // Retrieve the service reference
                ServiceReference reference = discovery.getReference(ar.result());
                // Retrieve the service object
                HttpClient client = reference.get();
                System.out.println("Consuming \"" + record2.getName() + "\"");
                client.getNow("/api", response -> {
                    // release the service
                    reference.release();
                });
            }
        }
    });
    discovery.close();
}
Also used : HttpClient(io.vertx.core.http.HttpClient) ServiceDiscoveryOptions(io.vertx.servicediscovery.ServiceDiscoveryOptions) JsonObject(io.vertx.core.json.JsonObject) Record(io.vertx.servicediscovery.Record) ServiceDiscovery(io.vertx.servicediscovery.ServiceDiscovery) ServiceReference(io.vertx.servicediscovery.ServiceReference)

Aggregations

HttpClient (io.vertx.core.http.HttpClient)1 JsonObject (io.vertx.core.json.JsonObject)1 Record (io.vertx.servicediscovery.Record)1 ServiceDiscovery (io.vertx.servicediscovery.ServiceDiscovery)1 ServiceDiscoveryOptions (io.vertx.servicediscovery.ServiceDiscoveryOptions)1 ServiceReference (io.vertx.servicediscovery.ServiceReference)1