examples.EventBusServiceExamples.java Source code

Introduction

Here is the source code for examples.EventBusServiceExamples.java

Source

/*
 * Copyright (c) 2011-2016 The original author or authors
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Apache License v2.0 which accompanies this distribution.
 *
 *      The Eclipse Public License is available at
 *      http://www.eclipse.org/legal/epl-v10.html
 *
 *      The Apache License v2.0 is available at
 *      http://www.opensource.org/licenses/apache2.0.php
 *
 * You may elect to redistribute this code under either of these licenses.
 */

package examples;

import io.vertx.core.json.JsonObject;
import io.vertx.servicediscovery.ServiceDiscovery;
import io.vertx.servicediscovery.Record;
import io.vertx.servicediscovery.ServiceReference;
import io.vertx.servicediscovery.types.EventBusService;

/**
 * @author <a href="http://escoffier.me">Clement Escoffier</a>
 */
public class EventBusServiceExamples {

    public void example1(ServiceDiscovery discovery) {
        Record record = EventBusService.createRecord("some-eventbus-service", // The service name
                "address", // the service address,
                "examples.MyService", // the service interface as string
                new JsonObject().put("some-metadata", "some value"));

        discovery.publish(record, ar -> {
            // ...
        });
    }

    public void example2(ServiceDiscovery discovery) {
        // Get the record
        discovery.getRecord(new JsonObject().put("name", "some-eventbus-service"), ar -> {
            if (ar.succeeded() && ar.result() != null) {
                // Retrieve the service reference
                ServiceReference reference = discovery.getReference(ar.result());
                // Retrieve the service object
                MyService service = reference.get();

                // Dont' forget to release the service
                reference.release();
            }
        });
    }

    // Java only
    public void example3(ServiceDiscovery discovery) {
        EventBusService.getProxy(discovery, MyService.class, ar -> {
            if (ar.succeeded()) {
                MyService service = ar.result();

                // Dont' forget to release the service
                ServiceDiscovery.releaseServiceObject(discovery, service);
            }
        });
    }

}