examples.EventBusExamples Maven / Gradle / Ivy
/*
* Copyright 2014 Red Hat, Inc.
*
* 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.Vertx;
import io.vertx.core.VertxOptions;
import io.vertx.core.eventbus.DeliveryOptions;
import io.vertx.core.eventbus.EventBus;
import io.vertx.core.eventbus.MessageConsumer;
/**
* Created by tim on 09/01/15.
*/
public class EventBusExamples {
public void example0_5(Vertx vertx) {
EventBus eb = vertx.eventBus();
}
public void example1(Vertx vertx) {
EventBus eb = vertx.eventBus();
eb.consumer("news.uk.sport", message -> {
System.out.println("I have received a message: " + message.body());
});
}
public void example2(Vertx vertx) {
EventBus eb = vertx.eventBus();
MessageConsumer consumer = eb.consumer("news.uk.sport");
consumer.handler(message -> {
System.out.println("I have received a message: " + message.body());
});
}
public void example3(MessageConsumer consumer) {
consumer.completionHandler(res -> {
if (res.succeeded()) {
System.out.println("The handler registration has reached all nodes");
} else {
System.out.println("Registration failed!");
}
});
}
public void example4(MessageConsumer consumer) {
consumer.unregister(res -> {
if (res.succeeded()) {
System.out.println("The handler un-registration has reached all nodes");
} else {
System.out.println("Un-registration failed!");
}
});
}
public void example5(EventBus eventBus) {
eventBus.publish("news.uk.sport", "Yay! Someone kicked a ball");
}
public void example6(EventBus eventBus) {
eventBus.send("news.uk.sport", "Yay! Someone kicked a ball");
}
public void example8(EventBus eventBus) {
MessageConsumer consumer = eventBus.consumer("news.uk.sport");
consumer.handler(message -> {
System.out.println("I have received a message: " + message.body());
message.reply("how interesting!");
});
}
public void example9(EventBus eventBus) {
eventBus.send("news.uk.sport", "Yay! Someone kicked a ball across a patch of grass", ar -> {
if (ar.succeeded()) {
System.out.println("Received reply: " + ar.result().body());
}
});
}
public void example12() {
VertxOptions options = new VertxOptions();
Vertx.clusteredVertx(options, res -> {
if (res.succeeded()) {
Vertx vertx = res.result();
EventBus eventBus = vertx.eventBus();
System.out.println("We now have a clustered event bus: " + eventBus);
} else {
System.out.println("Failed: " + res.cause());
}
});
}
}