MainVerticle.java

package io.vertx.example.core.verticle.worker;

import io.vertx.core.AbstractVerticle;
import io.vertx.core.DeploymentOptions;
import io.vertx.example.util.Runner;

/**
 * An example illustrating how worker verticles can be deployed and how to interact with them.
 *
 * This example prints the name of the current thread at various locations to exhibit the event loop <-> worker
 * thread switches.
 */
public class MainVerticle extends AbstractVerticle {

  // Convenience method so you can run it in your IDE
  public static void main(String[] args) {
    Runner.runExample(MainVerticle.class);
  }

  @Override
  public void start() throws Exception {
    System.out.println("[Main] Running in " + Thread.currentThread().getName());
    vertx
        .deployVerticle("io.vertx.example.core.verticle.worker.WorkerVerticle",
            new DeploymentOptions().setWorker(true));

    vertx.eventBus().send(
        "sample.data",
        "hello vert.x",
        r -> {
          System.out.println("[Main] Receiving reply ' " + r.result().body()
              + "' in " + Thread.currentThread().getName());
        }
    );
  }
}