Vert.x 5 update

[vietj]

Considerations:

• convert AbstractVerticle to VerticleBase
• use test containers whenever possible : Mongo / Cassandra / ...
• refresh
  • Web Client Twitter Oauth example
  • ...
• cleanups
  • Gradle

See

• https://github.com/eclipse-vertx/vertx-launcher/issues/12

Server verticle

• rely on the launcher to print the verticle deployment failure

// 4.x

public static void main(String[] args) {
  VertxApplication.main(new String[]{Server.class.getName()});
}

...

public void start() {
  ...
  server.listen().onComplete(ar -> {
    if (ar.succeeded()) {
      System.out.println("Server started");
    } else {
      System.out.println("Server listen failed " + ar.cause().getMessage());
    }
  });
}

// 5.0

public static void main(String[] args) {
  VertxApplication.main(new String[]{Server.class.getName()});
  System.out.println("Server started");
}

...

public Future<?> start() {
  ...
  return server.listen();
}

Client verticle

• rely on the launcher to print the verticle deployment failure

// 4.x

public void start() {
  ...
  return client.asyncInteraction()
    .onSuccess(response -> System.out.println("Got response"))
   .onFailure(error -> System.out.println("Failed" + error.getMessage()));
}

// 5.0

public Future<?> start() {
  ...
  return client.asyncInteraction()
    .onSuccess(response -> System.out.println("Got response"));
}

[vietj]

cc @tsegismont

[tsegismont]

client tests should get away from using a verticle, a plain main should be enough

I believe we should review all client classes and make a decision on a case-by-case basis.

[vietj]

@tsegismont I think we will keep with VerticleBase for clients

[tsegismont]

• Per db client

What do you mean with this?

[vietj]

• Per db client

What do you mean with this?

I wish we could have at least one example for each database client using test container.