eventbus events weld consumer

[fiorenzino]

I created a simple project to test eventbus with cdi: https://github.com/fiorenzino/redpipe-eventbus

i created a subscriber using weld:

void echoConsumer(@Observes @VertxConsumer("test-queue") VertxEvent event) {
    System.out.println("received new event");
    System.out.println(event.getMessageBody());
}

My events never be received from consumer.

Suggestions?

[FroMage]

If you did add the redpipe-cdi module, then perhaps I'm not registering the vertx-cdi integration properly.

[FroMage]

I can reproduce, trying to understand why this happens.

[FroMage]

OK, I'm pretty sure it's related to the CDI context, which is not associated with the thread which is doing the event sending. Not sure at all how to fix that, though.

[FroMage]

Actually, I wonder if this is really about contexts and scopes. I'm pretty sure the resource bean is request-scoped by default, and the observer might need to be application scoped. If I make it application-scoped then it works. It also makes some sense, because observers don't make a lot of sense as request-scoped, no?

WDYT?

[fiorenzino]

You are right, if the consumer is annotated with @ApplicationScoped, it work correctly. I created a branch for that: https://github.com/fiorenzino/redpipe/tree/REDPIPE12/redpipe-example-cdi

@ApplicationScoped public class HelloService {

static final String HELLO_QUEUE = "test-queue";

public HelloService() {
    System.out.println("hello service construct");
}

public String name() {
    return "flower";
}
void helloConsumer(@Observes @VertxConsumer(HELLO_QUEUE) VertxEvent event) {
    System.out.println("hello " + event.getMessageBody());
}

}

[FroMage]

OK, I'll push a test for this and then close then.

[FroMage]

Done.