Hi All,

In Seam Social, in order to support polymorphism I need the service beans to be qualified with the name of the service. For instance :

@RelatedTo("LinkedIn")
public class LinkedInJackson extends OAuthServiceBase implements LinkedIn

It allows users to inject a service bean like that 

@Inject @RelatedTo("LinkedIn")
OAuthService service;

As I want to ease user life I also need to support this kind of injection (same results as above) 

@Inject
LinkedIn service;

As LinkedIn interface has only one implementation, using a qualifier when I use its specific type is useless and could be confusing.

Until now I registered the second version of the bean (without a qualifier) thru a producer, but as each service bean will have both registration (with and without qualifier) I decided to simplify this bi-registration with an extension (it will also ease the writing of new service bean for third party developers).

My extension works in 2 steps :
First it collects in a Map all the annotated type which are OAuthService children and have a @RelatedTo qualifier :

public void processServicesBeans(@Observes ProcessManagedBean<OAuthService> pbean) {
        Annotated annotated = pbean.getAnnotated();
        if (annotated.isAnnotationPresent(RelatedTo.class)) {
            RelatedTo related = annotated.getAnnotation(RelatedTo.class);
            String name = related.value();
            servicesBean.put(name, pbean.getAnnotatedBeanClass());
        }
    }

Then, after the bean discovery, it register a new version of each Qualified bean without the qualifier (thanks to solder !).

public void afterBeanDiscovery(@Observes AfterBeanDiscovery abd, BeanManager bm) {
        for (String type : servicesBean.keySet()) {
            AnnotatedType<? extends OAuthService> annotatedType = servicesBean.get(type);
            AnnotatedTypeBuilder annoBuilder = new AnnotatedTypeBuilder().readFromType(annotatedType).removeFromClass(
                    RelatedTo.class);
            AnnotatedType myAnnotatedType = annoBuilder.create();
            BeanBuilder beanBuilder = new BeanBuilder(bm).readFromType(myAnnotatedType);
            abd.addBean(beanBuilder.create());
        }
    }

This seems to work quite well except that my service Beans have a @Postconstruct method and at initialization Weld throws the following exception

org.jboss.weld.exceptions.DefinitionException: WELD-000805 Cannot have more than one post construct method annotated with @PostConstruct for public class org.jboss.seam.social.linkedin.LinkedInJackson


If I remove the @Postconstuct in the AnnotatedTypeBuilder by changing its declaration by :

AnnotatedTypeBuilder annoBuilder = new AnnotatedTypeBuilder().readFromType(annotatedType).removeFromClass(
                    RelatedTo.class).removeFromAll(PostConstruct.class);

Initialization works, I have my 2 beans, but the one I registered without qualifier won't execute the @PostConstruct method (since I had to remove it). I guess I'm missing something in the CDI meta-meta-maze :-). Any help or suggestion would be nice.

Thanks,

Antoine SABOT-DURAND