javax.enterprise.inject.spi.CDI.current().select(C.class).get()

@ApplicationScoped
public class DataProviderFactory {

   @Inject
   private ModuleManager moduleManager;

   @Produces
   public DataProviderService
         createService() {
      Set<String> moduleNames = moduleManager.getActiveModules()
                                             .stream()
                                             .map(module -> module.getModuleName())
                                             .collect(Collectors.toSet());
      if (moduleNames.contains("dataProvider")) {
         return javax.enterprise.inject.spi.CDI.current().select(DataProviderServiceMaste.class).get()
      } else {
         return javax.enterprise.inject.spi.CDI.current().select(DataProviderServiceSlave.class).get()      }
   }

}