class SceneCatalogManager {

   public SceneCatalog getCatalog(String population) {
      if(catalogRef.get() == null) {
         loadCatalog();
      }
      if(StringUtils.isEmpty(population)) {
      	population = Population.NAME_GENERAL;
      }
      return catalogRef.get().get(population);
   }

   @Inject public  SceneCatalogManager(SceneConfig config, CapabilityRegistry registry, PopulationDAO populationDao);

}