@Override
  //todo: continue to use dao/entity directly or use blueprint factory?
  public Set<Resource> getResources(Request request, Predicate predicate)
      throws SystemException, UnsupportedPropertyException,
      NoSuchResourceException, NoSuchParentResourceException {

    List<BlueprintEntity> results        = null;
    boolean               applyPredicate = false;

    if (predicate != null) {
      Set<Map<String, Object>> requestProps = getPropertyMaps(predicate);
      if (requestProps.size() == 1 ) {
        String name = (String) requestProps.iterator().next().get(
            BLUEPRINT_NAME_PROPERTY_ID);

        if (name != null) {
          BlueprintEntity entity = blueprintDAO.findByName(name);
          results = entity == null ? Collections.emptyList() :
              Collections.singletonList(entity);
        }
      }
    }

    if (results == null) {
      applyPredicate = true;
      results = blueprintDAO.findAll();
    }

    Set<Resource> resources  = new HashSet<>();
    for (BlueprintEntity entity : results) {
      Resource resource = toResource(entity, getRequestPropertyIds(request, predicate));
      if (predicate == null || ! applyPredicate || predicate.evaluate(resource)) {
        resources.add(resource);
      }
    }

    if (predicate != null && resources.isEmpty()) {
      throw new NoSuchResourceException(
          "The requested resource doesn't exist: Blueprint not found, " + predicate);
    }

    return resources;
  }
Static initialization.

@param factory   blueprint factory
@param bpDao       blueprint data access object
@param gson      json serializer
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/BlueprintResourceProvider.java