/**
   * Gets the current acl assignments of the requested vCenter.
   *
   * @param vcenterId
   * @return the list of acl assignments of the requested vCenter.
   */
  private ACLAssignments getAclAssignmentsResponse(URI vcenterId) {
    Vcenter vcenter = queryObject(Vcenter.class, vcenterId, true);
    ArgValidator.checkEntity(vcenter, vcenterId, isIdEmbeddedInURL(vcenterId));

    ACLAssignments response = new ACLAssignments();
    response.setAssignments(_permissionsHelper.convertToACLEntries(vcenter.getAcls()));

    return response;
  }
 private ACLAssignments getRoleAssignmentsResponse(URI id) {
   CatalogService catalogService = catalogServiceManager.getCatalogServiceById(id);
   ACLAssignments response = new ACLAssignments();
   response.setAssignments(_permissionsHelper.convertToACLEntries(catalogService.getAcls()));
   return response;
 }