apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/component/PermissionValidator.java/PermissionValidator/hasAssignRolePermission
class PermissionValidator:  public boolean hasAssignRolePermission(String appId) {
    return rolePermissionService.userHasPermission(userInfoHolder.getUser().getUserId(),
        PermissionType.ASSIGN_ROLE,
        appId);
  }