apollo-portal/src/main/java/com/ctrip/framework/apollo/openapi/auth/ConsumerPermissionValidator.java/ConsumerPermissionValidator/hasCreateNamespacePermission
class ConsumerPermissionValidator:  public boolean hasCreateNamespacePermission(HttpServletRequest request, String appId) {
    return permissionService.consumerHasPermission(consumerAuthUtil.retrieveConsumerId(request),
        PermissionType.CREATE_NAMESPACE, appId);
  }