private void authorizeAuthorizationAPICall() throws InvalidOperationException, MetaException {
    for (HiveMetastoreAuthorizationProvider authorizer : tAuthorizers.get()) {
      try {
        authorizer.authorizeAuthorizationApiInvocation();
      } catch (AuthorizationException e) {
        throw invalidOperationException(e);
      } catch (HiveException e) {
        throw metaException(e);
      }
    }
  }
AuthorizationPreEventListener : A MetaStorePreEventListener that
performs authorization/authentication checks on the metastore-side.

Note that this can only perform authorization checks on defined
metastore PreEventContexts, such as the adding/dropping and altering
of databases, tables and partitions.
ql/src/java/org/apache/hadoop/hive/ql/security/authorization/AuthorizationPreEventListener.java