@Override
  public VERSION getVersion() {
    return VERSION.V1;
  }
Convenience implementation of HiveAuthorizer.
You can customize the behavior by passing different implementations of
{@link HiveAccessController} and {@link HiveAuthorizationValidator} to constructor.
ql/src/java/org/apache/hadoop/hive/ql/security/authorization/plugin/HiveAuthorizerImpl.java