@Override
        public Boolean run() throws Exception {
          FileSystem fsAsUser = FileSystem.get(fs.getUri(), fs.getConf());
          return checkIsOwnerOfFileHierarchy(fsAsUser, fileStatus, userName, recurse);
        }
A best effort attempt to determine if if the file is a local file
@param conf
@param fileUri
@return true if it was successfully able to determine that it is a local file
common/src/java/org/apache/hadoop/hive/common/FileUtils.java