public static boolean isOwnerOfFileHierarchy(FileSystem fs, FileStatus fileStatus, String userName)
      throws IOException, InterruptedException {
    return isOwnerOfFileHierarchy(fs, fileStatus, userName, true);
  }
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