code: public static String getAlluxioFileName(String path) {
      if (path.isEmpty()) {
        return AlluxioURI.SEPARATOR;
      }
  
      while (path.contains(":")) {
        int index = path.indexOf(":");
        path = path.substring(index + 1);
      }
  
      while (!path.startsWith(AlluxioURI.SEPARATOR)) {
        path = path.substring(1);
      }
  
      return path;
    }
docs: Given a {@code String} path, returns an equivalent Alluxio path.
  
  @param path the path to parse
  @return a valid Alluxio path