class TrafficController {

  public int getClassIdFromFileContents(String input) {
    //convert from decimal back to fixed size hex form
    //e.g 4325381 -> 00420005
    String classIdStr = String.format("%08x", Integer.parseInt(input));

    if (LOG.isDebugEnabled()) {
      LOG.debug("ClassId hex string : " + classIdStr);
    }

    //extract and return 4 digits
    //e.g 00420005 -> 0005
    return Integer.parseInt(classIdStr.substring(4));
  }

    TrafficController(Configuration conf, PrivilegedOperationExecutor exec);

}