protected void writeAuditTrail(String strPath, String strUser, StringBuffer sbValues) {
      BufferedReader reader = WFileUtil.openReadFile(strPath);
      String strLine;
      ArrayList aListData = WUtil.strToAList(sbValues.toString(), false, "\n");
      StringBuffer sbData = sbValues;
      String strPnl = (this instanceof DisplayTemplate) ? "Data Template " : "Data Dir ";
      if (reader == null) {
        Messages.postDebug("Error opening file " + strPath);
        return;
      }

      try {
        while ((strLine = reader.readLine()) != null) {
          // if the line in the file is not in the arraylist,
          // then that line has been deleted
          if (!aListData.contains(strLine))
            WUserUtil.writeAuditTrail(new Date(), strUser, "Deleted " + strPnl + strLine);

          // remove the lines that are also in the file or those which
          // have been deleted.
          aListData.remove(strLine);
        }

        // Traverse through the remaining new lines in the arraylist,
        // and write it to the audit trail
        for (int i = 0; i < aListData.size(); i++) {
          strLine = (String) aListData.get(i);
          WUserUtil.writeAuditTrail(new Date(), strUser, "Added " + strPnl + strLine);
        }
        reader.close();
      } catch (Exception e) {
        e.printStackTrace();
      }
    }