/** Displays the labels and the values for the panel. */
    protected void displayPnlFields(HashMap hmPnl) {
      if (hmPnl == null || hmPnl.isEmpty()) return;

      Iterator keySetItr = hmPnl.keySet().iterator();
      String strLabel = "";
      String strValue = "";

      // if the file is empty, then create an empty set of textfields.
      if (hmPnl == null || hmPnl.isEmpty()) {
        displayNewTxf("", "");
        return;
      }

      Container container = getParent();
      if (container != null) container.setVisible(false);
      try {
        // Get each set of label and value, and display them.
        while (keySetItr.hasNext()) {
          strLabel = (String) keySetItr.next();
          strValue = (String) hmPnl.get(strLabel);

          displayNewTxf(strLabel, strValue);
        }

        if (container != null) container.setVisible(true);
        revalidate();
        repaint();
      } catch (Exception e) {
        Messages.writeStackTrace(e);
        // e.printStackTrace();
        Messages.postDebug(e.toString());
      }
    }
    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();
      }
    }
    /** Reads the file, and sets the label and the values in the hashmap. */
    protected void setHM(String strPath, HashMap hmPnl) {
      BufferedReader reader = WFileUtil.openReadFile(strPath);
      boolean bFileEmpty = true;
      boolean bPart11Pnl = isPart11Pnl();
      boolean bDefaultFile = isDefaultFile();

      // if the file is empty, then create an empty set of textfields.
      if (reader == null) {
        // displayNewTxf("","");
        return;
      }

      String strLine = null;
      StringTokenizer strTok;

      try {
        // read the file, and create a new set of textfields,
        // with the values from the file.
        while ((strLine = reader.readLine()) != null) {
          String strLabel = "";
          String strValue = "";
          bFileEmpty = false;

          if (strLine.startsWith("#")
              || strLine.startsWith("@")
              || strLine.startsWith("%")
              || strLine.startsWith("\"@")) continue;

          if (strLine.startsWith("\"")) strTok = new StringTokenizer(strLine, "\"");
          else strTok = new StringTokenizer(strLine, File.pathSeparator + ",\n");

          if (!strTok.hasMoreTokens()) continue;

          strLabel = strTok.nextToken();

          // the format for the part11 Default file is a little different
          // only parse out the part11Dir, and don't display other defaults
          if (bPart11Pnl && bDefaultFile) {
            if (!strLabel.equalsIgnoreCase("part11Dir")) continue;
          }

          if (strTok.hasMoreTokens()) {
            while (strTok.hasMoreTokens()) {
              strValue += strTok.nextToken();
              if (strTok.hasMoreTokens()) strValue += " ";
            }
          }

          // append "/data/$name" to part11Dir
          if (bPart11Pnl && bDefaultFile && strLabel.equalsIgnoreCase("part11Dir")) {
            StringBuffer sbDir = new StringBuffer(strValue);
            if (sbDir.lastIndexOf(File.separator) < sbDir.length() - 1)
              sbDir.append(File.separator);
            sbDir.append("data" + File.separator + "$");
            sbDir.append(WGlobal.NAME);
            strValue = sbDir.toString();
          }

          // displayNewTxf(strLabel, strValue);
          if (strLabel != null && strLabel.trim().length() > 0) hmPnl.put(strLabel, strValue);
        }
        reader.close();
      } catch (Exception e) {
        Messages.writeStackTrace(e);
        // e.printStackTrace();
        Messages.postDebug(e.toString());
      }
    }
    /**
     * Write the file by writing the values from the labels, and the values list.
     *
     * @param strFile the file to be written.
     * @param aListLabels arraylist of texfields of labels.
     * @param aListValues arraylist of texfields of values.
     */
    protected void writeFile(
        String strUser, String strFile, ArrayList aListLabels, ArrayList aListValues) {
      String strPath = FileUtil.openPath(strFile);
      String strLabel = "";
      String strValue = "";
      StringBuffer sbValues = new StringBuffer();
      JTextField txfLabel = null;
      JTextField txfValue = null;
      boolean bNewFile = false;
      int nFDAMode = Util.getPart11Mode();

      // if it's the part11 pnl and the mode is nonFDA,
      // then don't write the file for this panel
      // the other way is not true.
      if (this instanceof DisplayParentDirectory) {
        if ((isPart11Pnl() && nFDAMode == Util.NONFDA)) {
          return;
        }
      }

      if (strPath == null) {
        strPath = FileUtil.savePath(strFile);
        bNewFile = true;
      }

      if (strPath == null || aListLabels == null) return;

      if (aListValues == null) aListValues = new ArrayList();

      // Get the list of the textfields for values and labels.
      int nLblSize = aListLabels.size();
      int nValueSize = aListValues.size();
      ArrayList<String> labelList = new ArrayList<String>();

      // Get the value from each textfield, and add it to the buffer.
      for (int i = 0; i < nLblSize; i++) {
        txfLabel = (JTextField) aListLabels.get(i);
        txfValue = (i < nValueSize) ? (JTextField) aListValues.get(i) : null;

        strLabel = (txfLabel != null) ? txfLabel.getText() : null;
        strValue = (txfValue != null) ? txfValue.getText() : "";

        // We need to be sure they don't have two data directories with
        // the same labels.  Save the label list if we are writing to
        // the "data" file.
        if (strFile.indexOf("data") != -1) {
          if (labelList.contains(strLabel)) {
            Messages.postError(
                "The Data Directory specifications "
                    + "must not have duplicate Label names. "
                    + "The Label \""
                    + strLabel
                    + "\" is duplicated.  "
                    + "Skipping the second instance.  Please "
                    + "specify a new Label.");
            continue;
          } else labelList.add(strLabel);
        }

        if (strLabel == null || strLabel.trim().length() <= 0 || strValue.equals(INFOSTR)) continue;

        // for user template tab, don't need to parse the value
        if (!(this instanceof DisplayTemplate)) strValue = getValue(strUser, strValue);
        strLabel = strLabel.trim();
        if (strValue != null) strValue = strValue.trim();

        // sbValues.append("\"");
        sbValues.append(strLabel);
        // sbValues.append("\"  ");

        sbValues.append(File.pathSeparator);
        sbValues.append(strValue);
        sbValues.append("\n");
      }

      if (Util.isPart11Sys()) writeAuditTrail(strPath, strUser, sbValues);

      // write the data to the file.
      BufferedWriter writer = WFileUtil.openWriteFile(strPath);
      WFileUtil.writeAndClose(writer, sbValues);

      // if it's a template file, then make it writable for everyone.
      if (bNewFile) {
        String strCmd = "chmod 755 ";
        if (this instanceof DisplayTemplate) strCmd = "chmod 777 ";
        if (Util.iswindows()) strPath = UtilB.windowsPathToUnix(strPath);
        String[] cmd = {WGlobal.SHTOOLCMD, WGlobal.SHTOOLOPTION, strCmd + strPath};
        WUtil.runScriptInThread(cmd);
      }
    }