Ejemplo n.º 1
0
  /** Load the data of the selected parameter into the table */
  private void list_selected() {
    String key;
    try {
      key = getCurrentKey();
    } catch (Exception e1) {
      return;
    }
    MeasurementHistoryController hist = master.getHistoryController();
    MeasurementHistory data;
    try {
      if (getCurrentTimeBase().equals("hours")) data = hist.getDataHours().get(key);
      else data = hist.getDataDays().get(key);
    } catch (Exception ex) {
      return;
    }

    Vector<MeasurementHistoryEntry> newData =
        new Vector<MeasurementHistoryEntry>(data.getValues().size());
    newData.addAll(data.getValues());

    Collections.sort(newData);
    Collections.reverse(newData);
    dataTable.removeAll();

    SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT);

    for (MeasurementHistoryEntry e : newData) {
      TableItem item = new TableItem(dataTable, SWT.NONE);
      item.setText(new String[] {sdf.format(e.getTimestamp()), "" + e.getValue()});
    }
  }
Ejemplo n.º 2
0
  /** Export the selected values from the table to a csv file */
  private void export() {

    FileDialog dialog = new FileDialog(shell, SWT.SAVE);
    String[] filterNames = new String[] {"CSV Files", "All Files (*)"};
    String[] filterExtensions = new String[] {"*.csv;", "*"};
    String filterPath = "/";
    String platform = SWT.getPlatform();
    if (platform.equals("win32") || platform.equals("wpf")) {
      filterNames = new String[] {"CSV Files", "All Files (*.*)"};
      filterExtensions = new String[] {"*.csv", "*.*"};
      filterPath = "c:\\";
    }
    dialog.setFilterNames(filterNames);
    dialog.setFilterExtensions(filterExtensions);
    dialog.setFilterPath(filterPath);
    try {
      dialog.setFileName(this.getCurrentKey() + ".csv");
    } catch (Exception e) {
      dialog.setFileName("export.csv");
    }
    String fileName = dialog.open();

    FileOutputStream fos;
    OutputStreamWriter out;
    try {
      fos = new FileOutputStream(fileName);
      out = new OutputStreamWriter(fos, "UTF-8");
    } catch (Exception e) {
      MessageBox messageBox = new MessageBox(shell, SWT.OK | SWT.ICON_ERROR);
      messageBox.setMessage("Error creating export file " + fileName + " : " + e.getMessage());
      messageBox.open();
      return;
    }

    Vector<TableItem> sel = new Vector<TableItem>(this.dataTable.getSelection().length);

    sel.addAll(Arrays.asList(this.dataTable.getSelection()));
    Collections.reverse(sel);

    for (TableItem item : sel) {
      String date = item.getText(0);
      String value = item.getText(1);
      try {
        out.write(date + ";" + value + "\n");
      } catch (IOException e) {
        continue;
      }
    }

    try {
      out.close();
      fos.close();
    } catch (IOException e) {
      MessageBox messageBox = new MessageBox(shell, SWT.OK | SWT.ICON_ERROR);
      messageBox.setMessage("Error writing export file " + fileName + " : " + e.getMessage());
      messageBox.open();
      e.printStackTrace();
    }
  }
Ejemplo n.º 3
0
 private void newEntry() {
   DataEntryDialog dialog = new DataEntryDialog(shell);
   dialog.setLabels(columnNames);
   String[] data = dialog.open();
   if (data != null) {
     TableItem item = new TableItem(table, SWT.NONE);
     item.setText(data);
     isModified = true;
   }
 }
Ejemplo n.º 4
0
 private void editEntry(TableItem item) {
   DataEntryDialog dialog = new DataEntryDialog(shell);
   dialog.setLabels(columnNames);
   String[] values = new String[table.getColumnCount()];
   for (int i = 0; i < values.length; i++) {
     values[i] = item.getText(i);
   }
   dialog.setValues(values);
   values = dialog.open();
   if (values != null) {
     item.setText(values);
     isModified = true;
   }
 }
Ejemplo n.º 5
0
 void tableMouseDown(Event event) {
   if (isDisposed() || !isVisible()) return;
   Point pt = new Point(event.x, event.y);
   int lineWidth = table.getLinesVisible() ? table.getGridLineWidth() : 0;
   TableItem item = table.getItem(pt);
   if ((table.getStyle() & SWT.FULL_SELECTION) != 0) {
     if (item == null) return;
   } else {
     int start = item != null ? table.indexOf(item) : table.getTopIndex();
     int end = table.getItemCount();
     Rectangle clientRect = table.getClientArea();
     for (int i = start; i < end; i++) {
       TableItem nextItem = table.getItem(i);
       Rectangle rect = nextItem.getBounds(0);
       if (pt.y >= rect.y && pt.y < rect.y + rect.height + lineWidth) {
         item = nextItem;
         break;
       }
       if (rect.y > clientRect.y + clientRect.height) return;
     }
     if (item == null) return;
   }
   TableColumn newColumn = null;
   int columnCount = table.getColumnCount();
   if (columnCount == 0) {
     if ((table.getStyle() & SWT.FULL_SELECTION) == 0) {
       Rectangle rect = item.getBounds(0);
       rect.width += lineWidth;
       rect.height += lineWidth;
       if (!rect.contains(pt)) return;
     }
   } else {
     for (int i = 0; i < columnCount; i++) {
       Rectangle rect = item.getBounds(i);
       rect.width += lineWidth;
       rect.height += lineWidth;
       if (rect.contains(pt)) {
         newColumn = table.getColumn(i);
         break;
       }
     }
     if (newColumn == null) {
       if ((table.getStyle() & SWT.FULL_SELECTION) == 0) return;
       newColumn = table.getColumn(0);
     }
   }
   setRowColumn(item, newColumn, true);
   setFocus();
   return;
 }
Ejemplo n.º 6
0
  private boolean findMatch(
      String searchString, TableItem item, int column, boolean matchWord, boolean matchCase) {

    String tableText = matchCase ? item.getText(column) : item.getText(column).toLowerCase();
    if (matchWord) {
      if (tableText != null && tableText.equals(searchString)) {
        return true;
      }

    } else {
      if (tableText != null && tableText.indexOf(searchString) != -1) {
        return true;
      }
    }
    return false;
  }
Ejemplo n.º 7
0
 void _resize() {
   if (row == null) {
     setBounds(-200, -200, 0, 0);
   } else {
     int columnIndex = column == null ? 0 : table.indexOf(column);
     setBounds(row.getBounds(columnIndex));
   }
 }
Ejemplo n.º 8
0
 /**
  * Positions the TableCursor over the cell at the given row and column in the parent table.
  *
  * @param row the TableItem of the row for the cell to select
  * @param column the index of column for the cell to select
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
  *       <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
  *     </ul>
  */
 public void setSelection(TableItem row, int column) {
   checkWidget();
   int columnCount = table.getColumnCount();
   int maxColumnIndex = columnCount == 0 ? 0 : columnCount - 1;
   if (row == null || row.isDisposed() || column < 0 || column > maxColumnIndex)
     SWT.error(SWT.ERROR_INVALID_ARGUMENT);
   setRowColumn(table.indexOf(row), column, false);
 }
Ejemplo n.º 9
0
  /**
   * Delete Values from the history
   *
   * @param all when true the whole history of the selected parameter is deleted
   */
  private void delete(boolean all) {

    MessageBox messageBox = new MessageBox(shell, SWT.YES | SWT.NO | SWT.ICON_QUESTION);
    messageBox.setMessage("Are you shure you want to delete these entries?");
    messageBox.setText("Delete History?");

    if (messageBox.open() == SWT.NO) return;

    String key, timebase;
    try {
      key = getCurrentKey();
      timebase = getCurrentTimeBase();
    } catch (Exception e) {
      return;
    }
    MeasurementHistoryController hist = master.getHistoryController();
    MeasurementHistory measurements;

    if (timebase.equals("hours")) measurements = hist.getDataHours().get(key);
    else measurements = hist.getDataDays().get(key);

    if (all) {
      measurements.removeAll();
    } else {
      for (TableItem item : this.dataTable.getSelection()) {
        String date = item.getText(0);
        String value = item.getText(1);

        SimpleDateFormat bla = new SimpleDateFormat(DATE_FORMAT);
        Date tmpdate;
        try {
          tmpdate = bla.parse(date);
        } catch (ParseException e) {
          e.printStackTrace();
          continue;
        }

        MeasurementHistoryEntry tmp =
            new MeasurementHistoryEntry(Double.parseDouble(value), tmpdate);
        measurements.removeEntry(tmp);
      }
    }
    this.list_selected();
  }
 private void launchEditor(TableItem item) {
   String theCommand = resUser.getString("Custom_editor");
   theCommand = theCommand.replaceAll("%file%", item.getText(3));
   theCommand = theCommand.replaceAll("%line%", item.getText(1));
   theCommand = theCommand.replace('/', File.separatorChar);
   theCommand = theCommand.replaceAll("%slash%", "/");
   try {
     Runtime.getRuntime().exec(theCommand);
   } catch (IOException e) {
     displayError("Error launching editor: " + e.getMessage());
   }
 }
Ejemplo n.º 11
0
 void unhookRowColumnListeners() {
   if (column != null) {
     column.removeListener(SWT.Dispose, disposeColumnListener);
     column.removeListener(SWT.Move, resizeListener);
     column.removeListener(SWT.Resize, resizeListener);
     column = null;
   }
   if (row != null) {
     row.removeListener(SWT.Dispose, disposeItemListener);
     row = null;
   }
 }
Ejemplo n.º 12
0
 public static void main(String[] args) {
   Display display = new Display();
   Shell shell = new Shell(display);
   final Table table = new Table(shell, SWT.BORDER | SWT.MULTI);
   Rectangle clientArea = shell.getClientArea();
   table.setBounds(clientArea.x, clientArea.y, 200, 200);
   for (int i = 0; i < 128; i++) {
     TableItem item = new TableItem(table, SWT.NONE);
     item.setText("Item " + i);
   }
   Menu menu = new Menu(shell, SWT.POP_UP);
   table.setMenu(menu);
   MenuItem item = new MenuItem(menu, SWT.PUSH);
   item.setText("Delete Selection");
   item.addListener(SWT.Selection, event -> table.remove(table.getSelectionIndices()));
   shell.pack();
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch()) display.sleep();
   }
   display.dispose();
 }
Ejemplo n.º 13
0
 void setRowColumn(TableItem row, TableColumn column, boolean notify) {
   if (this.row == row && this.column == column) {
     return;
   }
   if (this.row != null && this.row != row) {
     this.row.removeListener(SWT.Dispose, disposeItemListener);
     this.row = null;
   }
   if (this.column != null && this.column != column) {
     this.column.removeListener(SWT.Dispose, disposeColumnListener);
     this.column.removeListener(SWT.Move, resizeListener);
     this.column.removeListener(SWT.Resize, resizeListener);
     this.column = null;
   }
   if (row != null) {
     if (this.row != row) {
       this.row = row;
       row.addListener(SWT.Dispose, disposeItemListener);
       table.showItem(row);
     }
     if (this.column != column && column != null) {
       this.column = column;
       column.addListener(SWT.Dispose, disposeColumnListener);
       column.addListener(SWT.Move, resizeListener);
       column.addListener(SWT.Resize, resizeListener);
       table.showColumn(column);
     }
     int columnIndex = column == null ? 0 : table.indexOf(column);
     setBounds(row.getBounds(columnIndex));
     redraw();
     if (notify) {
       notifyListeners(SWT.Selection, new Event());
     }
   }
   getAccessible().setFocus(ACC.CHILDID_SELF);
 }
Ejemplo n.º 14
0
 public static void main(String[] args) {
   Display display = new Display();
   Shell shell = new Shell(display);
   shell.setLayout(new FillLayout());
   final Table table = new Table(shell, SWT.BORDER);
   table.setHeaderVisible(true);
   final TableColumn column1 = new TableColumn(table, SWT.NONE);
   column1.setText("Column 1");
   final TableColumn column2 = new TableColumn(table, SWT.NONE);
   column2.setText("Column 2");
   TableItem item = new TableItem(table, SWT.NONE);
   item.setText(new String[] {"a", "3"});
   item = new TableItem(table, SWT.NONE);
   item.setText(new String[] {"b", "2"});
   item = new TableItem(table, SWT.NONE);
   item.setText(new String[] {"c", "1"});
   column1.setWidth(100);
   column2.setWidth(100);
   Listener sortListener =
       e -> {
         TableItem[] items = table.getItems();
         Collator collator = Collator.getInstance(Locale.getDefault());
         TableColumn column = (TableColumn) e.widget;
         int index = column == column1 ? 0 : 1;
         for (int i = 1; i < items.length; i++) {
           String value1 = items[i].getText(index);
           for (int j = 0; j < i; j++) {
             String value2 = items[j].getText(index);
             if (collator.compare(value1, value2) < 0) {
               String[] values = {items[i].getText(0), items[i].getText(1)};
               items[i].dispose();
               TableItem item1 = new TableItem(table, SWT.NONE, j);
               item1.setText(values);
               items = table.getItems();
               break;
             }
           }
         }
         table.setSortColumn(column);
       };
   column1.addListener(SWT.Selection, sortListener);
   column2.addListener(SWT.Selection, sortListener);
   table.setSortColumn(column1);
   table.setSortDirection(SWT.UP);
   shell.setSize(shell.computeSize(SWT.DEFAULT, SWT.DEFAULT).x, 300);
   shell.open();
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch()) display.sleep();
   }
   display.dispose();
 }
  private void openAddressBook(String name) {
    if (name == null) return;
    File file = new File(name);
    if (!file.exists()) {
      displayError(
          resMessages.getString("File")
              + file.getName()
              + " "
              + resMessages.getString("Does_not_exist"));
      return;
    }

    Cursor waitCursor = new Cursor(shell.getDisplay(), SWT.CURSOR_WAIT);
    shell.setCursor(waitCursor);

    FileReader fileReader = null;
    BufferedReader bufferedReader = null;
    String[] data = new String[0];
    try {
      fileReader = new FileReader(file.getAbsolutePath());
      bufferedReader = new BufferedReader(fileReader);
      String nextLine = bufferedReader.readLine();
      while (nextLine != null) {
        String[] newData = new String[data.length + 1];
        System.arraycopy(data, 0, newData, 0, data.length);
        newData[data.length] = nextLine;
        data = newData;
        nextLine = bufferedReader.readLine();
      }
    } catch (FileNotFoundException e) {
      displayError(resMessages.getString("File_not_found") + "\n" + file.getName());
      return;
    } catch (IOException e) {
      displayError(resMessages.getString("IO_error_read") + "\n" + file.getName());
      return;
    } finally {

      shell.setCursor(null);
      waitCursor.dispose();

      if (fileReader != null) {
        try {
          fileReader.close();
        } catch (IOException e) {
          displayError(resMessages.getString("IO_error_close") + "\n" + file.getName());
          return;
        }
      }
    }

    String[][] tableInfo = new String[data.length][table.getColumnCount()];
    for (int i = 0; i < data.length; i++) {
      tableInfo[i] = decodeLine(data[i]);
    }

    Arrays.sort(tableInfo, new RowComparator(0));

    for (int i = 0; i < tableInfo.length; i++) {
      TableItem item = new TableItem(table, SWT.NONE);
      item.setText(tableInfo[i]);
    }
    shell.setText(resMessages.getString("Title_bar") + file.getName());
    isModified = false;
    this.file = file;
  }
Ejemplo n.º 16
0
 void keyDown(Event event) {
   if (row == null) return;
   switch (event.character) {
     case SWT.CR:
       notifyListeners(SWT.DefaultSelection, new Event());
       return;
   }
   int rowIndex = table.indexOf(row);
   int columnIndex = column == null ? 0 : table.indexOf(column);
   switch (event.keyCode) {
     case SWT.ARROW_UP:
       setRowColumn(Math.max(0, rowIndex - 1), columnIndex, true);
       break;
     case SWT.ARROW_DOWN:
       setRowColumn(Math.min(rowIndex + 1, table.getItemCount() - 1), columnIndex, true);
       break;
     case SWT.ARROW_LEFT:
     case SWT.ARROW_RIGHT:
       {
         int columnCount = table.getColumnCount();
         if (columnCount == 0) break;
         int[] order = table.getColumnOrder();
         int index = 0;
         while (index < order.length) {
           if (order[index] == columnIndex) break;
           index++;
         }
         if (index == order.length) index = 0;
         int leadKey = (getStyle() & SWT.RIGHT_TO_LEFT) != 0 ? SWT.ARROW_RIGHT : SWT.ARROW_LEFT;
         if (event.keyCode == leadKey) {
           setRowColumn(rowIndex, order[Math.max(0, index - 1)], true);
         } else {
           setRowColumn(rowIndex, order[Math.min(columnCount - 1, index + 1)], true);
         }
         break;
       }
     case SWT.HOME:
       setRowColumn(0, columnIndex, true);
       break;
     case SWT.END:
       {
         int i = table.getItemCount() - 1;
         setRowColumn(i, columnIndex, true);
         break;
       }
     case SWT.PAGE_UP:
       {
         int index = table.getTopIndex();
         if (index == rowIndex) {
           Rectangle rect = table.getClientArea();
           TableItem item = table.getItem(index);
           Rectangle itemRect = item.getBounds(0);
           rect.height -= itemRect.y;
           int height = table.getItemHeight();
           int page = Math.max(1, rect.height / height);
           index = Math.max(0, index - page + 1);
         }
         setRowColumn(index, columnIndex, true);
         break;
       }
     case SWT.PAGE_DOWN:
       {
         int index = table.getTopIndex();
         Rectangle rect = table.getClientArea();
         TableItem item = table.getItem(index);
         Rectangle itemRect = item.getBounds(0);
         rect.height -= itemRect.y;
         int height = table.getItemHeight();
         int page = Math.max(1, rect.height / height);
         int end = table.getItemCount() - 1;
         index = Math.min(end, index + page - 1);
         if (index == rowIndex) {
           index = Math.min(end, index + page - 1);
         }
         setRowColumn(index, columnIndex, true);
         break;
       }
   }
 }
Ejemplo n.º 17
0
 void paint(Event event) {
   if (row == null) return;
   int columnIndex = column == null ? 0 : table.indexOf(column);
   GC gc = event.gc;
   gc.setBackground(getBackground());
   gc.setForeground(getForeground());
   gc.fillRectangle(event.x, event.y, event.width, event.height);
   int x = 0;
   Point size = getSize();
   Image image = row.getImage(columnIndex);
   if (image != null) {
     Rectangle imageSize = image.getBounds();
     int imageY = (size.y - imageSize.height) / 2;
     gc.drawImage(image, x, imageY);
     x += imageSize.width;
   }
   String text = row.getText(columnIndex);
   if (text.length() > 0) {
     Rectangle bounds = row.getBounds(columnIndex);
     Point extent = gc.stringExtent(text);
     // Temporary code - need a better way to determine table trim
     String platform = SWT.getPlatform();
     if ("win32".equals(platform)) { // $NON-NLS-1$
       if (table.getColumnCount() == 0 || columnIndex == 0) {
         x += 2;
       } else {
         int alignmnent = column.getAlignment();
         switch (alignmnent) {
           case SWT.LEFT:
             x += 6;
             break;
           case SWT.RIGHT:
             x = bounds.width - extent.x - 6;
             break;
           case SWT.CENTER:
             x += (bounds.width - x - extent.x) / 2;
             break;
         }
       }
     } else {
       if (table.getColumnCount() == 0) {
         x += 5;
       } else {
         int alignmnent = column.getAlignment();
         switch (alignmnent) {
           case SWT.LEFT:
             x += 5;
             break;
           case SWT.RIGHT:
             x = bounds.width - extent.x - 2;
             break;
           case SWT.CENTER:
             x += (bounds.width - x - extent.x) / 2 + 2;
             break;
         }
       }
     }
     int textY = (size.y - extent.y) / 2;
     gc.drawString(text, x, textY);
   }
   if (isFocusControl()) {
     Display display = getDisplay();
     gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
     gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
     gc.drawFocus(0, 0, size.x, size.y);
   }
 }
Ejemplo n.º 18
0
  private void openAddressBook() {
    FileDialog fileDialog = new FileDialog(shell, SWT.OPEN);

    fileDialog.setFilterExtensions(new String[] {"*.adr;", "*.*"});
    fileDialog.setFilterNames(
        new String[] {
          resAddressBook.getString("Book_filter_name") + " (*.adr)",
          resAddressBook.getString("All_filter_name") + " (*.*)"
        });
    String name = fileDialog.open();

    if (name == null) return;
    File file = new File(name);
    if (!file.exists()) {
      displayError(
          resAddressBook.getString("File")
              + file.getName()
              + " "
              + resAddressBook.getString("Does_not_exist"));
      return;
    }

    Cursor waitCursor = shell.getDisplay().getSystemCursor(SWT.CURSOR_WAIT);
    shell.setCursor(waitCursor);

    FileReader fileReader = null;
    BufferedReader bufferedReader = null;
    String[] data = new String[0];
    try {
      fileReader = new FileReader(file.getAbsolutePath());
      bufferedReader = new BufferedReader(fileReader);
      String nextLine = bufferedReader.readLine();
      while (nextLine != null) {
        String[] newData = new String[data.length + 1];
        System.arraycopy(data, 0, newData, 0, data.length);
        newData[data.length] = nextLine;
        data = newData;
        nextLine = bufferedReader.readLine();
      }
    } catch (FileNotFoundException e) {
      displayError(resAddressBook.getString("File_not_found") + "\n" + file.getName());
      return;
    } catch (IOException e) {
      displayError(resAddressBook.getString("IO_error_read") + "\n" + file.getName());
      return;
    } finally {

      shell.setCursor(null);

      if (fileReader != null) {
        try {
          fileReader.close();
        } catch (IOException e) {
          displayError(resAddressBook.getString("IO_error_close") + "\n" + file.getName());
          return;
        }
      }
    }

    String[][] tableInfo = new String[data.length][table.getColumnCount()];
    int writeIndex = 0;
    for (int i = 0; i < data.length; i++) {
      String[] line = decodeLine(data[i]);
      if (line != null) tableInfo[writeIndex++] = line;
    }
    if (writeIndex != data.length) {
      String[][] result = new String[writeIndex][table.getColumnCount()];
      System.arraycopy(tableInfo, 0, result, 0, writeIndex);
      tableInfo = result;
    }
    Arrays.sort(tableInfo, new RowComparator(0));

    for (int i = 0; i < tableInfo.length; i++) {
      TableItem item = new TableItem(table, SWT.NONE);
      item.setText(tableInfo[i]);
    }
    shell.setText(resAddressBook.getString("Title_bar") + fileDialog.getFileName());
    isModified = false;
    this.file = file;
  }
  private void openFile(String fileName, Table table) {
    String outStr;
    try {

      CSVReader reader = new CSVReader(new FileReader(fileName), ',', '"');
      String[] strLineArr;

      // Open the file that is the first
      // command line parameter
      FileInputStream fstream = new FileInputStream(fileName);
      // Get the object of DataInputStream
      DataInputStream in = new DataInputStream(fstream);
      BufferedReader br = new BufferedReader(new InputStreamReader(in));
      String strLine;

      table.clearAll();
      table.removeAll();
      table.redraw();

      int length = 0;
      boolean first = true;
      // Read File Line By Line
      while ((strLineArr = reader.readNext()) != null) {
        // while ((strLine = br.readLine()) != null)   {
        // Print the content on the console
        // outStr = strLine;
        TableItem item = null;

        if (first) {
          length = strLineArr.length;
        } else {
          item = new TableItem(table, SWT.NONE);
        }

        int thisLen = strLineArr.length;
        if (thisLen <= length) {
          // String[] line = new String[length];
          for (int i = 0; i < thisLen; i++) {
            // line[i] = st.nextToken();
            // item.setText (i, st.nextToken());
            if (first) {
              TableColumn column = new TableColumn(table, SWT.NONE);
              column.setText(strLineArr[i]);
            } else {

              // System.out.println("-- "+i+" -- " + strLineArr[i]);
              item.setText(i, strLineArr[i]);
            }
          }
        }
        first = false;
      }

      // System.out.println("Finisehd file");

      for (int i = 0; i < length; i++) {
        table.getColumn(i).pack();
      }
      // System.out.println("finished packing");
      // Close the input stream
      in.close();
    } catch (Exception e) { // Catch exception if any
      System.err.println("Error: " + e.getMessage());
      e.printStackTrace();
    }
  }