reportconvertergui.java

来自「swing编写的库存管理程序。毕业设计类」· Java 代码 · 共 637 行 · 第 1/2 页

    contentPane.add(selectSourceButton, gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 0;
    gbc.gridy = 1;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.insets = new Insets(3, 1, 1, 1);
    contentPane.add(new JLabel(getResources().getString("convertdialog.targetFile")), gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 1;
    gbc.gridy = 1;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.weightx = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.insets = new Insets(3, 1, 1, 1);
    gbc.ipadx = 120;
    contentPane.add(targetField, gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 2;
    gbc.gridy = 1;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.insets = new Insets(3, 1, 1, 1);
    gbc.fill = GridBagConstraints.HORIZONTAL;
    contentPane.add(selectTargetButton, gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 0;
    gbc.gridy = 2;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.insets = new Insets(3, 1, 1, 1);
    contentPane.add(new JLabel(getResources().getString("convertdialog.encoding")), gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 1;
    gbc.gridy = 2;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.weightx = 1;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    gbc.insets = new Insets(3, 1, 1, 1);
    gbc.ipadx = 120;
    contentPane.add(new JComboBox(encodingModel), gbc);

    gbc = new GridBagConstraints();
    gbc.gridx = 2;
    gbc.gridy = 2;
    gbc.anchor = GridBagConstraints.WEST;
    gbc.insets = new Insets(3, 1, 1, 1);
    gbc.fill = GridBagConstraints.HORIZONTAL;
    contentPane.add(convertFilesButton, gbc);

    return contentPane;
  }
  /**
   * Starting point for the utility application.
   *
   * @param args  ignored.
   */
  public static void main(final String[] args)
  {
    final ReportConverterGUI gui = new ReportConverterGUI();
    gui.addWindowListener(new WindowAdapter()
    {
      public void windowClosing(final WindowEvent e)
      {
        System.exit(0);
      }
    });
    gui.pack();
    gui.setVisible(true);
  }

  /**
   * Validates the contents of the dialogs input fields. If the selected file exists, it is also
   * checked for validity.
   *
   * @param filename  the file name.
   *
   * @return true, if the input is valid, false otherwise
   */
  public boolean performTargetValidate(final String filename)
  {
    if (filename.trim().length() == 0)
    {
      JOptionPane.showMessageDialog(this,
          getResources().getString("convertdialog.targetIsEmpty"),
          getResources().getString("convertdialog.errorTitle"),
          JOptionPane.ERROR_MESSAGE);
      return false;
    }
    final File f = new File(filename);
    if (f.exists())
    {
      if (f.isFile() == false)
      {
        JOptionPane.showMessageDialog(this,
            getResources().getString("convertdialog.targetIsNoFile"),
            getResources().getString("convertdialog.errorTitle"),
            JOptionPane.ERROR_MESSAGE);
        return false;
      }
      if (f.canWrite() == false)
      {
        JOptionPane.showMessageDialog(this,
            getResources().getString("convertdialog.targetIsNotWritable"),
            getResources().getString("convertdialog.errorTitle"),
            JOptionPane.ERROR_MESSAGE);
        return false;
      }
      final String key1 = "convertdialog.targetOverwriteConfirmation";
      final String key2 = "convertdialog.targetOverwriteTitle";
      if (JOptionPane.showConfirmDialog(this,
          MessageFormat.format(getResources().getString(key1),
              new Object[]{filename}
          ),
          getResources().getString(key2),
          JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE)
          == JOptionPane.NO_OPTION)
      {
        return false;
      }
    }

    return true;
  }

  /**
   * Validates the contents of the dialogs input fields. If the selected file exists, it is also
   * checked for validity.
   *
   * @param filename  the file name.
   *
   * @return true, if the input is valid, false otherwise
   */
  public boolean performSourceValidate(final String filename)
  {
    if (filename.trim().length() == 0)
    {
      JOptionPane.showMessageDialog(this,
          getResources().getString("convertdialog.sourceIsEmpty"),
          getResources().getString("convertdialog.errorTitle"),
          JOptionPane.ERROR_MESSAGE);
      return false;
    }
    final File f = new File(filename);
    if (f.exists() == false)
    {
      return false;
    }

    if (f.isFile() == false)
    {
      JOptionPane.showMessageDialog(this,
          getResources().getString("convertdialog.sourceIsNoFile"),
          getResources().getString("convertdialog.errorTitle"),
          JOptionPane.ERROR_MESSAGE);
      return false;
    }
    if (f.canRead() == false)
    {
      JOptionPane.showMessageDialog(this,
          getResources().getString("convertdialog.sourceIsNotReadable"),
          getResources().getString("convertdialog.errorTitle"),
          JOptionPane.ERROR_MESSAGE);
      return false;
    }
    return true;
  }

  /**
   * Retrieves the resources for the frame. If the resources are not initialized,
   * they get loaded on the first call to this method.
   *
   * @return The resources.
   */
  protected ResourceBundle getResources()
  {
    if (resources == null)
    {
      resources = ResourceBundle.getBundle(BASE_RESOURCE_CLASS);
    }
    return resources;
  }

  /**
   * Sets the source file.
   *
   * @param file  the file name.
   */
  protected void setSourceFile(final String file)
  {
    sourceField.setText(file);
  }

  /**
   * Sets the target file.
   *
   * @param file  the file name.
   */
  protected void setTargetFile(final String file)
  {
    targetField.setText(file);
  }

  /**
   * Returns the source file name.
   *
   * @return The name.
   */
  protected String getSourceFile()
  {
    return sourceField.getText();
  }

  /**
   * Returns the name of the target file.
   *
   * @return The name.
   */
  protected String getTargetFile()
  {
    return targetField.getText();
  }

  /**
   * Performs the conversion, returning <code>true</code> if the conversion is successful, and
   * <code>false</code> otherwise.
   *
   * @return A boolean.
   */
  public boolean convert()
  {

    if (performSourceValidate(getSourceFile()) == false)
    {
      setStatusText("Validating the source file failed. Please check your inputs.");
      return false;
    }
    if (performTargetValidate(getTargetFile()) == false)
    {
      setStatusText("Validating the target file failed. Please check your inputs.");
      return false;
    }

    try
    {
      final ConverterParserFrontend frontend = new ConverterParserFrontend();
      final File sourceFile = new File (getSourceFile());
      final File targetFile = new File (getTargetFile());
      final String encoding = encodingModel.getSelectedEncoding();
      final JFreeReport report = (JFreeReport)
          frontend.parse(sourceFile.toURL(), sourceFile.toURL());

      final DefaultConfiguration config = new DefaultConfiguration();
      config.setProperty(Parser.CONTENTBASE_KEY, targetFile.toURL().toExternalForm());

      // adding all factories will make sure that all stylekeys are found,
      // even if the report was parsed from a simple report definition  
      final ReportWriter writer = new ReportWriter(report, encoding, config);
      writer.addClassFactoryFactory(new URLClassFactory());
      writer.addClassFactoryFactory(new DefaultClassFactory());
      writer.addClassFactoryFactory(new BandLayoutClassFactory());
      writer.addClassFactoryFactory(new ArrayClassFactory());

      writer.addStyleKeyFactory(new DefaultStyleKeyFactory());
      writer.addStyleKeyFactory(new PageableLayoutStyleKeyFactory());
      writer.addTemplateCollection(new DefaultTemplateCollection());
      writer.addElementFactory(new DefaultElementFactory());
      writer.addDataSourceFactory(new DefaultDataSourceFactory());

      final OutputStream base = new FileOutputStream(targetFile);
      final Writer w = new BufferedWriter(new OutputStreamWriter(base, encoding));
      writer.write(w);
      w.close();
      setStatusText("Conversion done.");
      return true;
    }
    catch (Exception e)
    {
      Log.warn ("Failed to convert the report. ", e);
      setStatusText("Failed to convert the report:" + e.getMessage());
      return false;
    }
  }
  /**
   * Selects a file to use.
   *
   * @param filename  the current selection.
   * @param appendExt  append an extension?
   *
   * @return The file name.
   */
  protected String performSelectFile(final String filename, final boolean appendExt)
  {
    final File file = new File(filename);
    fileChooser.setCurrentDirectory(file);
    fileChooser.setSelectedFile(file);
    final int option = fileChooser.showSaveDialog(this);
    if (option == JFileChooser.APPROVE_OPTION)
    {
      final File selFile = fileChooser.getSelectedFile();
      String selFileName = selFile.getAbsolutePath();

      if (appendExt)
      {
        if ((StringUtil.endsWithIgnoreCase(selFileName, ".xml") == false))
        {
          selFileName = selFileName + ".xml";
        }
      }
      return selFileName;
    }
    return filename;
  }

}