calendarexportplugin.exporter.CalExporter.java Source code

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Here is the source code for calendarexportplugin.exporter.CalExporter.java

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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * VCS information:
 *     $Date: 2005-12-26 21:46:18 +0100 (Mo, 26 Dez 2005) $
 *   $Author: troggan $
 * $Revision: 1764 $
 */
package calendarexportplugin.exporter;

import java.io.File;

import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

import org.apache.commons.lang.StringUtils;

import util.program.AbstractPluginProgramFormating;
import util.ui.ExtensionFileFilter;
import util.ui.Localizer;
import calendarexportplugin.CalendarExportPlugin;
import calendarexportplugin.CalendarExportSettings;
import calendarexportplugin.utils.CalendarToolbox;
import devplugin.Program;

public abstract class CalExporter extends AbstractExporter {

    /** Translator */
    private static final Localizer mLocalizer = Localizer.getLocalizerFor(CalExporter.class);

    /** Path for File */
    private String mSavePath;

    private String mExtension;
    private String mExtensionFilter;

    public CalExporter(String extension, String extensionFilter) {
        mExtension = extension;
        mExtensionFilter = extensionFilter;
    }

    public boolean exportPrograms(Program[] programs, CalendarExportSettings settings,
            AbstractPluginProgramFormating formatting) {
        mSavePath = getSavePath(settings);

        File file = chooseFile(programs);

        if (file == null) {
            return false;
        }

        if (file.exists()) {
            int result = JOptionPane.showConfirmDialog(CalendarExportPlugin.getInstance().getBestParentFrame(),
                    mLocalizer.msg("overwriteMessage", "The File \n{0}\nalready exists. Overwrite it?",
                            file.getAbsolutePath()),
                    mLocalizer.msg("overwriteTitle", "Overwrite?"), JOptionPane.YES_NO_OPTION);
            if (result != JOptionPane.YES_OPTION) {
                return false;
            }
        }

        mSavePath = file.getAbsolutePath();

        setSavePath(settings, mSavePath);
        export(file, programs, settings, formatting);

        return true;
    }

    /**
     * Shows a file chooser for calendar Files.
     *
     * @return selected File
     * @param programs
     *          programs that are exported
     */
    private File chooseFile(Program[] programs) {
        JFileChooser select = new JFileChooser();

        ExtensionFileFilter vCal = new ExtensionFileFilter(mExtension, mExtensionFilter);
        select.addChoosableFileFilter(vCal);
        String ext = "." + mExtension;

        if (mSavePath != null) {
            select.setSelectedFile(new File(mSavePath));
            select.setFileFilter(vCal);
        }

        // check if all programs have same title. if so, use as filename
        String fileName = programs[0].getTitle();
        for (int i = 1; i < programs.length; i++) {
            if (!programs[i].getTitle().equals(fileName)) {
                fileName = "";
            }
        }

        fileName = CalendarToolbox.cleanFilename(fileName);

        if (StringUtils.isNotEmpty(fileName)) {
            if (mSavePath == null) {
                mSavePath = "";
            }
            select.setSelectedFile(new File((new File(mSavePath).getParent()) + File.separator + fileName + ext));
        }

        if (select.showSaveDialog(
                CalendarExportPlugin.getInstance().getBestParentFrame()) == JFileChooser.APPROVE_OPTION) {

            String filename = select.getSelectedFile().getAbsolutePath();

            if (!filename.toLowerCase().endsWith(ext)) {
                if (filename.endsWith(".")) {
                    filename = filename.substring(0, filename.length() - 1);
                }
                filename = filename + ext;
            }

            return new File(filename);
        }

        return null;
    }

    protected abstract String getSavePath(CalendarExportSettings settings);

    protected abstract void setSavePath(CalendarExportSettings settings, String path);

    protected abstract void export(File file, Program[] programs, CalendarExportSettings settings,
            AbstractPluginProgramFormating formatting);

}