ja.lingo.application.gui.main.export.ExportGui.java Source code

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Here is the source code for ja.lingo.application.gui.main.export.ExportGui.java

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/*
 * JaLingo, http://jalingo.sourceforge.net/
 *
 * Copyright (c) 2002-2006 Oleksandr Shyshko
 *
 * 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
 */

package ja.lingo.application.gui.main.export;

import ja.centre.gui.resources.Resources;
import ja.centre.util.io.Files;
import ja.lingo.application.model.Model;
import ja.lingo.application.model.ModelAdapter;
import ja.lingo.application.util.messages.Messages;
import ja.lingo.application.util.misc.Threads;
import ja.lingo.application.util.progress.ITitledMonitor;
import ja.lingo.application.util.progress.ProgressUtil;
import ja.lingo.application.util.progress.engine.Monitors;
import ja.lingo.application.util.JaFilter;
import ja.lingo.engine.IArticleList;
import ja.lingo.engine.IEngine;
import ja.lingo.engine.beans.IArticle;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.swing.*;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;

public class ExportGui {
    private static final Log LOG = LogFactory.getLog(ExportGui.class);
    private static final Resources RESOURCES = Resources.forProperties(ExportGui.class);

    public static final JaFilter HTML = new JaFilter(RESOURCES.text("htmlFiles"), ".html", ".htm");

    public static final JaFilter HTML_TARGZ = new JaFilter(RESOURCES.text("tarGzFiles"), ".tar.gz", ".tgz");

    private IEngine engine;

    private JFrame parentFrame;
    private JFileChooser chooser;

    public ExportGui(IEngine engine, Model model, JFrame parentFrame) {
        this.engine = engine;
        this.parentFrame = parentFrame;

        chooser = new JFileChooser(".");

        model.addApplicationModelListener(new ModelAdapter() {
            public void export(IArticle article) {
                saveAs(article);
            }

            public void export(IArticleList articleList) {
                showAll(articleList);
            }
        });
    }

    private void saveAs(IArticle article) {
        String fileName = askFile(HTML, article.getTitle(), RESOURCES.text("saveAs"));

        if (fileName != null) {
            try {
                engine.getExporter().toFile(fileName, article);
            } catch (Throwable t) {
                showExportError(t);
            }
        }
    }

    private void showAll(final IArticleList articleList) {
        String suggestedFileName = articleList.size() + " articles on "
                + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());

        final String fileName = askFile(HTML_TARGZ, suggestedFileName, RESOURCES.text("saveAll"));

        if (fileName == null) {
            return;
        }

        final ITitledMonitor controller = ProgressUtil.start(parentFrame);

        Threads.startInBackground(new Runnable() {
            public void run() {
                try {
                    engine.getExporter().toFile(fileName, articleList, Monitors.export(controller));
                } catch (Throwable t) {
                    showExportError(t);
                } finally {
                    ProgressUtil.stop(parentFrame);
                }
            }
        });
    }

    private String askFile(JaFilter filter, String fileName, String dialogTitle) {
        chooser.setDialogTitle(dialogTitle);
        chooser.resetChoosableFileFilters();
        chooser.setFileFilter(filter);
        chooser.setSelectedFile(
                new File(filter.appendExtensionIfNeeded(Files.removeUnacceptableSymbols(fileName))));

        if (chooser.showSaveDialog(parentFrame) == JFileChooser.APPROVE_OPTION) {
            return filter.appendExtensionIfNeeded(chooser.getSelectedFile().getAbsolutePath());
        }
        return null;
    }

    private void showExportError(Throwable t) {
        LOG.warn("Exception occured during export to HTML", t);
        Messages.error(parentFrame, t.getMessage(), RESOURCES.text("exportError"));
    }
}