Java JFileChooser correctSelectedFileExtension(JFileChooser chooser)

Description

correct Selected File Extension

License

Open Source License

Declaration

public static File correctSelectedFileExtension(JFileChooser chooser) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Breakout Cave Survey Visualizer/*from w ww . j a v a2  s.  com*/
 *
 * Copyright (C) 2014 James Edwards
 *
 * jedwards8 at fastmail dot fm
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *******************************************************************************/

import java.io.File;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileNameExtensionFilter;

public class Main {
    public static File correctSelectedFileExtension(JFileChooser chooser) {
        File file = chooser.getSelectedFile();
        if (file == null) {
            return null;
        }
        String name = file.getName();
        String newName = name;
        if (name.matches("\"[^\"]+\"")) {
            newName = name.substring(1, name.length() - 1);
        } else if (chooser.getFileFilter() instanceof FileNameExtensionFilter) {
            String ext = ((FileNameExtensionFilter) chooser.getFileFilter())
                    .getExtensions()[0];
            if (!name.endsWith("." + ext)) {
                newName = name + "." + ext;
            }
        }
        if (!newName.equals(name)) {
            File parent = file.getParentFile();
            if (parent != null) {
                file = new File(parent, newName);
            } else {
                file = new File(newName);
            }
        }

        return file;
    }
}

Related

1. chooseSaveFile(String dir, String initialFile, String fileNameExtension, Component parent)
2. choseFile(File selectedFile, String startDir, final String description, final String extension, Component parent, boolean addExtension, boolean forLoad)
3. cleanFileSelector(JFileChooser filterUpdates)
4. cleanFileSelector(JFileChooser filterUpdates)
5. configureFileChooser(JFileChooser fchooser, boolean directoryOnly, File selectedFile)
6. createChooser(String lastPath, final boolean checkOverrideFile)
7. createFileChooser(File presetFile, final String... postfixes)
8. createFileChooser(String initDir)
9. createFileChooser(String title, File dir, String filter)