content: /*
  * Copyright (c) 1997 - 2016
  * Actelion Pharmaceuticals Ltd.
  * Gewerbestrasse 16
  * CH-4123 Allschwil, Switzerland
  *
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright notice, this
  *    list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. Neither the name of the the copyright holder nor the
  *    names of its contributors may be used to endorse or promote products
  *    derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
  
  package com.actelion.research.gui;
  
  import javax.swing.*;
  import java.io.File;
  
  public class JFileChooserOverwrite extends JFileChooser {
  	private static final long serialVersionUID = 20150101L;
  
  	private File	mFile;
  	private String[] mExtensions = null;
  
  	public JFileChooserOverwrite() {
  //		super(System.getProperty("user.dir"));
  		}
  
  	public void setExtensions(String[] extensions) {
  		mExtensions = extensions;
  		}
  
  	public File getFile() {
  		return mFile;
  		}
  
  	public void approveSelection() {
  		if (getSelectedFile() != null) {
  			String filename = getSelectedFile().getPath();
  			if (mExtensions != null) {
  				int dotIndex = filename.lastIndexOf('.');
  				int slashIndex = filename.lastIndexOf(File.separator);
  				if (dotIndex == -1
  				 || dotIndex < slashIndex) {
  					filename = filename.concat(mExtensions[0]);
  					}
  				else {
  					boolean found = false;
  					for (String extension:mExtensions)
  				        if (filename.substring(dotIndex).equalsIgnoreCase(extension))
  				        	found = true;
  
  				    if (!found) {
  						JOptionPane.showMessageDialog(this, "Incompatible file name extension.");
  					    return;
  						}
  					}
  				}
  
  			mFile = new File(filename);
  			if (mFile != null) {
  				if (mFile.exists()) {
  					int answer = JOptionPane.showConfirmDialog(this,
  						"This file already exists. Do you want to replace it?", "Warning",
  						JOptionPane.OK_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE);
  
  					if (answer == JOptionPane.OK_OPTION)
  						super.approveSelection();
  					}
  				else
  		        	super.approveSelection();
  				}
  			}
  		}
  	}
  