/**
 * Copyright or © or Copr. Ministère Français chargé de la Culture
 * et de la Communication (2013)
 * <p/>
 * contact.gincoculture_at_gouv.fr
 * <p/>
 * This software is a computer program whose purpose is to provide a thesaurus
 * management solution.
 * <p/>
 * This software is governed by the CeCILL license under French law and
 * abiding by the rules of distribution of free software. You can use,
 * modify and/ or redistribute the software under the terms of the CeCILL
 * license as circulated by CEA, CNRS and INRIA at the following URL
 * "http://www.cecill.info".
 * <p/>
 * As a counterpart to the access to the source code and rights to copy,
 * modify and redistribute granted by the license, users are provided only
 * with a limited warranty and the software's author, the holder of the
 * economic rights, and the successive licensors have only limited liability.
 * <p/>
 * In this respect, the user's attention is drawn to the risks associated
 * with loading, using, modifying and/or developing or reproducing the
 * software by the user in light of its specific status of free software,
 * that may mean that it is complicated to manipulate, and that also
 * therefore means that it is reserved for developers and experienced
 * professionals having in-depth computer knowledge. Users are therefore
 * encouraged to load and test the software's suitability as regards their
 * requirements in conditions enabling the security of their systemsand/or
 * data to be ensured and, more generally, to use and operate it in the
 * same conditions as regards security.
 * <p/>
 * The fact that you are presently reading this means that you have had
 * knowledge of the CeCILL license and that you accept its terms.
 */
package fr.mcc.ginco.utils;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.net.URLConnection;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.Locale;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;
import java.util.ResourceBundle.Control;

public class EncodedControl extends Control {
	private String encoding;

	public EncodedControl(String encoding) {
		this.encoding = encoding;
	}

	@Override
	public ResourceBundle newBundle(String baseName, Locale locale, String format, ClassLoader loader, boolean reload)
			throws IllegalAccessException, InstantiationException, IOException {
		if (!"java.properties".equals(format)) {
			return super.newBundle(baseName, locale, format, loader, reload);
		}
		String bundleName = toBundleName(baseName, locale);
		ResourceBundle bundle = null;
		// code below copied from Sun's/Oracle's code; that's their indentation, not mine ;)
		final String resourceName = toResourceName(bundleName, "properties");
		final ClassLoader classLoader = loader;
		final boolean reloadFlag = reload;
		InputStream stream = null;
		try {
			stream = AccessController.doPrivileged(
					new PrivilegedExceptionAction<InputStream>() {
						public InputStream run() throws IOException {
							InputStream is = null;
							if (reloadFlag) {
								URL url = classLoader.getResource(resourceName);
								if (url != null) {
									URLConnection connection = url.openConnection();
									if (connection != null) {
										// Disable caches to get fresh data for
										// reloading.
										connection.setUseCaches(false);
										is = connection.getInputStream();
									}
								}
							} else {
								is = classLoader.getResourceAsStream(resourceName);
							}
							return is;
						}
					}
			);
		} catch (PrivilegedActionException e) {
			throw (IOException) e.getException();
		}
		if (stream != null) {
			try {
				Reader reader = new InputStreamReader(stream, encoding);
				bundle = new PropertyResourceBundle(reader);
				// END CHANGE
			} finally {
				stream.close();
			}
		}
		// and to finish it off
		return bundle;
	}
}