source: main/trunk/greenstone3/src/java/org/greenstone/gsdl3/util/UTF8Control.java@ 36067

/*
 *    UTF8Control.java
 *    Copyright (C) 2005 New Zealand Digital Library, http://www.nzdl.org
 *
 *    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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

// Based on: https://stackoverflow.com/questions/4659929/how-to-use-utf-8-in-resource-properties-with-resourcebundle

package org.greenstone.gsdl3.util;

import java.util.ResourceBundle;
import java.util.ResourceBundle.Control;
import java.util.Locale;
import java.util.Enumeration;
import java.util.PropertyResourceBundle;

import java.io.*;
import java.net.*;

import org.apache.log4j.*;

public class UTF8Control extends Control
{
    static Logger logger = Logger.getLogger(org.greenstone.gsdl3.util.UTF8Control.class.getName());

    public ResourceBundle newBundle
    (String baseName, Locale locale, String format, ClassLoader loader, boolean reload)
    throws IllegalAccessException, InstantiationException, IOException
    {
    // The below is a copy of the default implementation.
    String bundleName = toBundleName(baseName, locale);
    String resourceName = toResourceName(bundleName, "properties");
    ResourceBundle bundle = null;
    InputStream stream = null;
    if (reload) {
        URL url = loader.getResource(resourceName);
        if (url != null) {
        URLConnection connection = url.openConnection();
        if (connection != null) {
            connection.setUseCaches(false);
            stream = connection.getInputStream();
        }
        }
    } else {
        stream = loader.getResourceAsStream(resourceName);
    }
    if (stream != null) {
        try {
        // Only this line is changed to make it to read properties files as UTF-8.
        bundle = new PropertyResourceBundle(new InputStreamReader(stream, "UTF-8"));
        } finally {
        stream.close();
        }
    }
    return bundle;
    }
}