/*
 * Copyright (C) 2004-2015 L2J Server
 * 
 * This file is part of L2J Server.
 * 
 * L2J Server 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 3 of the License, or
 * (at your option) any later version.
 * 
 * L2J Server 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, see <http://www.gnu.org/licenses/>.
 */
package com.l2jserver.tools.i18n;

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Locale;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;
import java.util.ResourceBundle.Control;

/**
 * @author KenM
 */
public class LanguageControl extends Control
{
	public static final String LANGUAGES_DIRECTORY = "../languages/";
	
	public static final LanguageControl INSTANCE = new LanguageControl();
	
	/**
	 * prevent instancing, allows sub-classing
	 */
	protected LanguageControl()
	{
		
	}
	
	@Override
	public ResourceBundle newBundle(String baseName, Locale locale, String format, ClassLoader loader, boolean reload) throws IOException
	{
		if ((baseName == null) || (locale == null) || (format == null) || (loader == null))
		{
			throw new NullPointerException();
		}
		ResourceBundle bundle = null;
		if (format.equals("java.properties"))
		{
			format = "properties";
			String bundleName = toBundleName(baseName, locale);
			String resourceName = LANGUAGES_DIRECTORY + toResourceName(bundleName, format);
			
			try (FileInputStream fis = new FileInputStream(resourceName);
				BufferedInputStream bis = new BufferedInputStream(fis))
			{
				bundle = new PropertyResourceBundle(bis);
			}
		}
		return bundle;
	}
}