/*
 * $Header: /cvsroot/mvnforum/myvietnam/src/net/myvietnam/mvncore/i18n/CacheResourceBundle.java,v 1.5 2005/01/18 12:16:42 minhnn Exp $
 * $Author: minhnn $
 * $Revision: 1.5 $
 * $Date: 2005/01/18 12:16:42 $
 *
 * ====================================================================
 *
 * Copyright (C) 2002-2005 by MyVietnam.net
 *
 * 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 any later version.
 *
 * All copyright notices regarding MyVietnam and MyVietnam CoreLib
 * MUST remain intact in the scripts and source code.
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Correspondence and Marketing Questions can be sent to:
 * info@MyVietnam.net
 *
 * @author: Minh Nguyen  minhnn@MyVietnam.net
 */
package net.myvietnam.mvncore.i18n;

import java.util.*;
import java.text.MessageFormat;

public class CacheResourceBundle {

    private String bundleName = null;

    private Hashtable cacheResourceBundle = new Hashtable();

    public CacheResourceBundle(String bundleName) {
        this.bundleName = bundleName;
    }

    /**
     * Get the ResourceBundle from a locale, if locale is null, then get from locale English
     * @param locale Locale
     * @return ResourceBundle
     */
    public ResourceBundle getResourceBundle(Locale locale) {
        if (locale == null) {
            locale = Locale.ENGLISH;
        }
        ResourceBundle resourceBundle = (ResourceBundle)cacheResourceBundle.get(locale);
        if (resourceBundle == null) {
            resourceBundle = ResourceBundle.getBundle(bundleName, locale);
            cacheResourceBundle.put(locale, resourceBundle);
        }
        return resourceBundle;
    }

    public String getString(Locale locale, String key) {
        ResourceBundle resourceBundle = getResourceBundle(locale);
        try {
            return resourceBundle.getString(key);
        } catch (Exception ex) {
            return "[[" + key + "]]";
        }
    }

    public String getString(Locale locale, String key, Object[] args) {
        ResourceBundle resourceBundle = getResourceBundle(locale);
        try {
            String message = resourceBundle.getString(key);

            MessageFormat formatter = new MessageFormat(message);
            if (locale != null) {
                formatter.setLocale(locale);
            }
            message = formatter.format(args);
            return message;
        } catch (Exception ex) {
            return "[[[" + key + "]]]";
        }
    }
}