class.ilLanguageFactory.php

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<?php
/*
    +-----------------------------------------------------------------------------+
    | ILIAS open source                                                           |
    +-----------------------------------------------------------------------------+
    | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
    |                                                                             |
    | 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
    +-----------------------------------------------------------------------------+
*/

class ilLanguageFactory
{
    private static $languages = array();
    
    public static function _getLanguage($a_lang_key = '')
    {
        global $DIC;
        $lng = $DIC->language();
        
        if (!$a_lang_key) {
            if (is_object($lng)) {
                $a_lang_key = $lng->getDefaultLanguage();
            } else {
                $a_lang_key = 'en';
            }
        }
        if (isset(self::$languages[$a_lang_key])) {
            return self::$languages[$a_lang_key];
        }
        return self::$languages[$a_lang_key] = new ilLanguage($a_lang_key);
    }
    
    public static function _getLanguageOfUser($a_usr_id)
    {
        return self::_getLanguage(ilObjUser::_lookupLanguage($a_usr_id));
    }
}