public function getText($sTextIdent)
    {
        if ($this->_aLangData === null) {
            $this->_aLangData = [];
            $sLangFilePath = getShopBasePath() . EditionPathProvider::SETUP_DIRECTORY . '/' . ucfirst($this->getLanguage()) . '/lang.php';
            if (file_exists($sLangFilePath) && is_readable($sLangFilePath)) {
                $aLang = [];
                include $sLangFilePath;
                $this->_aLangData = array_merge($aLang, $this->getAdditionalMessages());
            }
        }

        return isset($this->_aLangData[$sTextIdent]) ? $this->_aLangData[$sTextIdent] : null;
    }