public function getAll()
    {
        if ($this->_config !== null) {
            return $this->_config;
        }
        try {
            $this->_config = $this->cached;
        } catch (Exception $exc) {
            Log::warning($exc->getMessage(), null, __METHOD__);
            $this->_config = $this->stored;
        }
        return $this->_config;
    }