public static function getRequestAdapter()
    {
        if (!self::$_requestAdapter) {
            if (class_exists('Zend_Controller_Front', false)) {
                self::$_requestAdapter = new CheddarGetter_Http_ZendAdapter();
            } else {
                self::$_requestAdapter = new CheddarGetter_Http_NativeAdapter();
            }
        }

        return self::$_requestAdapter;
    }