def _pathresource(self, rscpath):
raise NotImplementedError()<EOL>
Method to override in order to get specific conf resource from a
        resource path.

        :param str rscpath: resource path.
        :param Logger logger: logger to use.
        :param bool error: if True (False by default), raise a ConfDriver Error.
        :param bool force: create resource even if rscpath does not exist.
        :return: specific configuration resource.