session.py 文件源码

def _unwrap_plugin_exceptions(self, func, *args, **kwargs):
        """Parse exception details."""
        try:
            return func(*args, **kwargs)
        except XenAPI.Failure as exc:
            LOG.debug("Got exception: %s", exc)
            if (len(exc.details) == 4 and
                exc.details[0] == 'XENAPI_PLUGIN_EXCEPTION' and
                    exc.details[2] == 'Failure'):
                params = None
                try:
                    params = ast.literal_eval(exc.details[3])
                except Exception:
                    raise exc
                raise XenAPI.Failure(params)
            else:
                raise
        except xmlrpclib.ProtocolError as exc:
            LOG.debug("Got exception: %s", exc)
            raise