api.py 文件源码

def update_capsule(self, context, capsule_id, values):
        if 'uuid' in values:
            msg = _("Cannot overwrite UUID for an existing Capsule.")
            raise exception.InvalidParameterValue(err=msg)

        try:
            target_uuid = self.get_capsule_by_uuid(
                context, capsule_id).uuid
            target = self.client.read('/capsules/' + target_uuid)
            target_value = json.loads(target.value)
            target_value.update(values)
            target.value = json.dump_as_bytes(target_value)
            self.client.update(target)
        except etcd.EtcdKeyNotFound:
            raise exception.CapsuleNotFound(capsule=capsule_id)
        except Exception as e:
            LOG.error('Error occurred while updating capsule: %s',
                      six.text_type(e))
            raise

        return translate_etcd_result(target, 'capsule')