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# -*- coding: utf-8 -*-
# Copyright (C) 2014 Yahoo! Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_utils import reflection
from taskflow.engines.action_engine import executor
class Endpoint(object):
"""Represents a single task with execute/revert methods."""
def __init__(self, task_cls):
self._task_cls = task_cls
self._task_cls_name = reflection.get_class_name(task_cls)
self._executor = executor.SerialTaskExecutor()
def __str__(self):
return self._task_cls_name
@property
def name(self):
return self._task_cls_name
def generate(self, name=None):
# NOTE(skudriashev): Note that task is created here with the `name`
# argument passed to its constructor. This will be a problem when
# task's constructor requires any other arguments.
return self._task_cls(name=name)
def execute(self, task, **kwargs):
event, result = self._executor.execute_task(task, **kwargs).result()
return result
def revert(self, task, **kwargs):
event, result = self._executor.revert_task(task, **kwargs).result()
return result
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