51 lines
1.8 KiB
Python
51 lines
1.8 KiB
Python
# -*- 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 taskflow.engines.action_engine import executor
|
|
from taskflow.utils import reflection
|
|
|
|
|
|
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 _get_task(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 some other arguments.
|
|
return self._task_cls(name=name)
|
|
|
|
def execute(self, task_name, **kwargs):
|
|
task, event, result = self._executor.execute_task(
|
|
self._get_task(task_name), **kwargs).result()
|
|
return result
|
|
|
|
def revert(self, task_name, **kwargs):
|
|
task, event, result = self._executor.revert_task(
|
|
self._get_task(task_name), **kwargs).result()
|
|
return result
|