73 lines
2.1 KiB
Python
73 lines
2.1 KiB
Python
# -*- coding: utf-8 -*-
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2012-2013 Yahoo! Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import os
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import sys
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logging.basicConfig(level=logging.ERROR)
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top_dir = os.path.abspath(os.path.join(os.path.dirname(__file__),
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os.pardir,
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os.pardir))
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sys.path.insert(0, top_dir)
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import taskflow.engines
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from taskflow.patterns import linear_flow as lf
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from taskflow import task
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class CallJim(task.Task):
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def execute(self, jim_number, *args, **kwargs):
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print("Calling jim %s." % jim_number)
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def revert(self, jim_number, *args, **kwargs):
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print("Calling %s and apologizing." % jim_number)
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class CallJoe(task.Task):
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def execute(self, joe_number, *args, **kwargs):
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print("Calling joe %s." % joe_number)
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def revert(self, joe_number, *args, **kwargs):
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print("Calling %s and apologizing." % joe_number)
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class CallSuzzie(task.Task):
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def execute(self, suzzie_number, *args, **kwargs):
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raise IOError("Suzzie not home right now.")
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def revert(self, suzzie_number, *args, **kwargs):
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# TODO(imelnikov): this method should not be requred
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pass
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flow = lf.Flow('simple-linear').add(
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CallJim(),
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CallJoe(),
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CallSuzzie()
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)
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try:
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taskflow.engines.run(flow, store=dict(joe_number=444,
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jim_number=555,
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suzzie_number=666))
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except Exception as e:
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print("Flow failed: %r" % e)
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