9d06a61fe4
* Moved DB related lookup functions from workflow/utils to a separate module lookup_utils * Optimized data access pattern where we calculate 'join' states induced by upstream tasks, applied caching for some lookup operations * Added caching in direct workflow specification for inbound and outbound task specs, if workflow size is large calculating them may be expensive * Added an adaptive delay between calls that refresh 'join' task state based on a number of unfulfilled preconditions returned by workflow controller Change-Id: I383fa52f2f05877df7522048020cc7ff280324a2
73 lines
2.1 KiB
Python
73 lines
2.1 KiB
Python
# Copyright 2014 - Mirantis, Inc.
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# Copyright 2015 - StackStorm, Inc.
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# Copyright 2016 - Brocade Communications Systems, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from mistral.utils import serializers
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class Result(object):
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"""Explicit data structure containing a result of task execution."""
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def __init__(self, data=None, error=None, cancel=False):
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self.data = data
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self.error = error
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self.cancel = cancel
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def __repr__(self):
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return 'Result [data=%s, error=%s, cancel=%s]' % (
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repr(self.data), repr(self.error), str(self.cancel)
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)
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def is_cancel(self):
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return self.cancel
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def is_error(self):
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return self.error is not None and not self.is_cancel()
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def is_success(self):
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return not self.is_error() and not self.is_cancel()
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def __eq__(self, other):
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return (
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self.data == other.data and
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self.error == other.error and
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self.cancel == other.cancel
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)
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def __ne__(self, other):
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return not self.__eq__(other)
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def to_dict(self):
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return ({'result': self.data}
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if self.is_success() else {'result': self.error})
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class ResultSerializer(serializers.Serializer):
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@staticmethod
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def serialize(entity):
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return {
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'data': entity.data,
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'error': entity.error,
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'cancel': entity.cancel
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}
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@staticmethod
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def deserialize(entity):
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return Result(
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entity['data'],
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entity['error'],
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entity.get('cancel', False)
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)
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