60 lines
2.0 KiB
Python
60 lines
2.0 KiB
Python
#
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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 copy
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import six
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from heat.engine import function
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class OutputDefinition(object):
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"""A definition of a stack output, independent of any template format."""
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def __init__(self, name, value, description=None):
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self.name = name
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self._value = value
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self._resolved_value = None
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self._description = description
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def validate(self, path=''):
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"""Validate the output value without resolving it."""
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function.validate(self._value, path)
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def dep_attrs(self, resource_name):
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"""Iterate over attributes of a given resource that this references.
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Return an iterator over dependent attributes for specified
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resource_name in the output's value field.
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"""
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return function.dep_attrs(self._value, resource_name)
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def get_value(self):
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"""Resolve the value of the output."""
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if self._resolved_value is None:
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self._resolved_value = function.resolve(self._value)
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return self._resolved_value
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def description(self):
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"""Return a description of the output."""
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if self._description is None:
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return 'No description given'
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return six.text_type(self._description)
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def render_hot(self):
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def items():
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if self._description is not None:
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yield 'description', self._description
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yield 'value', copy.deepcopy(self._value)
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return dict(items())
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