deb-murano/murano/dsl/attribute_store.py

59 lines
2.1 KiB
Python

# Copyright (c) 2014 Mirantis, Inc.
#
# 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.
import six
from murano.dsl import dsl_types
class AttributeStore(object):
def __init__(self):
self._attributes = {}
@staticmethod
def _get_attribute_key(tagged_object, owner_type, name):
if isinstance(owner_type, dsl_types.MuranoClassReference):
owner_type = owner_type.murano_class
if isinstance(tagged_object, dsl_types.MuranoObjectInterface):
tagged_object = tagged_object.object
return tagged_object.object_id, owner_type.name, name
def get(self, tagged_object, owner_type, name):
return self._attributes.get(self._get_attribute_key(
tagged_object, owner_type, name))
def set(self, tagged_object, owner_type, name, value):
if isinstance(value, dsl_types.MuranoObjectInterface):
value = value.id
elif isinstance(value, dsl_types.MuranoObject):
value = value.object_id
key = self._get_attribute_key(tagged_object, owner_type, name)
if value is None:
self._attributes.pop(key, None)
else:
self._attributes[key] = value
def serialize(self, known_objects):
return [
[key[0], key[1], key[2], value]
for key, value
in six.iteritems(self._attributes)
if key[0] in known_objects
]
def load(self, data):
for item in data:
if item[3] is not None:
self._attributes[(item[0], item[1], item[2])] = item[3]