# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# 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 datetime import datetime
from wsme import types as wsme_types
from glance.common import timeutils
[docs]class WSMEModelTransformer(object):
[docs] def to_dict(self):
# Return the wsme_attributes names:values as a dict
my_dict = {}
for attribute in self._wsme_attributes:
value = getattr(self, attribute.name)
if value is not wsme_types.Unset:
my_dict.update({attribute.name: value})
return my_dict
@classmethod
[docs] def to_wsme_model(model, db_entity, self_link=None, schema=None):
# Return the wsme_attributes names:values as a dict
names = []
for attribute in model._wsme_attributes:
names.append(attribute.name)
values = {}
for name in names:
value = getattr(db_entity, name, None)
if value is not None:
if type(value) == datetime:
iso_datetime_value = timeutils.isotime(value)
values.update({name: iso_datetime_value})
else:
values.update({name: value})
if schema:
values['schema'] = schema
model_object = model(**values)
# 'self' kwarg is used in wsme.types.Base.__init__(self, ..) and
# conflicts during initialization. self_link is a proxy field to self.
if self_link:
model_object.self = self_link
return model_object
@classmethod
[docs] def get_mandatory_attrs(cls):
return [attr.name for attr in cls._wsme_attributes if attr.mandatory]
def _get_value(obj):
if obj is not wsme_types.Unset:
return obj
else:
return None