OpenStack Block Storage (Cinder)
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# Copyright 2016 EMC Corporation
#
# 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 oslo_versionedobjects import fields
from cinder import exception
from cinder.i18n import _
from cinder import objects
from cinder.objects import base
from cinder.volume import group_types
@base.CinderObjectRegistry.register
class GroupType(base.CinderPersistentObject, base.CinderObject,
base.CinderObjectDictCompat, base.CinderComparableObject):
# Version 1.0: Initial version
VERSION = '1.0'
OPTIONAL_FIELDS = ['group_specs', 'projects']
fields = {
'id': fields.UUIDField(),
'name': fields.StringField(nullable=True),
'description': fields.StringField(nullable=True),
'is_public': fields.BooleanField(default=True, nullable=True),
'projects': fields.ListOfStringsField(nullable=True),
'group_specs': fields.DictOfNullableStringsField(nullable=True),
}
@classmethod
def _get_expected_attrs(cls, context):
return 'group_specs', 'projects'
@classmethod
def _from_db_object(cls, context, type, db_type, expected_attrs=None):
if expected_attrs is None:
expected_attrs = []
for name, field in type.fields.items():
if name in cls.OPTIONAL_FIELDS:
continue
value = db_type[name]
if isinstance(field, fields.IntegerField):
value = value or 0
type[name] = value
# Get data from db_type object that was queried by joined query
# from DB
if 'group_specs' in expected_attrs:
type.group_specs = {}
specs = db_type.get('group_specs')
if specs and isinstance(specs, list):
type.group_specs = {item['key']: item['value']
for item in specs}
elif specs and isinstance(specs, dict):
type.group_specs = specs
if 'projects' in expected_attrs:
type.projects = db_type.get('projects', [])
type._context = context
type.obj_reset_changes()
return type
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
db_group_type = group_types.create(self._context, self.name,
self.group_specs,
self.is_public, self.projects,
self.description)
self._from_db_object(self._context, self, db_group_type)
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
group_types.update(self._context, self.id, self.name,
self.description)
self.obj_reset_changes()
def destroy(self):
with self.obj_as_admin():
group_types.destroy(self._context, self.id)
@base.CinderObjectRegistry.register
class GroupTypeList(base.ObjectListBase, base.CinderObject):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'objects': fields.ListOfObjectsField('GroupType'),
}
@classmethod
def get_all(cls, context, inactive=0, filters=None, marker=None,
limit=None, sort_keys=None, sort_dirs=None, offset=None):
types = group_types.get_all_group_types(context, inactive, filters,
marker=marker, limit=limit,
sort_keys=sort_keys,
sort_dirs=sort_dirs,
offset=offset)
expected_attrs = GroupType._get_expected_attrs(context)
return base.obj_make_list(context, cls(context),
objects.GroupType, types.values(),
expected_attrs=expected_attrs)