OpenStack Block Storage (Cinder)
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# Copyright 2016 Intel 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_utils import versionutils
from oslo_versionedobjects import fields
from cinder import objects
from cinder.objects import base
@base.CinderObjectRegistry.register
class RequestSpec(base.CinderObject, base.CinderObjectDictCompat,
base.CinderComparableObject):
# Version 1.0: Initial version
# Version 1.1: Added group_id and group_backend
# Version 1.2 Added ``resource_backend``
# Version 1.3: Added backup_id
# Version 1.4: Add 'operation'
# Version 1.5: Added 'availability_zones'
VERSION = '1.5'
fields = {
'consistencygroup_id': fields.UUIDField(nullable=True),
'group_id': fields.UUIDField(nullable=True),
'cgsnapshot_id': fields.UUIDField(nullable=True),
'image_id': fields.UUIDField(nullable=True),
'snapshot_id': fields.UUIDField(nullable=True),
'source_replicaid': fields.UUIDField(nullable=True),
'source_volid': fields.UUIDField(nullable=True),
'volume_id': fields.UUIDField(nullable=True),
'volume': fields.ObjectField('Volume', nullable=True),
'volume_type': fields.ObjectField('VolumeType', nullable=True),
'volume_properties': fields.ObjectField('VolumeProperties',
nullable=True),
'CG_backend': fields.StringField(nullable=True),
'group_backend': fields.StringField(nullable=True),
'resource_backend': fields.StringField(nullable=True),
'backup_id': fields.UUIDField(nullable=True),
'operation': fields.StringField(nullable=True),
'availability_zones': fields.ListOfStringsField(nullable=True),
}
obj_extra_fields = ['resource_properties']
@property
def resource_properties(self):
# TODO(dulek): This is to maintain compatibility with filters from
# oslo-incubator. As we've moved them into our codebase we should adapt
# them to use volume_properties and remove this shim.
return self.volume_properties
@classmethod
def from_primitives(cls, spec):
"""Returns RequestSpec object creating it from legacy dictionary.
FIXME(dulek): This should go away in early O as we stop supporting
backward compatibility with M.
"""
spec = spec.copy()
spec_obj = cls()
vol_props = spec.pop('volume_properties', {})
if vol_props is not None:
vol_props = VolumeProperties(**vol_props)
spec_obj.volume_properties = vol_props
if 'volume' in spec:
vol = spec.pop('volume', {})
vol.pop('name', None)
if vol is not None:
vol = objects.Volume(**vol)
spec_obj.volume = vol
if 'volume_type' in spec:
vol_type = spec.pop('volume_type', {})
if vol_type is not None:
vol_type = objects.VolumeType(**vol_type)
spec_obj.volume_type = vol_type
spec.pop('resource_properties', None)
for k, v in spec.items():
setattr(spec_obj, k, v)
return spec_obj
def obj_make_compatible(self, primitive, target_version):
"""Make an object representation compatible with target version."""
super(RequestSpec, self).obj_make_compatible(primitive, target_version)
target_version = versionutils.convert_version_to_tuple(target_version)
added_fields = (((1, 1), ('group_id', 'group_backend')),
((1, 2), ('resource_backend')),
((1, 3), ('backup_id')),
((1, 4), ('operation')),
((1, 5), ('availability_zones')))
for version, remove_fields in added_fields:
if target_version < version:
for obj_field in remove_fields:
primitive.pop(obj_field, None)
@base.CinderObjectRegistry.register
class VolumeProperties(base.CinderObject, base.CinderObjectDictCompat):
# Version 1.0: Initial version
# Version 1.1: Added group_id and group_type_id
VERSION = '1.1'
# TODO(dulek): We should add this to initially move volume_properites to
# ovo, but this should be removed as soon as possible. Most of the data
# here is already in request_spec and volume there. Outstanding ones would
# be reservation, and qos_specs. First one may be moved to request_spec and
# second added as relationship in volume_type field and whole
# volume_properties (and resource_properties) in request_spec won't be
# needed.
fields = {
'attach_status': fields.StringField(nullable=True),
'availability_zone': fields.StringField(nullable=True),
'cgsnapshot_id': fields.UUIDField(nullable=True),
'consistencygroup_id': fields.UUIDField(nullable=True),
'group_id': fields.UUIDField(nullable=True),
'display_description': fields.StringField(nullable=True),
'display_name': fields.StringField(nullable=True),
'encryption_key_id': fields.UUIDField(nullable=True),
'metadata': fields.DictOfStringsField(nullable=True),
'multiattach': fields.BooleanField(nullable=True),
'project_id': fields.StringField(nullable=True),
'qos_specs': fields.DictOfStringsField(nullable=True),
'replication_status': fields.StringField(nullable=True),
'reservations': fields.ListOfStringsField(nullable=True),
'size': fields.IntegerField(nullable=True),
'snapshot_id': fields.UUIDField(nullable=True),
'source_replicaid': fields.UUIDField(nullable=True),
'source_volid': fields.UUIDField(nullable=True),
'status': fields.StringField(nullable=True),
'user_id': fields.StringField(nullable=True),
'volume_type_id': fields.UUIDField(nullable=True),
'group_type_id': fields.UUIDField(nullable=True),
}