b78997c2bb
The Oslo Versioned Objects history is used to generate the manifests required to do compatibility changes to OVOs on data serialization between services running with different OVO history versions. We haven't updated our OVO history since Train so all the history and compatibility code (obj_make_compatible method) is no longer necessary. This patch consolidates the OVO history into a single version reflecting the current status of the OVO versions and removes the compatibility code from the OVO classes. Since we tend to forget to update the obj_make_compatible when we add a field (like it happened with Volume in version 1.8 when we added shared_targets) this patch also adds a note next to the "fields" attribute (except for the list OVOs which are never updated). Change-Id: Ibfacccfb7c7dc70bc8f8e5ab98cc9c8feae694fb
106 lines
3.5 KiB
Python
106 lines
3.5 KiB
Python
# Copyright 2016 Intel Corporation
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#
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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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from oslo_versionedobjects import fields
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from cinder.objects import base
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class ManageableObject(object):
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# NOTE: When adding a field obj_make_compatible needs to be updated
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fields = {
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'reference': fields.DictOfNullableStringsField(nullable=False),
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'size': fields.IntegerField(nullable=True),
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'safe_to_manage': fields.BooleanField(default=False, nullable=True),
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'reason_not_safe': fields.StringField(nullable=True),
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'cinder_id': fields.UUIDField(nullable=True),
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'extra_info': fields.DictOfNullableStringsField(nullable=True),
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}
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@classmethod
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def from_primitives(cls, context, dict_resource):
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resource = cls()
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driverkeys = set(dict_resource.keys()) - set(cls.fields.keys())
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for name, field in cls.fields.items():
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value = dict_resource.get(name)
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resource[name] = value
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for key in driverkeys:
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if resource['extra_info'] is None:
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resource['extra_info'] = {key: dict_resource[key]}
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resource._context = context
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resource.obj_reset_changes()
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return resource
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@base.CinderObjectRegistry.register
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class ManageableVolume(base.CinderObject, base.CinderObjectDictCompat,
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base.CinderComparableObject, ManageableObject):
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# Version 1.0: Initial version
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VERSION = '1.0'
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@base.CinderObjectRegistry.register
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class ManageableSnapshot(base.CinderObject, base.CinderObjectDictCompat,
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ManageableObject):
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# Version 1.0: Initial version
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VERSION = '1.0'
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# NOTE: When adding a field obj_make_compatible needs to be updated
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fields = {
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'source_reference': fields.DictOfNullableStringsField(),
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}
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@base.CinderObjectRegistry.register
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class ManageableVolumeList(base.ObjectListBase, base.CinderObject):
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# Version 1.0: Initial version
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VERSION = '1.0'
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fields = {
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'objects': fields.ListOfObjectsField('ManageableVolume'),
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}
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@classmethod
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def from_primitives(cls, context, data):
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ManageableVolumeList.objects = []
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for item in data:
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manage_vol_obj = ManageableVolume.from_primitives(context, item)
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ManageableVolumeList.objects.append(manage_vol_obj)
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ManageableVolumeList._context = context
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return ManageableVolumeList.objects
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@base.CinderObjectRegistry.register
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class ManageableSnapshotList(base.ObjectListBase, base.CinderObject):
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# Version 1.0: Initial version
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VERSION = '1.0'
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fields = {
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'objects': fields.ListOfObjectsField('ManageableSnapshot'),
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}
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@classmethod
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def from_primitives(cls, context, data):
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ManageableSnapshotList.objects = []
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for item in data:
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manage_snap_obj = ManageableSnapshot.from_primitives(context, item)
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ManageableSnapshotList.objects.append(manage_snap_obj)
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ManageableSnapshotList._context = context
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return ManageableSnapshotList.objects
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