57 lines
1.9 KiB
Python
57 lines
1.9 KiB
Python
# Copyright 2014 Red Hat Inc.
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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 nova import db
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from nova import exception
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from nova.objects import base
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from nova.objects import fields
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class VolumeMapping(base.NovaPersistentObject, base.NovaObject):
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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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'id': fields.IntegerField(),
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'uuid': fields.UUIDField(),
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}
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@staticmethod
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def _from_db_object(context, vmap, db_vmap):
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for field in vmap.fields:
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vmap[field] = db_vmap[field]
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vmap._context = context
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vmap.obj_reset_changes()
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return vmap
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@base.remotable
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def create(self, context):
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if self.obj_attr_is_set('id'):
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raise exception.ObjectActionError(action='create',
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reason='already created')
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db_vmap = db.ec2_volume_create(context, self.uuid)
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self._from_db_object(context, self, db_vmap)
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@base.remotable_classmethod
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def get_by_uuid(cls, context, volume_uuid):
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db_vmap = db.ec2_volume_get_by_uuid(context, volume_uuid)
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if db_vmap:
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return cls._from_db_object(context, cls(), db_vmap)
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@base.remotable_classmethod
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def get_by_id(cls, context, ec2_id):
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db_vmap = db.ec2_volume_get_by_id(context, ec2_id)
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if db_vmap:
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return cls._from_db_object(context, cls(), db_vmap)
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