145 lines
5.4 KiB
Python
145 lines
5.4 KiB
Python
# Copyright (C) 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 oslo_utils import versionutils
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from nova import db
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from nova import exception
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from nova import objects
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from nova.objects import base
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from nova.objects import fields
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VIF_OPTIONAL_FIELDS = ['network_id']
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@base.NovaObjectRegistry.register
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class VirtualInterface(base.NovaPersistentObject, base.NovaObject):
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# Version 1.0: Initial version
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# Version 1.1: Add tag field
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# Version 1.2: Adding a save method
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# Version 1.3: Added destroy() method
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VERSION = '1.3'
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fields = {
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'id': fields.IntegerField(),
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# This is a MAC address.
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'address': fields.StringField(nullable=True),
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'network_id': fields.IntegerField(),
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'instance_uuid': fields.UUIDField(),
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'uuid': fields.UUIDField(),
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'tag': fields.StringField(nullable=True),
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}
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def obj_make_compatible(self, primitive, target_version):
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target_version = versionutils.convert_version_to_tuple(target_version)
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if target_version < (1, 1) and 'tag' in primitive:
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del primitive['tag']
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@staticmethod
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def _from_db_object(context, vif, db_vif):
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for field in vif.fields:
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if not db_vif[field] and field in VIF_OPTIONAL_FIELDS:
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continue
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else:
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setattr(vif, field, db_vif[field])
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# NOTE(danms): The neutronv2 module namespaces mac addresses
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# with port id to avoid uniqueness constraints currently on
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# our table. Strip that out here so nobody else needs to care.
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if 'address' in vif and '/' in vif.address:
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vif.address, _ = vif.address.split('/', 1)
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vif._context = context
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vif.obj_reset_changes()
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return vif
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@base.remotable_classmethod
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def get_by_id(cls, context, vif_id):
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db_vif = db.virtual_interface_get(context, vif_id)
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if db_vif:
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return cls._from_db_object(context, cls(), db_vif)
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@base.remotable_classmethod
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def get_by_uuid(cls, context, vif_uuid):
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db_vif = db.virtual_interface_get_by_uuid(context, vif_uuid)
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if db_vif:
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return cls._from_db_object(context, cls(), db_vif)
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@base.remotable_classmethod
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def get_by_address(cls, context, address):
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db_vif = db.virtual_interface_get_by_address(context, address)
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if db_vif:
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return cls._from_db_object(context, cls(), db_vif)
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@base.remotable_classmethod
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def get_by_instance_and_network(cls, context, instance_uuid, network_id):
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db_vif = db.virtual_interface_get_by_instance_and_network(context,
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instance_uuid, network_id)
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if db_vif:
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return cls._from_db_object(context, cls(), db_vif)
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@base.remotable
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def create(self):
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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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updates = self.obj_get_changes()
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db_vif = db.virtual_interface_create(self._context, updates)
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self._from_db_object(self._context, self, db_vif)
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@base.remotable
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def save(self):
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updates = self.obj_get_changes()
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if 'address' in updates:
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raise exception.ObjectActionError(action='save',
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reason='address is not mutable')
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db_vif = db.virtual_interface_update(self._context, self.address,
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updates)
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return self._from_db_object(self._context, self, db_vif)
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@base.remotable_classmethod
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def delete_by_instance_uuid(cls, context, instance_uuid):
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db.virtual_interface_delete_by_instance(context, instance_uuid)
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@base.remotable
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def destroy(self):
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db.virtual_interface_delete(self._context, self.id)
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@base.NovaObjectRegistry.register
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class VirtualInterfaceList(base.ObjectListBase, 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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'objects': fields.ListOfObjectsField('VirtualInterface'),
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}
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@base.remotable_classmethod
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def get_all(cls, context):
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db_vifs = db.virtual_interface_get_all(context)
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return base.obj_make_list(context, cls(context),
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objects.VirtualInterface, db_vifs)
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@staticmethod
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@db.select_db_reader_mode
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def _db_virtual_interface_get_by_instance(context, instance_uuid,
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use_slave=False):
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return db.virtual_interface_get_by_instance(context, instance_uuid)
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@base.remotable_classmethod
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def get_by_instance_uuid(cls, context, instance_uuid, use_slave=False):
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db_vifs = cls._db_virtual_interface_get_by_instance(
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context, instance_uuid, use_slave=use_slave)
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return base.obj_make_list(context, cls(context),
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objects.VirtualInterface, db_vifs)
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