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OpenStack Study: instance_fault.py**** CubicPower OpenStack Study ****
# # 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. import itertools from nova import db from nova.objects import base from nova.objects import fields
**** CubicPower OpenStack Study **** class InstanceFault(base.NovaPersistentObject, base.NovaObject): # Version 1.0: Initial version # Version 1.1: String attributes updated to support unicode VERSION = '1.1' fields = { 'id': fields.IntegerField(), 'instance_uuid': fields.UUIDField(), 'code': fields.IntegerField(), 'message': fields.StringField(nullable=True), 'details': fields.StringField(nullable=True), 'host': fields.StringField(nullable=True), } @staticmethod
**** CubicPower OpenStack Study **** def _from_db_object(context, fault, db_fault): # NOTE(danms): These are identical right now for key in fault.fields: fault[key] = db_fault[key] fault._context = context fault.obj_reset_changes() return fault @base.remotable_classmethod
**** CubicPower OpenStack Study **** def get_latest_for_instance(cls, context, instance_uuid): db_faults = db.instance_fault_get_by_instance_uuids(context, [instance_uuid]) if instance_uuid in db_faults and db_faults[instance_uuid]: return cls._from_db_object(context, cls(), db_faults[instance_uuid][0])
**** CubicPower OpenStack Study **** class InstanceFaultList(base.ObjectListBase, base.NovaObject): # Version 1.0: Initial version # InstanceFault <= version 1.1 VERSION = '1.0' fields = { 'objects': fields.ListOfObjectsField('InstanceFault'), } child_versions = { '1.0': '1.1', # NOTE(danms): InstanceFault was at 1.1 before we added this } @base.remotable_classmethod
**** CubicPower OpenStack Study **** def get_by_instance_uuids(cls, context, instance_uuids): db_faultdict = db.instance_fault_get_by_instance_uuids(context, instance_uuids) db_faultlist = itertools.chain(*db_faultdict.values()) return base.obj_make_list(context, InstanceFaultList(), InstanceFault, db_faultlist)
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