Stephen Finucane
100b9dc62c
Merge these, removing an unnecessary layer of abstraction, and place them in the new 'nova.db.main' directory. The resulting change is huge, but it's mainly the result of 's/sqlalchemy import api/main import api/' and 's/nova.db.api/nova.db.main.api/' with some necessary cleanup. We also need to rework how we do the blocking of API calls since we no longer have a 'DBAPI' object that we can monkey patch as we were doing before. This is now done via a global variable that is set by the 'main' function of 'nova.cmd.compute'. The main impact of this change is that it's no longer possible to set '[database] use_db_reconnect' and have all APIs automatically wrapped in a DB retry. Seeing as this behavior is experimental, isn't applied to any of the API DB methods (which don't use oslo.db's 'DBAPI' helper), and is used explicitly in what would appear to be the critical cases (via the explicit 'oslo_db.api.wrap_db_retry' decorator), this doesn't seem like a huge loss. Change-Id: Iad2e4da4546b80a016e477577d23accb2606a6e4 Signed-off-by: Stephen Finucane <stephenfin@redhat.com>
109 lines
4.1 KiB
Python
109 lines
4.1 KiB
Python
# Copyright 2013 IBM Corp.
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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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import itertools
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from oslo_log import log as logging
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from nova.db.main import api as 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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LOG = logging.getLogger(__name__)
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# TODO(berrange): Remove NovaObjectDictCompat
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@base.NovaObjectRegistry.register
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class InstanceFault(base.NovaPersistentObject, base.NovaObject,
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base.NovaObjectDictCompat):
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# Version 1.0: Initial version
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# Version 1.1: String attributes updated to support unicode
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# Version 1.2: Added create()
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VERSION = '1.2'
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fields = {
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'id': fields.IntegerField(),
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'instance_uuid': fields.UUIDField(),
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'code': fields.IntegerField(),
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'message': fields.StringField(nullable=True),
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'details': fields.StringField(nullable=True),
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'host': fields.StringField(nullable=True),
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}
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@staticmethod
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def _from_db_object(context, fault, db_fault):
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# NOTE(danms): These are identical right now
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for key in fault.fields:
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fault[key] = db_fault[key]
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fault._context = context
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fault.obj_reset_changes()
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return fault
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@base.remotable_classmethod
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def get_latest_for_instance(cls, context, instance_uuid):
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db_faults = db.instance_fault_get_by_instance_uuids(context,
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[instance_uuid])
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if instance_uuid in db_faults and db_faults[instance_uuid]:
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return cls._from_db_object(context, cls(),
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db_faults[instance_uuid][0])
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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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values = {
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'instance_uuid': self.instance_uuid,
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'code': self.code,
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'message': self.message,
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'details': self.details,
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'host': self.host,
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}
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db_fault = db.instance_fault_create(self._context, values)
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self._from_db_object(self._context, self, db_fault)
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self.obj_reset_changes()
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@base.NovaObjectRegistry.register
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class InstanceFaultList(base.ObjectListBase, base.NovaObject):
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# Version 1.0: Initial version
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# InstanceFault <= version 1.1
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# Version 1.1: InstanceFault version 1.2
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# Version 1.2: Added get_latest_by_instance_uuids() method
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VERSION = '1.2'
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fields = {
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'objects': fields.ListOfObjectsField('InstanceFault'),
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}
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@base.remotable_classmethod
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def get_latest_by_instance_uuids(cls, context, instance_uuids):
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db_faultdict = db.instance_fault_get_by_instance_uuids(context,
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instance_uuids,
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latest=True)
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db_faultlist = itertools.chain(*db_faultdict.values())
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return base.obj_make_list(context, cls(context), objects.InstanceFault,
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db_faultlist)
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@base.remotable_classmethod
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def get_by_instance_uuids(cls, context, instance_uuids):
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db_faultdict = db.instance_fault_get_by_instance_uuids(context,
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instance_uuids)
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db_faultlist = itertools.chain(*db_faultdict.values())
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return base.obj_make_list(context, cls(context), objects.InstanceFault,
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db_faultlist)
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