cyborg/cyborg/objects/arq.py

73 lines
2.7 KiB
Python

# Copyright 2019 Beijing Lenovo Software Ltd.
# All Rights Reserved.
#
# 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.
from oslo_log import log as logging
from oslo_serialization import jsonutils
from oslo_versionedobjects import base as object_base
from cyborg.db import api as dbapi
from cyborg.objects import base
from cyborg.objects import fields as object_fields
LOG = logging.getLogger(__name__)
@base.CyborgObjectRegistry.register
class ARQ(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
# 1.1: v2 API and Nova integration
VERSION = '1.1'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'state': object_fields.ARQStateField(nullable=False),
'device_profile_name': object_fields.StringField(nullable=False),
'device_profile_group_id':
object_fields.IntegerField(nullable=False),
# Fields populated by Nova after scheduling for binding
'hostname': object_fields.StringField(nullable=True),
'device_rp_uuid': object_fields.StringField(nullable=True),
'instance_uuid': object_fields.StringField(nullable=True),
'project_id': object_fields.StringField(nullable=True),
# Fields populated by Cyborg after binding
'attach_handle_type': object_fields.StringField(nullable=True),
'attach_handle_info': object_fields.DictOfStringsField(nullable=True),
}
@staticmethod
def _from_db_object(arq, db_extarq):
"""Converts an ARQ to a formal object.
:param arq: An object of the class ARQ
:param db_extarq: A DB model of the object
:return: The object of the class with the database entity added
"""
ahi = db_extarq['attach_handle_info']
if ahi is not None and ahi != '':
d = jsonutils.loads(ahi)
db_extarq['attach_handle_info'] = d
else:
db_extarq['attach_handle_info'] = {}
for field in arq.fields:
arq[field] = db_extarq.get(field)
arq.obj_reset_changes()
return arq