Files
deb-nova/nova/objects/agent.py
Daniel P. Berrange e3b63f3b71 objects: remove dict compat support from all XXXList() objects
The XXXList() classes only ever have a single 'objects' attribute
and this is never directly accessed as a dict key, instead all
callers use it in list context. Thus the dict compat support can
be removed from all these objects

Change-Id: I3f8d49d25b99dd0a498dfaad705c6332908cb72f
2014-12-12 14:06:12 +00:00

87 lines
2.8 KiB
Python

# Copyright 2014 Red Hat, Inc
#
# 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 nova import db
from nova import exception
from nova import objects
from nova.objects import base
from nova.objects import fields
# TODO(berrange): Remove NovaObjectDictCompat
class Agent(base.NovaPersistentObject, base.NovaObject,
base.NovaObjectDictCompat):
VERSION = '1.0'
fields = {
'id': fields.IntegerField(read_only=True),
'hypervisor': fields.StringField(),
'os': fields.StringField(),
'architecture': fields.StringField(),
'version': fields.StringField(),
'url': fields.StringField(),
'md5hash': fields.StringField(),
}
@staticmethod
def _from_db_object(context, agent, db_agent):
for name in agent.fields:
agent[name] = db_agent[name]
agent._context = context
agent.obj_reset_changes()
return agent
@base.remotable_classmethod
def get_by_triple(cls, context, hypervisor, os, architecture):
db_agent = db.agent_build_get_by_triple(context, hypervisor,
os, architecture)
if not db_agent:
return None
return cls._from_db_object(context, objects.Agent(), db_agent)
@base.remotable
def create(self, context):
updates = self.obj_get_changes()
if 'id' in updates:
raise exception.ObjectActionError(action='create',
reason='Already Created')
db_agent = db.agent_build_create(context, updates)
self._from_db_object(context, self, db_agent)
@base.remotable
def destroy(self, context):
db.agent_build_destroy(context, self.id)
@base.remotable
def save(self, context):
updates = self.obj_get_changes()
db.agent_build_update(context, self.id, updates)
self.obj_reset_changes()
class AgentList(base.ObjectListBase, base.NovaObject):
VERSION = '1.0'
fields = {
'objects': fields.ListOfObjectsField('Agent'),
}
child_versions = {
'1.0': '1.0',
}
@base.remotable_classmethod
def get_all(cls, context, hypervisor=None):
db_agents = db.agent_build_get_all(context, hypervisor=hypervisor)
return base.obj_make_list(context, cls(), objects.Agent, db_agents)