b0b9f10305
Add these two helper function to cut InstanceAction object's dependency on compute/utils.py. This is a refactor change so that pack_action_start/finish code in compute/utils.py can be removed in a later change. The version of InstanceAction object doesn't change, since it's just an object internal refactoring. No object field or method has been changed. This is a part of: blueprint make-instance-action-use-objects Change-Id: I38bde7b057efa0ce5634941f4ffa5ef27123958c
190 lines
7.5 KiB
Python
190 lines
7.5 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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from nova.compute import utils as compute_utils
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from nova import db
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from nova.objects import base
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from nova.objects import fields
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from nova.openstack.common import timeutils
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class InstanceAction(base.NovaPersistentObject, base.NovaObject):
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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 = '1.1'
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fields = {
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'id': fields.IntegerField(),
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'action': fields.StringField(nullable=True),
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'instance_uuid': fields.UUIDField(nullable=True),
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'request_id': fields.StringField(nullable=True),
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'user_id': fields.StringField(nullable=True),
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'project_id': fields.StringField(nullable=True),
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'start_time': fields.DateTimeField(nullable=True),
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'finish_time': fields.DateTimeField(nullable=True),
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'message': fields.StringField(nullable=True),
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}
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@staticmethod
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def _from_db_object(context, action, db_action):
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for field in action.fields:
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action[field] = db_action[field]
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action._context = context
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action.obj_reset_changes()
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return action
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@staticmethod
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def pack_action_start(context, instance_uuid, action_name):
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values = {'request_id': context.request_id,
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'instance_uuid': instance_uuid,
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'user_id': context.user_id,
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'project_id': context.project_id,
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'action': action_name,
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'start_time': context.timestamp}
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return values
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@staticmethod
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def pack_action_finish(context, instance_uuid):
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values = {'request_id': context.request_id,
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'instance_uuid': instance_uuid,
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'finish_time': timeutils.utcnow()}
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return values
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@base.remotable_classmethod
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def get_by_request_id(cls, context, instance_uuid, request_id):
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db_action = db.action_get_by_request_id(context, instance_uuid,
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request_id)
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if db_action:
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return cls._from_db_object(context, cls(), db_action)
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@base.remotable_classmethod
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def action_start(cls, context, instance_uuid, action_name,
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want_result=True):
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values = cls.pack_action_start(context, instance_uuid, action_name)
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db_action = db.action_start(context, values)
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if want_result:
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return cls._from_db_object(context, cls(), db_action)
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@base.remotable_classmethod
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def action_finish(cls, context, instance_uuid, want_result=True):
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values = cls.pack_action_finish(context, instance_uuid)
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db_action = db.action_finish(context, values)
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if want_result:
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return cls._from_db_object(context, cls(), db_action)
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@base.remotable
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def finish(self, context):
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values = self.pack_action_finish(context, self.instance_uuid)
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db_action = db.action_finish(context, values)
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self._from_db_object(context, self, db_action)
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class InstanceActionList(base.ObjectListBase, base.NovaObject):
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# Version 1.0: Initial version
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# InstanceAction <= version 1.1
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VERSION = '1.0'
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fields = {
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'objects': fields.ListOfObjectsField('InstanceAction'),
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}
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child_versions = {
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'1.0': '1.1',
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# NOTE(danms): InstanceAction was at 1.1 before we added this
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}
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@base.remotable_classmethod
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def get_by_instance_uuid(cls, context, instance_uuid):
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db_actions = db.actions_get(context, instance_uuid)
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return base.obj_make_list(context, cls(), InstanceAction, db_actions)
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class InstanceActionEvent(base.NovaPersistentObject, base.NovaObject):
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fields = {
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'id': fields.IntegerField(),
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'event': fields.StringField(nullable=True),
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'action_id': fields.IntegerField(nullable=True),
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'start_time': fields.DateTimeField(nullable=True),
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'finish_time': fields.DateTimeField(nullable=True),
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'result': fields.StringField(nullable=True),
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'traceback': fields.StringField(nullable=True),
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}
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@staticmethod
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def _from_db_object(context, event, db_event):
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for field in event.fields:
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event[field] = db_event[field]
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event._context = context
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event.obj_reset_changes()
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return event
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@base.remotable_classmethod
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def get_by_id(cls, context, action_id, event_id):
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db_event = db.action_event_get_by_id(context, action_id, event_id)
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return cls._from_db_object(context, cls(), db_event)
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@base.remotable_classmethod
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def event_start(cls, context, instance_uuid, event_name, want_result=True):
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values = compute_utils.pack_action_event_start(context, instance_uuid,
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event_name)
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db_event = db.action_event_start(context, values)
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if want_result:
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return cls._from_db_object(context, cls(), db_event)
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@base.remotable_classmethod
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def event_finish_with_failure(cls, context, instance_uuid, event_name,
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exc_val=None, exc_tb=None, want_result=None):
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values = compute_utils.pack_action_event_finish(context, instance_uuid,
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event_name,
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exc_val=exc_val,
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exc_tb=exc_tb)
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db_event = db.action_event_finish(context, values)
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if want_result:
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return cls._from_db_object(context, cls(), db_event)
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@base.remotable_classmethod
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def event_finish(cls, context, instance_uuid, event_name,
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want_result=True):
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return cls.event_finish_with_failure(context, instance_uuid,
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event_name, exc_val=None,
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exc_tb=None,
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want_result=want_result)
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@base.remotable
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def finish_with_failure(self, context, exc_val, exc_tb):
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values = compute_utils.pack_action_event_finish(context,
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self.instance_uuid,
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self.event,
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exc_val=exc_val,
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exc_tb=exc_tb)
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db_event = db.action_event_finish(context, values)
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self._from_db_object(context, self, db_event)
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@base.remotable
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def finish(self, context):
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self.finish_with_failure(context, exc_val=None, exc_tb=None)
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class InstanceActionEventList(base.ObjectListBase, base.NovaObject):
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fields = {
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'objects': fields.ListOfObjectsField('InstanceActionEvent'),
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}
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child_versions = {
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'1.0': '1.0',
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}
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@base.remotable_classmethod
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def get_by_action(cls, context, action_id):
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db_events = db.action_events_get(context, action_id)
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return base.obj_make_list(context, cls(), InstanceActionEvent,
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db_events)
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