17bf3db06a
Remove line containing comment - # vim: tabstop=4 shiftwidth=4 softtabstop=4 Change-Id: I7581cc88b8de433d5609ed06c6570b0b45c13573 Closes-Bug:#1229324
117 lines
3.7 KiB
Python
117 lines
3.7 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
# Copyright (C) 2012 Yahoo! Inc. All Rights Reserved.
|
|
# Copyright (C) 2013 Rackspace Hosting Inc. 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 sqlalchemy import Column, String, DateTime
|
|
from sqlalchemy.ext.declarative import declarative_base
|
|
from sqlalchemy import ForeignKey
|
|
from sqlalchemy.orm import backref
|
|
from sqlalchemy.orm import relationship
|
|
from sqlalchemy import types as types
|
|
|
|
from taskflow.openstack.common import jsonutils
|
|
from taskflow.openstack.common import timeutils
|
|
from taskflow.openstack.common import uuidutils
|
|
|
|
from taskflow.utils import persistence_utils
|
|
|
|
BASE = declarative_base()
|
|
|
|
|
|
# TODO(harlowja): remove when oslo.db exists
|
|
class TimestampMixin(object):
|
|
created_at = Column(DateTime, default=timeutils.utcnow)
|
|
updated_at = Column(DateTime, onupdate=timeutils.utcnow)
|
|
|
|
|
|
class Json(types.TypeDecorator):
|
|
impl = types.Text
|
|
|
|
def process_bind_param(self, value, dialect):
|
|
return jsonutils.dumps(value)
|
|
|
|
def process_result_value(self, value, dialect):
|
|
return jsonutils.loads(value)
|
|
|
|
|
|
class Failure(types.TypeDecorator):
|
|
"""Put misc.Failure object into database column.
|
|
|
|
We convert Failure object to dict, serialize that dict into
|
|
JSON and save it. None is stored as NULL.
|
|
|
|
The conversion is lossy since we cannot save exc_info.
|
|
"""
|
|
impl = types.Text
|
|
|
|
def process_bind_param(self, value, dialect):
|
|
if value is None:
|
|
return None
|
|
return jsonutils.dumps(persistence_utils.failure_to_dict(value))
|
|
|
|
def process_result_value(self, value, dialect):
|
|
if value is None:
|
|
return None
|
|
return persistence_utils.failure_from_dict(jsonutils.loads(value))
|
|
|
|
|
|
class ModelBase(TimestampMixin):
|
|
"""Base model for all taskflow objects."""
|
|
uuid = Column(String, default=uuidutils.generate_uuid,
|
|
primary_key=True, nullable=False, unique=True)
|
|
name = Column(String, nullable=True)
|
|
meta = Column(Json, nullable=True)
|
|
|
|
|
|
class LogBook(BASE, ModelBase):
|
|
"""Represents a logbook for a set of flows."""
|
|
__tablename__ = 'logbooks'
|
|
|
|
# Relationships
|
|
flowdetails = relationship("FlowDetail",
|
|
single_parent=True,
|
|
backref=backref("logbooks",
|
|
cascade="save-update, delete, "
|
|
"merge"))
|
|
|
|
|
|
class FlowDetail(BASE, ModelBase):
|
|
__tablename__ = 'flowdetails'
|
|
|
|
# Member variables
|
|
state = Column(String)
|
|
|
|
# Relationships
|
|
parent_uuid = Column(String, ForeignKey('logbooks.uuid'))
|
|
taskdetails = relationship("TaskDetail",
|
|
single_parent=True,
|
|
backref=backref("flowdetails",
|
|
cascade="save-update, delete, "
|
|
"merge"))
|
|
|
|
|
|
class TaskDetail(BASE, ModelBase):
|
|
__tablename__ = 'taskdetails'
|
|
|
|
# Member variables
|
|
state = Column(String)
|
|
results = Column(Json)
|
|
failure = Column(Failure)
|
|
version = Column(String)
|
|
|
|
# Relationships
|
|
parent_uuid = Column(String, ForeignKey('flowdetails.uuid'))
|