Files
deb-python-taskflow/taskflow/generics/logbook.py
kchenweijie 4cee45e2e3 Added Memory Persistence API and Generic Datatypes
Added a generic persistence API for JobBoards,
Jobs, LogBooks, Workflows, FlowDetails, Tasks,
and TaskDetails. The currently implemented
backends are in-memory. Also implemented generic
return types (listed above) for the generic API.

Change-Id: I6d09860ee08a900faf2c213a230429bf9e0dec01
2013-08-09 14:40:02 -05:00

74 lines
2.1 KiB
Python

# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# 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 datetime import datetime
from taskflow.backends import api as b_api
from taskflow.openstack.common import uuidutils
class LogBook(object):
"""Generic backend class that contains TaskDetail snapshots from when
the FlowDetail is gotten. The data contained within this class is
not backed by the backend storage in real time.
The data in this class will only be persisted by the backend when
the save method is called.
"""
def __init__(self, name, lb_id=None):
if lb_id:
self._uuid = lb_id
else:
self._uuid = uuidutils.generate_uuid()
self._name = name
self.updated_at = datetime.now()
self._flowdetails = []
def save(self):
b_api.logbook_save(self)
def delete(self):
b_api.logbook_delete(self)
def add_flow_detail(self, fd):
self._flowdetails.append(fd)
def remove_flow_detail(self, fd):
self._flowdetails = [d for d in self._flowdetails
if d.uuid != fd.uuid]
def __contains__(self, fd):
for self_fd in self:
if self_fd.flowdetail_id == fd.flowdetail_id:
return True
return False
@property
def uuid(self):
return self._uuid
@property
def name(self):
return self._name
def __iter__(self):
for fd in self._flowdetails:
yield fd
def __len__(self):
return len(self._flowdetails)