Files
deb-python-taskflow/taskflow/persistence/backends/memory/memory.py
Joshua Harlow acd545f9c2 File movements
In order to rework some of the persistence layer I would
like to move around some of the files first, keeping job
specifics in a jobs folder. Having some of the items which
are root level taskflow items (flow, task) be at the root
of the hiearchy. Also for now until the celery work is
commited move that, since it doesn't make sense in backends
anyway.

Change-Id: If6c149710b40f70d4ec69ee8e523defe8f5e766d
2013-08-17 20:34:19 -07:00

129 lines
3.7 KiB
Python

# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (C) 2012 Yahoo! 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.
import contextlib
from taskflow import flow
from taskflow.jobs import job
from taskflow.jobs import jobboard
from taskflow.persistence import flowdetail
from taskflow.persistence import logbook
from taskflow.persistence import taskdetail
from taskflow import task
from taskflow import utils
class MemoryJobBoard(jobboard.JobBoard):
def __init__(self, name, jb_id=None):
super(MemoryJobBoard, self).__init__(name, jb_id)
self._lock = utils.ReaderWriterLock()
@contextlib.contextmanager
def acquire_lock(self, read=True):
try:
self._lock.acquire(read)
yield self._lock
finally:
self._lock.release()
class MemoryJob(job.Job):
def __init__(self, name, job_id=None):
super(MemoryJob, self).__init__(name, job_id)
self._lock = utils.ReaderWriterLock()
@contextlib.contextmanager
def acquire_lock(self, read=True):
try:
self._lock.acquire(read)
yield self._lock
finally:
self._lock.release()
class MemoryLogBook(logbook.LogBook):
def __init__(self, name, lb_id=None):
super(MemoryLogBook, self).__init__(name, lb_id)
self._lock = utils.ReaderWriterLock()
@contextlib.contextmanager
def acquire_lock(self, read=True):
try:
self._lock.acquire(read)
yield self._lock
finally:
self._lock.release()
class MemoryFlow(flow.Flow):
def __init__(self, name, wf_id=None):
super(MemoryFlow, self).__init__(name, wf_id)
self._lock = utils.ReaderWriterLock()
self.flowdetails = {}
@contextlib.contextmanager
def acquire_lock(self, read=True):
try:
self._lock.acquire(read)
yield self._lock
finally:
self._lock.release()
class MemoryFlowDetail(flowdetail.FlowDetail):
def __init__(self, name, wf, fd_id=None):
super(MemoryFlowDetail, self).__init__(name, wf, fd_id)
self._lock = utils.ReaderWriterLock()
@contextlib.contextmanager
def acquire_lock(self, read=True):
try:
self._lock.acquire(read)
yield self._lock
finally:
self._lock.release()
class MemoryTask(task.Task):
def __init__(self, name, task_id=None):
super(MemoryTask, self).__init__(name, task_id)
self._lock = utils.ReaderWriterLock()
self.taskdetails = {}
@contextlib.contextmanager
def acquire_lock(self, read=True):
try:
self._lock.acquire(read)
yield self._lock
finally:
self._lock.release()
class MemoryTaskDetail(taskdetail.TaskDetail):
def __init__(self, name, task, td_id=None):
super(MemoryTaskDetail, self).__init__(name, task, td_id)
self._lock = utils.ReaderWriterLock()
@contextlib.contextmanager
def acquire_lock(self, read=True):
try:
self._lock.acquire(read)
yield self._lock
finally:
self._lock.release()