Mercurial > kallithea
view rhodecode/lib/celerylib/__init__.py @ 1067:717ccea6df18 beta
fixed some very strange issue with htmlfill import - don't know why but this needs to be imported as separate module
author | Marcin Kuzminski <marcin@python-works.com> |
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date | Sat, 19 Feb 2011 07:39:01 +0100 |
parents | 02246101c846 |
children | c2440badab84 |
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# -*- coding: utf-8 -*- """ rhodecode.lib.celerylib.__init__ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ celery libs for RhodeCode :created_on: Nov 27, 2010 :author: marcink :copyright: (C) 2009-2011 Marcin Kuzminski <marcin@python-works.com> :license: GPLv3, see COPYING for more details. """ # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; version 2 # of the License or (at your opinion) any later version of the license. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, # MA 02110-1301, USA. import os import sys import socket import traceback import logging from hashlib import md5 from decorator import decorator from vcs.utils.lazy import LazyProperty from rhodecode.lib import str2bool from rhodecode.lib.pidlock import DaemonLock, LockHeld from celery.messaging import establish_connection from pylons import config log = logging.getLogger(__name__) try: CELERY_ON = str2bool(config['app_conf'].get('use_celery')) except KeyError: CELERY_ON = False class ResultWrapper(object): def __init__(self, task): self.task = task @LazyProperty def result(self): return self.task def run_task(task, *args, **kwargs): if CELERY_ON: try: t = task.apply_async(args=args, kwargs=kwargs) log.info('running task %s:%s', t.task_id, task) return t except socket.error, e: if e.errno == 111: log.debug('Unable to connect to celeryd. Sync execution') else: log.error(traceback.format_exc()) except KeyError, e: log.debug('Unable to connect to celeryd. Sync execution') except Exception, e: log.error(traceback.format_exc()) log.debug('executing task %s in sync mode', task) return ResultWrapper(task(*args, **kwargs)) def locked_task(func): def __wrapper(func, *fargs, **fkwargs): params = list(fargs) params.extend(['%s-%s' % ar for ar in fkwargs.items()]) lockkey = 'task_%s' % \ md5(str(func.__name__) + '-' + \ '-'.join(map(str, params))).hexdigest() log.info('running task with lockkey %s', lockkey) try: l = DaemonLock(lockkey) ret = func(*fargs, **fkwargs) l.release() return ret except LockHeld: log.info('LockHeld') return 'Task with key %s already running' % lockkey return decorator(__wrapper, func)