weboob-devel/weboob/backends/aum/optim/queries_queue.py

101 lines
3.1 KiB
Python

# -*- coding: utf-8 -*-
# Copyright(C) 2010 Romain Bignon
#
# 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 3 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
from __future__ import with_statement
from weboob.tools.browser import BrowserUnavailable
from weboob.capabilities.dating import Optimization
from weboob.tools.log import getLogger
__all__ = ['QueriesQueue']
class QueriesQueue(Optimization):
def __init__(self, sched, storage, browser):
self.sched = sched
self.storage = storage
self.browser = browser
self.logger = getLogger('queriesqueue', browser.logger)
self.queue = storage.get('queries_queue', 'queue', default=[])
self.check_cron = None
def save(self):
self.storage.set('queries_queue', 'queue', self.queue)
self.storage.save()
def start(self):
self.check_cron = self.sched.repeat(3600, self.flush_queue)
return True
def stop(self):
self.sched.cancel(self.check_cron)
self.check_cron = None
return True
def is_running(self):
return self.check_cron is not None
def enqueue_query(self, id, priority=999):
self.queue.append((int(priority), int(id)))
self.save()
# Try to flush queue to send it now.
self.flush_queue()
# Check if the enqueued query has been sent
for p, i in self.queue:
if i == int(id):
return False
return True
def flush_queue(self):
self.queue.sort()
priority = 0
id = None
try:
try:
while len(self.queue) > 0:
priority, id = self.queue.pop()
if not id:
continue
with self.browser:
if self.browser.send_charm(id):
self.logger.info('Charm sent to %s' % id)
else:
self.queue.append((priority, id))
self.logger.info("Charm can't be send to %s" % id)
break
# As the charm has been correctly sent (no exception raised),
# we don't store anymore ID, because if nbAvailableCharms()
# fails, we don't want to re-queue this ID.
id = None
priority = 0
except BrowserUnavailable:
# We consider this profil hasn't been [correctly] analysed
if not id is None:
self.queue.append((priority, id))
finally:
self.save()