cybertools/agent/core/schedule.py
2008-03-23 20:16:48 +00:00

70 lines
2.2 KiB
Python

#
# Copyright (c) 2008 Helmut Merz helmutm@cy55.de
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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
#
"""
Basic (sample) job scheduler.
$Id: schedule.py 2415 2008-02-24 15:04:13Z helmutm $
"""
from time import time
from zope.interface import implements
from cybertools.agent.base.agent import Master
from cybertools.agent.components import schedulers
from cybertools.agent.interfaces import IScheduler
from twisted.internet import reactor
from twisted.internet.defer import Deferred
class Scheduler(object):
implements(IScheduler)
def __init__(self, agent):
self.agent = agent
self.queue = []
def schedule(self, job, startTime=None):
print "core.schedule called"
job.startTime = startTime or int(time())
self.queue.append(job)
if startTime is None:
startTime = int(time())
if startTime < int(time()):
'''
Only small test for first draft
'''
startTime = startTime + int(time())
job.startTime = startTime
job.scheduler = self
#while startTime in self.queue:
# startTime += 1
#self.queue[startTime] = job
#reactor.callLater(startTime-int(time()), job.execute)
job.execute()
return startTime
def getJobsToExecute(startTime=0):
return [j for j in self.queue.values() if startTime <= j.startTime]
schedulers.register(Scheduler, Master, name='sample')
#schedulers.register(Scheduler, Master, name='BasicCrawler')