def update(self, task_name='test', period='', every='', crontab='', queue='', args=None, kwargs=None):
pt = self.task
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
ptask_name = "%s_%s" % (task_name, datetime.now())
pt.name=ptask_name
if period and every:
if period not in permissible_periods:
raise Exception('Invalid period specified')
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
pt.interval=interval_schedule
elif crontab:
pt.crontab = crontab
if args:
pt.args = args
if kwargs:
pt.kwargs = kwargs
pt.queue = queue
pt.save(update_fields=['name', 'task', 'queue', 'interval', 'args', 'kwargs',])
print(pt)
def post(self, *args, **kwargs):
seconds = self.request.POST.get('seconds')
if seconds: # 几秒后执行任务
# 重复任务
int_sche = IntervalSchedule.objects.filter(every=seconds, period='seconds')
if int_sche:
int_sche = int_sche[0]
else:
int_sche = IntervalSchedule()
int_sche.every = int(seconds)
int_sche.period = 'seconds'
int_sche.save()
# 定时任务(也可以是重复的，不能精确到秒)
# cron_sche = CrontabSchedule()
# cron_sche.minute = 1
# cron_sche.hour = 1
# cron_sche.day_of_week = '0,1,2'
# cron_sche.day_of_month = '0,1,2'
# cron_sche.month_of_year = '0,1,2'
# cron_sche.save()
pt = PeriodicTask()
pt.name = u'每隔 %sS 执行一次任务 %s' % (seconds, str(uuid.uuid1())) # name 是唯一的，故后缀了uuid
pt.task = 'demo_celery.tasks.add'
pt.interval = int_sche # interval 和 schedule 这两个属性只能选一个
# pt.crontab = cron_sche
# pt.expires = datetime.datetime.now() + datetime.timedelta(days=1)
pt.save()
return HttpResponse('添加成功')
else:
res = add.delay(2, 3)
return HttpResponse(HttpResponse(res.result))
def schedule_every(task_name, period, every, args=None, kwargs=None):
"""
schedules a task by name every "every" "period". So an example call would be:
TaskScheduler('mycustomtask', 'seconds', 30, [1,2,3])
that would schedule your custom task to run every 30 seconds with the arguments 1,2 and 3 passed to the actual task.
"""
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# create the periodic task and the interval
ptask_name = "%s_%s" % (task_name, datetime.now()
) # create some name for the period task
interval_schedules = IntervalSchedule.objects.filter(period=period,
every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=ptask_name,
task=task_name,
interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return TaskScheduler.objects.create(periodic_task=ptask)
def schedule_every(self, task_name, period, every, crontab='',args=None, kwargs=None, queue=''):
main_task = 'optimizer.tasks.base_task'
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
# create the periodic task and the interval
ptask_name = "%s_%s" % (task_name, datetime.datetime.now()) # create some name for the period task
if period and every:
if period not in permissible_periods:
raise Exception('Invalid period specified')
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=ptask_name, task=main_task, interval=interval_schedule)
elif crontab:
ptask = PeriodicTask(name=ptask_name, task=main_task, crontab=crontab)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.queue = queue
ptask.save()
return ptask
def schedule_every(task_name, period, every, args=None, kwargs=None):
"""
schedules a task by name every "every" "period". So an example call would be:
TaskScheduler('mycustomtask', 'seconds', 30, [1,2,3])
that would schedule your custom task to run every 30 seconds with the arguments 1,2 and 3 passed to the actual task.
"""
permissible_periods = ["days", "hours", "minutes", "seconds"]
if period not in permissible_periods:
raise Exception("Invalid period specified")
# create the periodic task and the interval
ptask_name = "%s_%s" % (task_name, datetime.now()) # create some name for the period task
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=ptask_name, task=task_name, interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return TaskScheduler.objects.create(periodic_task=ptask)
def post(self, request):
ret = {"result": 0}
if not request.user.has_perm(self.permission_required):
ret["result"] = 1
ret["msg"] = "Sorry,你没有'添加 IntervalSchedule '的权限,请联系运维!"
return JsonResponse(ret)
interval_schedule_add_form = IntervalScheduleForm(request.POST)
if not interval_schedule_add_form.is_valid():
ret["result"] = 1
error_msg = json.loads(
interval_schedule_add_form.errors.as_json(escape_html=False))
ret["msg"] = '\n'.join(
[i["message"] for v in error_msg.values() for i in v])
return JsonResponse(ret)
try:
cs_obj = IntervalSchedule(
**interval_schedule_add_form.cleaned_data)
cs_obj.save()
except Exception as e:
ret["result"] = 1
ret["msg"] = "IntervalSchedule 保存对象失败，请查看日志..."
wslog_error().error("IntervalSchedule 保存对象失败, 错误信息: %s" % (e.args))
else:
ret["msg"] = "添加 IntervalSchedule 对象成功"
return JsonResponse(ret)
def make_periodic_interval_task(name, task, every_sec, *args, **kwargs):
'''creates a new periodic interval task, with name=name, updates fields if already exists'''
pt, created = PeriodicTask.objects.get_or_create(name= name)
if pt.crontab:
print("Warning, old task entry had a crontab")
if pt.crontab.periodictask_set.count() == 1:
print("Was the only one used , deleting it")
ct = pt.crontab
ct.delete()
pt.crontab = None
if not pt.interval:
i= IntervalSchedule()
else:
i= pt.interval
i.period = "seconds"
i.every = str(every_sec)
i.save()
pt.interval = i
pt.task = task
pt.args = anyjson.serialize(args)
pt.kwargs = anyjson.serialize(kwargs)
pt.save()
print ("saved task: %s, created: %s" % (str(pt), str(created)))
def add_task(request, nums):
if request.method == 'GET':
logging.info(nums)
if nums: # 几秒后执行任务
# 重复任务
int_sche = IntervalSchedule.objects.filter(every=nums, period='seconds')
if int_sche:
int_sche = int_sche[0]
else:
int_sche = IntervalSchedule()
int_sche.every = nums
int_sche.period = 'seconds'
int_sche.save()
# 定时任务(也可以是重复的，不能精确到秒)
# cron_sche = CrontabSchedule()
# cron_sche.minute = 1
# cron_sche.hour = 1
# cron_sche.day_of_week = '0,1,2'
# cron_sche.day_of_month = '0,1,2'
# cron_sche.month_of_year = '0,1,2'
# cron_sche.save()
pt = PeriodicTask()
pt.name = u'每隔 %sS 执行一次任务 %s' % (nums, str(uuid.uuid1())) # name 是唯一的，故后缀了uuid
pt.task = 'celery_demo.tasks.add'
pt.interval= int_sche # interval 和 schedule 这两个属性只能选一个
# pt.crontab = cron_sche
# pt.expires = datetime.datetime.now() + datetime.timedelta(days=1)
pt.save()
else:
res = add.delay(2, 3)
return HttpResponse(HttpResponse(res.result))
def schedule_every(self, every, period, args=None, kwargs=None):
print "Scheduling %s to run every %s %s" % (self.name, every, period)
if self.periodic_task:
self.periodic_task.delete()
print "Cleared all current periodic tasks"
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified: %s, must be one of: %s' % (period, ','.join(permissible_periods)))
# create the periodic task and the interval
ptask_name = "%s_%s" % (self.celery_task_name, self.name)
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else:
interval_schedule = IntervalSchedule()
interval_schedule.every = every
interval_schedule.period = period
interval_schedule.save()
print "Creating new periodic task"
periodic_task = PeriodicTask(name=ptask_name, task=self.celery_task_name, interval=interval_schedule)
if args:
periodic_task.args = args
if kwargs:
periodic_task.kwargs = kwargs
periodic_task.save()
print "Attached the periodic task to the project task"
self.periodic_task = periodic_task
print "Saving project task"
self.save()
def add_periodic_task(every, alert_conf):
'''
###Add one celery periodic task for this rule###
Accept interval time and alert_conf_id, and add new periodic task with these details.
intervals reused if already exist.
'''
#1. Set Interval time on IntervalSchedule Table.
interval = IntervalSchedule.objects.filter(every=every, period='minutes')
if interval:
interval = interval[0]
else:
'No interval exist, add new one.'
interval = IntervalSchedule(every=every, period='minutes')
interval.save()
#2. Adding Periodic task
#generate unique name, This make user to freely assign name for Alert Confs.
name = "%s-%s" % (alert_conf.name, random.randrange(start=100, stop=999))
periodic_task = PeriodicTask(name=name,
task='signin.tasks.process_an_alert',
args=simplejson.dumps([alert_conf.id]),
interval=interval,
enabled=True)
periodic_task.save()
def schedule_every(task_name, task, period, every, args=None, kwargs=None):
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# create the periodic task and the interval
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=task_name, task=task, interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return TaskScheduler.objects.create(periodic_task=ptask)
def schedule_task_every(task_name, every, period, args=None, kwargs=None):
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# create the periodic task and the interval
ptask_name = "%s_%s" % (task_name, datetime.datetime.now())
interval_schedules = IntervalSchedule.objects.filter(period=period, every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else:
interval_schedule = IntervalSchedule()
interval_schedule.every = every
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=ptask_name, task=task_name, interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return ProjectTask.objects.create(periodic_task=ptask, name=task_name)
def schedule_every(task_name, task, period, every, args=None, kwargs=None):
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# create the periodic task and the interval
interval_schedules = IntervalSchedule.objects.filter(period=period,
every=every)
if interval_schedules: # just check if interval schedules exist like that already and reuse em
interval_schedule = interval_schedules[0]
else: # create a brand new interval schedule
interval_schedule = IntervalSchedule()
interval_schedule.every = every # should check to make sure this is a positive int
interval_schedule.period = period
interval_schedule.save()
ptask = PeriodicTask(name=task_name,
task=task,
interval=interval_schedule)
if args:
ptask.args = args
if kwargs:
ptask.kwargs = kwargs
ptask.save()
return TaskScheduler.objects.create(periodic_task=ptask)
def manage_interval(period, every):
""" adapted from
https://groups.google.com/forum/#!msg/celery-users/CZXCh8sCK5Q/ihZgMV2HWWYJ
c/o Jean Mark
"""
permissible_periods = ['days', 'hours', 'minutes', 'seconds']
if period not in permissible_periods:
raise Exception('Invalid period specified')
# query intervals
interval_schedules = IntervalSchedule.objects.filter(period=period,
every=every)
# just check if interval schedules exist like that already and reuse em
if interval_schedules:
interval_schedule = interval_schedules[0]
# else, create a brand new interval schedule
else:
interval_schedule = IntervalSchedule()
interval_schedule.every = abs(every)
interval_schedule.period = period
interval_schedule.save()
return interval_schedule
def alert_form_save(request):
'''
Save the New Alert configurations.
'''
clinic = get_object_or_404(Clinic, id=request.POST['clinic_list'])
location = get_object_or_404(Location, id=request.POST['location_list'])
from_addr = request.POST['from_addr']
to_addr = request.POST['to_addr']
name = request.POST['name']
event_list = request.POST.getlist('event_names')
waiting_time = int(request.POST['waiting_time'])
enabled = request.POST['enabled']
alert_retry = int(request.POST['alert_retry'])
alert_interv = int(request.POST['alert_interv'])
comp_event_list = ','.join(event_list)
check_dup = AlertConfiguration.objects.filter(
clinic=clinic,
event_list=comp_event_list,
)
if check_dup:
'''
While modifying a alert rule we didn't changed the
a) Clinic
b) Event list
then we keep the existing rule by updating other fields, otherwise,
we create new alert rule instead of modifying it.
Here we modifying the existing rule.
'''
check_dup = check_dup[0]
#take old interval time.
interval_old = check_dup.alert_interv
check_dup.from_addr = from_addr
check_dup.to_addr = to_addr
check_dup.name = name
check_dup.waiting_time = waiting_time
check_dup.enabled = enabled
check_dup.alert_retry = alert_retry
check_dup.alert_interv = alert_interv
check_dup.save()
###Update the Periodic tasks interval time.###
if interval_old != alert_interv:
'If there is any change in the interval we update the periodic task.'
periodic_task = PeriodicTask.objects.filter(
args=simplejson.dumps([check_dup.id]))
if periodic_task:
#updating the new interval with existing periodic task.
periodic_task = periodic_task[0]
#Check for the new interval object associated with this time.
interval = IntervalSchedule.objects.filter(every=alert_interv,
period='minutes')
if interval:
interval = interval[0]
else:
interval = IntervalSchedule(every=alert_interv,
period='minutes')
interval.save()
periodic_task.interval = interval
periodic_task.save()
else:
'No Periodic task for this rule... create one..'
#Adding periodic task.
add_periodic_task(alert_interv, check_dup)
else:
'Adding new rule.'
alert_conf = AlertConfiguration(clinic=clinic,
from_addr=from_addr,
to_addr=to_addr,
name=name,
waiting_time=waiting_time,
enabled=enabled,
event_list=comp_event_list,
alert_retry=alert_retry,
alert_interv=alert_interv)
alert_conf.save()
#Adding new periodic task.
add_periodic_task(alert_interv, alert_conf)
return HttpResponseRedirect('/admin/signin/alertconfiguration/')