Ahenk/usr/share/ahenk/base/scheduler/custom/custom_scheduler.py

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2020-04-06 18:10:41 +03:00
#!/usr/bin/python3
# -*- coding: utf-8 -*-
# Author: İsmail BAŞARAN <ismail.basaran@tubitak.gov.tr> <basaran.ismaill@gmail.com>
import time
from datetime import datetime, timedelta
from base.scheduler.base_scheduler import BaseScheduler
from base.scheduler.custom.schedule_job import ScheduleTaskJob
from base.scheduler.custom.scheduledb import ScheduleTaskDB
from base.scope import Scope
class CustomScheduler(BaseScheduler):
def __init__(self):
self.events = []
self.keep_run = True
self.logger = Scope.get_instance().get_logger()
self.scheduledb = ScheduleTaskDB()
def initialize(self):
self.scheduledb.initialize()
tasks = self.scheduledb.load()
if tasks:
for task in tasks:
self.add_job(ScheduleTaskJob(task))
def add_job(self, job):
self.events.append(job)
def save_and_add_job(self, task):
try:
self.logger.debug('Saving scheduled task to database...')
self.scheduledb.save(task)
self.logger.debug('Adding scheduled task to events...')
self.events.append(ScheduleTaskJob(task))
except Exception as e:
self.logger.error(
'A problem occurred while saving and adding job. Error Message: {0}'.format(str(e)))
# unused
def remove_job(self, task_id):
for event in self.events:
if event.task.get_id() == task_id:
self.scheduledb.delete(task_id)
self.logger.debug('Task was deleted from scheduled tasks table')
self.events.remove(event)
self.logger.debug('Task was removed from events')
# unused
def remove_job_via_task_id(self, task_id):
for event in self.events:
if event.task.get_id() == task_id:
self.scheduledb.delete(event.task)
self.events.remove(event)
def stop(self):
self.keep_run = False
def list_schedule_tasks(self):
return self.scheduledb.load()
def run(self):
t = datetime(*datetime.now().timetuple()[:5])
while 1 and self.keep_run:
if self.events is not None and len(self.events) > 0:
for e in self.events:
e.check(t)
t += timedelta(minutes=1)
if datetime.now() < t:
sl = (t - datetime.now()).seconds
time.sleep(sl)