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Copy pathscheduled_task_verification_framework.py
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195 lines (141 loc) · 6.5 KB
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import os
from time import sleep, time
from functools import wraps
from threading import RLock, Thread
from thread import interrupt_main
from logging import StreamHandler, handlers, getLogger, INFO, Formatter
if(os.path.isdir(os.path.join(os.path.dirname(__file__), "log")) == False):
os.mkdir(os.path.join(os.path.dirname(__file__), "log"))
stvf_handler = handlers.TimedRotatingFileHandler(os.path.join(os.path.dirname(
__file__), "log", "scheduled_task_verification_framework.log"), when='D', interval=1, backupCount=365*10*3)
stvf_handler.setFormatter(Formatter(
"%(asctime)s [%(levelname)s] thread(%(thread)d-%(threadName)s) %(pathname)s : %(module)s - %(funcName)s\n%(message)s\n"))
logger = getLogger(__file__)
logger.setLevel(INFO)
logger.addHandler(stvf_handler)
logger.addHandler(StreamHandler())
class status_enum(object):
not_exist = None
initial = 0
running = 1
done = 2
class scheduler_task_manager(object):
def __init__(self):
global logger
self.logger = logger
self.status_flag_dict = {}
self.status_flag_dict_rlock = RLock()
self.cronTask_run_time_table_dict = {}
self.if_occurred_error = False
self.change_error_flag_rlock = RLock()
def _add_role(self, name, check_run_func):
self.status_flag_dict_rlock.acquire()
if(self.status_flag_dict.get(name) == None):
self.status_flag_dict[name] = status_enum.initial
self.cronTask_run_time_table_dict[name] = check_run_func
self.status_flag_dict_rlock.release()
else:
self.occurring_error()
self.status_flag_dict_rlock.release()
self.logger.error("Already has role named [%s]" % name)
raise NameError("Already has role named [%s]" % name)
def _check_role_status(self, name):
self.status_flag_dict_rlock.acquire()
if(self.status_flag_dict.get(name) == None):
ret = status_enum.not_exist
else:
ret = self.status_flag_dict[name]
self.status_flag_dict_rlock.release()
return ret
def _if_task_should_be_executed(self, name):
return self.cronTask_run_time_table_dict[name]()
def change_role_status(self, name, status):
self.status_flag_dict_rlock.acquire()
if(self.status_flag_dict.get(name) == None):
self.logger.error("Not found role named [%s]" % name)
ret = False
else:
self.status_flag_dict[name] = status
ret = True
self.status_flag_dict_rlock.release()
return ret
def _if_error(self):
self.change_error_flag_rlock.acquire()
ret = self.if_occurred_error
self.change_error_flag_rlock.release()
return ret
def occurring_error(self):
self.change_error_flag_rlock.acquire()
self.if_occurred_error = True
self.change_error_flag_rlock.release()
def monitor(self, intervene_func, timeout = 60, args = None):
if(self._if_error()):
self.logger.error("Error detected in monitor")
self.logger.info("Exiting with error !")
exit()
start_sec = time()
self.status_flag_dict_rlock.acquire()
unready_role_list = self.status_flag_dict.keys()
self.status_flag_dict_rlock.release()
while (unready_role_list != []):
_tmp_list = []
for name in unready_role_list:
role_status = self._check_role_status(name)
if(role_status == status_enum.initial):
if(self._if_task_should_be_executed(name) == True):
# Current role status is "initial", if the task of this role should be executed at this time point,
# its status will be changed from "initial" to "running" instead of staying at "initial" for a long time.
if(time() <= start_sec + timeout):
_tmp_list.append(name)
else:
self.occurring_error()
self.logger.error("[%s] The task has not started after the time limit." % name)
self.logger.info("Exiting with error !")
exit()
else:
continue
elif(role_status == status_enum.running):
if(time() <= start_sec + timeout * 2):
_tmp_list.append(name)
else:
self.occurring_error()
self.logger.error("[%s] running timeout - %ds." % (name, timeout*10))
self.logger.info("Exiting with error !")
exit()
elif(role_status == status_enum.done):
self.change_role_status(name, status_enum.initial)
continue
elif(role_status == status_enum.not_exist):
self.occurring_error()
self.logger.error("[%s] does not exist.")
self.logger.info("Exiting with error !")
exit()
unready_role_list = _tmp_list
sleep(3)
return intervene_func() if args == None else intervene_func(*args)
def is_cronTask(self, name, task_scheduled_run_at):
if(self._if_error()):
self.logger.error("Error detected. name : [%s]" % name)
self.logger.info("Exiting with error !")
exit()
else:
self._add_role(name, task_scheduled_run_at)
def cronTask_inner(func):
@wraps(func)
def new_func(*args, **argv):
if(self._check_role_status(name) != status_enum.initial):
self.occurring_error()
self.logger.error("Check out the status of [%s] is not initial" % name)
self.logger.info("Exiting with error !")
exit()
else:
self.change_role_status(name, status_enum.running)
st = time()
self.logger.info("Task [%s] started." % name)
ret = func(*args, **argv)
self.logger.info("Task [%s] ended." % name)
self.logger.info("Use time %f s.\n" % (time()-st) )
self.change_role_status(name, status_enum.done)
return ret
return new_func
return cronTask_inner