def get_cron_triggers(self, start_datetime_obj, granularity=['hours', 'minutes', 'seconds'][
1], lookahead=24 * 60, lookback=60, tostring=True):
_error = None
if isinstance(start_datetime_obj, type("")):
start_datetime_obj = datetime.strptime(start_datetime_obj, "%Y-%m-%dT%H:%M:%S")
cron_dict_str = self.get('cron_dict')
if not cron_dict_str:
cron_dict = {}
else:
try:
cron_dict = json.loads(cron_dict_str)
except:
msg = "error decoding string to json for node '%s' (%s): %s" % (self.name, self.id, cron_dict_str)
logging.getLogger('backend').error(msg)
_error = msg
cron_dict = {}
if not cron_dict:
return _error, []
try:
g = su.iter_date(start_datetime_obj, cron_dict, granularity, lookahead, lookback)
if tostring:
res = [x.isoformat() for x in g]
else:
res = [x for x in g]
except:
msg = "error building datetime generator for node '%s' (%s): %s" % (self.name, self.id, cron_dict_str)
logging.getLogger('backend').error(msg)
_error = msg
return _error, []
return _error, res
def get_iter_date(self, start_datetime_obj, granularity, lookahead=24 * 60, lookback=60):
g = su.iter_date(start_datetime_obj, json.loads(self.get('cron_dict')), granularity, lookahead, lookback)
return g
