def _generate_chart_data(self, granularity, count):
counts = []
time_series_limits = time_series_generator(granularity, count)
def _compute_count(a_range):
column_start = convert_time_to_uuid(a_range[0], lowest_val=True)
# start_datetime = utc_timestamp2datetime(a_range[0])
column_finish = convert_time_to_uuid(a_range[1], lowest_val=False)
# end_datetime = utc_timestamp2datetime(a_range[1])
row_key = ymd_from_epoch(float(a_range[0]))
count = self._get_cf_logs().get_count(
row_key,
column_start=column_start,
column_finish=column_finish)
return count # to be used by `_json_cache()`
for a_range in time_series_limits:
start_datetime = utc_timestamp2datetime(a_range[0])
end_datetime = utc_timestamp2datetime(a_range[1])
# Whe shouldn't use cache for the last period
if self._cache_enabled and a_range != time_series_limits[-1]:
cache_key = "daedalus:chart:{0}-{1}".format(a_range[0], a_range[1])
count = _json_cache(cache_key,
60,
_compute_count, a_range)
else:
count = _compute_count(a_range)
counts.append((start_datetime, end_datetime, count,))
return counts
def _generate_chart_data(self, granularity, count):
counts = []
time_series_limits = time_series_generator(granularity, count)
def _compute_count(a_range):
column_start = convert_time_to_uuid(a_range[0], lowest_val=True)
# start_datetime = utc_timestamp2datetime(a_range[0])
column_finish = convert_time_to_uuid(a_range[1], lowest_val=False)
# end_datetime = utc_timestamp2datetime(a_range[1])
row_key = ymd_from_epoch(float(a_range[0]))
count = self._get_cf_logs().get_count(row_key,
column_start=column_start,
column_finish=column_finish)
return count # to be used by `_json_cache()`
for a_range in time_series_limits:
start_datetime = utc_timestamp2datetime(a_range[0])
end_datetime = utc_timestamp2datetime(a_range[1])
# Whe shouldn't use cache for the last period
if self._cache_enabled and a_range != time_series_limits[-1]:
cache_key = "daedalus:chart:{0}-{1}".format(
a_range[0], a_range[1])
count = _json_cache(cache_key, 60, _compute_count, a_range)
else:
count = _compute_count(a_range)
counts.append((
start_datetime,
end_datetime,
count,
))
return counts
def main():
d_now = datetime.datetime.now()
d_utcnow = datetime.datetime.utcnow()
d_now_tz = d_now.replace(tzinfo=pytz.utc)
d_utcnow_tz = d_utcnow.replace(tzinfo=pytz.utc)
dates = (
("d_now", d_now),
("d_now_tz", d_now_tz),
("d_utcnow", d_utcnow),
("d_utcnow_tz", d_utcnow_tz),
)
print "{0:>30}: {1}".format("TZ", os.environ.get('TZ', ''))
print "{0:>30}: {1}".format("time.time()", time.time())
print ""
for desc, date_var in dates:
timestamp = "{0}.{1:06}".format(calendar.timegm(date_var.timetuple()),
date_var.microsecond)
from_timestamp = time.gmtime(float(timestamp))
print "{0:>30}".format(desc)
print "{0:>30}: {1}".format("type()", type(date_var))
print "{0:>30}: {1}".format("str()", str(date_var))
print "{0:>30}: {1}".format("utctimetuple()", date_var.utctimetuple())
print "{0:>30}: {1}".format("calendar.timegm()",
calendar.timegm(date_var.timetuple()))
print "{0:>30}: {1}".format("microsecond", date_var.microsecond)
print "{0:>30}: {1}".format("timestamp", timestamp)
print "{0:>30}: {1}".format("from_timestamp", from_timestamp)
print "{0:>30}: {1}".format("type(from_timestamp)",
type(from_timestamp))
print "{0:>30}: {1}".format(
"datetime.utcfromtimestamp()",
datetime.datetime.utcfromtimestamp(float(timestamp)))
print ""
current_utc_str_timestamp = utc_str_timestamp()
print "utc_str_timestamp():", current_utc_str_timestamp
print " + de-serialized:", utc_timestamp2datetime(
current_utc_str_timestamp)
def main():
d_now = datetime.datetime.now()
d_utcnow = datetime.datetime.utcnow()
d_now_tz = d_now.replace(tzinfo=pytz.utc)
d_utcnow_tz = d_utcnow.replace(tzinfo=pytz.utc)
dates = (
("d_now", d_now),
("d_now_tz", d_now_tz),
("d_utcnow", d_utcnow),
("d_utcnow_tz", d_utcnow_tz),
)
print "{0:>30}: {1}".format("TZ", os.environ.get('TZ', ''))
print "{0:>30}: {1}".format("time.time()", time.time())
print ""
for desc, date_var in dates:
timestamp = "{0}.{1:06}".format(calendar.timegm(date_var.timetuple()), date_var.microsecond)
from_timestamp = time.gmtime(float(timestamp))
print "{0:>30}".format(desc)
print "{0:>30}: {1}".format("type()", type(date_var))
print "{0:>30}: {1}".format("str()", str(date_var))
print "{0:>30}: {1}".format("utctimetuple()", date_var.utctimetuple())
print "{0:>30}: {1}".format("calendar.timegm()", calendar.timegm(date_var.timetuple()))
print "{0:>30}: {1}".format("microsecond", date_var.microsecond)
print "{0:>30}: {1}".format("timestamp", timestamp)
print "{0:>30}: {1}".format("from_timestamp", from_timestamp)
print "{0:>30}: {1}".format("type(from_timestamp)", type(from_timestamp))
print "{0:>30}: {1}".format("datetime.utcfromtimestamp()",
datetime.datetime.utcfromtimestamp(float(timestamp)))
print ""
current_utc_str_timestamp = utc_str_timestamp()
print "utc_str_timestamp():", current_utc_str_timestamp
print " + de-serialized:", utc_timestamp2datetime(current_utc_str_timestamp)