def _update_state():
"""Update state of a sub expr."""
data_sub = expr_data['data'][expr.fmtd_sub_expr_str]
data_list = data_sub['metrics']
if len(data_list) == 0:
data_sub['state'] = 'UNDETERMINED'
else:
period = float(expr.period)
periods = int(expr.periods)
right = t_now
left = right - period
temp_data = []
value_in_periods = []
for i in range(len(data_list) - 1, -1, -1):
if data_list[i]['timestamp'] >= left:
temp_data.append(float(data_list[i]['value']))
else:
value = calculator.calc_value(
expr.normalized_func, temp_data)
value_in_periods.append(value)
right = left
left = right - period
temp_data = []
value = calculator.calc_value(
expr.normalized_func, temp_data)
value_in_periods.append(value)
for i in range(len(value_in_periods), periods, 1):
value_in_periods.append(None)
expr_data['data'][expr.fmtd_sub_expr_str]['values'] = (
value_in_periods)
expr_data['data'][expr.fmtd_sub_expr_str]['state'] = (
calculator.compare_thresh(
value_in_periods,
expr.normalized_operator,
float(expr.threshold)))
def _update_state():
"""Update state of a sub expr."""
data_sub = expr_data['data'][expr.fmtd_sub_expr_str]
data_list = data_sub['metrics']
period = float(expr.period)
periods = int(expr.periods)
right = t_now
left = right - period
temp_data = []
value_in_periods = []
i = len(data_list) - 1
while i >= 0:
if data_list[i]['timestamp'] >= left:
temp_data.append(float(data_list[i]['value']))
else:
value = calculator.calc_value(expr.normalized_func,
temp_data)
value_in_periods.append(value)
right = left
left = right - period
temp_data = []
i += 1
i -= 1
value = calculator.calc_value(expr.normalized_func, temp_data)
value_in_periods.append(value)
for i in range(len(value_in_periods), periods, 1):
value_in_periods.append(
calculator.calc_value(expr.normalized_func, []))
expr_data['data'][expr.fmtd_sub_expr_str]['values'] = (
value_in_periods)
expr_data['data'][expr.fmtd_sub_expr_str]['state'] = (
calculator.compare_thresh(value_in_periods,
expr.normalized_operator,
float(expr.threshold)))
def test_calc_value(self):
self.assertEqual(0, calculator.calc_value('MAX', [0]))
data = []
self.assertEqual(None, calculator.calc_value('MAX', data))
random.seed(time.time())
for i in range(0, 30, 1):
data.append(random.uniform(0, 1000))
self.assertEqual(max(data), calculator.calc_value('MAX', data))
self.assertEqual(sum(data), calculator.calc_value('SUM', data))
self.assertEqual(len(data), calculator.calc_value('COUNT', data))
self.assertEqual(min(data), calculator.calc_value('MIN', data))
self.assertEqual(sum(data) / len(data),
calculator.calc_value('AVG', data))
def test_calc_value(self):
self.assertEqual(0, calculator.calc_value('MAX', [0]))
data = []
self.assertEqual(None, calculator.calc_value('MAX', data))
random.seed(time.time())
for i in range(0, 30, 1):
data.append(random.uniform(0, 1000))
self.assertEqual(max(data), calculator.calc_value('MAX', data))
self.assertEqual(sum(data), calculator.calc_value('SUM', data))
self.assertEqual(len(data), calculator.calc_value('COUNT', data))
self.assertEqual(min(data), calculator.calc_value('MIN', data))
self.assertEqual(
sum(data) / len(data), calculator.calc_value('AVG', data))
