def assign(self, context):
timestamp = context.timestamp
start = timestamp - (timestamp - self.offset) % self.period
return [IntervalWindow(Timestamp.of(s), Timestamp.of(s) + self.size)
for s in range(start, start - self.size, -self.period)]
def __init__(self, timestamp, element=None): self.timestamp = Timestamp.of(timestamp) self.element = element
def __init__(self, value, timestamp): self.value = value self.timestamp = Timestamp.of(timestamp)
def __init__(self, size, period, offset=0):
if size <= 0:
raise ValueError('The size parameter must be strictly positive.')
self.size = Duration.of(size)
self.period = Duration.of(period)
self.offset = Timestamp.of(offset) % size
def __init__(self, end): self.end = Timestamp.of(end)
def __init__(self, start, end): super(IntervalWindow, self).__init__(end) self.start = Timestamp.of(start)
def from_runner_api_parameter(fn_parameter, unused_context):
return SlidingWindows(
size=Duration(micros=fn_parameter['size']),
offset=Timestamp(micros=fn_parameter['offset']),
period=Duration(micros=fn_parameter['period']))
def test_timestamps(self):
wv = windowed_value.WindowedValue(None, 3, ())
self.assertEqual(wv.timestamp, Timestamp.of(3))
self.assertTrue(wv.timestamp is wv.timestamp)
self.assertEqual(windowed_value.WindowedValue(None, -2.5, ()).timestamp,
Timestamp.of(-2.5))
def __init__(self, size, period, offset=0):
if size <= 0:
raise ValueError('The size parameter must be strictly positive.')
self.size = Duration.of(size)
self.period = Duration.of(period)
self.offset = Timestamp.of(offset) % period
def __init__(self, value, timestamp): self.value = value self.timestamp = Timestamp.of(timestamp)
def __init__(self, start, end): super(IntervalWindow, self).__init__(end) self.start = Timestamp.of(start)
def __init__(self, end): self.end = Timestamp.of(end)
def __init__(self, timestamp, element=None): self.timestamp = Timestamp.of(timestamp) self.element = element
