def output_file_for(window, shard, pane):
"""
Returns:
an OutputFile object constructed with pane, window and shard.
"""
filename = '%s/LOG-%s-%s-%03d-%s' % (
output_path, window.max_timestamp(), shard, pane.index,
pane.timing) if output_path else None
return OutputFile(
window.max_timestamp(), shard, pane.index, pane.timing, filename)
def finish_bundle(self):
for window, batch in self._batches.items():
if batch:
with self._batch_size_estimator.record_time(self._batch_size):
yield windowed_value.WindowedValue(
batch, window.max_timestamp(), (window,))
self._batches = None
self._batch_size = self._batch_size_estimator.next_batch_size()
def finish_bundle(self):
for window, batch in self._batches.items():
if batch:
with self._batch_size_estimator.record_time(self._batch_size):
yield windowed_value.WindowedValue(
batch, window.max_timestamp(), (window,))
self._batches = None
self._batch_size = self._batch_size_estimator.next_batch_size()
def process(self, element, window=DoFn.WindowParam):
self._batches[window].append(element)
if len(self._batches[window]) >= self._batch_size:
with self._batch_size_estimator.record_time(self._batch_size):
yield windowed_value.WindowedValue(
self._batches[window], window.max_timestamp(), (window,))
del self._batches[window]
self._batch_size = self._batch_size_estimator.next_batch_size()
elif len(self._batches) > self._MAX_LIVE_WINDOWS:
window, _ = sorted(
self._batches.items(),
key=lambda window_batch: len(window_batch[1]),
reverse=True)[0]
with self._batch_size_estimator.record_time(self._batch_size):
yield windowed_value.WindowedValue(
self._batches[window], window.max_timestamp(), (window,))
del self._batches[window]
self._batch_size = self._batch_size_estimator.next_batch_size()
def process(self, element, window=DoFn.WindowParam):
self._batches[window].append(element)
if len(self._batches[window]) >= self._batch_size:
with self._batch_size_estimator.record_time(self._batch_size):
yield windowed_value.WindowedValue(
self._batches[window], window.max_timestamp(), (window,))
del self._batches[window]
self._batch_size = self._batch_size_estimator.next_batch_size()
elif len(self._batches) > self._MAX_LIVE_WINDOWS:
window, _ = sorted(
self._batches.items(),
key=lambda window_batch: len(window_batch[1]),
reverse=True)[0]
with self._batch_size_estimator.record_time(self._batch_size):
yield windowed_value.WindowedValue(
self._batches[window], window.max_timestamp(), (window,))
del self._batches[window]
self._batch_size = self._batch_size_estimator.next_batch_size()
def index_path_for(window):
"""
Returns:
path to the index file containing all shard names or None if no output_path
is set
"""
if output_path:
return '%s/INDEX-%s' % (output_path, window.max_timestamp())
else:
return None