| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| """Module to control how Interactive Beam captures data from sources for |
| deterministic replayable PCollection evaluation and pipeline runs. |
| |
| For internal use only; no backwards-compatibility guarantees. |
| """ |
| |
| # pytype: skip-file |
| |
| from __future__ import absolute_import |
| |
| import logging |
| from datetime import timedelta |
| |
| from apache_beam.io.gcp.pubsub import ReadFromPubSub |
| from apache_beam.runners.interactive import interactive_environment as ie |
| from apache_beam.runners.interactive.options import capture_limiters |
| |
| _LOGGER = logging.getLogger(__name__) |
| |
| |
| class CaptureControl(object): |
| """Options and their utilities that controls how Interactive Beam captures |
| deterministic replayable data from sources.""" |
| def __init__(self): |
| self._enable_capture_replay = True |
| self._capturable_sources = { |
| ReadFromPubSub, |
| } # yapf: disable |
| self._capture_duration = timedelta(seconds=60) |
| self._capture_size_limit = 1e9 |
| self._test_limiters = None |
| |
| def limiters(self): |
| # type: () -> List[capture_limiters.Limiter] |
| if self._test_limiters: |
| return self._test_limiters |
| return [ |
| capture_limiters.SizeLimiter(self._capture_size_limit), |
| capture_limiters.DurationLimiter(self._capture_duration) |
| ] |
| |
| def set_limiters_for_test(self, limiters): |
| # type: (List[capture_limiters.Limiter]) -> None |
| self._test_limiters = limiters |
| |
| |
| def evict_captured_data(pipeline=None): |
| """Evicts all deterministic replayable data that have been captured by |
| Interactive Beam for the given pipeline. If no pipeline is specified, evicts |
| for all user defined pipelines. |
| |
| In future PCollection evaluation/visualization and pipeline |
| runs, Interactive Beam will capture fresh data.""" |
| if ie.current_env().options.enable_capture_replay: |
| _LOGGER.info( |
| 'You have requested Interactive Beam to evict all recorded' |
| 'data that could be deterministically replayed among multiple ' |
| 'pipeline runs.') |
| ie.current_env().cleanup(pipeline) |