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ASF GitHub Bot logged work on BEAM-8537: ---------------------------------------- Author: ASF GitHub Bot Created on: 10/Feb/20 19:43 Start Date: 10/Feb/20 19:43 Worklog Time Spent: 10m Work Description: chadrik commented on pull request #10802: [BEAM-8537] Move wrappers of RestrictionTracker out of iobase URL: https://github.com/apache/beam/pull/10802#discussion_r377276494 ########## File path: sdks/python/apache_beam/runners/sdf_utils.py ########## @@ -0,0 +1,173 @@ +# +# 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. +# + +# pytype: skip-file + +"""Common utility class to help SDK harness to execute an SDF. """ + +from __future__ import absolute_import +from __future__ import division + +import logging +import threading +from builtins import object +from collections import namedtuple +from typing import TYPE_CHECKING +from typing import Any +from typing import Optional +from typing import Tuple + +from apache_beam.utils import timestamp + +if TYPE_CHECKING: + from apache_beam.io.iobase import RestrictionTracker + from apache_beam.utils.timestamp import Timestamp + +_LOGGER = logging.getLogger(__name__) + + +SplitResultPrimary = namedtuple( + 'SplitResultPrimary', 'windowed_value') + +SplitResultResidual = namedtuple( + 'SplitResultResidual', + 'windowed_value current_watermark deferred_timestamp') Review comment: You can do so safely. `typing` is a requirement for python versions less than 3.8 (and there's a [PR to adjust that to 3.5](https://github.com/apache/beam/pull/10821)). We're already importing typing in numerous places throughout the code. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 384684) Time Spent: 11.5h (was: 11h 20m) > Provide WatermarkEstimatorProvider for different types of WatermarkEstimator > ---------------------------------------------------------------------------- > > Key: BEAM-8537 > URL: https://issues.apache.org/jira/browse/BEAM-8537 > Project: Beam > Issue Type: Improvement > Components: sdk-py-core, sdk-py-harness > Reporter: Boyuan Zhang > Assignee: Boyuan Zhang > Priority: Major > Time Spent: 11.5h > Remaining Estimate: 0h > > This is a follow up for in-progress PR: > https://github.com/apache/beam/pull/9794. > Current implementation in PR9794 provides a default implementation of > WatermarkEstimator. For further work, we want to let WatermarkEstimator to be > a pure Interface. We'll provide a WatermarkEstimatorProvider to be able to > create a custom WatermarkEstimator per windowed value. It should be similar > to how we track restriction for SDF: > WatermarkEstimator <---> RestrictionTracker > WatermarkEstimatorProvider <---> RestrictionTrackerProvider > WatermarkEstimatorParam <---> RestrictionDoFnParam -- This message was sent by Atlassian Jira (v8.3.4#803005)