rohdesamuel commented on a change in pull request #10497: [BEAM-8335] Add the
ReverseTestStream
URL: https://github.com/apache/beam/pull/10497#discussion_r386694347
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File path: sdks/python/apache_beam/runners/direct/transform_evaluator.py
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@@ -432,6 +439,45 @@ def finish_bundle(self):
self, self.bundles, [], None, {None: self._watermark})
+class PairWithTimingEvaluator(_TransformEvaluator):
+ """TransformEvaluator for the PairWithTiming transform.
+
+ This transform takes an element as an input and outputs
+ KV(element, `TimingInfo`). Where the `TimingInfo` contains both the
+ processing time timestamp and watermark.
+ """
+ def __init__(
+ self,
+ evaluation_context,
+ applied_ptransform,
+ input_committed_bundle,
+ side_inputs):
+ assert not side_inputs
+ super(PairWithTimingEvaluator, self).__init__(
+ evaluation_context,
+ applied_ptransform,
+ input_committed_bundle,
+ side_inputs)
+
+ def start_bundle(self):
+ main_output = list(self._outputs)[0]
+ self.bundle = self._evaluation_context.create_bundle(main_output)
+
+ def process_element(self, element):
+ watermark_manager = self._evaluation_context._watermark_manager
+ watermarks = watermark_manager.get_watermarks(self._applied_ptransform)
Review comment:
Done, moved to start_bundle
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