chamikaramj commented on a change in pull request #12888:
URL: https://github.com/apache/beam/pull/12888#discussion_r492976506
##########
File path: sdks/python/apache_beam/io/iobase.py
##########
@@ -992,6 +1012,43 @@ def expand(self, pcoll):
'A sink must inherit iobase.Sink, iobase.NativeSink, '
'or be a PTransform. Received : %r' % self.sink)
+ def _pubsub_write_payload(self):
+ return beam_runner_api_pb2.PubSubWritePayload(
+ topic=self.sink.full_topic,
+ id_attribute=self.sink.id_label,
+ timestamp_attribute=self.sink.timestamp_attribute)
+
+ def to_runner_api_parameter(self, context):
+ # type: (PipelineContext) -> Tuple[str, Any]
+ # Importing locally to prevent circular dependencies.
+ from apache_beam.io.gcp.pubsub import _PubSubSink
+ if isinstance(self.sink, _PubSubSink):
+ payload = self._pubsub_write_payload()
+ return (common_urns.composites.PUBSUB_WRITE.urn, payload)
+ else:
+ return super(Write, self).to_runner_api_parameter(context)
+
+ @staticmethod
+ @ptransform.PTransform.register_urn(
+ common_urns.composites.PUBSUB_WRITE.urn,
+ beam_runner_api_pb2.PubSubWritePayload)
+ def from_runner_api_parameter(ptransform, payload, unused_context):
+ # type: (Any, Any, PipelineContext) -> Write
+ if ptransform.spec.urn != common_urns.composites.PUBSUB_WRITE.urn:
+ raise ValueError(
+ 'Write transform cannot be constructed for the given proto %r',
+ ptransform)
+
+ # Importing locally to prevent circular dependencies.
+ from apache_beam.io.gcp.pubsub import _PubSubSink
+ sink = _PubSubSink(
+ topic=payload.topic,
+ id_label=payload.id_attribute,
+ with_attributes=True,
Review comment:
So, I thought that's the simplification you are working on, right ? I'm
fine with these properties being removed form source/sink if they are always
true.
This change simply updates protos (and corresponding encoding in Read/Write
transforms) to match your updates to PubSub native source/sink.
----------------------------------------------------------------
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:
[email protected]
