pabloem commented on a change in pull request #15357:
URL: https://github.com/apache/beam/pull/15357#discussion_r694296637
##########
File path: sdks/python/apache_beam/io/iobase.py
##########
@@ -1573,15 +1581,28 @@ def is_bounded(self):
return True
+class _RestrictionCoder(coders.Coder):
+ def decode(self, value):
+ return _SDFBoundedSourceRestriction(SourceBundle(*pickler.loads(value)))
+
+ def encode(self, restriction):
+ return pickler.dumps((
Review comment:
okay - we're currently using pickler. does that lg?
##########
File path: sdks/python/apache_beam/io/iobase.py
##########
@@ -886,12 +888,18 @@ def get_desired_chunk_size(total_size):
def expand(self, pbegin):
if isinstance(self.source, BoundedSource):
+ coders.registry.register_coder(BoundedSource, _MemoizingPickleCoder)
display_data = self.source.display_data() or {}
display_data['source'] = self.source.__class__
+
+ def output_source(_) -> BoundedSource:
+ assert isinstance(self.source, BoundedSource)
+ return self.source
+
return (
pbegin
| Impulse()
- | core.Map(lambda _: self.source)
+ | core.Map(output_source)
Review comment:
done.
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