Etienne Chauchot created BEAM-12591:
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Summary: Spark Structured Streaming runner sources should be put
back to main src folder
Key: BEAM-12591
URL: https://issues.apache.org/jira/browse/BEAM-12591
Project: Beam
Issue Type: Bug
Components: build-system, runner-spark
Reporter: Etienne Chauchot
Assignee: Etienne Chauchot
When spark 3 was introduced, *the spark structured streaming runner sources
were moved to spark/2 module*
(https://github.com/apache/beam/pull/14216/commits/9c0f6088078563ece6dc60877b0dcb320f1c9bfe)
and the build system was changed. Now spark runners are built per spark
version module (2 or 3) and the version specific sources are copied from
_spark-version/src_ to _spark-version/build/source-overrides_ and gradle source
sets are set to _main-spark src + spark-version/build/source-overrides_. The
problem is that _spark-version/src_ is outside of gradle source sets and thus
the IDE does not compile this source, that is not an issue when there is very
few classes but in the case of the spark structured streaming runner, *it is
the whole runner code that is rendered invisible to the IDE* which is
impracticable for runner development
We should just put back spark structured streaming sources to main spark
sources. This will not change the build as it is still done per spark-version
so deps will be ok.
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