[goutamadwant]

Adds Prism coverage by running four existing Managed Delta IO tests: snapshot reads, version and timestamp reads, and change-data reads.

The dedicated Gradle task builds the local Prism binary and runs these tests in LOOPBACK mode using their existing local fixtures. No new test class or cloud credentials are needed. The existing DirectRunner and Dataflow test selections are unchanged.

The Delta IO precommit workflow runs the Prism task, and the trigger file is updated to run the suite for this PR.

Fixes #38557

Testing

• Delta module build: 39 tests passed, 1 existing manual test skipped.
• :sdks:java:io:delta:prismIntegrationTest: 4 tests passed with Java 17 and the locally built Prism binary.
• :beam-test-gha:preCommit: passed.

Checklist

• Linked the associated issue.
• Added integration coverage and ran the affected module build.
• CHANGES.md is not needed because this change only adds test and CI coverage.
• This is not a large contribution requiring an ICLA.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.17%. Comparing base (a8d6afd) to head (56a26a5).
⚠️ Report is 75 commits behind head on master.

Additional details and impacted files

@@              Coverage Diff              @@
##             master   #39764       +/-   ##
=============================================
- Coverage     80.04%   58.17%   -21.88%     
- Complexity        0    13101    +13101     
=============================================
  Files           490     2523     +2033     
  Lines         82916   265755   +182839     
  Branches          0    10795    +10795     
=============================================
+ Hits          66373   154612    +88239     
- Misses        16543   105332    +88789     
- Partials          0     5811     +5811     

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[github-actions]

Assigning reviewers:

R: @ahmedabu98 for label java.
R: @liferoad for label build.

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[github-actions]

Reminder, please take a look at this pr: @ahmedabu98 @liferoad

[github-actions]

Assigning new set of reviewers because Pr has gone too long without review. If you would like to opt out of this review, comment assign to next reviewer:

R: @Abacn for label java.
R: @damccorm for label build.

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[damccorm]

R: @chamikaramj

[github-actions]

Stopping reviewer notifications for this pull request: review requested by someone other than the bot, ceding control. If you'd like to restart, comment assign set of reviewers

[chamikaramj]

Thanks!

[chamikaramj]

Instead of adding new tests, can we update the config to run existing tests with the Prism runner ?

[goutamadwant]

reused the four existing Managed IO tests and removed this new test class @chamikaramj

[chamikaramj]

Please also do a small update to the trigger file so that the test suite get triggered for this PR.
https://github.com/apache/beam/blob/master/.github/trigger_files/beam_PreCommit_Java_Delta_IO_Direct.json

[goutamadwant]

done @chamikaramj the Delta suite ran and passed, including the Prism step.

[chamikaramj]

waiting on author

[goutamadwant]

@chamikaramj review fixes are pushed. can you PTAL when you get a chance? thanks!

[goutamadwant]

@chamikaramj also could you rerun the failed Dataflow Examples check? WordCountIT hit a GCS read timeout while staging a JAR. unrelated to my change and I don't have access for it.