cshuo opened a new pull request, #18477:
URL: https://github.com/apache/hudi/pull/18477
…ite table service handlers
### Describe the issue this Pull Request addresses
The Flink compaction/clean pipeline currently exposes data-table and
metadata-table handler management directly in several operators. This spreads
the same dual-table branching logic across plan, compact, commit, and clean
stages.
This PR hides those table-specific details behind composite table service
handlers so the Flink operators only depend on a single handler abstraction,
with no intended behavior change.
### Summary and Changelog
- Add `CompositeTableServiceHandler` as the shared base for dual-table
service composition.
- Add composite handlers for compaction plan, compaction execution,
compaction commit, and clean.
- Update `CompactionPlanOperator`, `CompactOperator`,
`CompactionCommitSink`, and `CleanFunction` to use the composite handlers only.
### Impact
- **Functional impact**: No intended behavior change.
- **Maintainability**: Removes duplicated dual-table branching from Flink
operators.
- **Extensibility**: Makes future table-service changes easier to localize.
### Risk Level
low
<!-- Accepted values: none, low, medium or high. Other than `none`, explain
the risk.
If medium or high, explain what verification was done to mitigate the
risks. -->
### Documentation Update
<!-- Describe any necessary documentation update if there is any new
feature, config, or user-facing change. If not, put "none".
- The config description must be updated if new configs are added or the
default value of the configs are changed.
- Any new feature or user-facing change requires updating the Hudi website.
Please follow the
[instruction](https://hudi.apache.org/contribute/developer-setup#website)
to make changes to the website. -->
### Contributor's checklist
- [ ] Read through [contributor's
guide](https://hudi.apache.org/contribute/how-to-contribute)
- [ ] Enough context is provided in the sections above
- [ ] Adequate tests were added if applicable
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