Add export options validator

[inv-jishnu]

Description

I have added the export options validator and a related exception

Related issues and/or PRs

NA

Changes made

I have added the export options validator and a related exception

Checklist

The following is a best-effort checklist. If any items in this checklist are not applicable to this PR or are dependent on other, unmerged PRs, please still mark the checkboxes after you have read and understood each item.

• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation to reflect the changes.
• Any remaining open issues linked to this PR are documented and up-to-date (Jira, GitHub, etc.).
• Tests (unit, integration, etc.) have been added for the changes.
• My changes generate no new warnings.
• Any dependent changes in other PRs have been merged and published.

Additional notes (optional)

Road map to merge remaining data loader core files. Current status

• General

  • Add ScalarDB Dao and related files - Add ScalarDB Dao and related files  #2417
  • TableMetadataService(partially replaced by ConsensusUtils): Add table metadata service #2434

• Export

  • Export options and validations: Add export options validator #2435
  • ProducerTasks: 1 PR incoming

• Import

  • Dto classes and utilities: 1 PR incoming
  • Import processor and task code: 2-3 PRs incoming
  • Code for Import transaction batch and data chunk import: 1 PR Incoming
  • ControlFile related Dtos: 1 PR incoming
  • Import logger: 1 PR incoming
  • Import Manager: 1 PR incoming

Release notes

NA

[komamitsu]

LGTM! 👍

[brfrn169]

Sorry, why are you only checking the first column?

[ypeckstadt]

Jishnu is off for a bit so I took over this task and updated the code. I have fixed the validation and completely rewrote the unit tests to cover all scenarios.

• For the partition key(s) making sure all keys are provided and in order
• For clustering keys, make sure the order or partial order is correct. (full key A,B,C -->. so you can call with (A), (A,B), (A,B,C))

This fix/problem exposes a limitation in the current data loader where you can only call the data loader like this

./data-loader export -pk <KEY=VALUE>. This will be fixed so you can do <KEY=VALUE>,<KEY=VALUE>. This code is coming with the next PR so it will already be fixed. But just FYI.

@inv-jishnu As mentioned, make sure to update the CLI arguments for export in the next PR to protected List<ColumnKeyValue> partitionKeyValues;

[brfrn169]

LGTM! Thank you!

[Torch3333]

LGTM, thank you!