[Rule based auto tagging] Add in-memory rule processing service

[kaushalmahi12]

Description

This change adds the service class for managing in-memory view of rules and evaluates the target label for incoming search requests.

Do not review the following files since they are part of other PRs

• Rule.java PR
• build.gradle, Everything under storage package and corresponding UTs PR

Related Issues

#16797 (comment)

Check List

• Functionality includes testing.
• API changes companion pull request created, if applicable.
• Public documentation issue/PR created, if applicable.

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[github-actions]

❌ Gradle check result for 09e3013: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❌ Gradle check result for 3bea59a: FAILURE

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[jainankitk]

@kaushalmahi12 - Precommit failing due to license error:

Execution failed for task ':plugins:workload-management:dependencyLicenses'.
> Licences dir /home/runner/work/OpenSearch/OpenSearch/plugins/workload-management/licenses does not exist, but there are dependencies: commons-collections4-4.4.jar

[sgup432]

LGTM overall

[github-actions]

❌ Gradle check result for e502a38:

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[jainankitk]

Thanks @kaushalmahi12 for this PR. Mostly looks good, have few minor comments

[github-actions]

❌ Gradle check result for cfeaace: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❌ Gradle check result for 512b0ca: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

✅ Gradle check result for 8a9aeb8: SUCCESS

[codecov]

Codecov Report

Attention: Patch coverage is 87.32394% with 9 lines in your changes missing coverage. Please review.

Project coverage is 72.39%. Comparing base (15d27a1) to head (8a9aeb8).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
...wlm/rule/attribute_extractor/IndicesExtractor.java	0.00%	5 Missing ⚠️
...opensearch/rule/InMemoryRuleProcessingService.java	94.87%	0 Missing and 2 partials ⚠️
...earch/rule/storage/AttributeValueStoreFactory.java	83.33%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #17365      +/-   ##
============================================
- Coverage     72.43%   72.39%   -0.05%     
+ Complexity    66065    66027      -38     
============================================
  Files          5351     5355       +4     
  Lines        306220   306338     +118     
  Branches      44376    44386      +10     
============================================
- Hits         221812   221759      -53     
- Misses        66272    66445     +173     
+ Partials      18136    18134       -2     

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