[fix][fn] Prevent create state table from API calls for non-exists instances

[freeznet]

Fixes #22108

Main Issue: #xyz

PIP: #xyz

Motivation

Before #21597, The implementation of getStateStore for BKStateStoreProviderImpl will be called once by JavaInstanceRunnable to create the stream table once the instance gets started. But after #21597, the getStateStore will be called via the putstate and getstate APIs without any check, this will cause the creation of a stream table for non-existent functions and connectors.

Modifications

• add function instance check before getStateStore

Verifying this change

• Make sure that the change passes the CI checks.

(Please pick either of the following options)

This change is a trivial rework / code cleanup without any test coverage.

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This change is already covered by existing tests, such as (please describe tests).

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This change added tests and can be verified as follows:

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• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

Does this pull request potentially affect one of the following parts:

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• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

Documentation

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Matching PR in forked repository

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 62.50000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 73.69%. Comparing base (5a614e9) to head (b885bba).
Report is 3 commits behind head on master.

Additional details and impacted files

@@              Coverage Diff              @@
##             master   #22107       +/-   ##
=============================================
+ Coverage     37.02%   73.69%   +36.66%     
- Complexity    12201    32040    +19839     
=============================================
  Files          1734     1874      +140     
  Lines        132277   139362     +7085     
  Branches      14480    15281      +801     
=============================================
+ Hits          48974   102700    +53726     
+ Misses        76823    28768    -48055     
- Partials       6480     7894     +1414     

Flag	Coverage Δ
inttests	24.67% <0.00%> (-0.13%)	⬇️
systests	24.40% <62.50%> (-0.03%)	⬇️
unittests	72.95% <0.00%> (+40.97%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...ulsar/functions/worker/rest/api/ComponentImpl.java	48.39% <62.50%> (+26.20%)	⬆️

... and 1444 files with indirect coverage changes