NIFI-12700: refactored PutKudu to optimize memory handling for AUTO_F…

[emiliosetiadarma]

…LUSH_SYNC flush mode (unbatched flush)

• Introduced PutKuduResult to store results of processing FlowFiles in PutKudu.
• Introduced two implementations for PutKuduResult, namely AutoFlushSyncPutKuduResult and StandardPutKuduResult. AutoFlushSyncPutKuduResult includes optimizations considering it's an un-batched flush. StandardPutKuduResult encapsulates all the logic that was used to store the results for processing FlowFiles in the existing implementation.
• Refactored AbstractKuduProcessor to separate out the closeKuduSession and flushKuduSession functionality.
• Refactored PutKudu to utilize the new PutKuduResult class.

Summary

NIFI-12700

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  • JDK 21

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[turcsanyip]

Will review...

[mattyb149]

Reviewing...

[mattyb149]

Verified the requested changes were made. +1 LGTM, thanks for the improvement! Merging to main