NIFI-13590 Refactor components in standard-processors bundle using current API methods

[EndzeitBegins]

Summary

NIFI-13590

Makes use of the new APIs introduced for working with AllowableValue, e.g. in NIFI-12573 or NIFI-12452.
Makes use of newer Java APIs for declaring relationships and properties.
Applies some minor improvements recommended by IntelliJ available in newer Java versions.

Tracking

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Issue Tracking

• Apache NiFi Jira issue created

Pull Request Tracking

• Pull Request title starts with Apache NiFi Jira issue number, such as NIFI-00000
• Pull Request commit message starts with Apache NiFi Jira issue number, as such NIFI-00000

Pull Request Formatting

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Build

• Build completed using mvn clean install -P contrib-check
  • JDK 21

Licensing

• New dependencies are compatible with the Apache License 2.0 according to the License Policy
• New dependencies are documented in applicable LICENSE and NOTICE files

Documentation

• Documentation formatting appears as expected in rendered files

[exceptionfactory]

Thanks for working on these improvements @EndzeitBegins. The changes look good in general, but the main recommendation is to keep one property descriptor and one relationship per line. This makes the list much easier to read, and easier to maintain when introducing changes. I noted a number of specific places for this, but did not note it on every Processor, although it applies to the majority of the changes.

[EndzeitBegins]

Thank you for the quick review @exceptionfactory.
I've adjusted the property declarations accordingly.

Edit: Just noticed the other recommendations, will address those in another commit.

[EndzeitBegins]

I've moved some more property declarations to static fields and removed the PROP_ prefix of serval properties as you've suggested @exceptionfactory.
I'd appreciate another review.

[exceptionfactory]

Thanks for making the formatting adjustments, and for bringing these components up to current implementation standards @EndzeitBegins! +1 merging