[NIFI-9806] Introduce base classes in c2/versioned that combine extension & configurable component types

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.16.0
• Assignee: Bryan Bende
• Reporter: Bryan Bende
• Created: 17/Mar/22 13:35
• Updated: 21/Mar/22 01:21
• Resolved: 18/Mar/22 12:43

Description

Currently we have the following setup in c2 component manifest model:

ExtensionComponent - base class where type and bundle info exist

ConfigurableComponentDefinition - interface for property related methods

ProcessorDefinition extends ExtensionComponent implements ConfigurableComponentDefinition

This makes it hard to write generic code for a configurable extension, meaning a component that has type/bundle info AND configurable properties.

If you want to declare a generic type you have to do something like:

T extends ExtensionComponent & ConfigurableComponentDefinition

We can improve this by introducing an abstract class that extends ExtensionComponent and implements ConfigurableComponentDefintiion, then make the definitions for processor, controller service, and reporting task extend this new class.

A similar scenario exists in the Versioned component model.

Issue Links

• links to: GitHub Pull Request #5875