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Refactor: apply best practices and coding guidelines globally #2209

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merged 20 commits into from
Jun 7, 2023

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@sfeilmeier sfeilmeier commented Jun 2, 2023

This PR applies best practices and coding guidelines (https://openems.github.io/openems.io/openems/latest/contribute/coding-guidelines.html) globally in Java, e.g.

  • Use separate interface and impl for OpenEMS Components
  • Move ChannelIds to interface
  • Rename Component files equal to Factory-ID (makes Ctrl+R in Eclipse IDE much more convenient to use)
  • Reduce variable scope; use private wherever possible (e.g. for the activate()-method)
  • Sort variables in code (from public static final to private; @reference to constructor to @activate, @Modifed, @deactivate)
  • Use short JavaDoc for single-line comments
  • Use @EventTopics
  • Always implement @deactivate
  • Remove package-info.java if not necessary (i.e. reduce package scope)
  • Add (at least simple) JUnit tests
  • Update BND Bundle templates
  • Add and apply Checkstyle VisibilityModifierCheck (see https://checkstyle.sourceforge.io/apidocs/com/puppycrawl/tools/checkstyle/checks/design/VisibilityModifierCheck.html)

The PR contains strictly NO LOGIC CHANGES.

@sfeilmeier sfeilmeier marked this pull request as ready for review June 7, 2023 20:53
@sfeilmeier sfeilmeier merged commit 2c36e41 into develop Jun 7, 2023
@sfeilmeier sfeilmeier deleted the feature/global-best-practices branch June 7, 2023 21:12
nlamarti pushed a commit to nlamarti/openems that referenced this pull request Aug 4, 2023
…S#2209)

The PR contains strictly **NO LOGIC CHANGES**, but applies best practices and coding guidelines (https://openems.github.io/openems.io/openems/latest/contribute/coding-guidelines.html) globally in OpenEMS Edge/Backend, e.g.

- Use separate Interface and Implementation files for OpenEMS Edge Components
- Move ChannelIds to Interfaces ("Natures" - https://openems.github.io/openems.io/openems/latest/coreconcepts.html#_nature)
- Rename Component files equal to Factory-ID (makes Ctrl+R in Eclipse IDE much more convenient to use)
- Reduce variable scope; use `private` wherever possible (e.g. for the `activate()`-method). This is enforced by adding and applying Checkstyle `VisibilityModifierCheck` (see https://checkstyle.sourceforge.io/apidocs/com/puppycrawl/tools/checkstyle/checks/design/VisibilityModifierCheck.html)
- Sort variables in code (from `public static final` to `private`; @reference to constructor to @activate, @Modifed, @deactivate)
- Use short JavaDoc for single-line comments
- Use `@EventTopics`
- Always implement @deactivate
- Remove `package-info.java` if not necessary (i.e. reduce package scope)
- Add (at least simple) JUnit tests
- Update BND Bundle templates
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