Development: Add domain objects for standardized competencies

[rstief]

🚨 DO NOT DEPLOY TO TS1/TS2! (conflicting changelogs) 🚨

Checklist

General

• I tested all changes and their related features with all corresponding user types on a test server.
• Language: I followed the guidelines for inclusive, diversity-sensitive, and appreciative language.
• I chose a title conforming to the naming conventions for pull requests.

Server

• Important: I implemented the changes with a very good performance and prevented too many (unnecessary) database calls.
• I strictly followed the server coding and design guidelines.
• I added multiple integration tests (Spring) related to the features (with a high test coverage).
• I added pre-authorization annotations according to the guidelines and checked the course groups for all new REST Calls (security).
• I documented the Java code using JavaDoc style.

Motivation and Context

Adds the domain objects for #8001

Description

• Adds the tables, domain objects, repositories, services and resources for standardized competencies.
• Adds a BaseCompetency object from which all competencies inherit.

Steps for Testing

Run locally and see that the migration works and Artemis starts up.
Test the following endpoints with Postman:

• POST api/admin/standardized-competencies/knowledge-areas (create a knowledge area)
• POST api/admin/standardized-competencies (create a standardized competency)
• GET api/standardized-competencies/:id (get a standardized competency)
• GET api/standardized-competencies/knowledge-areas/:id (get a knowledge area)

Testserver States

Note

These badges show the state of the test servers.
Green = Currently available, Red = Currently locked

Review Progress

Performance Review

• I (as a reviewer) confirm that the server changes (in particular related to database calls) are implemented with a very good performance

Code Review

• Code Review 1
• Code Review 2

Manual Tests

• Test 1
• Test 2

Test Coverage

Server

Class/File	Line Coverage	Confirmation (assert/expect)
BaseCompetency.java	100%	✅
Competency.java	79%	✅
KnowledgeArea.java	100%	✅
Source.java	92%	✅
StandardizedCompetency.java	89%	✅
SourceRepository.java	100%	✅
KnowledgeAreaRepository.java	100%	✅
StandardizedCompetencyRepository.java	100%	✅
KnowledgeAreaService.java	100%	✅
StandardizedCompetencyService.java	100%	✅
AdminStandardizedCompetencyResource.java	100%	✅
StandardizedCompetencyResource.java	100%	✅

Summary by CodeRabbit

• New Features
  • Introduced a service for efficiently managing knowledge areas, including creation and validation processes.
• Tests
  • Added comprehensive integration tests for standardized competencies and knowledge areas, ensuring robust authorization and error handling mechanisms.

[coderabbitai]

Walkthrough

This update introduces a service and integration tests for managing and testing KnowledgeArea entities and standardized competencies within Artemis. The service facilitates creating new knowledge areas by ensuring their validity before saving them to the database. Meanwhile, the integration tests cover scenarios for creating, retrieving, and validating standardized competencies and knowledge areas, including authorization checks and error handling.

Changes

Files	Change Summary
.../service/competency/KnowledgeAreaService.java .../domain/competency/KnowledgeArea.java	Implements service for managing KnowledgeArea entities with basic attributes and relationships.
.../competency/StandardizedCompetencyIntegrationTest.java	Adds integration tests for standardized competencies and knowledge areas.

Possibly related issues

• Adaptive learning: Add standardized competencies #8001: The changes in this PR could support the management and testing of standardized competencies and knowledge areas, addressing objectives related to enabling standardized competency management for admins and allowing the import of standardized competencies from .json files.
• Adaptive Learning: Add parsing of course descriptions into competency recommendations #7723: Although the PR does not directly implement parsing course descriptions into competency recommendations, the infrastructure for managing and testing competencies and knowledge areas could indirectly support future developments in this direction.

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[milljoniaer]

Code looks good 👍

[JohannesWt]

Tested in virtual test session on test server 2 with @rstief . Everything works 👍

A rabbit, silly, under the sun, Chased his tail, thought the moon was fun. In his blunders, a lesson clear: Find joy in laughter, ever near.

[MaximilianAnzinger]

LGTM