OAUT-4. Refactoring to Reduce Class Complexity and Increase Abstraction.

[seregamazur]

Summary:
This ticket aims to refactor the Java Spring project to reduce class complexity and enhance abstraction. The goal is to improve code maintainability, readability, and reusability by applying design principles that promote a more modular and cohesive codebase.

Details:

• Analyze the existing codebase and identify classes with high complexity or excessive responsibilities.
• Identify common functionality or patterns within classes that can be abstracted into reusable components or base classes.
• Extract shared functionality into abstract classes or interfaces to promote code reuse and modularity.
• Encapsulate specific logic into separate classes or methods, adhering to the Single Responsibility Principle.
• Review inheritance hierarchy and eliminate unnecessary levels of inheritance to simplify class relationships.
• Consider using composition over inheritance where appropriate to increase flexibility and modularity.
• Evaluate and refactor long methods or methods with excessive parameters, breaking them down into smaller, more focused methods.
• Update relevant unit tests and ensure they reflect the changes made during the refactoring process.
• Validate that the refactored code maintains the desired functionality and behavior through comprehensive testing.
• Document the refactored code, including the rationale behind the changes made, to aid future maintenance and collaboration.