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…s (replacing ComponentTreeRewriter), extracted the processTreeWithRules method.
… class to extract column layout management functionality from ColumnControlRewriteRule
…method from ColumnControlRewriteRule to the new helper class
…ism approach in the ComponentRewriteRuleServiceImpl class by adding the NodeOrderInfo helper class:
Details of changes i have made.
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Refactor Component Handling with Design Patterns to Improve Maintainability
Related Issue
No specific issue - This PR is a proactive code quality improvement.
Motivation and Context
The AEM Modernize Tools code contained several instances of complex conditional logic, code duplication, and large classes with multiple responsibilities. This refactoring applies well-established design patterns to improve code maintainability, readability, and extensibility without changing functionality.
How Has This Been Tested?
• All existing tests have been maintained and updated to reflect the refactored code
• Added new tests for the extracted helper classes
• Verified that the refactored code produces the same output as the original code for representative test cases
• Ran all existing integration tests to ensure backward compatibility
Types of changes
New feature (non-breaking change which adds functionality)
o Added helper classes to improve code organization
o Implemented design patterns to reduce complexity
o Enhanced error handling with better context messages
Key Changes
o Created ColumnLayoutHelper to separate column management logic from rule application
o Improved separation of concerns in ColumnControlRewriteRule
o Added NodeOrderInfo class hierarchy to handle different node ordering scenarios
o Replaced complex conditional logic with polymorphic behavior
o Extracted hasMatchingResourceType method to simplify matching logic
o Enhanced readability and testability of complex conditions
o Added more specific error messages with contextual information
o Enhanced error recovery during batch operations
Checklist:
• I have signed the Adobe Open Source CLA
• My code follows the code style of this project
• My change requires a change to the documentation
• I have updated the documentation accordingly
• I have read the CONTRIBUTING document
• I have added tests to cover my changes
• All new and existing tests passed
Benefits
This refactoring provides several key benefits:
• Reduced complexity through better separation of concerns
• Improved maintainability with smaller, focused classes
• Enhanced testability with clearer responsibility boundaries
• Better error handling with more specific error messages
• Maintained full backward compatibility with existing API