Code Smells: Multiple Components Need Refactoring for Better Maintainability and Code Quality
Maintainers usually reply within 1 day
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 35/100
Research direction
Start by locating ImportOrderer.scanImports, CommandLineOptionsParser.parseRange, and JavaCommentsHelper.rewrite, then read their surrounding callers and existing tests. Treat each method as a separate refactoring area and run the existing test suite before and after changes. Done means improved organization and readability with no functional or API changes and all tests passing.
Written by the indexing model from the issue text.
Description
Description
Several code quality issues that would benefit from refactoring have been identified in the codebase. These issues impact maintainability and code readability.
Areas Needing Attention
1. Complex Method in ImportOrderer
Location: com.google.googlejavaformat.java.ImportOrderer.scanImports
Type: Implementation Smell
Problem: Complex Method (Cyclomatic complexity of 15)
Current Issues:
- Multiple responsibilities mixed in single method
- High cyclomatic complexity makes code hard to understand
- Difficult to maintain and test
- Deep nesting levels
Suggested Changes:
- Extract import scanning logic into separate methods
- Create helper class for related data
- Split complex logic into smaller, focused methods
- Improve code organization with clear responsibilities
2. Magic Numbers in CommandLineOptionsParser
Location: com.google.googlejavaformat.java.CommandLineOptionsParser.parseRange
Type: Implementation Smell
Problem: Magic Number, Missing Proper Default Case
Current Issues:
- Usage of magic numbers (1, 2)
- Missing default case in switch statement
- Implicit meaning of numbers reduces readability
- Poor error handling
Suggested Changes:
- Introduce named constants for numeric values
- Add proper default case handling
- Improve error messaging
- Enhance code readability and maintainability
3. Long Statement in JavaCommentsHelper
Location: com.google.googlejavaformat.java.JavaCommentsHelper.rewrite
Type: Implementation Smell
Problem: Long Statement
Current Issues:
- Complex nested logic in single statement
- Multiple responsibilities combined
- Difficult to maintain and test
- Poor code organization
Suggested Changes:
- Extract methods for different responsibilities
- Improve method organization
- Enhance readability
- Better separation of concerns
Expected Improvements
- Better code readability
- Easier maintenance
- Improved testability
- Clearer code organization
- Better separation of concerns
Requirements
- No functional changes should be introduced
- All tests must pass
- Follow project coding standards
- Maintain backward compatibility
- Changes should be purely refactoring-focused
Next Steps
- Review proposed changes
- Evaluate impact on codebase
- Consider integration strategy
- Plan for pull request submission
- Address any concerns raised by maintainers
Additional Notes
- All changes will follow project's code style guidelines
- Focus is on improving code quality metrics
- No API changes planned
- Will maintain existing behavior
/label refactoring code-quality implementation-smells
- Dominant language
- Java
- Stars
- 6.2k
- Forks
- 936
- Avg merge
- 6m
- Merged PRs (30d)
- 3
Getting set up
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
More from google/google-java-format
-
Difficulty 2/5 1-3 hours Newbie friendliness 72/100
google/google-java-format#1094 · 1 comment ·
Maintainers usually reply within 1 day
-
Difficulty 5/5 Over a week Newbie friendliness 15/100
google/google-java-format#1450 · 1 reaction ·
Maintainers usually reply within 1 day
-
Difficulty 4/5 3-5 days Newbie friendliness 55/100
google/google-java-format#1439 · 1 comment ·
Maintainers usually reply within 1 day
-
Difficulty 3/5 1-2 days Newbie friendliness 62/100
google/google-java-format#1436 · 2 comments ·
Maintainers usually reply within 1 day
-
Difficulty 3/5 1-2 days Newbie friendliness 48/100
google/google-java-format#1428 · 4 comments ·
Maintainers usually reply within 1 day
All issues in google/google-java-format
Similar issues
-
bug
Difficulty 2/5 1-3 hours Newbie friendliness 84/100
Maintainers usually reply within 1 day
-
bug
Difficulty 2/5 1-3 hours Newbie friendliness 82/100
Maintainers usually reply within 1 day
-
ci-failure-cause test-failure
Difficulty 2/5 1-3 hours Newbie friendliness 72/100
Maintainers usually reply within 1 day
-
enhancement
Difficulty 2/5 1-3 hours Newbie friendliness 65/100
nextcloud/notes-android#3367 ·
Maintainers usually reply within 1 day
-
:wave: team-triage a:chore in:isolated-projects in:kotlin-dsl
Difficulty 2/5 1-3 hours Newbie friendliness 78/100
Maintainers usually reply within 1 day