Craftsmanship training

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Training Clean Code

Design and write a clean code, improve an existing code

Duration 3 days Get a quote

The software quality imperative

  • Consequences of insufficient quality
  • The infernal cycle: writing, rewriting
  • The concept of technical debt
  • Tools and processes: necessary, but not sufficient
    • Quality control tools
    • Process and formatting
    • Limitations
  • What is clean code?

Principles of clean design

  • General principles
    • Founding principles of OOP
    • The four principles of Kent Beck
    • Importance of naming
    • Common sense by acronyms: YAGNI / KISS / DRY / POLA
    • Some functional programming principles
  • Minimize coupling, maximize cohesion
    • SOLID principles
    • Cohesion and coupling
    • Stability and instability
  • Supple design
    • Intention-Revealing Interfaces
    • Side-Effect-Free Functions
    • Defensive Programming
    • Conceptual Contours
    • Standalone Classes and Closure of Operations
    • Declarative Style of Design
    • Bonus: the principle of symmetry

Improve the quality of existing code: smells and refactors

  • The concepts of smell and refactor
  • The smells of Martin Fowler
    • Duplicated method
    • Duplicated class
    • Long method
    • Long class
    • Primitive obsession
    • Brief overview of other smells
  • Java effect
    • Equality .. or not
    • Immutability with holes
    • Instant obsolescence
    • Hide this exception that I can not see
    • ArrayList obsession
  • Weak design
    • Technical Modules: Service-Dao-Entity
    • Generate getters and setters
    • Death by nesting: the devil's staircase
    • Packages unpacked
    • To be or not to be: the inappropriate relationship Is-not-a
    • Javadoc and alibi tests
    • The editorialist: the intelligence buried in the comments
    • The night of living codes
  • Properly modify a legacy application

Panorama of other clean design methods

  • Test-first design at the service of quality
  • Software Craftsmanship
  • Standard design bricks
  • The business domain as the core of the software: the Domain-driven Design approach