OOAD GradProject - AntiPatterns

Team Members: Spriha Mandal, Arjyahi Bhattacharya, Arunava Ghosh

This project showcases various Object-Oriented Design Anti-Patterns, their characteristics, and examples. It's an educational tool designed to help developers understand common pitfalls in OOAD and how to avoid them.

Features

• Examples of common OOAD anti-patterns.
• Illustrations of the impact of these patterns on maintainability, readability, and scalability.
• Code snippets showcasing how these anti-patterns manifest.

Prerequisites

Ensure you have the following installed:

• Java JDK 11+
• Gradle 8.11.1

Installation

1. Clone the repository:

   git clone https://github.com/spriha27/OOAD-GradProject-AntiPatterns.git
   cd OOAD-GradProject-AntiPatterns

2. Build the project:

   ./gradlew clean build

Directory Structure and Running Specific Anti-Patterns

Each anti-pattern example is located under src/main/java/code/<anti-pattern-name>. Some anti-patterns have standalone Java files, while others are organized into subdirectories. Follow the instructions below to run specific examples:

Cargo Cult Programming

Path: src/main/java/code/cargocultprogramming/

• Examples: NetworkConfigExample, OrderServiceExample, TryCatchExample
• Run:

  java -cp build/libs/app.jar code.cargocultprogramming.<ExampleName>

Data Class

Path: src/main/java/code/dataclass/

• Examples: Transaction, Product, Invoice, Employee, Customer
• Run:

  java -cp build/libs/app.jar code.dataclass.<ExampleName>

Excessive Inheritance

Path: src/main/java/code/excessiveinheritance/

• Examples: UtilityExample, MultiFunctionDevice, EmployeeExample, ElectricCar, BirdExample
• Run:

  java -cp build/libs/app.jar code.excessiveinheritance.<ExampleName>

God Object

Path: src/main/java/code/godobject/

• Subfolders:
  • applicationcontroller
  • datamanager
  • ordermanager
  • shoppingcart
  • utility
• Examples: UtilityMain (in utility folder)
• Run:

  java -cp build/libs/app.jar code.godobject.utility.UtilityMain

Golden Hammer

Path: src/main/java/code/goldenhammer/

• Subfolders:

  • oopoveruse
  • product
  • singleton

• Examples: singleton.Application, product.ECommerceApplication, oopoveruse.DocumentViewer

• Run:

  java -cp build/libs/app.jar code.goldenhammer.<ExampleName>

Lava Flow

Path: src/main/java/code/lavaflow/

• Examples: UserAccount, RequestProcessor, PaymentHandler, NewProcessor
• Run:

  java -cp build/libs/app.jar code.lavaflow.<ExampleName>

Overcomplicated Object Hierarchies

Path: src/main/java/code/overcomplicatedobject/

• Examples: Shape, Product, Car, AnimalSound, Animal
• Run:

  java -cp build/libs/app.jar code.overcomplicatedobject.<ExampleName>

Primitive Obsession

Path: src/main/java/code/primitiveobsession/

• Subfolders:
  • useremail
  • productmoney
  • customer
  • contactphone
• Examples: User, Product, Customer, Contact
• Run:

  java -cp build/libs/app.jar code.primitiveobsession.<ExampleName>

Spaghetti Code

Path: src/main/java/code/spaghetti/

• Examples: UserManagement, PaymentProcessor, OrderService, DiscountCalculator, Calculator
• Run:

  java -cp build/libs/app.jar code.spaghetti.<ExampleName>

Reinventing the Square Wheel

Path: src/main/java/code/squarewheel/

• Examples: ThreadPoolExample, LoggingExample, DateExample, ArrayListExample
• Run:

  java -cp build/libs/app.jar code.squarewheel.<ExampleName>

Violation of Encapsulation

Path: src/main/java/code/violationofencapsulation/

• Examples: Specific examples are located directly in the folder.
• Run:

  java -cp build/libs/app.jar code.violationofencapsulation.<ExampleName>

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Replace <ExampleName> with the class name you want to run. Each anti-pattern contains explanatory comments within the code for better understanding.