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Mediator Pattern in Go

Overview

This repository demonstrates the application of the Mediator design pattern in Go. The project showcases how to reduce tight coupling between components by introducing a mediator that manages communication, emphasizing best practices in design patterns.

Pattern Description

The Mediator pattern centralizes communication between objects to simplify dependencies. Instead of components communicating directly, they interact through a mediator, which coordinates their interactions.

Key Components

  • Mediator Interface: Defines a method to notify the mediator of events.
  • ConcreteMediator: Implements the Mediator interface, managing communication between components.
  • BaseComponent: Provides a base implementation for components to interact with the mediator.
  • ComponentA and ComponentB: Concrete components that communicate through the mediator.

Project Structure

  • cmd/: Contains the application entry point (main.go), demonstrating the pattern in action.
  • pkg/mediator/: Houses the Mediator pattern implementation.
    • mediator.go: Defines the Mediator interface.
    • base_component.go: Implements the base component for interaction.
    • concrete_mediator.go: Implements the mediator managing communication.
    • component_a.go: Implements ComponentA for interaction via the mediator.
    • component_b.go: Implements ComponentB for interaction via the mediator.

Getting Started

Prerequisites

Ensure you have Go installed on your system. You can download it from Go's official site.

Installation

Clone this repository to your local machine:

git clone https://github.com/your-username/mediator-pattern-go.git
cd mediator-pattern-go

Example Output

When you run the application, you should see:

ComponentA is doing something...
Mediator received event 'event_from_A' from ComponentA. Notifying ComponentB.
ComponentB reacted to 'event_from_A'.
ComponentB is doing something else...
Mediator received event 'event_from_B' from ComponentB. Notifying ComponentA.
ComponentA reacted to 'event_from_B'.

Contributing

Contributions are welcome! Please feel free to submit pull requests or open issues to discuss proposed changes or enhancements.

Author

Arthur Ferreira - github.com/arthurfp