CODESAMPLE

Microkernel - C#

Microkernel C_sharp

The Microkernel pattern aims to create a minimal core system (“microkernel”) that provides basic functionality, with specialized operations implemented as plug-in modules. This promotes flexibility, extensibility, and isolation of concerns. Our C# example simulates this by defining a core Kernel class managing plugins (implemented as interfaces). Plugins register themselves with the kernel and can then be called. This leverages C#’s interface and delegate features for loose coupling. The use of dependency injection is apparent in how the kernel manages plugin dependencies. The code is structured with a separate interface for plugins, enhancing separation of concerns and testability.

// Plugin Interface
public interface IPlugin
{
    string Name { get; }
    void Execute(Kernel kernel);
}

// Microkernel Class
public class Kernel
{
    private readonly List<IPlugin> _plugins = new();

    public void RegisterPlugin(IPlugin plugin)
    {
        _plugins.Add(plugin);
    }

    public void RunPlugins()
    {
        foreach (var plugin in _plugins)
        {
            plugin.Execute(this); // Pass the kernel for inter-plugin communication
        }
    }
}

// Example Plugins
public class PluginA : IPlugin
{
    public string Name => "Plugin A";

    public void Execute(Kernel kernel)
    {
        Console.WriteLine("Executing Plugin A...");
        //Plugin A can access or use other plugins via the kernel object.
    }
}

public class PluginB : IPlugin
{
    public string Name => "Plugin B";

    public void Execute(Kernel kernel)
    {
        Console.WriteLine("Executing Plugin B...");
    }
}

// Program.cs (Example Usage)
public class Program
{
    public static void Main(string[] args)
    {
        var kernel = new Kernel();

        kernel.RegisterPlugin(new PluginA());
        kernel.RegisterPlugin(new PluginB());

        kernel.RunPlugins();
    }
}