using System;

using System.Collections.Generic;

​

public interface IPlugin {

    void Execute();

}

​

public class ExamplePlugin: IPlugin {

    public void Execute() { }

}

​

public class ExamplePluginTwo: IPlugin {

    public void Execute() { }

}

​

public class PluginManager {

   private Dictionary<string, IPlugin> _pluginDictionary = new Dictionary<string, IPlugin>();

   public void Register(string pluginKey, IPlugin plugin) {

      if (this._pluginDictionary.ContainsKey(pluginKey)) {

         throw new Exception($"Plugin key: {pluginKey} already has a registered plugin.");

      }

       this._pluginDictionary.Add(pluginKey, plugin);

   }

   public void Execute(string pluginKey) {

      if(!this._pluginDictionary.ContainsKey(pluginKey)) {

         throw new Exception($"Unable to execute. Plugin key: {pluginKey} is not registered.");

      }

      this._pluginDictionary[pluginKey].Execute();

   }

}

​

public class ExampleService {

   private PluginManager _pluginManager = new PluginManager();

   public ExampleService() {

      this._pluginManager.Register("ExamplePlugin", new ExamplePlugin());

      this._pluginManager.Register("ExampPluginTwo", new ExamplePluginTwo());

   }

   public void GetSomething(string pluginName) {

      this._pluginManager.Execute(pluginName);

   }

}

​

public class Program

{

    public static void Main()

    {

        ExampleService exampleService = new ExampleService();

    }

}