using System;

namespace FacadeSample

{

  /// <summary>

  /// MainApp startup class for Structural

  /// Facade Design Pattern.

  /// </summary>

  public class MainApp

  {

    /// <summary>

    /// Entry point into console application.

    /// </summary>

    public static void Main()

    {

      IAnalyticsFacade facade = new AnalyticsFacade();

        EventData edata = new EventData ();

        edata.data = "It is sample Data";

        edata.id = 1;

        facade.WriteEvent(edata);

        Console.WriteLine(facade.ReadEvent(1).data);

    }

  }

​

public class AnalyticsFacade : IAnalyticsFacade {

    private IAnalyticsFacade _Cloud;

    private IAnalyticsFacade _Splunk;

    //Enable system based on your needs

    bool enableSplunk = false;

    bool enableCloud = true;

    public AnalyticsFacade()

    {

        _Cloud = enableCloud ? new Cloud() : null;

        _Splunk = enableSplunk ? new Splunk() : null;

    }

    public bool WriteEvent(EventData data){

        if (_Splunk != null )

             return _Splunk.WriteEvent(data);

        if (_Cloud != null )

             return _Cloud.WriteEvent(data);

        return false;

    }

    public EventData ReadEvent(int id) {

     if (_Splunk != null )

             return _Splunk.ReadEvent(id);

        if (_Cloud != null )

             return _Cloud.ReadEvent(id);

        return null;

    }

}

​

public interface IAnalyticsFacade {

    bool WriteEvent(EventData data);

    EventData ReadEvent(int id);

}

​

public class EventData {

            public string data  { get; set;}

            public int id { get; set;}          

}

​

class Splunk : IAnalyticsFacade {

    public bool WriteEvent(EventData data){return true;}

    public EventData ReadEvent(int id) { return new EventData { data = "Data from Splunk", id=1};}

}

class Cloud : IAnalyticsFacade {

    public bool WriteEvent(EventData data){return true;}

    public EventData ReadEvent(int id) { return new EventData { data = "Data from Cloud", id=1};}

}

}