Patterns in SOME –Proxy

Code in C#:   namespace Proxy_DesignPattern {      using System;      using System.Threading;        ///<summary>      ///    Summary description for Client.      ///</summary>      abstract class CommonSubject      {          abstract public void Request();           }        class ActualSubject : CommonSubject      {          public ActualSubject()          {               // Assume constructor here does some operation that takes quite a               // while - hence the need for a proxy - to delay incurring this               // delay until (and if) the actual subject is needed               Console.WriteLine("Starting to construct ActualSubject");                      Thread.Sleep(1000); // represents lots of processing!               Console.WriteLine("Finished constructing ActualSubject");          }                        override public void Request()          {               Console.WriteLine("Executing request in ActualSubject");          }      }        class Proxy : CommonSubject      {          ActualSubject actualSubject;            override public void Request()          {               if (actualSubject == null)                    actualSubject = new ActualSubject();               actualSubject.Request();          }                  }           public class Client      {          public static int Main(string[] args)          {               Proxy p = new Proxy();                 // Perform actions here               // . . .                 if (1==1)     // at some later point, based on a condition,                    p.Request();// we determine if we need to use subject                                                  return 0;          }      } }   Code in SOME:    ACommonSubject        a_Request()   CActualSubject :ACommonSubject        ()        o_Request()   CProxy : ACommonSubject,->CActualSubject[_actualSubject]        o_Request()   CClient        main        CClient.main {        CProxy p.();        p.Request()        {               <%if (_actualSubject == null) %>               <%{ %>                      _actualSubject.()                      {                             <%                             Console.WriteLine("Starting to construct ActualSubject");                                      Thread.Sleep(1000); // represents lots of processing!                             Console.WriteLine("Finished constructing ActualSubject");                             %>                      };               <%}%>               _actualSubject.Request()               {                      <% Console.WriteLine("Executing request in ActualSubject"); %>               };        }; }