public override void Request(string Value)
{
if (_realSubject == null)
{
_realSubject = new RealSubject();
}
_realSubject.Request(Value);
}
// Constructor
public Proxy()
{
var ad = AppDomain.CreateDomain("RealSubjectDomain", null, null);
var o = ad.CreateInstance(
this.GetType().Namespace,
this.GetType().Namespace + ".RealSubject");
realSubject = (RealSubject)o.Unwrap();
}
// The most common applications of the Proxy pattern are lazy loading,
// caching, controlling the access, logging, etc. A Proxy can perform
// one of these things and then, depending on the result, pass the
// execution to the same method in a linked RealSubject object.
public void Request()
{
if (this.CheckAccess())
{
this._realSubject = new RealSubject();
this._realSubject.Request();
this.LogAccess();
}
}
public Client()
{
Program program = new Program();
Console.WriteLine("Program: Executing the client code with a real subject:");
RealSubject realSubject = new RealSubject();
program.ProgramCode(realSubject);
Console.WriteLine();
Console.WriteLine("Program: Executing the same client code with a proxy:");
Proxy proxy = new Proxy(realSubject);
program.ProgramCode(proxy);
}
public void Ex1()
{
Client client = new Client();
Console.WriteLine("Client: Executing the client code with a real subject:");
RealSubject realSubject = new RealSubject();
client.ClientCode(realSubject);
Console.WriteLine();
Console.WriteLine("Client: Executing the same client code with a proxy:");
Proxy proxy = new Proxy(realSubject);
client.ClientCode(proxy);
}
public Proxy(RealSubject realSubject)
{
_realSubject = realSubject;
}
public Proxy(RealSubject realSubject)
{
this._realSubject = realSubject;
}
