// 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 SendHttpRequest(string url)
{
if (CheckAccess())
{
_realSubject = new RealSubject();
_realSubject.SendHttpRequest(url);
LogAccess();
}
}
public double Subsctract(double value1, double value2)
{
double result = 0;
if (CheckAccess())
{
_realSubject = new RealSubject();
result = _realSubject.Subsctract(value1, value2);
LogAccess();
}
return(result);
}
public Proxy(RealSubject realSubject)
{
_realSubject = realSubject;
}