private static void Main(string[] args)
{
//Customers
var request1 = new LoanRequest {
Amount = 800, Customer = "Jimmy"
};
var request2 = new LoanRequest {
Amount = 5000, Customer = "Ben"
};
var request3 = new LoanRequest {
Amount = 200000, Customer = "Harry"
};
//Approvers, chained together
var manager = new Manager {
Name = "Tom, Manager"
};
var cashier = new Cashier {
Name = "Job, Cachier", Successor = manager
};
//All customers request cashier first to approve
cashier.HandleRequest(request1);
cashier.HandleRequest(request2);
cashier.HandleRequest(request3);
Console.ReadLine();
}
public static void TrySuccessor(this IRequestHandler current, LoanRequest req)
{
if (current.Successor != null)
{
Console.WriteLine("{0} Can't approve - Passing request to {1}", current.Name, current.Successor.Name);
current.Successor.HandleRequest(req);
}
else
{
Console.WriteLine("Amount invaid, no approval given");
}
}
public void HandleRequest(LoanRequest req)
{
if (req.Amount < 10000)
{
Console.WriteLine("{0} $$ Loan approved for {1} - Approved by {2}",
req.Amount, req.Customer, Name);
}
else
{
this.TrySuccessor(req);
}
}