public ShippingProvider CreateShippingProvider(Order order)
{
ShippingProviderFactory shippingProviderFactory;
if (order.Sender.Country != order.Recipient.Country)
{
shippingProviderFactory = new GlobalExpressShippingProviderFactory();
}
else
{
shippingProviderFactory = new StandardShippingProviderFactory();
}
return(shippingProviderFactory.CreateShippingProvider(order.Sender.Country));
}
// 1. separate client from creation of object
// 2. ALLOW MORE FLEXIBLE AND EXTENSIBLE
// 3. application only care about instance of ShippingProviderFactory and not care about EXACTLY WHICH shipping Provider it uses
// DIFF :
// simple factory has all decision inside its method only, whereas in this pattern
// CREATOR CAN OVERRIDE default factory method implementations
static void Main(string[] args)
{
var aus = "Australia";
var swe = "Sweden";
#region Create Order
var recipientCountry = aus;
var senderCountry = aus;
var totalWeight = 10;
var order = new Order
{
Recipient = new Address {
To = "Filip Ekberg", Country = recipientCountry
},
Sender = new Address {
To = "Someone else", Country = senderCountry
},
TotalWeight = totalWeight
};
order.LineItems.Add(new Item("CSHARP_SMORGASBORD", "C# Smorgasbord", 100m), 1);
order.LineItems.Add(new Item("CONSULTING", "Building a website", 100m), 1);
#endregion
order.ShippingStatus = ShippingStatus.ReadyForShipment;
//var cart = new ShoppingCart(order, new StandardShippingProviderFactory());
//var shippingLabel = cart.Finalize();
IShippingProviderFactory factory = null;
// OUT OF STATE TRANSPORT
if (order.Recipient != order.Sender)
{
factory = new GlobalExpressShippingProviderFactory();
}
else
{
factory = new StandardShippingProviderFactory();
}
var obj = factory.CreateShippingProvider(order.Sender.Country);
var shippingLabel = obj.GenerateShippingLabelFor(order);
Console.WriteLine(shippingLabel);
Console.ReadLine();
}
public ShippingProvider CreateShippingProvider(Order order)
{
// Example of including business logic in the factory class
// Using pre-existing factories inside the Abstract Factory pattern
ShippingProviderFactory shippingProviderFactory;
if (order.Sender.Country != order.Recipient.Country)
{
shippingProviderFactory = new GlobalExpressShippingProviderFactory();
}
else
{
shippingProviderFactory = new StandardShippingProviderFactory();
}
return(shippingProviderFactory.CreateShippingProvider(order.Sender.Country));
}
public ShippingProvider CreateShippingProvider(Order order)
{
var shippingProvider = new GlobalExpressShippingProviderFactory();
return(shippingProvider.CreateShippingProvider(order.Sender.Country));
}
