/// <summary>
/// Initializes a new instance of the <see cref="Factory"/> class.
/// </summary>
/// <param name="factories">The underlying factories based on factory contract.</param>
protected Factory(params IFactory[] factories)
{
_contractDictionary = new Dictionary <Type, IFactory>();
_productDictionary = new Dictionary <Type, IFactory>();
foreach (IFactory factory in factories)
{
foreach (Type factoryContract in factory.GetType().GetInterfaces().Where(inter => inter.GetInterfaces().Contains(typeof(IFactory))))
{
_contractDictionary.Add(factoryContract, factory);
FactoryContractAttribute attribute = factoryContract.GetCustomAttribute(typeof(FactoryContractAttribute), false) as FactoryContractAttribute;
if (attribute != null)
{
_productDictionary.Add(attribute.Product, factory);
}
}
}
}
/// <summary>
/// Registers the factory contract.
/// </summary>
/// <param name="factoryContract">The factory contract.</param>
private void RegisterFactoryContract(Type factoryContract, Boolean overwrite)
{
if (!overwrite && _container.IsRegistered(factoryContract))
{
return;
}
FactoryContractAttribute factoryContractAttribute = factoryContract.GetCustomAttribute(typeof(FactoryContractAttribute), false) as FactoryContractAttribute;
// the contract can only be registered if the attribute exists
if (factoryContractAttribute != null)
{
// if a previously registered instance exists, it should be removed
if (_container.IsRegisteredInstance(factoryContract))
{
_container.UnregisterInstance(factoryContract);
}
_container.Register(factoryContract, factoryContractAttribute.DefaultBehavior, true);
_container.Register(factoryContractAttribute.Product.FullName,
factoryContract,
factoryContractAttribute.DefaultBehavior, true);
}
}
