static void Main(string[] args)
{
// factory pattern using Interface
var result = FeatFactory
.GetFeatureImplementation(Constants.FeatFlag)
.DoStuff();
Console.WriteLine(result);
// factory using Func<>
var features = FeatureFunctions <Func <string, int, string> >
.Create(new NewFeature().ProcessSomeData,
new NewFeature().ProcessSomeDataV2);
result = FeatFactory.FuncFactory(features, Constants.FeatFlag == "mycoolFlag")("foo", 1);
Console.WriteLine(result);
}
/// <summary>
/// Takes FeatureFunction wrapper which has the new and old method we are wanting to switch on
/// as well as boolean value on whether to use the new feature or not
/// </summary>
/// <param name="features"></param>
/// <param name="flagOn"></param>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public static T FuncFactory <T>(FeatureFunctions <T> features, bool flagOn)
{
return(!flagOn ? features.FeatOld : features.FeatNew);
}