コード例 #1
0
        public static void Run()
        {
            var resources = new List <Resource>
            {
                new Resource {
                    Type = ResourceType.Gold, Quantity = 2
                },
                new Resource {
                    Type = ResourceType.Silver, Quantity = 1
                },
                new Resource {
                    Type = ResourceType.Copper, Quantity = 4
                },
                new Resource {
                    Type = ResourceType.Gold, Quantity = 5
                },
                new Resource {
                    Type = ResourceType.Gold, Quantity = 1
                },
                new Resource {
                    Type = ResourceType.Copper, Quantity = 2
                },
                new Resource {
                    Type = ResourceType.Silver, Quantity = 7
                },
                new Resource {
                    Type = ResourceType.Silver, Quantity = 5
                },
                new Resource {
                    Type = ResourceType.Gold, Quantity = 1
                },
            };

            // Create all handlers
            var firstHandler  = new GoldHandler();
            var secondHandler = new SilverHandler();
            var thirdHandler  = new CopperHandler();

            // connect them into chain
            firstHandler.AddNext(secondHandler);
            secondHandler.AddNext(thirdHandler);

            // pass all resources via chain
            // GoldHandler -> SilverHandler -> CopperHandler
            resources.ForEach(firstHandler.Handle);

            var handledGold   = firstHandler.GetResult();
            var handledSilver = secondHandler.GetResult();
            var handledCopper = thirdHandler.GetResult();

            Console.WriteLine($"Gold: {handledGold.Quantity} points");
            Console.WriteLine($"Silver: {handledSilver.Quantity} points");
            Console.WriteLine($"Copper: {handledCopper.Quantity} points");
        }