private static void Main(string[] args) { #region Adapter ///Adapter pattern example //var adapter = new AdapterClient(); //adapter.Main(); #endregion #region Bridge ///Bridge pattern example //var bridgeClient = new BridgeClient(); //Abstraction abstraction = new Abstraction(new ConcreteImplementationA()); //bridgeClient.ClientCode(abstraction); //Console.WriteLine(); //abstraction = new ExtendedAbstraction(new ConcreteImplementationB()); //bridgeClient.ClientCode(abstraction); #endregion #region Composite ///Composite pattern example //CompositeClient client = new CompositeClient(); //Leaf leaf = new Leaf(); //Console.WriteLine("Client: I get a simple component:"); //client.ClientCode(leaf); //var tree = new Composite.Composite(); //Composite.Composite branch1 = new Composite.Composite(); //branch1.Add(new Leaf()); //branch1.Add(new Leaf()); //Composite.Composite branch2 = new Composite.Composite(); //branch2.Add(new Leaf()); //tree.Add(branch1); //tree.Add(branch2); //Console.WriteLine("Client: Now I've got a composite tree:"); //client.ClientCode(tree); //Console.Write("Client: I don't need to check the components classes even when managing the tree:\n"); //client.ClientCode2(tree, leaf); #endregion #region Decorator /// Decorator pattern example //DecoratorClient client = new DecoratorClient(); //var simple = new ConcreteComponent(); //Console.WriteLine("Client: I get a simple component:"); //client.ClientCode(simple); //Console.WriteLine(); //ConcreteDecoratorA decorator1 = new ConcreteDecoratorA(simple); //ConcreteDecoratorB decorator2 = new ConcreteDecoratorB(decorator1); //Console.WriteLine("Client: Now I've got a decorated component:"); //client.ClientCode(decorator2); #endregion #region Facade /// Facade pattern example SubSystem1 subsystem1 = new SubSystem1(); SubSystem2 subsystem2 = new SubSystem2(); Facade.Facade facade = new Facade.Facade(subsystem1, subsystem2); FacadeClient.ClientCode(facade); #endregion Console.ReadKey(); }
public void Operation(Facade facade) { facade.Operation(); }
static void Main(string[] args) { var random = new Random(); // ********* Builder(Fluent) Pattern Usage: START ********* // creating dummy data for products simulation int capacity = 3; var products = new List <Product>(capacity); for (int i = 1; i <= capacity; i++) { products.Add( new Product { Id = Guid.NewGuid(), Name = $"Product {i}", Price = Math.Round(random.NextDouble() * 100, 2), NumberInStock = random.Next(100) }); } // creation of builder is mandatory. because we use it when we create manager for report builder var builder = new ProductStockReportBuilder(products); var manager = new ProductStockReportManager(builder); // report is generated by manager manager.BuildReport(); var productsReport = builder.GetReport(); Console.WriteLine(productsReport); // ********* Builder(Fluent) Pattern Usage: END ********* // ------------------------------------------------------------------------- // ********* Fluent Builder Interface with Recursive Generics Pattern Usage: START ********* var emp = EmployeeBuilderManager.NewEmployee .WithFirstName("Nuran").WithLastName("Tarlan").WithAge(18) .WithEMail("*****@*****.**") .WithMainPhone("xxx-xxx-xx-xx").WithBackupPhone("xxx-xxx-xx-xx") .AtPosition(Positions.FullStackDeveloper).WithSalary(500).Build(); Console.WriteLine(emp); // ********* Fluent Builder Interface with Recursive Generics Pattern Usage: END ********* // ------------------------------------------------------------------------- // ********* Faceted Builder Pattern Usage: START var car = new CarBuilderFacade() .Info.WithBrand(CarBrands.Subaru).WithModel("Impreza").CreatedAt(2003).WithDistance(186522.5) .Engine.WithEngine(1800).WithHorsePower(422).WithTorque(600) .Trade.WithPrice(18000.0m).IsSecondHand(true) .Address.InCity("Baku").InDealer("Subaru XXXXX-XX") .Build(); Console.WriteLine(car); // ********* Faceted Builder Pattern Usage: END // ------------------------------------------------------------------------- // ********* Factory Method Pattern Usage: START AirConditioner.InitializeFactories() .ExecuteCreation(Actions.Cooling, 20.2) .Operate(); // ********* Factory Method Pattern Usage: END // ------------------------------------------------------------------------- Console.WriteLine("\n-------------------------------\n"); // ********* Singleton Pattern Usage: START var db1 = SingletonDataContainer.GetInstance; Console.WriteLine($"Population of Sumqayit: {db1.GetPopulation("Sumqayit")}"); var db2 = SingletonDataContainer.GetInstance; Console.WriteLine($"Baku: {db2.GetPopulation("Baku")} people"); // ********* Singleton Pattern Usage: END // ------------------------------------------------------------------------- Console.WriteLine("\n-------------------------------\n"); // ********* Adapter Pattern Usage: START var xmlConverter = new CustomXmlConverter(); var adapter = new XmlToJsonAdapter(xmlConverter); adapter.ConvertXmlToJson(); // ********* Adapter Pattern Usage: END // ------------------------------------------------------------------------- Console.WriteLine("\n-------------------------------\n"); // ********* Composite Pattern Usage: START // single gift var phone = new SingleGift("Phone", 500); phone.CalculateTotalPrice(); Console.WriteLine(); // composite many gifts together var rootBox = new CompositeGift("Surprise Box for Teenagers", true); var truckToy = new SingleGift("Truck Toy", 220); var plainToy = new SingleGift("Plain Toy", 89); rootBox.Add(truckToy); rootBox.Add(plainToy); var childBox = new CompositeGift("Surprise Box for Children", false); var soldierToy = new SingleGift("Soldier Toy", 15); childBox.Add(soldierToy); rootBox.Add(childBox); rootBox.CalculateTotalPrice(); // ********* Composite Pattern Usage: END // ------------------------------------------------------------------------- Console.WriteLine("\n-------------------------------\n"); // ********* Decorator Pattern Usage: START var regularOrder = new RegularOrder(); Console.WriteLine(regularOrder.CalculateTotalOrderPrice() + "\n"); var preOrder = new PreOrder(); Console.WriteLine(preOrder.CalculateTotalOrderPrice() + "\n"); var premiumPreOrder = new PremiumPreOrder(preOrder); Console.WriteLine(premiumPreOrder.CalculateTotalOrderPrice()); // ********* Decorator Pattern Usage: END // ------------------------------------------------------------------------- Console.WriteLine("\n-------------------------------\n"); // ********* Command Pattern Usage: START var modifyPrice = new ModifyPrice(); var product = new Product2("Phone", 500); modifyPrice.Execute(new ProductCommand(product, PriceAction.Increase, 100)); modifyPrice.Execute(new ProductCommand(product, PriceAction.Decrease, 700)); modifyPrice.Execute(new ProductCommand(product, PriceAction.Decrease, 20)); Console.WriteLine(product); modifyPrice.UndoActions(); Console.WriteLine(product); // ********* Command Pattern Usage: END // ------------------------------------------------------------------------- Console.WriteLine("\n-------------------------------\n"); // ********* Strategy Pattern Usage: START var reports = new List <DeveloperReport> { new DeveloperReport { Id = 1, Name = "Dev1", Level = DeveloperLevel.Senior, HourlyRate = 30.5, WorkingHours = 160 }, new DeveloperReport { Id = 2, Name = "Dev2", Level = DeveloperLevel.Junior, HourlyRate = 20, WorkingHours = 120 }, new DeveloperReport { Id = 3, Name = "Dev3", Level = DeveloperLevel.Senior, HourlyRate = 32.5, WorkingHours = 130 }, new DeveloperReport { Id = 4, Name = "Dev4", Level = DeveloperLevel.Junior, HourlyRate = 24.5, WorkingHours = 140 } }; var calculatorContext = new SalaryCalculator(new JuniorDeveloperSalaryCalculator()); var juniorTotal = calculatorContext.Calculate(reports); Console.WriteLine($"Total amount for junior salaries is: {juniorTotal}"); calculatorContext.SetCalculator(new SeniorDeveloperSalaryCalculator()); var seniorTotal = calculatorContext.Calculate(reports); Console.WriteLine($"Total amount for senior salaries is: {seniorTotal}"); Console.WriteLine($"Total cost for all the salaries is: {juniorTotal + seniorTotal}"); // ********* Strategy Pattern Usage: END // ------------------------------------------------------------------------- Console.WriteLine("\n-------------------------------\n"); // ********* Facade Pattern Usage: START var facade = new Facade.Facade(); var chickenOrder = new Order() { DishName = "Chicken with rice", DishPrice = 20.0, User = "******", ShippingAddress = "Random street 123" }; var sushiOrder = new Order() { DishName = "Sushi", DishPrice = 52.0, User = "******", ShippingAddress = "More random street 321" }; facade.OrderFood(new List <Order> { chickenOrder, sushiOrder }); // ********* Facade Pattern Usage: END // ------------------------------------------------------------------------- Console.WriteLine("\n-------------------------------\n"); // ********* Prototype Pattern Usage: START var grid = new List <IBlock>(); grid.AddRange(new List <IBlock> { BlockFactory.Create("Hello, world!"), BlockFactory.Create("3"), BlockFactory.Create("16/05/2002"), // datetime BlockFactory.Create("08/22/2021") // string, because 12 month exist in calendar }); foreach (var block in grid) { Console.WriteLine(block); } var block5 = (DateTimeBlock)grid[2].Clone(); block5.Format = "MM/dd/yyyy"; grid.Add(block5); Console.WriteLine("\nblock5 is added..."); Console.WriteLine(block5); var block6 = (DateTimeBlock)grid[4].Clone(); block6.DateTime = DateTime.UtcNow; grid.Add(block6); Console.WriteLine("\nblock6 is added..."); Console.WriteLine(block6); // ********* Prototype Pattern Usage: END // ------------------------------------------------------------------------- Console.WriteLine("\n-------------------------------\n"); // ********* Protection-Proxy Pattern Usage: START var settings = new Settings("settings config"); Console.WriteLine(settings.GetConfig()); var authService = new AuthService(); var protectedSettings = new ProtectedSettings(authService); Console.WriteLine(protectedSettings.GetConfig()); // ********* Protection-Proxy Pattern Usage: END // ********* Iterator Pattern Usage: START var numbers = new CustomLinkedList <int>(1); for (int i = 2; i < 8; i++) { numbers.Add(i); } var iterator = numbers.Iterator; while (!iterator.Complete) { Console.WriteLine(iterator.Next()); } // Exception will be thrown // Console.WriteLine(iterator.Next()); // ********* Iterator Pattern Usage: END }
// The program code works with complex subsystems through a simple // interface provided by the Facade. When a facade manages the lifecycle // of the subsystem, the client might not even know about the existence // of the subsystem. This approach lets you keep the complexity under // control. public static void ProgramCode(Facade facade) { Console.Write(facade.Operation()); }