static void Main()
{
Observable observable = new Observable();
Observer observer = new Observer();
observable.SomethingHappened += observer.HandleEvent;
observable.DoSomething();
}
private static void Main(string[] args)
{
int num;
Pattern pattern;
if (args.Length == 0)
{
Console.WriteLine("Please 0 for mediator, 1 for observer or 2 for factory.");
var chosenPattern = Console.ReadLine();
var test = int.TryParse(chosenPattern, out num);
if (!test)
{
Console.WriteLine("You refused to enter a number so we will default to the Mediator.");
}
}
else
{
var test = int.TryParse(args[0], out num);
if (!test)
{
Console.WriteLine("You refused to enter a number so we will default to the Mediator.");
}
}
switch (num)
{
case 0:
pattern = Pattern.Mediator;
break;
case 1:
pattern = Pattern.Observer;
break;
case 2:
pattern = Pattern.Factory;
break;
default:
pattern = Pattern.Mediator;
break;
}
switch (pattern)
{
case Pattern.Mediator:
IMediator mediator = new ConcreteMediator();
IParticipant participant1 = new ConcreteParticipant1(mediator, "Jay Hardcore");
IParticipant participant2 = new ConcreteParticipant2(mediator, "Chuck");
IParticipant participant3 = new ConcreteParticipant3(mediator, "Brenda");
IParticipant participant4 = new ConcreteParticipant4(mediator, "Hal Jordan");
mediator.AddParticipant(participant1);
mediator.AddParticipant(participant2);
mediator.AddParticipant(participant3);
mediator.AddParticipant(participant4);
participant1.SendMessage("Sending message for the first participant");
participant2.SendMessage("Sending message for the second participant");
participant3.SendMessage("Sending message for the third participant");
participant4.SendMessage("Sending message for the fourth participant");
mediator.BroadcastMessage("Mediator message for participant:", participant1);
mediator.BroadcastMessage("Mediator message for participant:", participant2);
mediator.BroadcastMessage("Mediator message for participant:", participant3);
mediator.BroadcastMessage("Mediator message for participant:", participant4);
break;
case Pattern.Observer:
var observable = new Observable();
var anotherObservable = new AnotherObservable();
using (IObserver observer = new Observer(observable, "Tony Stark's Observer"))
{
Console.WriteLine(observer.GetName());
observer.GetName();
observable.DoSomething();
observer.Add(anotherObservable);
anotherObservable.DoSomething();
observer.Remove(observable);
observer.Remove(anotherObservable);
}
break;
case Pattern.Factory:
new FactoryClient().EnergizeStarShipClient();
break;
default:
throw new ArgumentOutOfRangeException();
}
Console.WriteLine("----------press enter to exit----------");
Console.ReadLine();
}
public DesignPatternModule()
{
Get["/testStatePattern"] = _ =>
{
var traficLight = new TraficLight();
var process = traficLight.StartTheTraficLight();
return(process);
};
Get["/testNullObjectPattern"] = _ =>
{
var dog = new Dog();
var dougSound = "Dog Sound: " + dog.MakeSound() + ", ";
var unknown = Animal.Null;
var noAnimalSound = "No Animal Sound: " + unknown.MakeSound();
return(dougSound + noAnimalSound);
};
Get["/testObserverPattern"] = _ =>
{
var observable = new Observable();
var observer = new Observer();
observable.SomethingHappened += observer.HandleEvent;
var observerValue = observable.DoSomething();
return(observerValue);
};
Get["/testBridgePattern/{currentSource}"] = _ =>
{
var currentSource = (string)_.currentSource;
var myCustomTv = new MyCustomTv();
switch (currentSource)
{
case "1":
myCustomTv.VideoSource = new LocalCableTv();
break;
case "2":
myCustomTv.VideoSource = new CableColorTv();
break;
case "3":
myCustomTv.VideoSource = new TigoService();
break;
}
var tvGuide = myCustomTv.ShowTvGuide();
var playVideo = myCustomTv.ShowTvGuide();
return(tvGuide + " / " + playVideo);
};
Get["/testVisitorPattern"] = _ =>
{
var popRock = new PopRockMusicVisitor();
var musicLibrary = new MusicLibrary();
var songs = musicLibrary.Accept(popRock);
return(songs);
};
Get["/testBuilderPattern"] = _ =>
{
var shop = new Shop();
VehicleBuilder builder = new CarBuilder();
shop.Construct(builder);
var getBuilderProcess = builder.Vehicle.Show();
return(getBuilderProcess);
};
Get["/testInterpreterPattern"] = _ =>
{
const string roman = "MCMXXVIII";
var context = new Context(roman);
var tree = new List <Expression>
{
new ThousandExpression(),
new HundredExpression(),
new TenExpression(),
new OneExpression()
};
foreach (var exp in tree)
{
exp.Interpret(context);
}
return("Interpreter Input: " + roman + ", Interpreter Output: " + context.Output);
};
Get["/testChainOfResponsabilityPattern"] = _ =>
{
var response = "";
var pamela = new Director();
var byron = new VicePresident();
var colin = new President();
pamela.SetSuccessor(byron);
byron.SetSuccessor(colin);
var p = new Purchase(2034, 350.00, "Assets");
response = pamela.ProcessRequest(p);
p = new Purchase(2035, 32590.10, "Project X");
response += " / " + pamela.ProcessRequest(p);
p = new Purchase(2036, 90000.00, "Project Y");
response += " / " + pamela.ProcessRequest(p);
p = new Purchase(2036, 122100.00, "Project Z");
response += " / " + pamela.ProcessRequest(p);
return(response);
};
Get["/testIteratorPattern"] = _ =>
{
var collection = new Collection();
collection[0] = new Item("Item 0");
collection[1] = new Item("Item 1");
collection[2] = new Item("Item 2");
collection[3] = new Item("Item 3");
collection[4] = new Item("Item 4");
collection[5] = new Item("Item 5");
collection[6] = new Item("Item 6");
collection[7] = new Item("Item 7");
collection[8] = new Item("Item 8");
var iterator = collection.CreateIterator();
iterator.Step = 2;
var response = "Iterating over collection:";
for (var item = iterator.First(); !iterator.IsDone; item = iterator.Next())
{
response += item.Name + " / ";
}
return(response);
};
Get["/testAdapterPattern"] = _ =>
{
var response = "";
var unknown = new Compound("Unknown");
response += " / " + unknown.Display();
var water = new RichCompound("Water");
response += " / " + water.Display();
var benzene = new RichCompound("Benzene");
response += " / " + benzene.Display();
var ethanol = new RichCompound("Ethanol");
response += " / " + ethanol.Display();
return(response);
};
Get["/testCommandPattern"] = _ =>
{
var response = "";
var user = new User();
response += user.Compute('+', 100) + " / ";
response += user.Compute('-', 50) + " / ";
response += user.Compute('*', 10) + " / ";
response += user.Compute('/', 2) + " / ";
response += user.Undo(4) + " / ";
response += user.Redo(3);
return(response);
};
Get["/testFactoryPattern"] = _ =>
{
var response = "";
var documents = new Document[2];
documents[0] = new Resume();
documents[1] = new Report();
foreach (var document in documents)
{
response += document.GetType().Name + "--";
foreach (var page in document.Pages)
{
response += " " + page.GetType().Name;
}
}
return(response);
};
Get["/testStrategyPattern"] = _ =>
{
var response = "";
var studentRecords = new SortedList();
studentRecords.Add("Samual");
studentRecords.Add("Jimmy");
studentRecords.Add("Sandra");
studentRecords.Add("Vivek");
studentRecords.Add("Anna");
studentRecords.SetSortStrategy(new QuickSort());
response += "Quicksort: " + studentRecords.Sort() + " -- ";
studentRecords.SetSortStrategy(new ShellSort());
response += "ShellSort: " + studentRecords.Sort() + " -- ";
studentRecords.SetSortStrategy(new MergeSort());
response += "MergeSort: " + studentRecords.Sort();
return(response);
};
Get["/testTemplatePattern"] = _ =>
{
var response = "";
AbstractClass aA = new ConcreteClassA();
response += aA.TemplateMethod();
AbstractClass aB = new ConcreteClassB();
response += aB.TemplateMethod();
return(response);
};
Get["/testFacadePattern"] = _ =>
{
var response = "";
var mortgage = new Mortgage();
var customer = new Customer("Ann McKinsey");
var eligible = mortgage.IsEligible(customer, 125000);
response += customer.Name + " has been " + (eligible ? "Approved" : "Rejected");
return(response);
};
Get["/mediatorPattern"] = _ =>
{
var response = "";
var chatroom = new Chatroom();
Participant paul = new Beatle("Paul");
Participant john = new Beatle("John");
Participant yoko = new NonBeatle("Yoko");
Participant ringo = new Beatle("Ringo");
chatroom.Register(paul);
chatroom.Register(john);
chatroom.Register(yoko);
chatroom.Register(ringo);
response += yoko.Send("John", "Hi John!") + " ";
response += paul.Send("Ringo", "All you need is love") + " ";
response += paul.Send("John", "Can't buy me love") + " ";
response += john.Send("Yoko", "My sweet love");
return(response);
};
Get["/testFlyweightPattern"] = _ =>
{
var response = "";
const string document = "AAZZBBZB";
var chars = document.ToCharArray();
var factory = new CharacterFactory();
var pointSize = 10;
foreach (var c in chars)
{
pointSize++;
var character = factory.GetCharacter(c);
response += character.Display(pointSize) + " ";
}
return(response);
};
Get["/testMomentoPattern"] = _ =>
{
var response = "Save Sales, Restore Memento";
var s = new SalesProspect
{
Name = "Noel van Halen",
Phone = "(412) 256-0990",
Budget = 25000.0
};
var m = new ProspectMemory {
Memento = s.SaveMemento()
};
s.Name = "Leo Welch";
s.Phone = "(310) 209-7111";
s.Budget = 1000000.0;
s.RestoreMemento(m.Memento);
return(response);
};
Get["/testDoubleDispatchPattern"] = _ =>
{
var response = "";
object x = 5;
var dispatch = new DoubleDispatch();
response += dispatch.Foo <int>(x);
response += dispatch.Foo <string>(x.ToString());
return(response);
};
Get["/testTransactionScriptPattern"] = _ =>
{
var response = "";
response += "Booked Holiday: " + HolidayService.BookHolidayFor(1, new DateTime(2016, 12, 31), new DateTime(2017, 1, 5)) + " - ";
response += "Employes Leaving in Holiday: " + string.Join(", ", HolidayService.GetAllEmployeesOnLeaveBetween(new DateTime(2016, 12, 31),
new DateTime(2017, 1, 5)).Select(x => x.Name)) + " - ";
response += "Employes without Holiday: " + string.Join(", ", HolidayService.GetAllEmployeesWithHolidayRemaining().Select(x => x.Name));
return(response);
};
}
