public Guid Subscribe(Concept observer, string label, EndemeSet enSetRelationship, Endeme enRelationship, EndemeSet enSet, Endeme en)
{
// --------------------------------------------------------------------------
// Most Concepts will be added to the Observer list
// --------------------------------------------------------------------------
EndemeItem standard = new EndemeItem(null);
if (standard.ItemKey == Guid.Empty)
{
throw new Exception("boom");
}
if (enRelationship.Count > 1 || !enRelationship.Contains('L'))
{
standard = Observer.Add(label, enSetRelationship, enRelationship, observer);
}
if (standard.ItemKey == Guid.Empty)
{
throw new Exception("boom");
}
// --------------------------------------------------------------------------
// A few Concepts will be added to the Friend list
// --------------------------------------------------------------------------
if (enRelationship.Contains('L'))
{
EndemeItem friend = Friend.Add(label, enSet, en, observer);
Observer.ChangeGuid(friend.ItemKey, standard.ItemKey);
}
return(standard.ItemKey);
}
public NoticesObserver()
{
mObserver = new Observer();
mNoticeMapper = new HandlerMapper <int>();
mOnlyOnceListeners = new OnlyOnceListenerMapper();
mObserver.Add(NoticeHandler);//同时侦听来自广播方式派发的消息
}
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();
}
// ----------------------------------------------------------------------------------------
// IConceptSource Interface implementation
// ----------------------------------------------------------------------------------------
/// <summary>
/// Implements a method of IConceptSource (similar to IObservable)
/// </summary>
/// <returns></returns>
public Guid Subscribe(Concept observer, string label, EndemeSet enSetRelationship, Endeme enRelationship)
{
EndemeItem item = Observer.Add(label, enSetRelationship, enRelationship, observer, true);
return(item.ItemKey);
}