public void Register(IMessageSubscriber Subscriber)
{
SubscriberInfo subInfo = GetInfoFor(Subscriber);
if (subInfo == null)
{
subInfo = new SubscriberInfo(Subscriber);
}
else
{
_Logger.LogAt(LogLevel.LL_DebugFramework,
"Already had a subscriber for same instance: " + subInfo.ToString()
);
return;
}
_Logger.LogAt(LogLevel.LL_Info, "Creating Group: " + subInfo.SubscriberType.Name);
_MessageHandlers.CreateGroup(subInfo);
_Logger.LogAt(LogLevel.LL_DebugFramework, "START --Adding Handlers--");
foreach (HandlerInfo info in FindHandlers(subInfo))
{
_Logger.LogAt(LogLevel.LL_DebugFramework, "Handler: " + info.ToString()
);
_MessageHandlers.ToGroup(
subInfo,
(Groups <SubscriberInfo, HandlerInfo> .Members handlers) => { handlers.Add(info); }
);
}
_Logger.LogAt(LogLevel.LL_DebugFramework, "END --Adding Handlers--");
}
// ----- PRIVATE -------
private SubscriberInfo GetInfoFor(IMessageSubscriber Subscriber)
{
SubscriberInfo result = null;
// Could have Group of Groups - type hierarchy above subscriber...
//_MessageHandlers.ForMembersOfGroup(Subscriber.GetType(), (SubscriberInfo info) =>
//{
//});
_MessageHandlers.EachGroupDo((SubscriberInfo info) =>
{
if (info.Instance == Subscriber)
{
result = info;
}
});
return(result);
}
private IEnumerable <HandlerInfo> FindHandlers(SubscriberInfo SubInfo)
{
HandlerInfo handlerInfo = null;
MethodInfo[] methods = SubInfo.SubscriberType.GetMethods(
BindingFlags.Instance
| BindingFlags.Public
| BindingFlags.FlattenHierarchy
);
//_Logger.LogAt(LogLevel.LL_DebugFramework, "FindHandlers - "+methods.Length + " methods to process.");
foreach (MethodInfo mthd in methods)
{
//_Logger.LogAt(LogLevel.LL_DebugFramework, "Method: " + mthd.Name);
object[] attribs = mthd.GetCustomAttributes(typeof(SubscribeToAttribute), false);
if (attribs != null && attribs.Length > 0)
{
//_Logger.LogAt(LogLevel.LL_DebugFramework, "Found" + attribs.Length + " SubscribeTo attributes.");
foreach (object attr in attribs)
{
SubscribeToAttribute subTo = attr as SubscribeToAttribute;
if (subTo != null)
{
_Logger.LogAt(LogLevel.LL_DebugFramework, subTo.ToString());
Delegate del = Delegate.CreateDelegate(typeof(MessageHandler), SubInfo.Instance, mthd, false);
MessageHandler handler = (MessageHandler)del;
if (handler != null)
{
handlerInfo = new HandlerInfo(subTo);
handlerInfo.UpdateHandler(handler);
yield return(handlerInfo);
}
}
else
{
_Logger.LogAt(LogLevel.LL_DebugFramework, "SubscribeTo was NULL");
}
}
}
}
yield break;
}
public void Deregister(IMessageSubscriber Subscriber)
{
SubscriberInfo info = GetInfoFor(Subscriber);
_MessageHandlers.DestroyGroup(info);
}
public void UndoObserver(IMessageSubscriber Observer, IMessageSubscriber ObservedObject)
{
SubscriberInfo Info = GetInfoFor(Observer);
Info.ClearObservedObject(ObservedObject);
}
public void MakeObserver(IMessageSubscriber Observer, IMessageSubscriber ObservedObject)
{
SubscriberInfo Info = GetInfoFor(Observer);
Info.SetObservedObject(ObservedObject);
}