public HiveEventPublisher(HiveEvents supportedEvents)
{
_supportedEvents = supportedEvents;
_activeEvents = HiveEvents.None;
_addEventSubscribers = null;
_removingEventSubscribers = null;
}
public void Subscribe(IHiveEventSubscriber <T, TSize, TIterator> subscriber, HiveEvents toEvents)
{
if ((toEvents & HiveEvents.Added) == HiveEvents.Added)
{
Subscribe(subscriber, HiveEvents.Added, ref _addEventSubscribers);
}
if ((toEvents & HiveEvents.Removing) == HiveEvents.Removing)
{
Subscribe(subscriber, HiveEvents.Removing, ref _removingEventSubscribers);
}
}
public void Unsubscribe(IHiveEventSubscriber <T, TSize, TIterator> subscriber, HiveEvents fromEvents)
{
if ((fromEvents & HiveEvents.Added) == HiveEvents.Added && _addEventSubscribers != null)
{
_addEventSubscribers.Remove(subscriber);
}
if ((fromEvents & HiveEvents.Removing) == HiveEvents.Removing && _removingEventSubscribers != null)
{
_removingEventSubscribers.Remove(subscriber);
}
}
private void Subscribe(IHiveEventSubscriber <T, TSize, TIterator> subscriber, HiveEvents toEvent,
ref IList <IHiveEventSubscriber <T, TSize, TIterator> > subscriberList)
{
if ((_supportedEvents & toEvent) == 0)
{
throw new NotSupportedException(
string.Format("The '{0}' event is not supported.", toEvent));
}
if (subscriberList == null)
{
subscriberList = new List <IHiveEventSubscriber <T, TSize, TIterator> >();
}
subscriberList.Add(subscriber);
}
public bool HasSubscriptionForAny(HiveEvents hiveEvents)
{
return((_activeEvents & hiveEvents) != HiveEvents.None);
}
public bool HasSubscriptionForAll(HiveEvents hiveEvents)
{
return((_activeEvents & hiveEvents) == hiveEvents);
}
