public SubscriptionToken Subscribe <TEventBase>(Action <TEventBase> action) where TEventBase : EventBase
{
if (action == null)
{
throw new ArgumentNullException();
}
lock (SubscriptionsLock)
{
if (!_subscriptions.ContainsKey(typeof(TEventBase)))
{
_subscriptions.Add(typeof(TEventBase), new List <ISubscription>());
}
var token = new SubscriptionToken(typeof(TEventBase));
_subscriptions[typeof(TEventBase)].Add(new Subscription <TEventBase>(action, token));
return(token);
}
}
public void Unsubscribe(SubscriptionToken token)
{
if (token == null)
{
throw new ArgumentNullException();
}
lock (SubscriptionsLock)
{
if (_subscriptions.ContainsKey(token.EventItemType))
{
var allSubscriptions = _subscriptions[token.EventItemType];
var subscriptionToRemove = allSubscriptions.FirstOrDefault(x => x.SubscriptionToken.Token == token.Token);
if (subscriptionToRemove != null)
{
_subscriptions[token.EventItemType].Remove(subscriptionToRemove);
}
}
}
}