private void RemoveSubscriptionInternal <TMessage>(SubscriptionToken subscriptionToken)
where TMessage : class, IMapleMessage
{
if (subscriptionToken == null)
{
throw new ArgumentNullException(nameof(subscriptionToken), $"{nameof(subscriptionToken)} {Resources.IsRequired}");
}
lock (_SubscriptionsPadlock)
{
var currentlySubscribed = (from sub in _subscriptions
where ReferenceEquals(sub.Subscription.SubscriptionToken, subscriptionToken)
select sub).ToList();
currentlySubscribed.ForEach(sub => _subscriptions.Remove(sub));
}
}
public WeakMapleMessageSubscription(ITranslationProvider translationProvider, SubscriptionToken subscriptionToken, Action <TMessage> deliveryAction, Func <TMessage, bool> messageFilter)
{
if (deliveryAction == null)
{
throw new ArgumentNullException(nameof(deliveryAction), $"{nameof(deliveryAction)} {Resources.IsRequired}");
}
if (messageFilter == null)
{
throw new ArgumentNullException(nameof(messageFilter), $"{nameof(messageFilter)} {Resources.IsRequired}");
}
_translationProvider = translationProvider ?? throw new ArgumentNullException(nameof(translationProvider), $"{nameof(translationProvider)} {Resources.IsRequired}");
SubscriptionToken = subscriptionToken ?? throw new ArgumentNullException(nameof(subscriptionToken), $"{nameof(subscriptionToken)} {Resources.IsRequired}");
DeliveryAction = new WeakReference(deliveryAction);
MessageFilter = new WeakReference(messageFilter);
}
private SubscriptionToken AddSubscriptionInternal <TMessage>(Action <TMessage> deliveryAction, Func <TMessage, bool> messageFilter, bool strongReference, IMapleMessageProxy proxy)
where TMessage : class, IMapleMessage
{
if (deliveryAction == null)
{
throw new ArgumentNullException(nameof(deliveryAction), $"{nameof(deliveryAction)} {Resources.IsRequired}");
}
if (messageFilter == null)
{
throw new ArgumentNullException(nameof(messageFilter), $"{nameof(messageFilter)} {Resources.IsRequired}");
}
if (proxy == null)
{
throw new ArgumentNullException(nameof(proxy), $"{nameof(proxy)} {Resources.IsRequired}");
}
lock (_SubscriptionsPadlock)
{
var subscriptionToken = new SubscriptionToken(this, typeof(TMessage));
IMapleMessageSubscription subscription;
if (strongReference)
{
subscription = new StrongMapleMessageSubscription <TMessage>(_translationProvider, subscriptionToken, deliveryAction, messageFilter);
}
else
{
subscription = new WeakMapleMessageSubscription <TMessage>(_translationProvider, subscriptionToken, deliveryAction, messageFilter);
}
_subscriptions.Add(new SubscriptionItem(proxy, subscription));
return(subscriptionToken);
}
}
public void Unsubscribe <TMessage>(SubscriptionToken subscriptionToken)
where TMessage : class, IMapleMessage
{
RemoveSubscriptionInternal <TMessage>(subscriptionToken);
}
public StrongMapleMessageSubscription(ITranslationProvider translationProvider, SubscriptionToken subscriptionToken, Action <TMessage> deliveryAction, Func <TMessage, bool> messageFilter)
{
SubscriptionToken = subscriptionToken ?? throw new ArgumentNullException(nameof(subscriptionToken), $"{nameof(subscriptionToken)} {Resources.IsRequired}");
DeliveryAction = deliveryAction ?? throw new ArgumentNullException(nameof(deliveryAction), $"{nameof(deliveryAction)} {Resources.IsRequired}");
MessageFilter = messageFilter ?? throw new ArgumentNullException(nameof(messageFilter), $"{nameof(messageFilter)} {Resources.IsRequired}");
_translationProvider = translationProvider ?? throw new ArgumentNullException(nameof(translationProvider), $"{nameof(translationProvider)} {Resources.IsRequired}");
}
