public void AddOrUpdate(Guid id, SubscriptionEntry subscription)
{
var connectionSubscriptions =
dictionary.AddOrUpdate(id,
connection =>
{
var handler = SubscriptionAdded;
if (handler != null)
{
handler.Invoke(subscription, EventArgs.Empty);
}
return(subscription);
},
(connection, oldSubscription) =>
{
oldSubscription.Subscription = subscription.Subscription;
oldSubscription.PendingUpdate = subscription.PendingUpdate;
var handler = SubscriptionUpdated;
if (handler != null)
{
handler.Invoke(oldSubscription, EventArgs.Empty);
}
return(oldSubscription);
});
}
public void Subscribe(Subscription subscription)
{
var connection = Context.ConnectionId;
var subscriptionEntry = new SubscriptionEntry(subscription, Clients.Client(connection));
subscriptionEntry.PendingUpdate = true;
subscriptions.AddOrUpdate(Guid.Parse(connection), subscriptionEntry);
}
private bool UpdateSubscription(SubscriptionEntry subscription, DateTime currentTime)
{
if (subscription.PendingUpdate)
{
return(true);
}
if (subscription.LastUpdateTime == null)
{
return(true);
}
if (currentTime - subscription.LastUpdateTime > updateInterval)
{
return(true);
}
return(false);
}