private void fire_notification(Subscriber subscriber, string callbackUri, string role, bool alive)
{
try
{
subscriber.OnPubSub(callbackUri, role, alive);
}
catch (Exception ex)
{
warn(ex, "Failed while notifying proxy.{0}", subscriber.Tag);
}
}
private void update_subscriber(Subscriber subscriber)
{
var peers = _self.repo.GetPeers();
int count = peers.Length;
foreach (var peer in peers)
{
fire_notification(subscriber, peer.CallbackUri, peer.Role, true);
}
_counters.Discovery_Event_HelloNotificationsProduced += count;
trace("{0} hello notifications are generated", count);
}
void IManager.Subscribe(Subscriber subscriber)
{
_self.repo.Add(subscriber);
update_subscriber(subscriber);
trace("proxy.{0} is subscribed", subscriber.Tag);
}
void IHostResolver.Subscribe(PubSubHandler onPubSub, string tag)
{
var subscriber = new Subscriber
{
OnPubSub = onPubSub,
Tag = tag
};
subscribe(subscriber);
}
private void subscribe(Subscriber subscriber)
{
_self.thread.PostAction(
() => _manager.Subscribe(subscriber));
}
void IRepository.Remove(Subscriber subscriber)
{
bool wasThere = _subscribers.Remove(subscriber);
if (wasThere)
_counters.Discovery_State_ActiveSubscribers--;
}
void IRepository.Add(Subscriber subscriber)
{
_subscribers.Add(subscriber);
_counters.Discovery_State_ActiveSubscribers++;
}