public void OnNewNotificationRequest(object?sender, NotificationEventArgs args)
{
// Find the subscribers who's subscriptions match the pattern.
foreach (var matchingSubscriptions in _repository.GetSubscribersToFeed(args.Feed))
{
// Tell the requestor about subscribers that are interested in this topic.
foreach (var subscriber in matchingSubscriptions.Value)
{
var message = new ForwardedSubscriptionRequest(
subscriber.UserForFeed(args.Feed),
subscriber.HostForFeed(args.Feed),
subscriber.Id,
args.Feed,
matchingSubscriptions.Key, true);
try
{
args.Interactor.SendMessage(message);
}
catch (Exception error)
{
_logger.LogDebug(error, "Failed to inform {subscriber} regarding {Message}", message);
}
}
}
}
internal void ForwardSubscription(IInteractor subscriber, SubscriptionRequest subscriptionRequest)
{
// Find all the interactors that wish to be notified of subscriptions to this topic.
var notifiables = _repository.FindNotifiables(subscriptionRequest.Feed);
if (notifiables == null)
{
return;
}
var forwardedSubscriptionRequest = new ForwardedSubscriptionRequest(subscriber.User, subscriber.Address, subscriber.Id, subscriptionRequest.Feed, subscriptionRequest.Topic, subscriptionRequest.IsAdd);
Log.Debug($"Notifying interactors[{string.Join(",", notifiables)}] of subscription {forwardedSubscriptionRequest}");
// Inform each notifiable interactor of the subscription request.
foreach (var notifiable in notifiables)
{
try
{
notifiable.SendMessage(forwardedSubscriptionRequest);
}
catch (Exception exception)
{
Log.Debug($"Failed to notify {notifiable} regarding {forwardedSubscriptionRequest}", exception);
}
}
}
internal void ForwardSubscription(Interactor subscriber, SubscriptionRequest subscriptionRequest)
{
// Find all the interactors that wish to be notified of subscriptions to this topic.
var notifiables = _repository.FindNotifiables(subscriptionRequest.Feed);
if (notifiables == null)
{
return;
}
subscriber.Metrics.ForwardedSubscriptions[subscriptionRequest.Feed].Inc();
var forwardedSubscriptionRequest = new ForwardedSubscriptionRequest(
subscriber.UserForFeed(subscriptionRequest.Feed),
subscriber.HostForFeed(subscriptionRequest.Feed),
subscriber.Id,
subscriptionRequest.Feed,
subscriptionRequest.Topic,
subscriptionRequest.IsAdd);
_logger.LogDebug("Notifying interactors[{Interactors}] of subscription {Message}", string.Join(",", notifiables), forwardedSubscriptionRequest);
// Inform each notifiable interactor of the subscription request.
foreach (var notifiable in notifiables)
{
try
{
notifiable.SendMessage(forwardedSubscriptionRequest);
}
catch (Exception error)
{
_logger.LogDebug(error, "Failed to notify {Notifiable} regarding {Message}", notifiable, forwardedSubscriptionRequest);
}
}
}
public void TestRemoveForwardedSubscriptionRequest()
{
using (var stream = new MemoryStream())
{
var source = new ForwardedSubscriptionRequest("USER", "HOST", Guid.NewGuid(), "FOO", "bar", false);
source.Write(new DataWriter(stream));
stream.Seek(0, SeekOrigin.Begin);
var dest = Message.Read(new DataReader(stream));
Assert.AreEqual(source, dest);
}
}
private void RaiseOnForwardedSubscriptionRequest(ForwardedSubscriptionRequest message)
{
OnForwardedSubscription?.Invoke(
this,
new ForwardedSubscriptionEventArgs(
message.User,
message.Host,
message.ClientId,
message.Feed,
message.Topic,
message.IsAdd));
}
public void ForwardSubscription(ForwardedSubscriptionRequest forwardedSubscriptionRequest)
{
// Find all the interactors that wish to be notified of subscriptions to this topic.
var notifiables = _repository.FindNotifiables(forwardedSubscriptionRequest.Feed);
if (notifiables == null)
{
return;
}
Log.Debug($"Notifying interactors[{string.Join(",", notifiables)}] of subscription {forwardedSubscriptionRequest}");
// Inform each notifiable interactor of the subscription request.
foreach (var notifiable in notifiables)
{
notifiable.SendMessage(forwardedSubscriptionRequest);
}
}
internal void OnNewNotificationRequest(object sender, NotificationEventArgs args)
{
// Find the subscribers whoes subscriptions match the pattern.
foreach (var matchingSubscriptions in _repository.GetSubscribersToFeed(args.Feed))
{
// Tell the requestor about subscribers that are interested in this topic.
foreach (var subscriber in matchingSubscriptions.Value)
{
var message = new ForwardedSubscriptionRequest(subscriber.User, subscriber.Address, subscriber.Id, args.Feed, matchingSubscriptions.Key, true);
try
{
args.Interactor.SendMessage(message);
}
catch (Exception exception)
{
Log.Debug($"Failed to inform {subscriber} regarding {message}", exception);
}
}
}
}
