public void SendMulticastData(Interactor publisher, MulticastData multicastData)
{
_publisherManager.SendMulticastData(
publisher,
_repository.GetSubscribersToFeedAndTopic(multicastData.Feed, multicastData.Topic),
multicastData);
}
private void OnStaleTopic(FeedTopic staleFeedTopic)
{
var staleMessage = new MulticastData(staleFeedTopic.Feed, staleFeedTopic.Topic, true, null);
foreach (var subscriber in _repository.GetSubscribersToFeedAndTopic(staleFeedTopic.Feed, staleFeedTopic.Topic))
{
subscriber.SendMessage(staleMessage);
}
}
private void RaiseOnDataOrHeartbeat(MulticastData message)
{
if (message.Feed == "__admin__" && message.Topic == "heartbeat")
{
RaiseOnHeartbeat();
}
else
{
RaiseOnData(message.Feed, message.Topic, message.Data, message.IsImage);
}
}
public void TestHeartbeat()
{
using (var stream = new MemoryStream())
{
var source = new MulticastData(
"__admin__",
"heartbeat",
true,
null);
source.Write(new DataWriter(stream));
stream.Seek(0, SeekOrigin.Begin);
var dest = Message.Read(new DataReader(stream));
Assert.AreEqual(source, dest);
}
}
public void TestPayload()
{
using (var stream = new MemoryStream())
{
var source = new MulticastData(
"__admin__",
"heartbeat",
true,
new DataPacket[]
{
new DataPacket(
new HashSet <int> {
1
},
new byte[] { 1, 2, 3, 4, 5, 6 })
});
source.Write(new DataWriter(stream));
stream.Seek(0, SeekOrigin.Begin);
var dest = Message.Read(new DataReader(stream));
Assert.AreEqual(source, dest);
}
}
private void SendMulticastData(IInteractor publisher, IInteractor subscriber, MulticastData multicastData)
{
if (publisher != null)
{
_repository.AddPublisher(publisher, multicastData.Feed, multicastData.Topic);
}
subscriber.SendMessage(multicastData);
}
public void SendMulticastData(IInteractor publisher, IEnumerable <IInteractor> subscribers, MulticastData multicastData)
{
foreach (var subscriber in subscribers)
{
SendMulticastData(publisher, subscriber, multicastData);
}
}
public void SendMulticastData(Interactor?publisher, IEnumerable <KeyValuePair <Interactor, AuthorizationInfo> > subscribers, MulticastData multicastData)
{
if (!(publisher == null || publisher.HasRole(multicastData.Feed, Role.Publish)))
{
_logger.LogWarning("Rejected request from {Publisher} to publish to Feed {Feed}", publisher, multicastData.Feed);
return;
}
if (publisher != null)
{
publisher.Metrics.MulticastMessages[multicastData.Feed].Inc();
}
foreach (var subscriberAndAuthorizationInfo in subscribers)
{
var subscriber = subscriberAndAuthorizationInfo.Key;
var authorization = subscriberAndAuthorizationInfo.Value;
var subscriberMulticastData = new ForwardedMulticastData(
publisher?.UserForFeed(multicastData.Feed) ?? "internal",
publisher?.HostForFeed(multicastData.Feed) ?? "localhost",
multicastData.Feed,
multicastData.Topic,
multicastData.IsImage,
GetAuthorizedData(multicastData.DataPackets, authorization));
_logger.LogDebug("Sending multicast data from {Publisher} to {Subscriber}: {Message}", publisher, subscriber, subscriberMulticastData);
if (publisher != null)
{
_repository.AddPublisher(publisher, subscriberMulticastData.Feed, subscriberMulticastData.Topic);
}
try
{
subscriber.SendMessage(subscriberMulticastData);
}
catch (Exception error)
{
_logger.LogDebug(error, "Failed to send to subscriber {Subscriber} multicast data {Message}", subscriber, subscriberMulticastData);
}
}
}
public void SendMulticastData(IInteractor publisher, IEnumerable <KeyValuePair <IInteractor, AuthorizationInfo> > subscribers, MulticastData multicastData)
{
if (!(publisher == null || publisher.HasRole(multicastData.Feed, Role.Publish)))
{
Log.Warn($"Rejected request from {publisher} to publish to Feed {multicastData.Feed}");
return;
}
foreach (var subscriberAndAuthorizationInfo in subscribers)
{
var subscriber = subscriberAndAuthorizationInfo.Key;
var authorizationInfo = subscriberAndAuthorizationInfo.Value;
var subscriberMulticastData =
subscriberAndAuthorizationInfo.Value.IsAuthorizationRequired
? new ForwardedMulticastData(publisher?.User ?? "internal", publisher?.Address ?? IPAddress.None, multicastData.Feed, multicastData.Topic, multicastData.IsImage, FilterDataPackets(authorizationInfo.Entitlements, multicastData.Data))
: new ForwardedMulticastData(publisher?.User ?? "internal", publisher?.Address ?? IPAddress.None, multicastData.Feed, multicastData.Topic, multicastData.IsImage, multicastData.Data);
Log.Debug($"Sending multicast data from {publisher} to {subscriber}: {subscriberMulticastData}");
if (publisher != null)
{
_repository.AddPublisher(publisher, subscriberMulticastData.Feed, subscriberMulticastData.Topic);
}
try
{
subscriber.SendMessage(subscriberMulticastData);
}
catch (Exception exception)
{
Log.Debug($"Failed to send to subscriber {subscriber} multicast data {subscriberMulticastData}", exception);
}
}
}