public MqttClient(
MqttConnectPacket connectPacket,
IMqttChannelAdapter channelAdapter,
MqttSession session,
MqttServerOptions serverOptions,
MqttServerEventContainer eventContainer,
MqttClientSessionsManager sessionsManager,
IMqttNetLogger logger)
{
_serverOptions = serverOptions ?? throw new ArgumentNullException(nameof(serverOptions));
_eventContainer = eventContainer;
_sessionsManager = sessionsManager ?? throw new ArgumentNullException(nameof(sessionsManager));
ChannelAdapter = channelAdapter ?? throw new ArgumentNullException(nameof(channelAdapter));
Endpoint = channelAdapter.Endpoint;
Session = session ?? throw new ArgumentNullException(nameof(session));
_connectPacket = connectPacket ?? throw new ArgumentNullException(nameof(connectPacket));
if (logger == null)
{
throw new ArgumentNullException(nameof(logger));
}
_logger = logger.WithSource(nameof(MqttClient));
}
async Task <List <string> > PrepareTopicHashSubscriptions(TopicHashSelector selector)
{
Dictionary <string, List <string> > topicsByPublisher;
Dictionary <string, List <string> > singleWildcardTopicsByPublisher;
Dictionary <string, List <string> > multiWildcardTopicsByPublisher;
const int NumPublishers = 1;
const int NumTopicsPerPublisher = 10000;
TopicGenerator.Generate(NumPublishers, NumTopicsPerPublisher, out topicsByPublisher, out singleWildcardTopicsByPublisher, out multiWildcardTopicsByPublisher);
var topics = topicsByPublisher.FirstOrDefault().Value;
var singleWildcardTopics = singleWildcardTopicsByPublisher.FirstOrDefault().Value;
var multiWildcardTopics = multiWildcardTopicsByPublisher.FirstOrDefault().Value;
const string ClientId = "Client1";
var logger = new Mockups.TestLogger();
var serverOptions = new MQTTnet.Server.MqttServerOptions();
var eventContainer = new MQTTnet.Server.MqttServerEventContainer();
var retainedMessagesManager = new MqttRetainedMessagesManager(eventContainer, logger);
var sessionManager = new MqttClientSessionsManager(serverOptions, retainedMessagesManager, eventContainer, logger);
_clientSession = new MQTTnet.Server.MqttSession(
ClientId,
false,
new Dictionary <object, object>(),
serverOptions,
eventContainer,
retainedMessagesManager,
sessionManager
);
List <string> topicsToSubscribe;
switch (selector)
{
case TopicHashSelector.SingleWildcard:
topicsToSubscribe = singleWildcardTopics;
break;
case TopicHashSelector.MultiWildcard:
topicsToSubscribe = multiWildcardTopics;
break;
default:
topicsToSubscribe = topics;
break;
}
foreach (var t in topicsToSubscribe)
{
var subPacket = new Packets.MqttSubscribePacket();
var filter = new Packets.MqttTopicFilter();
filter.Topic = t;
subPacket.TopicFilters.Add(filter);
await _clientSession.SubscriptionsManager.Subscribe(subPacket, default(CancellationToken));
}
return(topics);
}
public MqttClientSubscriptionsManager(
MqttSession session,
MqttServerEventContainer eventContainer,
MqttRetainedMessagesManager retainedMessagesManager,
ISubscriptionChangedNotification subscriptionChangedNotification)
{
_session = session ?? throw new ArgumentNullException(nameof(session));
_eventContainer = eventContainer ?? throw new ArgumentNullException(nameof(eventContainer));
_retainedMessagesManager = retainedMessagesManager ?? throw new ArgumentNullException(nameof(retainedMessagesManager));
_subscriptionChangedNotification = subscriptionChangedNotification;
}
public void OnSubscriptionsRemoved(MqttSession clientSession, List <string> subscriptionTopics)
{
lock (_sessionsManagementLock)
{
foreach (var subscriptionTopic in subscriptionTopics)
{
clientSession.RemoveSubscribedTopic(subscriptionTopic);
}
if (!clientSession.HasSubscribedTopics)
{
// last subscription removed
_subscriberSessions.Remove(clientSession);
}
}
}
public void OnSubscriptionsAdded(MqttSession clientSession, List <string> topics)
{
lock (_sessionsManagementLock)
{
if (!clientSession.HasSubscribedTopics)
{
// first subscribed topic
_subscriberSessions.Add(clientSession);
}
foreach (var topic in topics)
{
clientSession.AddSubscribedTopic(topic);
}
}
}
int CheckTopicSubscriptions(MQTTnet.Server.MqttSession clientSession, List <string> topicsToFind, string subject)
{
var matchCount = 0;
{
int resultCount = 0;
var stopWatch = new System.Diagnostics.Stopwatch();
stopWatch.Start();
var countUp = 0;
var countDown = topicsToFind.Count - 1;
for (; countUp < topicsToFind.Count; ++countUp, --countDown)
{
var topicToFind = topicsToFind[countDown];
UInt64 topicHash;
UInt64 hashMask;
bool hasWildcard;
MQTTnet.Server.MqttSubscription.CalculateTopicHash((string)topicToFind, out topicHash, out hashMask, out hasWildcard);
var result = clientSession.SubscriptionsManager.CheckSubscriptions((string)topicToFind, topicHash, MqttQualityOfServiceLevel.AtMostOnce, "OtherClient");
if (result.IsSubscribed)
{
++matchCount;
}
++resultCount;
}
stopWatch.Stop();
Console.Write("Match count: " + matchCount + "; ");
Console.WriteLine(subject + " lookup milliseconds: " + stopWatch.ElapsedMilliseconds);
}
return(matchCount);
}
MqttClient CreateConnection(MqttConnectPacket connectPacket, IMqttChannelAdapter channelAdapter, MqttSession session)
{
return(new MqttClient(connectPacket, channelAdapter, session, _options, _eventContainer, this, _rootLogger));
}
public MqttSessionStatus(MqttSession session)
{
_session = session ?? throw new ArgumentNullException(nameof(session));
}