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Add server events for subscribed and unsubscribed topics. Add pending messages count for connected clients.

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This commit is contained in:
Christian
2018-02-02 22:44:21 +01:00
parent a204d233f6
commit 59dcbf4c0c
12 changed files with 205 additions and 74 deletions
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Frameworks/MQTTnet.NetStandard/Server/MqttServer.cs
+31 -12
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@@ -27,8 +27,12 @@ namespace MQTTnet.Server
}
public event EventHandler<MqttServerStartedEventArgs> Started;
public event EventHandler<MqttClientConnectedEventArgs> ClientConnected;
public event EventHandler<MqttClientDisconnectedEventArgs> ClientDisconnected;
public event EventHandler<MqttClientSubscribedTopicEventArgs> ClientSubscribedTopic;
public event EventHandler<MqttClientUnsubscribedTopicEventArgs> ClientUnsubscribedTopic;
public event EventHandler<MqttApplicationMessageReceivedEventArgs> ApplicationMessageReceived;
public Task<IList<ConnectedMqttClient>> GetConnectedClientsAsync()
@@ -71,11 +75,19 @@ namespace MQTTnet.Server
if (_cancellationTokenSource != null) throw new InvalidOperationException("The server is already started.");
_cancellationTokenSource = new CancellationTokenSource();
_retainedMessagesManager = new MqttRetainedMessagesManager(_options, _logger);
_clientSessionsManager = new MqttClientSessionsManager(_options, _retainedMessagesManager, this, _logger);
_retainedMessagesManager = new MqttRetainedMessagesManager(_options, _logger);
await _retainedMessagesManager.LoadMessagesAsync();
_clientSessionsManager = new MqttClientSessionsManager(_options, _retainedMessagesManager, _logger)
{
ClientConnectedCallback = OnClientConnected,
ClientDisconnectedCallback = OnClientDisconnected,
ClientSubscribedTopicCallback = OnClientSubscribedTopic,
ClientUnsubscribedTopicCallback = OnClientUnsubscribedTopic,
ApplicationMessageReceivedCallback = OnApplicationMessageReceived
};
foreach (var adapter in _adapters)
{
adapter.ClientAccepted += OnClientAccepted;
@@ -110,39 +122,46 @@ namespace MQTTnet.Server
}
finally
{
_clientSessionsManager?.Dispose();
_retainedMessagesManager?.Dispose();
_cancellationTokenSource = null;
_retainedMessagesManager = null;
_clientSessionsManager = null;
}
}
internal void OnClientConnected(ConnectedMqttClient client)
private void OnClientConnected(ConnectedMqttClient client)
{
if (client == null) throw new ArgumentNullException(nameof(client));
_logger.Info<MqttServer>("Client '{0}': Connected.", client.ClientId);
ClientConnected?.Invoke(this, new MqttClientConnectedEventArgs(client));
}
internal void OnClientDisconnected(ConnectedMqttClient client)
private void OnClientDisconnected(ConnectedMqttClient client)
{
if (client == null) throw new ArgumentNullException(nameof(client));
_logger.Info<MqttServer>("Client '{0}': Disconnected.", client.ClientId);
ClientDisconnected?.Invoke(this, new MqttClientDisconnectedEventArgs(client));
}
internal void OnApplicationMessageReceived(string clientId, MqttApplicationMessage applicationMessage)
private void OnClientSubscribedTopic(string clientId, TopicFilter topicFilter)
{
if (applicationMessage == null) throw new ArgumentNullException(nameof(applicationMessage));
ClientSubscribedTopic?.Invoke(this, new MqttClientSubscribedTopicEventArgs(clientId, topicFilter));
}
private void OnClientUnsubscribedTopic(string clientId, string topicFilter)
{
ClientUnsubscribedTopic?.Invoke(this, new MqttClientUnsubscribedTopicEventArgs(clientId, topicFilter));
}
private void OnApplicationMessageReceived(string clientId, MqttApplicationMessage applicationMessage)
{
ApplicationMessageReceived?.Invoke(this, new MqttApplicationMessageReceivedEventArgs(clientId, applicationMessage));
}
private void OnClientAccepted(object sender, MqttServerAdapterClientAcceptedEventArgs eventArgs)
{
eventArgs.SessionTask = Task.Run(
async () => await _clientSessionsManager.RunClientSessionAsync(eventArgs.Client, _cancellationTokenSource.Token).ConfigureAwait(false),
async () => await _clientSessionsManager.RunSessionAsync(eventArgs.Client, _cancellationTokenSource.Token).ConfigureAwait(false),
_cancellationTokenSource.Token);
}
}