public MqttClientSession(
string clientId,
IMqttServerOptions options,
MqttClientSessionsManager sessionsManager,
MqttRetainedMessagesManager retainedMessagesManager,
MqttServerEventDispatcher eventDispatcher,
IMqttNetChildLogger logger)
{
if (logger == null)
{
throw new ArgumentNullException(nameof(logger));
}
_options = options ?? throw new ArgumentNullException(nameof(options));
_sessionsManager = sessionsManager ?? throw new ArgumentNullException(nameof(sessionsManager));
_retainedMessagesManager = retainedMessagesManager ?? throw new ArgumentNullException(nameof(retainedMessagesManager));
_eventDispatcher = eventDispatcher ?? throw new ArgumentNullException(nameof(eventDispatcher));
ClientId = clientId;
_logger = logger.CreateChildLogger(nameof(MqttClientSession));
_keepAliveMonitor = new MqttClientKeepAliveMonitor(this, _logger);
_subscriptionsManager = new MqttClientSubscriptionsManager(clientId, _options, eventDispatcher);
_pendingPacketsQueue = new MqttClientPendingPacketsQueue(_options, this, _logger);
}
public async Task StartAsync(IMqttServerOptions options)
{
Options = options ?? throw new ArgumentNullException(nameof(options));
if (_cancellationTokenSource != null)
{
throw new InvalidOperationException("The server is already started.");
}
_cancellationTokenSource = new CancellationTokenSource();
_retainedMessagesManager = new MqttRetainedMessagesManager(Options, _logger);
await _retainedMessagesManager.LoadMessagesAsync().ConfigureAwait(false);
_clientSessionsManager = new MqttClientSessionsManager(Options, _retainedMessagesManager, _cancellationTokenSource.Token, _eventDispatcher, _logger);
_clientSessionsManager.Start();
foreach (var adapter in _adapters)
{
adapter.ClientAccepted += OnClientAccepted;
await adapter.StartAsync(Options).ConfigureAwait(false);
}
_logger.Info("Started.");
Started?.Invoke(this, EventArgs.Empty);
}
public async Task StopAsync()
{
try
{
if (_cancellationTokenSource == null)
{
return;
}
_cancellationTokenSource.Cancel(false);
_clientSessionsManager.Stop();
foreach (var adapter in _adapters)
{
adapter.ClientAccepted -= OnClientAccepted;
await adapter.StopAsync().ConfigureAwait(false);
}
_logger.Info("Stopped.");
Stopped?.Invoke(this, EventArgs.Empty);
}
finally
{
_cancellationTokenSource?.Dispose();
_cancellationTokenSource = null;
_retainedMessagesManager = null;
_clientSessionsManager?.Dispose();
_clientSessionsManager = null;
}
}
public MqttClientSessionsManager(
IMqttServerOptions options,
MqttRetainedMessagesManager retainedMessagesManager,
CancellationToken cancellationToken,
MqttServerEventDispatcher eventDispatcher,
IMqttNetChildLogger logger)
{
_cancellationToken = cancellationToken;
if (logger == null)
{
throw new ArgumentNullException(nameof(logger));
}
_logger = logger.CreateChildLogger(nameof(MqttClientSessionsManager));
_eventDispatcher = eventDispatcher ?? throw new ArgumentNullException(nameof(eventDispatcher));
_options = options ?? throw new ArgumentNullException(nameof(options));
_retainedMessagesManager = retainedMessagesManager ?? throw new ArgumentNullException(nameof(retainedMessagesManager));
}
