public async Task OnConnectionLostAsync(IMqttPersisterConnection connection, MqttClientConnectionEventArgs args)
{
if (args != null && args.IsReConnected)
{
if (args.DisconnectReason == Client.Disconnecting.MqttClientDisconnectReason.NormalDisconnection)
{
await ReSubscribeAllAsync();
}
}
}
private Task InvokeClientConnectionChangedMethod(MqttClientConnectionEventArgs args)
{
var handler = ClientConnectionChanged;
if (handler != null)
{
return(handler.Invoke(this, args));
}
return(Task.CompletedTask);
}
private Task OnConnectedAsync(MqttClientConnectedEventArgs e)
{
if (_disconnectionCache.TryGetValue(_options.ClientId, out var args))
{
if (!args.IsReConnected)
{
_logger.LogInformation($"A MqttServer '{_options.ClientId}' trying to connect...");
args.MarkAsConnected();
return(InvokeClientConnectionChangedMethod(args));
}
}
else
{
_disconnectionCache.Add(_options.ClientId, MqttClientConnectionEventArgs.Connected(_options.ClientId));
}
return(Task.CompletedTask);
}
private async Task OnDisconnectedAsync(MqttClientDisconnectedEventArgs e)
{
if (_disposed)
{
return;
}
_logger.LogWarning($"A MqttServer '{_options.ClientId}' connection is shutdown, Reason: {e.Reason}. Trying to re-connect...");
if (_disconnectionCache.TryGetValue(_options.ClientId, out var args))
{
if (args.IsReConnected)
{
args.MarkAsDisconnected();
await InvokeClientConnectionChangedMethod(args);
}
}
else
{
_disconnectionCache.Add(_options.ClientId, MqttClientConnectionEventArgs.Disconnected(_options.ClientId, e.Reason));
await InvokeClientConnectionChangedMethod(args);
}
await TryConnectAsync(true);
}