/// <summary>
/// Opens the component with given connection and credential parameters.
/// </summary>
/// <param name="correlationId">(optional) transaction id to trace execution through call chain.</param>
public async override Task OpenAsync(string correlationId)
{
if (IsOpen())
{
return;
}
if (_connection == null)
{
_connection = CreateConnection();
_localConnection = true;
}
if (_localConnection)
{
await _connection.OpenAsync(correlationId);
}
if (!_connection.IsOpen())
{
throw new InvalidStateException(correlationId, "CONNECT_FAILED", "MQTT connection is not opened");
}
await base.OpenAsync(correlationId);
_opened = true;
}