/// <summary>
/// Closes component and frees used resources.
/// </summary>
/// <param name="correlationId">(optional) transaction id to trace execution through call chain.</param>
public override async Task CloseAsync(string correlationId)
{
if (!IsOpen())
{
return;
}
if (_connection == null)
{
throw new InvalidStateException(correlationId, "NO_CONNECTION", "MQTT connection is missing");
}
if (_localConnection)
{
await _connection.CloseAsync(correlationId);
}
_opened = false;
await base.CloseAsync(correlationId);
}