public function createProgressAsyncMessage(__IComponent &$component)
 {
     $command = new __AsyncMessageCommand();
     $command->setClass('__UpdateProgressIndicatorCommand');
     $command->setData(array('code' => $component->getId(), 'progress' => $component->getProgress()));
     $return_value = new __AsyncMessage();
     $return_value->addCommand($command);
     return $return_value;
 }