ComponentController::exec

public function exec()
{
	$this->request = Context::getCurrent()->getRequest();
	$this->action = $this->request->get('action');

	$this->prepareRequestData();

	if($this->check())
	{
		call_user_func_array($this->getActionCall(), array($this->requestData));
	}
	$this->giveResponse();
}