public function generateSitemap()
	{
		/** @var Symfony\Component\HttpFoundation\Session\SessionInterface $objSession */
		$objSession = Contao\System::getContainer()->get('session');

		$session = $objSession->get('sitemap_updater');

		if (empty($session) || !\is_array($session))
		{
			return;
		}

		$this->import('Contao\Automator', 'Automator');

		foreach ($session as $id)
		{
			$this->Automator->generateSitemap($id);
		}

		$objSession->set('sitemap_updater', null);
	}