/**
  * 
  * @return \webignition\WebResource\Sitemap\Sitemap
  */
 protected function createSitemap()
 {
     $configuration = new SitemapConfiguration();
     $configuration->setTypeToUrlExtractorClassMap(array('sitemaps.org.xml' => 'webignition\\WebResource\\Sitemap\\UrlExtractor\\SitemapsOrgXmlUrlExtractor', 'sitemaps.org.txt' => 'webignition\\WebResource\\Sitemap\\UrlExtractor\\SitemapsOrgTxtUrlExtractor', 'application/atom+xml' => 'webignition\\WebResource\\Sitemap\\UrlExtractor\\NewsFeedUrlExtractor', 'application/rss+xml' => 'webignition\\WebResource\\Sitemap\\UrlExtractor\\NewsFeedUrlExtractor', 'sitemaps.org.xml.index' => 'webignition\\WebResource\\Sitemap\\UrlExtractor\\SitemapsOrgXmlIndexUrlExtractor'));
     $sitemap = new Sitemap();
     $sitemap->setConfiguration($configuration);
     return $sitemap;
 }