/**
  * Gets the pages in a site plus additional pages that may have been
  * configured.
  *
  * @return array A (sorted) array of page IDs in a site
  */
 protected function getPages()
 {
     $pages = $this->site->getPages();
     $additionalPageIds = array();
     if (!empty($this->indexingConfiguration['additionalPageIds'])) {
         $additionalPageIds = GeneralUtility::intExplode(',', $this->indexingConfiguration['additionalPageIds']);
     }
     $pages = array_merge($pages, $additionalPageIds);
     sort($pages, SORT_NUMERIC);
     return $pages;
 }