private function index(array $aPath)
 {
     $oNavigationItem = $this->oRootNavigationItem;
     PageNavigationItem::clearCache();
     while (count($aPath) > 0) {
         $oNavigationItem = $oNavigationItem->namedChild(array_shift($aPath), $this->sLanguageId, true, true);
     }
     FilterModule::getFilters()->handleNavigationPathFound($this->oRootNavigationItem, $oNavigationItem);
     FrontendManager::$CURRENT_NAVIGATION_ITEM = $oNavigationItem;
     $oPageNavigationItem = $oNavigationItem;
     while (!$oPageNavigationItem instanceof PageNavigationItem) {
         $oPageNavigationItem = $oPageNavigationItem->getParent();
     }
     FrontendManager::$CURRENT_PAGE = $oPageNavigationItem->getMe();
     $oPage = FrontendManager::$CURRENT_PAGE;
     $bIsNotFound = false;
     FilterModule::getFilters()->handlePageHasBeenSet($oPage, $bIsNotFound, $oNavigationItem);
     FilterModule::getFilters()->handleRequestStarted();
     FilterModule::getFilters()->handlePageNotFoundDetectionComplete($bIsNotFound, $oPage, $oNavigationItem, array(&$bIsNotFound));
     if ($bIsNotFound) {
         return false;
     }
     $sDescription = $oNavigationItem->getDescription($this->sLanguageId);
     if ($sDescription === null) {
         $sDescription = $oPage->getDescription($this->sLanguageId);
     }
     $aKeywords = array();
     foreach ($oPage->getConsolidatedKeywords($this->sLanguageId, true) as $sKeyword) {
         $aKeywords = array_merge($aKeywords, StringUtil::getWords($sKeyword));
     }
     $sTitle = $oNavigationItem->getTitle($this->sLanguageId);
     $sLinkText = $oNavigationItem->getLinkText($this->sLanguageId);
     if (!$sLinkText) {
         $sLinkText = $sTitle;
     }
     $sName = $oNavigationItem->getName();
     // Page type can prevent indexing
     if (!self::doIndex($oPage->getPageType(), $oNavigationItem)) {
         return false;
     }
     $oPageType = PageTypeModule::getModuleInstance($oPage->getPageType(), $oPage, $oNavigationItem);
     $aWords = $oPageType->getWords();
     $aWords = array_merge($aWords, StringUtil::getWords($sDescription), $aKeywords, StringUtil::getWords($sTitle), StringUtil::getWords($sLinkText), array($sName));
     $aPagePath = $oPage->getLink();
     $aNavigationItemPath = $oNavigationItem->getLink();
     $sPath = implode('/', array_diff($aNavigationItemPath, $aPagePath));
     $oSearchIndex = new SearchIndex();
     $oSearchIndex->setPageId($oPage->getId());
     $oSearchIndex->setPath($sPath);
     $oSearchIndex->setLinkText($sLinkText);
     $oSearchIndex->setPageTitle($sTitle);
     $oSearchIndex->setLanguageId($this->sLanguageId);
     $oSearchIndex->save();
     foreach ($aWords as $sWord) {
         $sWord = Synonyms::rootFor($sWord, $this->sLanguageId);
         $oSearchIndexWord = SearchIndexWordQuery::create()->filterBySearchIndex($oSearchIndex)->filterByWord($sWord)->findOne();
         if ($oSearchIndexWord === null) {
             $oSearchIndexWord = new SearchIndexWord();
             $oSearchIndexWord->setSearchIndex($oSearchIndex);
             $oSearchIndexWord->setWord($sWord);
         } else {
             $oSearchIndexWord->incrementCount();
         }
         $oSearchIndexWord->save();
     }
     return true;
 }