private static function updateSiteIdMappings()
 {
     WebtopNaming::$siteIdTable = array();
     $serverSet = WebtopNaming::$namingTable[Constants::SITE_ID_LIST];
     if ($serverSet == null || strlen($serverSet) == 0) {
         return;
     }
     $st = explode($serverSet, ",");
     foreach ($st as $serverId) {
         $siteid = $serverId;
         $idx = strpos($serverId, NODE_SEPARATOR);
         if ($idx) {
             $siteid = substr($serverId, $idx + 1, strlen($serverId));
             $serverId = substr($serverId, 0, $idx);
         }
         WebtopNaming::$siteIdTable[$serverId] = $siteid;
     }
     //        if (debug.messageEnabled())
     //            debug.message("SiteID table -> " + siteIdTable.toString());
 }