/**
  * Update edge server by id 
  * 
  * @action update
  * @param int $edgeServerId
  * @param KalturaEdgeServer $edgeServer
  * @return KalturaEdgeServer
  */
 function updateAction($edgeServerId, KalturaEdgeServer $edgeServer)
 {
     $dbEdgeServer = EdgeServerPeer::retrieveByPK($edgeServerId);
     if (!$dbEdgeServer) {
         throw new KalturaAPIException(KalturaErrors::INVALID_OBJECT_ID, $edgeServerId);
     }
     $dbEdgeServer = $edgeServer->toUpdatableObject($dbEdgeServer);
     $dbEdgeServer->save();
     $edgeServer = new KalturaEdgeServer();
     $edgeServer->fromObject($dbEdgeServer, $this->getResponseProfile());
     return $edgeServer;
 }