/** * * returns cpu utilization png image from rrd data file * * request object is like this; * <code> * $request['id'] = $id; //server ID * $request['graph_start'] = $time; * $request['graph_end'] = $time; * </code> * * @param sfWebRequest $request A request object * */ public function executeGraph_cpu_perPNG(sfWebRequest $request) { $etva_server = EtvaServerPeer::retrieveByPK($request->getParameter('id')); $etva_node = $etva_server->getEtvaNode(); $graph_start = $request->getParameter('graph_start'); $graph_end = $request->getParameter('graph_end'); $cpu_per_rra = new ServerCpuUsageRRA($etva_node->getUuid(), $etva_server->getUuid()); $title_i18n = sprintf("%s :: %s", $etva_server->getName(), $this->getContext()->getI18N()->__(ServerCpuUsageRRA::getName())); $this->getResponse()->setContentType('image/png'); $this->getResponse()->setHttpHeader('Content-Type', 'image/png', TRUE); $this->getResponse()->sendHttpHeaders(); $this->getResponse()->setContent(print $cpu_per_rra->getGraphImg($title_i18n, $graph_start, $graph_end)); return sfView::HEADER_ONLY; }