perftools / xhgui

     * @return string

     * @throws Exception

     */

    public function callgraphData()

    {

        $request    = $this->app->request();

        $response   = $this->app->response();

        $profile    = $this->profiles->get($request->get('id'));

        $metric     = $request->get('metric') ?: 'wt';

        $threshold  = (float)$request->get('threshold') ?: 0.01;

        $callgraph  = $profile->getCallgraph($metric, $threshold);

        $response['Content-Type'] = 'application/json';

        return $response->body(json_encode($callgraph));

    }

    /**

     * @return string

    /**

     * @return string

     */

    public function callgraphDataDot()

    {

        $request    = $this->app->request();

        $response   = $this->app->response();

        $profile    = $this->profiles->get($request->get('id'));

        $metric     = $request->get('metric') ?: 'wt';

        $threshold  = (float)$request->get('threshold') ?: 0.01;

        $callgraph  = $profile->getCallgraphNodes($metric, $threshold);

        $response['Content-Type'] = 'application/json';

        return $response->body(json_encode($callgraph));

    }

}