public function indexAction(Request $request)
 {
     if ($request->query->has('wsdl')) {
         $autodiscover = new \Zend\Soap\AutoDiscover();
         $autodiscover->setClass('\\Heri\\WebServiceBundle\\Tests\\Server\\Sample');
         $autodiscover->setUri('http://my-local/sample/index');
         $autodiscover->generate();
         return new Response($autodiscover->toXml(), 200, array('Content-Type' => 'application/xml'));
     } else {
         $server = new \Zend\Soap\Server('sample.wsdl');
         $server->setClass('\\Heri\\WebServiceBundle\\Tests\\Server\\Sample');
         $server->handle();
         return new Response("", 200, array('Content-Type' => 'application/xml'));
     }
 }