public function isEnabled()
 {
     $servers = PhabricatorNotificationServerRef::getEnabledAdminServers();
     if (!$servers) {
         return false;
     }
     return PhabricatorApplication::isClassInstalled('PhabricatorNotificationsApplication');
 }
 public static function tryToPostMessage(array $data)
 {
     $servers = PhabricatorNotificationServerRef::getEnabledAdminServers();
     shuffle($servers);
     foreach ($servers as $server) {
         try {
             $server->postMessage($data);
             return;
         } catch (Exception $ex) {
             // Just ignore any issues here.
         }
     }
 }