/**
  * Caches the response
  * @param \ride\web\WebApplication $web
  * @return null
  */
 public function cacheResponse(WebApplication $web)
 {
     if (!isset($this->cache)) {
         return;
     }
     if (!isset($this->cacheTtl)) {
         $this->cacheTtl = 0;
     }
     $request = $web->getRequest();
     $response = $web->getResponse();
     $cacheKey = 'node.response.' . StringHelper::safeString($request->getUrl());
     if ($this->log) {
         $this->log->logDebug('Caching the request', 'Ttl: ' . $this->cacheTtl . ' - ' . $cacheKey, ApplicationListener::LOG_SOURCE);
     }
     $cachedResponse = $this->cache->create($cacheKey);
     $cachedResponse->setValue($response);
     $cachedResponse->setTtl($this->cacheTtl);
     $this->cache->set($cachedResponse);
 }