/**
  * It connects to the url and give response.
  *
  * @param PrestashopRestClientParameters $clientParameters
  *
  * @return \Guzzle\Http\Message\Response
  *
  * @throws \Exception
  */
 protected function connect($clientParameters)
 {
     $parametersHash = $clientParameters->getHash();
     if (!isset($this->resultCache[$parametersHash])) {
         $guzzleParams = ['connect_timeout' => self::CONNECT_TIMEOUT, 'timeout' => self::TIMEOUT, 'auth' => [$clientParameters->getHttpLogin(), $clientParameters->getHttpPassword()]];
         $request = $this->client->get($clientParameters->getPrestashopUrl(), [], $guzzleParams);
         $request->getCurlOptions()->set(CURLOPT_CONNECTTIMEOUT, self::CONNECT_TIMEOUT);
         $request->getCurlOptions()->set(CURLOPT_TIMEOUT, self::TIMEOUT);
         try {
             $response = $this->client->send($request);
             $this->resultCache[$parametersHash] = $response;
         } catch (\Exception $e) {
             $this->resultCache[$parametersHash] = $e;
             throw $e;
         }
     } else {
         $response = $this->resultCache[$parametersHash];
         if ($response instanceof \Exception) {
             throw $response;
         }
     }
     return $response;
 }
 /**
  * {@inheritDoc}
  */
 public function getContent($url)
 {
     $response = $this->client->get($url)->send();
     return (string) $response->getBody();
 }