/**
  * @see CurlConnection::deleteRequest()
  */
 public function deleteRequest($url)
 {
     try {
         return parent::deleteRequest($this->buildUrl($url));
     } catch (HttpConnectionException $e) {
         $this->parseFedoraExceptions($e);
     }
 }
 /**
  * Unallocate curl context
  */
 protected function unallocateCurlContext()
 {
     if (self::$curlContext) {
         curl_close(self::$curlContext);
         self::$curlContext = NULL;
     }
 }