/**
  * @param \Assetic\Asset\AssetInterface $asset
  */
 public function filterLoad(AssetInterface $asset)
 {
     $root = $asset->getSourceRoot();
     $path = $asset->getSourcePath();
     $filename = realpath($root . '/' . $path);
     if (file_exists($filename)) {
         touch($filename);
     }
     parent::filterLoad($asset);
 }