/**
  * @param \AssetsBundle\AssetFile\AssetFile $oAssetFile
  * @return boolean|string
  */
 public function getCachedFilteredContent(\AssetsBundle\AssetFile\AssetFile $oAssetFile)
 {
     if (file_exists($sCachedFilteredContentFilePath = $this->getCachedFilteredContentFilePath($oAssetFile))) {
         $oFilteredAssetFile = new \AssetsBundle\AssetFile\AssetFile(array('assetFilePath' => $sCachedFilteredContentFilePath, 'assetFileType' => $oAssetFile->getAssetFileType()));
         if (($iFilteredAssetFileLastModified = $oFilteredAssetFile->getAssetFileLastModified()) && ($iAssetFileLastModified = $oAssetFile->getAssetFileLastModified()) && $iFilteredAssetFileLastModified >= $iAssetFileLastModified) {
             return $oFilteredAssetFile->getAssetFileContents();
         }
     }
     return false;
 }