protected function _isMetadatasFile($fileName)
    {
        $id = $this->_fileNameToId($fileName);
        if (substr($id, 0, 21) == 'internal-metadatas---') {
            return true;
        } else {
            return false;
        }
    }
protected function _isMetadatasFile($fileName)
    {
        $id = $this->_fileNameToId($fileName);
        if (substr($id, 0, 21) == 'internal-metadatas---') {
            return true;
        } else {
            return false;
        }
    }
protected function _isMetadatasFile ( $ fileName ) { $ id = $ this -> _fileNameToId ( $ fileName ) ; if ( substr ( $ id , 0 , 21 ) == 'internal-metadatas---' ) { return true ; } else { return false ; } }
Check if the given filename is a metadatas one

@param  string $fileName File name
@return boolean True if it's a metadatas one
Check if the given filename is a metadatas one