private String parseMaxAgeMplus(String value, long lastModified) {
        long currentTimeMillis = System.currentTimeMillis();
        return Long.toString(Long.parseLong(value) + (lastModified - currentTimeMillis) / 1000);
    }
private String parseMaxAgeMplus ( String value , long lastModified ) { long currentTimeMillis = System . currentTimeMillis ( ) ; return Long . toString ( Long . parseLong ( value ) + ( lastModified - currentTimeMillis ) / 1000 ) ; }
Parse value for a max-age (m + N value), according to the requested file's last modified date
@param value
@param lastModified
@return max-age parsed value