public long fileLength(String name) throws IOException {ensureOpen();FileEntry e = entries.get(IndexFileNames.stripSegmentName(name));if (e == null)throw new FileNotFoundException(name);return e.length;}

public override long FileLength(string name){EnsureOpen();if (this.writer != null){return writer.FileLength(name);}FileEntry e = entries[IndexFileNames.StripSegmentName(name)];if (e == null){throw new FileNotFoundException(name);}return e.Length;}
