protected int getStoredFileSubIndexerId(int fileId) {
    if (mySubIndexerRetriever == null) throw new IllegalStateException("not a composite indexer");
    try {
      return mySubIndexerRetriever.getStoredFileIndexerId(fileId);
    }
    catch (IOException e) {
      LOG.error(e);
      return -4;
    }
  }
protected int getStoredFileSubIndexerId(int fileId)