Method getLogList

solr/core/src/java/org/apache/solr/update/UpdateLog.java:776–787

(Path directory)

  private boolean updateFromOldTlogs(UpdateCommand cmd) {
    return (cmd.getFlags() & UpdateCommand.REPLAY) != 0 && state == State.REPLAYING;
  }

  public String[] getLogList(Path directory) {
    final String prefix = TLOG_NAME + '.';
    try (Stream<Path> files = Files.list(directory)) {
      return files
          .map((file) -> file.getFileName().toString())
          .filter((name) -> name.startsWith(prefix))
          .sorted()
          .toArray(String[]::new);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }