public void export(final java.io.File exportLocation) {

    listFileNames().stream().forEach(fileName -> {
      try {
        getFile(fileName).export(exportLocation);
      } catch (FileNotFoundException e) {
        // ignore this, it was concurrently removed
      }
    });
  }
Export all of the files in the filesystem to the provided directory
geode-lucene/src/main/java/org/apache/geode/cache/lucene/internal/filesystem/FileSystem.java