for obj := range objCh {
		if obj.Err != nil {
			log.Fatalf("Listing error: %v", obj.Err)
		}
		fmt.Printf("Key: %s\nSize: %d\nLast Modified: %s\n===\n", obj.Key, obj.Size, obj.LastModified)
	}

        }
    }

    private <T> List<T> map(List<T> resources, Function<T, T> mapper) {
        List<T> newResources = null;
        if (resources != null) {
            for (int i = 0; i < resources.size(); i++) {
                T resource = resources.get(i);
                T newResource = mapper.apply(resource);
                if (newResource != null) {
                    if (newResources == null) {

        }

        if (_specification != null) {
            builder.setFetchSource(_specification.columnList.toArray(new String[_specification.columnList.size()]), null);
        }

        return builder;
    }

    // ===================================================================================

    try {
      Object unused = digest.clone();
      return true;
    } catch (CloneNotSupportedException e) {
      return false;
    }
  }

  @Override
  public int bits() {
    return bytes * Byte.SIZE;
  }

  @Override
  public String toString() {
    return toString;
  }

  private static MessageDigest getMessageDigest(String algorithmName) {
    try {

				}
			}

			if !isSameType {
				alterColumn = true
			}
		}
	}

	if !isSameType {
		// check size
		if length, ok := columnType.Length(); length != int64(field.Size) {
			if length > 0 && field.Size > 0 {
				alterColumn = true
			} else {
				// has size in data type and not equal
				// Since the following code is frequently called in the for loop, reg optimization is needed here

            if (!docIdList.isEmpty()) {
                final Map<String, String[]> resultDocIdsCache = getResultDocIdsCache(session);
                resultDocIdsCache.put(queryId, docIdList.toArray(new String[docIdList.size()]));
            }
        });
    }

    public String[] getResultDocIds(final String queryId) {
        return LaRequestUtil.getOptionalRequest().map(req -> req.getSession(false)).map(session -> {

type Options struct {
	// Directory defines the directory where log files will be written to.
	// If the directory does not exist, it will be created.
	Directory string

	// MaximumFileSize defines the maximum size of each log file in bytes.
	MaximumFileSize int64

	// FileNameFunc specifies the name a new file will take.
	// FileNameFunc must ensure collisions in filenames do not occur.

    }
  }

  static char[] randomChars(Random rand, int size) {
    Set<Character> chars = new HashSet<>(size);
    for (int i = 0; i < size; i++) {
      char c;
      do {
        c = (char) rand.nextInt(Character.MAX_VALUE - Character.MIN_VALUE + 1);
      } while (chars.contains(c));
      chars.add(c);
    }
    char[] retValue = new char[chars.size()];
    int i = 0;
    for (char c : chars) {

            final TermsAggregationBuilder termsBuilder = AggregationBuilders.terms(fessConfig.getIndexFieldSegment())
                    .field(fessConfig.getIndexFieldSegment()).size(maxSessionIdsInList).order(BucketOrder.key(false));
            queryRequestBuilder.addAggregation(termsBuilder);
            queryRequestBuilder.setPreference(Constants.SEARCH_PREFERENCE_LOCAL);
            return true;

   * {@link SortedMultiset#firstEntry} {@link SortedMultiset#headMultiset}, {@link
   * SortedMultiset#isEmpty}, {@link SortedMultiset#lastEntry}, {@link SortedMultiset#subMultiset},
   * {@link SortedMultiset#tailMultiset}, the {@code size()} and {@code iterator()} methods of
   * {@link SortedMultiset#entrySet}, and {@link SortedMultiset#remove(Object, int)}. In many
   * situations, you may wish to override {@link SortedMultiset#elementSet} to forward to this