value = list.stream().collect(Collectors.joining("\n"));
                }
            } else if (dateFieldSet.contains(key)) {
                value = FessFunctions.formatDate((Date) value);
            } else if (integerFieldSet.contains(key) || longFieldSet.contains(key) || floatFieldSet.contains(key)
                    || doubleFieldSet.contains(key)) {
                value = value.toString();

	// in-case the caller is a network operation.
	if volume == minioMetaBucket && path == formatConfigFile {
		s.RLock()
		formatData := make([]byte, len(s.formatData))
		copy(formatData, s.formatData)
		s.RUnlock()
		if len(formatData) > 0 {
			return formatData, nil
		}
	}
	volumeDir, err := s.getVolDir(volume)
	if err != nil {
		return nil, err
	}