docs: private String buildFileName(Identity identity, String prefix) {
          Date now = new Date();
          String time = new SimpleDateFormat(DATE_FORMAT).format(now);
          return MessageFormat.format("{0}-{1}-{2}-{3}-{4}.gzip", prefix, time, String.valueOf(identity.getChannelId()),
                                      String.valueOf(identity.getPipelineId()), String.valueOf(identity.getProcessId()));
      }