docs: public String generateTaskId() {
          final String uuid = UUID.randomUUID().toString().substring(0, 12);
          int size = this.targetHostMeta == null ? 0 : this.targetHostMeta
                  .getHosts().size();
          return "PT_" + size + "_"
                  + PcDateUtils.getNowDateTimeStrConciseNoZone() + "_" + uuid;
      }