switch(eStatus){
    case OPEN_STATUS:{
      return "open";
    }
    case WAITING_FOR_LOADING_STATUS:{
      return "waiting for loading";
    }
    case FAILED_TO_OPEN_STATUS:{
      return "failed to open";
    }    
    case LOADING_STATUS:{
      return "loading";
    }
    case IMPORT_RUNNING_STATUS:{
      return "import running";
    }
    case REORGANIZE_RUNNING_STATUS:{
      return "reorganize running";
    }
    case AVAILABLE_STATUS:{
      return "available";
    }
    default:{
      return "unknown " + toStr(eStatus) + " status";
    }