wft-utils/util/cronUtil.js

The commonly used tool functions in daily development

export function translateCRONToChinese(cronValue) {
  if(!cronValue) return ''
  var temCrons = cronValue.split(" ");
  var sBuffer = "";
  if (temCrons.length == 7) {
    //解析年
    var years = temCrons[6];
    sBuffer += analysisYears(years);
  }
  //解析月
  var month = temCrons[4];
  sBuffer += analysisMonth(month);
  //解析周和日
  var week = temCrons[5];
  var day = temCrons[3];
  if ((week.indexOf("?") != -1 && day.indexOf("*") != -1) ||
    (week.indexOf("*") != -1 && day.indexOf("?") != -1) ||
    (week.indexOf("*") != -1 && day.indexOf("*") != -1) ||
    (week.indexOf("?") != -1 && day.indexOf("?") != -1)) {
    sBuffer += "每天";

  } else {
    if (week.indexOf("?") != -1) {
      //周位是"?",说明要解析日位
      //解析日
      sBuffer += analysisDay(day);
    } else if (day.indexOf("?") != -1) {
      week = translateWeek(week);
      //日位是"?",说明要解析周位
      //解析周
      sBuffer += analysisWeek(week);
    }
  }
  //解析时
  var hours = temCrons[2];
  sBuffer += analysiHours(hours);
  //解析分
  var minutes = temCrons[1];
  sBuffer += analysiMinutes(minutes);
  //解析秒
  var seconds = temCrons[0];
  sBuffer += analysiSeconds(seconds);

  if (sBuffer.length > 0) {
    sBuffer += " 执行";
  } else {
    sBuffer += "表达式转换异常";
  }
  return sBuffer;
}

function analysisYears(years) {
  var sBuffer = "";
  if (years.indexOf("*") != -1) {
    sBuffer += "每年";
  } else if (years.indexOf("-") != -1) {
    sBuffer += "从" + years.split("-")[0] + "年到" + years.split("-")[1] + "年";
  } else if (years.indexOf("/") != -1) {
    sBuffer += "从" + years.split("/")[0] + "年开始每隔" + years.split("/")[1] + "年";
  } else {
    sBuffer += "在" + years + "年";
  }
  return sBuffer;
}

function analysisMonth(month) {
  var sBuffer = "";
  if (month.indexOf("*") != -1) {
    sBuffer += "每月";
  } else if (month.indexOf("-") != -1) {
    sBuffer += "从" + month.split("-")[0] + "月到" + month.split("-")[1] + "月";
  } else if (month.indexOf("/") != -1) {
    sBuffer += "从" + month.split("/")[0] + "月开始每隔" + month.split("/")[1] + "个月";
  } else {
    sBuffer += "在" + month + "月";
  }
  return sBuffer;
}

function analysisDay(day) {
  var sBuffer = "";
  if (day.indexOf("-") != -1 && day.indexOf("L") == -1) {
    sBuffer += "从" + day.split("-")[0] + "日至" + day.split("-")[1] + "日";
  } else if (day.indexOf("/") != -1) {
    sBuffer += "从" + day.split("/")[0] + "日开始每隔" + day.split("/")[1] + "天";
  } else if (day.indexOf("L") != -1) {
    if (day.indexOf("W") != -1) {
      sBuffer += "最后一个工作日";
    } else if (day.indexOf("-") != -1) {
      sBuffer += "底前" + day.split("-")[1] + "天";
    } else if (day.indexOf("-") == -1 && day.length > 2) {
      sBuffer += "最后一个" + translateWeekFromNumberToChinese(day.split("L")[0]);
    } else {
      sBuffer += "最后一天";
    }
  } else if (day.indexOf("W") != -1) {
    sBuffer += "最近的工作日(周一到周五)"
  } else {
    sBuffer += "在" + day + "日";
  }
  return sBuffer;
}

function analysisWeek(week) {
  var sBuffer = "";
  if (week.indexOf("-") != -1) {
    sBuffer += "从" + week.split("-")[0] + "到" + week.split("-")[1]
  } else if (week.indexOf("/") != -1) {
    sBuffer += "从每隔" + week.split("/")[1] + "周的" + week.split("/")[0];
  } else if (week.indexOf("#") != -1) {
    sBuffer += "在第" + week.split("#")[1] + "个" + translateWeekFromNumberToChinese(week.split("#")[0]);
  } else {
    sBuffer += "在" + week;
  }
  return sBuffer;
}

function analysiHours(hours) {
  var sBuffer = "";
  if (hours.indexOf("*") != -1) {
    sBuffer += "每小时";
  } else if (hours.indexOf("-") != -1) {
    sBuffer += "从" + hours.split("-")[0] + "点到" + hours.split("-")[1] + "点";
  } else if (hours.indexOf("/") != -1) {
    sBuffer += "从" + hours.split("/")[0] + "点开始每隔" + hours.split("/")[1] + "小时";
  } else {
    sBuffer += "在" + hours + "点";
  }
  return sBuffer;
}

function analysiMinutes(minutes) {
  var sBuffer = "";
  if (minutes.indexOf("*") != -1) {
    sBuffer += "每分钟";
  } else if (minutes.indexOf("-") != -1) {
    sBuffer += "从第" + minutes.split("-")[0] + "分到" + minutes.split("-")[1] + "分";
  } else if (minutes.indexOf("/") != -1) {
    sBuffer += "从第" + minutes.split("/")[0] + "分开始每隔" + minutes.split("/")[1] + "分钟";
  } else {
    sBuffer += "在第" + minutes + "分";
  }
  return sBuffer;
}

function analysiSeconds(seconds) {
  var sBuffer = "";
  if (seconds.indexOf("*") != -1) {
    sBuffer += "每秒";
  } else if (seconds.indexOf("-") != -1) {
    sBuffer += "从第" + seconds.split("-")[0] + "秒到" + seconds.split("-")[1] + "秒";
  } else if (seconds.indexOf("/") != -1) {
    sBuffer += "从第" + seconds.split("/")[0] + "秒开始每隔" + seconds.split("/")[1] + "秒";
  } else {
    sBuffer += "在第" + seconds + "秒";
  }
  return sBuffer;
}

/** 
* 将周位的表达式转成中文
* @param {*} week 
*/
function translateWeek(week) {
  // SUN,MON,TUE,WED,THU,FRI,SAT
  //  7  1     2  3   4    5  6  
  var regex = new RegExp(".*[a-zA-z].*");
  var isString = regex.test(week);
  var weekChinese = "";
  if (isString) {
    if (week.indexOf(",") != -1) {
      var tempWeek = week.split(",");
      for (var i = 0; i < tempWeek.length; i++) {
        if (i == (tempWeek.length - 1)) {
          weekChinese += translateWeekFromNumberToChinese(tempWeek[i]);
        } else {
          weekChinese += translateWeekFromNumberToChinese(tempWeek[i]) + ",";
        }
      }
    }
  } else {
    if (week.indexOf("/") != -1) {
      weekChinese += translateWeekFromNumberToChinese(week.split("/")[0])
        + "/" + week.split("/")[1];
    } else if ((week.indexOf("-") != -1)) {
      weekChinese += translateWeekFromNumberToChinese(week.split("-")[0])
        + "-" + translateWeekFromNumberToChinese(week.split("-")[1]);
    }
  }
  if (weekChinese) {
    return weekChinese;
  } else {
    return week;
  }
}



/**
* 将数字转化为中文星期几
* @param {*} val :1,2,3...
*/
function translateWeekFromNumberToChinese(val) {
  switch (val) {
    case "1":
      val = "星期日";
      break;
    case "2":
      val = "星期一";
      break;
    case "3":
      val = "星期二";
      break;
    case "4":
      val = "星期三";
      break;
    case "5":
      val = "星期四";
      break;
    case "6":
      val = "星期五";
      break;
    case "7":
      val = "星期六";
      break;
    case "SUN":
      val = "星期日";
      break;
    case "MON":
      val = "星期一";
      break;
    case "TUE":
      val = "星期二";
      break;
    case "WED":
      val = "星期三";
      break;
    case "THU":
      val = "星期四";
      break;
    case "FRI":
      val = "星期五";
      break;
    case "SAT":
      val = "星期六";
      break;
    default:
      break;
  }
  return val;
}