import dayjs from 'dayjs';
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// import exceptionApi from '../../api/exceptionApi';
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export default {
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/**
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* 计算日期相差几天
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* @param:
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* @createTime:开始时间,结束时间
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* @returns:
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*/
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getDaysDifference(startDate, endDate) {
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return dayjs(endDate).diff(startDate, 'day') + 1;
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},
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/**
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* 从分析数据数组中计算最小和大值 ,平均值, 在线率,有效率,超标率(后三个值为0~100取值)
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* @param:分析表中的数据
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* @returns:
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*/
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calBillData(arr, beginTime, endTime) {
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let min = 65536;
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let max = -1;
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let avg = 0;
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let online = 0;
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let valid = 0;
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let exceeding = 0;
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let sumAvg = 0;
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let sumOnline = 0;
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let sumValid = 0;
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let sumExceeding = 0;
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// 计算选择的时间的相差的天数
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let begin = dayjs(beginTime).format('YYYY-MM-DD');
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let end = dayjs(endTime).format('YYYY-MM-DD');
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let dayDiff = this.getDaysDifference(begin, end);
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let obj = {};
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// 计算最小和大值
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arr.forEach((item) => {
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if (item.min < min) {
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min = item.min;
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}
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if (item.max > max) {
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max = item.max;
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}
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// 计算平均值,在线率,有效率,超标率
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sumAvg = sumAvg + item.dayAvg;
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sumOnline = sumOnline + Number(item.dayOnline.slice(0, -1));
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sumValid = sumValid + Number(item.dayValid.slice(0, -1));
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sumExceeding = sumExceeding + Number(item.dayExceeding.slice(0, -1));
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});
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// 计算均值
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avg = sumAvg / dayDiff;
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online = sumOnline / dayDiff;
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valid = sumValid / dayDiff;
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exceeding = sumExceeding / dayDiff;
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obj['min'] = min.toFixed(3);
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obj['max'] = max.toFixed(3);
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obj['avg'] = avg.toFixed(2);
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obj['online'] = online.toFixed(2);
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obj['valid'] = valid.toFixed(2);
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obj['exceeding'] = exceeding.toFixed(2);
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return obj;
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},
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/**
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* 计算异常类型聚集度:该时段出现的异常类型数量除8
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* 异常复现率: 量级突变,超标临近和超标次数临界在该时段出现的累计复现此次除3(比如量级突变出现3次,算作复现2次)
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* @param: 异常数据数组
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* @returns:
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*/
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calRecur(exceptionArr) {
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if(exceptionArr.length == 0){
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let obj = {};
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obj['exceptionRecurrence'] = 0;
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obj['exceptionTypeAggregation'] = 0;
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return obj;
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}
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// 典型异常复现率
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let exceptionTyprRecurRate = 0;
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// 量级突变
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let mutationCount = 0;
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// 超标临近
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let exceedingNearCount = 0;
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// 超标次数临界
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let exceedingCriticalDegree = 0;
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// 保存出现的不同异常类型
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let exception = [];
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// 异常类型聚集度
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let exceptionTypeAggregation = 0;
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exceptionArr.forEach((item) => {
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// 异常复现率
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if (item.exceptionType == 4) {
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mutationCount++;
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} else if (item.exceptionType == 5) {
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exceedingNearCount++;
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} else if (item.exceptionType == 6) {
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exceedingCriticalDegree++;
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}
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// 异常类型聚集度
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if (exception.length == 0) {
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exception.push(item.exceptionType);
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}
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// 保存新的异常类型
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else if (exception.indexOf(item.exceptionType) == -1) {
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exception.push(item.exceptionType);
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}
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});
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let sum = 0;
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// 次数减1,该异常出现2次,算复现1次。出现3次,算复现2次...
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if (mutationCount > 1) {
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sum = sum + mutationCount - 1;
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}
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if (exceedingNearCount > 1) {
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sum = sum + exceedingNearCount - 1;
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}
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if (exceedingCriticalDegree > 1) {
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sum = sum + exceedingCriticalDegree - 1;
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}
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switch (true) {
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case (sum == 0 || sum == 1) :
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exceptionTyprRecurRate = (sum / 3).toFixed(2);
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break;
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case (sum == 2|| sum >=3) :
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exceptionTyprRecurRate = 1;
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break;
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default:
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return 'error';
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}
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exceptionTypeAggregation = (exception.length / 8).toFixed(2);
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let obj = {};
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obj['exceptionRecurrence'] = exceptionTyprRecurRate;
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obj['exceptionTypeAggregation'] = exceptionTypeAggregation;
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return obj;
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},
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// 参数:对象数组(该对象中的属性不能是引用类型,否则拷贝的值还是会相互影响)
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// 功能:拷贝该对象数组。
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shallowCopyList(val) {
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if(val == 'arr'){
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let tempList = [];
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return tempList;
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}else if(val == 'obj'){
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let tempList = {};
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return tempList;
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}
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},
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getRate(obj){
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let a = {}
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a.online = obj['dayOnline']
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a.valid = obj['dayValid']
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a.exceeding = obj['dayExceeding']
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return a
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},
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/**
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* 找到对象数组中属性mnCode为value的对象 添加进数组中
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* @param: 对象数组 ,mnCode等于value
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* @returns:
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*/
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findValue(exceptionData,value){
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if(exceptionData.length==0){
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return []
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}
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let temp = []
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exceptionData.forEach((res)=>{
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if(res.mnCode == value){
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temp.push(res)
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}
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})
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return temp
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},
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/**
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* 计算风险值
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* @param: 数组。依次是在线率,有效率,超标率,异常类型聚集度,异常复现率
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* @returns:
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*/
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calRiskValue(arr){
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// 用100减 是因为该属性需要计算的是风险值,应当是离线率,无效率
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// 乘以0.01是因为去除百分号后需要再缩小100倍
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let weight = (
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(100 - parseFloat(arr[0].slice(0, -1)))*0.01 * 0.1 +
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(100 - parseFloat(arr[1].slice(0, -1)))*0.01 * 0.2 +
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parseFloat(arr[2].slice(0, -1))*0.01 * 0.2 +
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arr[3] * 0.2 +
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arr[4] * 0.3
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).toFixed(2)
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return weight
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},
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/**
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* 对分析值和异常值计算风险值
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* @param: 分析数据,异常数据,开始时间,结束时间
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* @returns:表格数据
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*/
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merge(anaData,exceptionData,beginTime,endTime){
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if (anaData.length == 0){
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return []
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}
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const table = []
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let i = 0
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anaData.forEach((res) =>{
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let siteName = res.name
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// 从分析数据中得到设备编号
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let mnCode = res.mnCode
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// 找到异常数据中mnCode等于value的对象
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let d = this.findValue(exceptionData,mnCode)
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// let temp = [...res,...d]
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// 计算在线,有效率,超标率
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let r1 = this.getRate(res, beginTime, endTime)
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// 计算复现率
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let r2 = this.calRecur(d)
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i = i + 1
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// 数组的拷贝 防止地址引用
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let temp = this.shallowCopyList('arr')
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temp.push(r1['online'])
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temp.push(r1['valid'])
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temp.push(r1['exceeding'])
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temp.push(r2['exceptionRecurrence'])
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temp.push(r2['exceptionTypeAggregation'])
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// 计算风险值
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let weight = this.calRiskValue(temp)
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// 对象的拷贝 防止地址引用
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let obj = this.shallowCopyList('obj')
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// 构成表格的一行
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obj.region = '金山区'
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obj.monitorType = '扬尘'
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obj.siteName = res.name
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obj.beginTime = beginTime
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obj.endTime = endTime
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obj.riskValue = weight
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if (weight >= 0.6) {
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obj.riskGrage = '高风险'
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obj.riskAdvice = '建议对该站点进行线下执法检查,专项数据对比'
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} else if (weight < 0.6 && weight >= 0.2) {
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obj.riskGrage = '中风险'
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obj.riskAdvice = '建议开展常态追踪分析'
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} else {
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obj.riskGrage = '低风险'
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obj.riskAdvice = '建议引导企业长态保持'
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}
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table.push(obj)
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})
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return table
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}
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}
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