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lxw

2022-09-20 c36210f961aa55a0e8558e16f96c07e2fbe5d9aa

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package com.whyc.service;
 
import com.whyc.dto.Response;
import com.whyc.mapper.BattGroupDataMapper;
import com.whyc.pojo.BattgroupData;
import com.whyc.pojo.FileInfo;
import com.whyc.util.MathUtil;
import org.springframework.stereotype.Service;
 
import javax.annotation.Resource;
import java.math.BigDecimal;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
 
@Service
public class BattGroupDataService {
 
    @Resource
    private BattGroupDataMapper mapper;
 
    public List<BattgroupData> getListWithTestTime(int battGroupId) {
        return mapper.getListWithTestTime(battGroupId);
    }
 
    public Response getComparedList(int baseBattGroupId, int battGroupId) {
        List<BattgroupData> baseDataList = getListWithTestTime(baseBattGroupId);
        List<BattgroupData> dataList = getListWithTestTime(battGroupId);
 
        //内阻变化率,均一性;电压变化率,均一性
        Map<String,List<String>> map = new HashMap<>();
        List<String> resChangeRate = new LinkedList<>();
        List<String> volChangeRate = new LinkedList<>();
        List<String> resBalanceRate = new LinkedList<>();
        List<String> volBalanceRate = new LinkedList<>();
 
        float sdBaseBr = MathUtil.getStandardDeviation(baseDataList.stream().map(BattgroupData::getBr).collect(Collectors.toList()));
        float sdBaseBv = MathUtil.getStandardDeviation(baseDataList.stream().map(BattgroupData::getBv).collect(Collectors.toList()));
        float sdBr = MathUtil.getStandardDeviation(dataList.stream().map(BattgroupData::getBr).collect(Collectors.toList()));
        float sdBv = MathUtil.getStandardDeviation(dataList.stream().map(BattgroupData::getBv).collect(Collectors.toList()));
 
        resBalanceRate.add(sdBaseBr*100+"%");
        resBalanceRate.add(sdBr*100+"%");
 
        volBalanceRate.add(sdBaseBv*100+"%");
        volBalanceRate.add(sdBv*100+"%");
 
        for (int i = 0; i < dataList.size(); i++) {
            BattgroupData data = dataList.get(i);
            //这么做是在 电池单体数据按存储顺序且不出现断层
            BattgroupData baseData = null;
            if(i< baseDataList.size()) {
                baseData = baseDataList.get(i);
            }
            if(baseData!=null){
                //进行内阻和电压变化率计算
                Float br = data.getBr();
                Float baseBr = baseData.getBr();
                if(baseBr == 0.0f){
                    if(br == 0.0f){
                        resChangeRate.add("0.0%");
                    }else{
                        resChangeRate.add("-");
                    }
                }else {
                    float brFloat = BigDecimal.valueOf(br).subtract(BigDecimal.valueOf(baseBr)).divide(BigDecimal.valueOf(baseBr), 4, BigDecimal.ROUND_HALF_UP).floatValue();
                    resChangeRate.add(brFloat * 100 + "%");
                }
 
                Float bv = data.getBv();
                Float baseBv = baseData.getBv();
                if(baseBv == 0.0f){
                    if(bv == 0.0f){
                        volChangeRate.add("0.0%");
                    }else{
                        volChangeRate.add("-");
                    }
                }else {
                    float bvFloat = BigDecimal.valueOf(bv).subtract(BigDecimal.valueOf(baseBv)).divide(BigDecimal.valueOf(baseBv), 4, BigDecimal.ROUND_HALF_UP).floatValue();
                    volChangeRate.add(bvFloat * 100 + "%");
                }
            }
        }
        //将均一性值,也进行变化率计算
        float brFloat = BigDecimal.valueOf(sdBr).subtract(BigDecimal.valueOf(sdBaseBr)).divide(BigDecimal.valueOf(sdBaseBr),4, BigDecimal.ROUND_HALF_UP).floatValue();
        resChangeRate.add(brFloat*100+"%");
 
        float bvFloat = BigDecimal.valueOf(sdBv).subtract(BigDecimal.valueOf(sdBaseBv)).divide(BigDecimal.valueOf(sdBaseBv),4, BigDecimal.ROUND_HALF_UP).floatValue();
        volChangeRate.add(bvFloat*100+"%");
 
        map.put("resChangeRate",resChangeRate);
        map.put("volChangeRate",volChangeRate);
        map.put("resBalanceRate",resBalanceRate);
        map.put("volBalanceRate",volBalanceRate);
        return new Response().setIII(1,baseDataList,dataList,map,null);
    }
 
    public static void main(String[] args) {
        Float bv = 0.353f;
        Float baseBv = 0.354f;
        float bvFloat = BigDecimal.valueOf(bv).subtract(BigDecimal.valueOf(baseBv)).divide(BigDecimal.valueOf(baseBv),4,BigDecimal.ROUND_HALF_UP).floatValue();
        System.out.println((bvFloat * 100 + "%"));
    }
}