screen-api 实时界面对数据进行保留小数位并且取整

kaiyu

2021-09-14 0aed1c0e6a91207c15fa34f49a7dfa9b6e2b64c5

 screen-api/src/main/java/com/moral/api/service/impl/HistorySecondUavServiceImpl.java

@@ -1,5 +1,6 @@
package com.moral.api.service.impl;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.moral.api.entity.HistorySecondUav;
import com.moral.api.entity.Organization;
@@ -11,9 +12,13 @@
import com.moral.api.service.OrganizationService;
import com.moral.api.service.SpecialDeviceService;
import com.moral.util.DateUtils;
import com.moral.util.GeodesyUtils;
import com.moral.util.MathUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.function.Predicate;

@@ -27,6 +32,11 @@
 */
@Service
public class HistorySecondUavServiceImpl extends ServiceImpl<HistorySecondUavMapper, HistorySecondUav> implements HistorySecondUavService {

    /*
     * 筛选数据举例
     * */
    private Double filterDistance = 2d;

    @Autowired
    HistorySecondUavMapper historySecondUavMapper;
@@ -46,13 +56,14 @@
            childrenId.add(child.getId());
        }
        childrenId.add(organizationId);
        queryWrapper.in("organization_id",childrenId);
        queryWrapper.in("organization_id", childrenId);
        //设置查询时间范围为180天
        Date endDate = new Date();
        Date startDate = DateUtils.addDays(endDate, -180);
        queryWrapper.between("batch",startDate,endDate);
        queryWrapper.between("batch", startDate, endDate);
        //设置查询字段
        queryWrapper.select("DISTINCT batch");
        queryWrapper.orderByDesc("batch");
        //查询结果
        List<HistorySecondUav> historySecondUavs = historySecondUavMapper.selectList(queryWrapper);
        //结果转为Date集合
@@ -77,76 +88,161 @@
            childrenId.add(child.getId());
        }
        childrenId.add(organizationId);
        wrapper.in("organization_id",childrenId);
        wrapper.in("organization_id", childrenId);
        //查询根据batch查，因为可能会有跨天飞行的情况。
        wrapper.between("batch",startDate,endDate);
        wrapper.between("batch", startDate, endDate);
        //设置查询字段
        wrapper.select("mac,time,batch");
        //查询结果
        List<HistorySecondUav> historySecondUavs = historySecondUavMapper.selectList(wrapper);
        //根据batch进行分批
        Map<String,List<HistorySecondUav>> batchMap = new LinkedHashMap<>();//key为batch的string
        Map<String, List<HistorySecondUav>> batchMap = new LinkedHashMap<>();//key为batch的string
        for (HistorySecondUav historySecondUav : historySecondUavs) {
            //获取batch对应的数据集合
            List<HistorySecondUav> list = batchMap.get(historySecondUav.getBatch().toString());
            if(list!=null){
            List<HistorySecondUav> list = batchMap.get(DateUtils.dateToDateString(historySecondUav.getBatch(), "yyyy-MM-dd HH:mm:ss"));
            if (list != null) {
                list.add(historySecondUav);
            }else{
            } else {
                ArrayList<HistorySecondUav> newList = new ArrayList<>();
                newList.add(historySecondUav);
                batchMap.put(historySecondUav.getBatch().toString(),newList);
                batchMap.put(DateUtils.dateToDateString(historySecondUav.getBatch(), "yyyy-MM-dd HH:mm:ss"), newList);
            }
        }
        //去除少于30条数据的集合
        batchMap.values().removeIf(new Predicate<List<HistorySecondUav>>() {
            @Override
            public boolean test(List<HistorySecondUav> historySecondUavs) {
                if(historySecondUavs.size()<=30)
                if (historySecondUavs.size() <= 30)
                    return true;
                return false;
            }
        });
        //根据mac进行分类
        Map<String,List<Map<String,List<HistorySecondUav>>>> macBatchMap = new LinkedHashMap<>();//key为mac
        Map<String, List<Map<String, List<HistorySecondUav>>>> macBatchMap = new LinkedHashMap<>();//key为mac
        //遍历batchMap将mac提取出来，作为macBatchMap的key，batch和数据map的数据集合放入value
        batchMap.forEach((key,value)->{
        batchMap.forEach((key, value) -> {
            String mac = value.get(0).getMac();
            List<Map<String, List<HistorySecondUav>>> maps = macBatchMap.get(mac);
            if(maps!=null){
                Map<String,List<HistorySecondUav>> map = new LinkedHashMap<>();
                map.put(key,value);
            if (maps != null) {
                Map<String, List<HistorySecondUav>> map = new LinkedHashMap<>();
                map.put(key, value);
                maps.add(map);
            }else{
                List<Map<String,List<HistorySecondUav>>> list = new ArrayList<>();
                Map<String,List<HistorySecondUav>> map = new LinkedHashMap<>();
                map.put(key,value);
            } else {
                List<Map<String, List<HistorySecondUav>>> list = new ArrayList<>();
                Map<String, List<HistorySecondUav>> map = new LinkedHashMap<>();
                map.put(key, value);
                list.add(map);
                macBatchMap.put(value.get(0).getMac(),list);
                macBatchMap.put(value.get(0).getMac(), list);
            }
        });
        //封装返回数据
        List<UAVQueryTimeSlotDTO> dtos = new ArrayList<>();
        macBatchMap.forEach((key,value)->{
        macBatchMap.forEach((key, value) -> {
            UAVQueryTimeSlotDTO dto = new UAVQueryTimeSlotDTO();
            List<Map<String,Date>> timeSlots = new ArrayList<>();
            List<Map<String, Object>> timeSlots = new ArrayList<>();
            dto.setMac(key);
            //根据mac查询设备名称
            dto.setName((String) specialDeviceService.getSpecialDeviceMapByMac(key).get("name"));
            //获取时间段
            value.forEach(listValue->{
                listValue.forEach((mKey,mValue)->{
                    Date slotStartDate = mValue.get(0).getTime();
                    Date slotEndDate = mValue.get(mValue.size()-1).getTime();
                    Map<String,Date> dateMap = new HashMap<>();
                    dateMap.put("startTime",slotStartDate);
                    dateMap.put("endTime",slotEndDate);
            dto.setName((String) specialDeviceService.getSpecialDeviceMapByMac(key).getName());
            //获取时间段与batch
            value.forEach(listValue -> {
                listValue.forEach((mKey, mValue) -> {
                    Date slotStartDate = mValue.    get(0).getTime();
                    Date slotEndDate = mValue.get(mValue.size() - 1).getTime();
                    Map<String, Object> dateMap = new HashMap<>();
                    dateMap.put("startTime", slotStartDate);
                    dateMap.put("endTime", slotEndDate);
                    dateMap.put("batch", mKey);
                    timeSlots.add(dateMap);
                });
            });
            dto.setTimeSlot(timeSlots);
            dtos.add(dto);
        });
      return dtos;
        return dtos;
    }

    @Override
    public List<HistorySecondUav> queryDataByBatch(String batch) {
        //batch转换类型
        Date batchDate = DateUtils.getDate(batch, "yyyy-MM-dd HH:mm:ss");
        //查询数据
        QueryWrapper<HistorySecondUav> wrapper = new QueryWrapper<>();
        wrapper.eq("batch", batchDate);
        wrapper.select("value");
        List<HistorySecondUav> datas = historySecondUavMapper.selectList(wrapper);
        //获取无人机飞行高度最低值
        Double lowestHeight = 0d;
        for (HistorySecondUav data : datas) {
            String value = data.getValue();
            Map<String, Object> valueMap = JSON.parseObject(value, Map.class);
            //获取高度
            Double height = Double.valueOf((String) valueMap.get("flyhig"));
            if (height < lowestHeight)
                lowestHeight = height;
        }
        //获取最低点后，无人机所有飞行高度以最低点作为0点，所以无人机所有的高度全部加上最低点的绝对值。
        lowestHeight = Math.abs(lowestHeight);
        for (HistorySecondUav data : datas) {
            String value = data.getValue();
            Map<String, Object> valueMap = JSON.parseObject(value, Map.class);
            //获取高度
            Double height = Double.valueOf((String) valueMap.get("flyhig"));
            //加上最低点绝对值
            height = MathUtils.add(height, lowestHeight);
            //重新封装数据
            valueMap.put("flyhig", height);
            String newValue = JSON.toJSONString(valueMap);
            data.setValue(newValue);
        }
        //筛选无人机数据,保持每个点之间的举例在3米以上
        return filterDatas(datas);
    }

    private List<HistorySecondUav> filterDatas(List<HistorySecondUav> datas) {
        //创建返回结果
        List<HistorySecondUav> result = new ArrayList<>();
        //把第一个数据暂时作为对比数据
        HistorySecondUav tempData = datas.get(0);
        result.add(tempData);
        datas.remove(0);
        for (HistorySecondUav data : datas) {
            Double distance = getDistance(tempData, data);
            if(distance>filterDistance){
                result.add(data);
                tempData = data;
            }
        }
        return result;
    }

    /**
    * @Description: 获取两个数据之间的距离
            * @Param: [uav1, uav2]
            * @return: java.lang.Double
            * @Author: 陈凯裕
            * @Date: 2021/9/13
            */
    private Double getDistance(HistorySecondUav uav1 , HistorySecondUav uav2){
        String value1 = uav1.getValue();
        String value2 = uav2.getValue();
        Map<String,Object> value1Map = JSON.parseObject(value1,Map.class);
        Map<String,Object> value2Map = JSON.parseObject(value2,Map.class);
        //获取数据1的经纬度和高度
        Double longtitude1 = Double.valueOf((String)value1Map.get("flylon"));
        Double latitude1 = Double.valueOf((String)value1Map.get("flylat"));
        BigDecimal c1 = (BigDecimal)value1Map.get("flyhig");
        double height1 = c1.doubleValue();
        //获取数据2的经纬度和高度
        Double longtitude2 = Double.valueOf((String)value2Map.get("flylon"));
        Double latitude2 = Double.valueOf((String)value2Map.get("flylat"));
        BigDecimal c2 = (BigDecimal)value2Map.get("flyhig");
        double height2 = c2.doubleValue();
        //计算经纬度之间的平面距离
        Double planDistance = GeodesyUtils.getDistance(latitude1, longtitude1, latitude2, longtitude2);
        //根据直角三角形特性用勾股定理计算空间距离
        Double heightDsitance = Math.abs(MathUtils.sub(height2,height1));
        Double Distance = Math.sqrt(MathUtils.mul(planDistance,planDistance)+MathUtils.mul(heightDsitance,heightDsitance));
        return Distance;
    }

}