RiderLocationServiceImpl.java
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package com.diligrp.rider.service.impl;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.diligrp.rider.dto.DeliveryPricingConfigDTO;
import com.diligrp.rider.dto.LocationDTO;
import com.diligrp.rider.entity.Orders;
import com.diligrp.rider.entity.Rider;
import com.diligrp.rider.entity.RiderLocation;
import com.diligrp.rider.mapper.OrdersMapper;
import com.diligrp.rider.mapper.RiderLocationMapper;
import com.diligrp.rider.mapper.RiderMapper;
import com.diligrp.rider.service.CityService;
import com.diligrp.rider.service.DispatchRuleService;
import com.diligrp.rider.service.RiderLocationService;
import com.diligrp.rider.util.GeoUtil;
import com.diligrp.rider.vo.AdminRiderDashboardVO;
import com.diligrp.rider.vo.AdminRiderLocationVO;
import com.diligrp.rider.vo.DispatchRuleTemplateVO;
import com.diligrp.rider.vo.NearbyRiderVO;
import com.diligrp.rider.websocket.LocationPushService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
@Service
@RequiredArgsConstructor
@Slf4j
public class RiderLocationServiceImpl implements RiderLocationService {
private static final long ACTIVE_WINDOW_SECONDS = 300;
private final RiderLocationMapper locationMapper;
private final RiderMapper riderMapper;
private final OrdersMapper ordersMapper;
private final CityService cityService;
private final DispatchRuleService dispatchRuleService;
private final LocationPushService locationPushService;
/**
* 按骑手维度更新最新位置。
*/
@Override
public void updateLocation(Long riderId, LocationDTO dto) {
long now = System.currentTimeMillis() / 1000;
log.debug("更新骑手位置，参数 riderId={} lng={} lat={} updateTime={}",
riderId, dto.getLng(), dto.getLat(), now);
Rider rider = riderMapper.selectById(riderId);
locationMapper.upsertLocation(
riderId,
dto.getLng().stripTrailingZeros().toPlainString(),
dto.getLat().stripTrailingZeros().toPlainString(),
now);
if (rider != null && rider.getCityId() != null) {
AdminRiderLocationVO location = new AdminRiderLocationVO();
location.setRiderId(riderId);
location.setRiderName(rider.getUserNickname());
location.setCityId(rider.getCityId());
location.setLng(dto.getLng());
location.setLat(dto.getLat());
location.setUpdateTime(now);
locationPushService.pushRiderLocation(location);
}
}
/**
* 查询当前骑手最近一次上报的位置。
*/
@Override
public LocationDTO getLocation(Long riderId) {
log.debug("查询骑手当前位置，参数 riderId={}", riderId);
RiderLocation loc = locationMapper.selectOne(new LambdaQueryWrapper<RiderLocation>()
.eq(RiderLocation::getUid, riderId));
if (loc == null) {
log.debug("未查询到骑手位置，riderId={}", riderId);
return null;
}
LocationDTO dto = new LocationDTO();
dto.setLng(new BigDecimal(loc.getLng()));
dto.setLat(new BigDecimal(loc.getLat()));
return dto;
}
/**
* 查询指定商铺最近活跃的骑手位置列表。
*/
@Override
public List<AdminRiderLocationVO> listActiveByCity(Long cityId) {
List<AdminRiderLocationVO> result = new ArrayList<>();
if (cityId == null || cityId < 1) {
return result;
}
List<Rider> riders = riderMapper.selectList(new LambdaQueryWrapper<Rider>()
.eq(Rider::getCityId, cityId)
.eq(Rider::getIsRest, 0)
.eq(Rider::getUserStatus, 1));
if (riders.isEmpty()) {
return result;
}
List<Long> riderIds = riders.stream().map(Rider::getId).toList();
long minUpdateTime = System.currentTimeMillis() / 1000 - ACTIVE_WINDOW_SECONDS;
List<RiderLocation> locations = locationMapper.selectList(
new LambdaQueryWrapper<RiderLocation>()
.in(RiderLocation::getUid, riderIds)
.ge(RiderLocation::getUpdateTime, minUpdateTime));
if (locations.isEmpty()) {
return result;
}
java.util.Map<Long, Rider> riderMap = riders.stream()
.collect(java.util.stream.Collectors.toMap(Rider::getId, rider -> rider));
for (RiderLocation location : locations) {
Rider rider = riderMap.get(location.getUid());
if (rider == null) {
continue;
}
try {
AdminRiderLocationVO vo = new AdminRiderLocationVO();
vo.setRiderId(rider.getId());
vo.setRiderName(rider.getUserNickname());
vo.setCityId(rider.getCityId());
vo.setLng(new BigDecimal(location.getLng()));
vo.setLat(new BigDecimal(location.getLat()));
vo.setUpdateTime(location.getUpdateTime());
result.add(vo);
} catch (Exception ignored) {
}
}
log.debug("查询商铺活跃骑手位置完成，cityId={} count={}", cityId, result.size());
return result;
}
/**
* 查询指定商铺骑手看板数据。
*/
@Override
public List<AdminRiderDashboardVO> listDashboardByCity(Long cityId) {
List<AdminRiderDashboardVO> result = new ArrayList<>();
log.debug("开始查询商铺骑手看板，参数 cityId={}", cityId);
if (cityId == null || cityId < 1) {
return result;
}
DispatchRuleTemplateVO rule = dispatchRuleService.getActiveRule(cityId);
Integer maxHoldOrderCount = normalizeMaxHoldOrderCount(rule);
List<Rider> riders = riderMapper.selectList(new LambdaQueryWrapper<Rider>()
.eq(Rider::getCityId, cityId)
.orderByDesc(Rider::getId));
if (riders.isEmpty()) {
log.debug("商铺下没有骑手，cityId={}", cityId);
return result;
}
List<Long> riderIds = riders.stream().map(Rider::getId).toList();
List<RiderLocation> locations = locationMapper.selectList(
new LambdaQueryWrapper<RiderLocation>().in(RiderLocation::getUid, riderIds));
List<Orders> holdingOrders = ordersMapper.selectList(new LambdaQueryWrapper<Orders>()
.eq(Orders::getCityId, cityId)
.in(Orders::getStatus, List.of(3, 4))
.in(Orders::getRiderId, riderIds)
.eq(Orders::getIsDel, 0));
log.debug("商铺骑手看板基础数据查询完成，cityId={} riderCount={} locationCount={} holdingOrderCount={} maxHoldOrderCount={}",
cityId, riders.size(), locations.size(), holdingOrders.size(), maxHoldOrderCount);
java.util.Map<Long, RiderLocation> locationMap = new java.util.HashMap<>();
for (RiderLocation location : locations) {
RiderLocation current = locationMap.get(location.getUid());
if (current == null || (current.getUpdateTime() != null
&& location.getUpdateTime() != null
&& location.getUpdateTime() > current.getUpdateTime())) {
locationMap.put(location.getUid(), location);
}
}
java.util.Map<Long, Integer> holdCountMap = new java.util.HashMap<>();
for (Orders order : holdingOrders) {
holdCountMap.merge(order.getRiderId(), 1, Integer::sum);
}
for (Rider rider : riders) {
AdminRiderDashboardVO vo = new AdminRiderDashboardVO();
vo.setRiderId(rider.getId());
vo.setRiderName(rider.getUserNickname());
vo.setMobile(rider.getMobile());
vo.setStatus(buildRiderStatus(rider, locationMap.get(rider.getId())));
int holdOrderCount = holdCountMap.getOrDefault(rider.getId(), 0);
vo.setHoldOrderCount(holdOrderCount);
vo.setMaxHoldOrderCount(maxHoldOrderCount);
vo.setLoadRate(calcLoadRate(holdOrderCount, maxHoldOrderCount));
RiderLocation location = locationMap.get(rider.getId());
if (location != null) {
vo.setLastLocationTime(location.getUpdateTime());
try {
vo.setLng(new BigDecimal(location.getLng()));
vo.setLat(new BigDecimal(location.getLat()));
} catch (Exception ignored) {
}
}
result.add(vo);
}
log.debug("查询骑手看板完成，cityId={} count={}", cityId, result.size());
return result;
}
/**
* 查询商铺范围内最近活跃的附近骑手。
*/
@Override
public List<NearbyRiderVO> getNearby(Long cityId, BigDecimal lng, BigDecimal lat) {
List<NearbyRiderVO> result = new ArrayList<>();
log.debug("开始查询附近骑手，参数 cityId={} lng={} lat={}", cityId, lng, lat);
if (cityId == null || cityId < 1 || lng == null || lat == null) {
return result;
}
DeliveryPricingConfigDTO config = cityService.getConfig(cityId);
if (config == null) {
return result;
}
BigDecimal limitKm = config.getRiderDistance();
if (limitKm == null || limitKm.compareTo(BigDecimal.ZERO) <= 0) {
limitKm = BigDecimal.valueOf(3);
}
List<Rider> riders = riderMapper.selectList(new LambdaQueryWrapper<Rider>()
.eq(Rider::getCityId, cityId)
.eq(Rider::getIsRest, 0)
.eq(Rider::getUserStatus, 1));
if (riders.isEmpty()) {
log.debug("当前商铺没有在线骑手，cityId={}", cityId);
return result;
}
List<Long> riderIds = riders.stream().map(Rider::getId).toList();
long minUpdateTime = System.currentTimeMillis() / 1000 - ACTIVE_WINDOW_SECONDS;
List<RiderLocation> locations = locationMapper.selectList(
new LambdaQueryWrapper<RiderLocation>()
.in(RiderLocation::getUid, riderIds)
.ge(RiderLocation::getUpdateTime, minUpdateTime));
double queryLat = lat.doubleValue();
double queryLng = lng.doubleValue();
double limitD = limitKm.doubleValue();
for (RiderLocation loc : locations) {
try {
double dist = GeoUtil.calcDistanceKm(
queryLat, queryLng,
Double.parseDouble(loc.getLat()),
Double.parseDouble(loc.getLng()));
if (dist <= limitD) {
NearbyRiderVO vo = new NearbyRiderVO();
vo.setLng(loc.getLng());
vo.setLat(loc.getLat());
vo.setDistance(dist);
result.add(vo);
}
} catch (Exception ignored) {
}
}
log.debug("附近骑手查询完成，cityId={} 在线骑手数={} 位置记录数={} 命中数={}",
cityId, riders.size(), locations.size(), result.size());
return result;
}
private String buildRiderStatus(Rider rider, RiderLocation location) {
if (rider.getUserStatus() == null || rider.getUserStatus() != 1) {
return "审核中";
}
if (rider.getStatus() == null || rider.getStatus() != 1) {
return "已禁用";
}
if (rider.getIsRest() != null && rider.getIsRest() == 1) {
return "休息中";
}
long now = System.currentTimeMillis() / 1000;
if (location == null || location.getUpdateTime() == null
|| now - location.getUpdateTime() > ACTIVE_WINDOW_SECONDS) {
return "离线";
}
return "在线";
}
private Integer normalizeMaxHoldOrderCount(DispatchRuleTemplateVO rule) {
if (rule == null || rule.getGrabMaxPerRider() == null || rule.getGrabMaxPerRider() <= 0) {
return null;
}
return rule.getGrabMaxPerRider();
}
private Integer calcLoadRate(int holdOrderCount, Integer maxHoldOrderCount) {
if (maxHoldOrderCount == null || maxHoldOrderCount <= 0) {
return null;
}
int rate = holdOrderCount * 100 / maxHoldOrderCount;
return Math.min(rate, 100);
}
}