乐尚代驾-使用GEO搜索附近合适的司机

//搜索附近满足条件的司机
@Override
public List<NearByDriverVo> searchNearByDriver(SearchNearByDriverForm searchNearByDriverForm) {
    //搜索经纬度位置5公里以内的司机
    //1 操作redis里面geo
    //创建point，经纬度位置
    Point point = new Point(searchNearByDriverForm.getLongitude().doubleValue(),
            searchNearByDriverForm.getLatitude().doubleValue());

    //定义距离，5公里
    Distance distance = new Distance(SystemConstant.NEARBY_DRIVER_RADIUS,
                           RedisGeoCommands.DistanceUnit.KILOMETERS);

    //创建circle对象，point  distance
    Circle circle = new Circle(point,distance);

    //定义GEO参数，设置返回结果包含内容
    RedisGeoCommands.GeoRadiusCommandArgs args =
            RedisGeoCommands.GeoRadiusCommandArgs.newGeoRadiusArgs()
                    .includeDistance()  //包含距离
                    .includeCoordinates() //包含坐标
                    .sortAscending(); //升序

    GeoResults<RedisGeoCommands.GeoLocation<String>> result =
            redisTemplate.opsForGeo().radius(RedisConstant.DRIVER_GEO_LOCATION, circle, args);

    //2 查询redis最终返回list集合
    List<GeoResult<RedisGeoCommands.GeoLocation<String>>> content = result.getContent();

    //3 对查询list集合进行处理
    // 遍历list集合，得到每个司机信息
    // 根据每个司机个性化设置信息判断
    List<NearByDriverVo> list = new ArrayList<>();
    if(!CollectionUtils.isEmpty(content)) {
        Iterator<GeoResult<RedisGeoCommands.GeoLocation<String>>> iterator = content.iterator();
        while(iterator.hasNext()) {
            GeoResult<RedisGeoCommands.GeoLocation<String>> item = iterator.next();

            //获取司机id
            Long driverId = Long.parseLong(item.getContent().getName());

            //远程调用，根据司机id个性化设置信息
            Result<DriverSet> driverSetResult = driverInfoFeignClient.getDriverSet(driverId);
            DriverSet driverSet = driverSetResult.getData();

            //判断订单里程order_distance
            BigDecimal orderDistance = driverSet.getOrderDistance();
            //orderDistance==0，司机没有限制的
            //如果不等于0 ，比如30，接单30公里代驾订单。
            //接单距离 - 当前单子距离  < 0,不复合条件
            // 30          35
            if(orderDistance.doubleValue() != 0
                    && orderDistance.subtract(searchNearByDriverForm.getMileageDistance()).doubleValue()<0) {
                continue;
            }

            //判断接单里程 accept_distance
            //当前接单距离
            BigDecimal currentDistance =
                    new BigDecimal(item.getDistance().getValue()).setScale(2, RoundingMode.HALF_UP);

            BigDecimal acceptDistance = driverSet.getAcceptDistance();
            if(acceptDistance.doubleValue() !=0
            && acceptDistance.subtract(currentDistance).doubleValue()<0) {
                continue;
            }

            //封装复合条件数据
            NearByDriverVo nearByDriverVo = new NearByDriverVo();
            nearByDriverVo.setDriverId(driverId);
            nearByDriverVo.setDistance(currentDistance);
            list.add(nearByDriverVo);

        }

    }
    return list;
}