bms-java/src/main/java/com/zy/bms/service/LatestLocationService.java

package com.zy.bms.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zy.bms.common.vo.DeviceWithLocationVo;
import com.zy.bms.mapper.LatestLocationMapper;
import com.zy.bms.model.DeviceLocation;
import com.zy.bms.model.LatestLocation;
import com.zy.bms.utils.BeanUtil;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * 设备位置信息相关
 *
 * @author chenyi
 * Create on 2020/4/10
 */
@Service
public class LatestLocationService extends ServiceImpl<LatestLocationMapper, LatestLocation> {

    /**
     * 存储最新的位置信息
     */
    public void saveLatestLocation(DeviceLocation location) {
        QueryWrapper<LatestLocation> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("deviceId", location.getDeviceId());
        LatestLocation entity = BeanUtil.cast(location, LatestLocation.class);
        saveOrUpdate(entity, queryWrapper);
    }

    /**
     * 获取所有设备最新的位置信息
     */
    public List<DeviceWithLocationVo> getLatestLocation() {
        return baseMapper.getLatestLocation();
    }
}