Java 开发笔记16

异步新增和更新：
@Override
    public int saveBroadcastStatusInfo(String bureauCode, String stationCode, List<BroadcastInfoDTO> broadcastInfoDTOList) {
        // 转为 deviceId - this map集合
        Map<String, BroadcastStatus> deviceIdThisMap = broadcastInfoDTOList.stream().map(o -> {
            BroadcastStatus target = new BroadcastStatus();
//            BeanUtils.copyProperties(o, target);
            target.setDeviceId(o.getDeviceID());
            target.setDeviceName(o.getDeviceName());
            target.setDeviceClass(o.getDeviceClass());
            target.setOnlineStatus(o.getStatus().getOnlineStatus());
            target.setFaultState(o.getStatus().getFaultState());
            target.setFaultDescribe(o.getStatus().getFaultDescribe());
            target.setOcupyState(o.getStatus().getOcupyState());
            target.setOcupyDescribe(o.getStatus().getOcupyDescribe());
            target.setTemp(o.getStatus().getTemp());
            target.setBureauCode(bureauCode);
            target.setStationCode(stationCode);
            target.setCreateTime(new Date());
            target.setModifyTime(new Date());
            return target;
        }).collect(Collectors.toMap(BroadcastStatus::getDeviceId, BroadcastStatus -> BroadcastStatus));

        // 获取当前车站所有数据集合
        LambdaQueryWrapper<BroadcastStatus> queryWrapper = new LambdaQueryWrapper<BroadcastStatus>().eq(BroadcastStatus::getBureauCode, bureauCode).eq(BroadcastStatus::getStationCode, stationCode);
        List<BroadcastStatus> dbAllList = broadcastStatusMapper.selectList(queryWrapper);

        // 数据库当前设备id集合
        Set<String> dbDeviceIds = dbAllList.stream().map(BroadcastStatus::getDeviceId).collect(Collectors.toSet());

        // 异步更新
        CompletableFuture<Integer> updateFuture = CompletableFuture.supplyAsync(() -> {
            List<BroadcastStatus> upList = deviceIdThisMap.keySet().stream().filter(dbDeviceIds::contains).map(deviceIdThisMap::get).collect(Collectors.toList());
            int size = 0;
            if (!CollectionUtils.isEmpty(upList)) {
                size = broadcastStatusMapper.batchUpdate(bureauCode, stationCode, upList);
            }
            return size;
        }, executor);


        // 异步插入数据
        CompletableFuture<Integer> insertFuture = CompletableFuture.supplyAsync(() -> {
            List<BroadcastStatus> insertList = deviceIdThisMap.keySet().stream().filter(deviceId -> !dbDeviceIds.contains(deviceId)).map(deviceIdThisMap::get).collect(Collectors.toList());
            int size = 0;
            if (!CollectionUtils.isEmpty(insertList)) {
                size = broadcastStatusMapper.batchInsert(insertList);
            }
            return size;
        }, executor);

//        //TODO 广播状态插入历史记录表
//        List<BroadcastStatus> collect = deviceIdThisMap.keySet().stream().map(deviceIdThisMap::get).collect(Collectors.toList());
//        if(!CollectionUtils.isEmpty(collect)) {
//            broadcastStatusHistoryMapper.batchInsertHistory(collect);
//        }

        try {
            Integer updateSize = updateFuture.get();
            Integer insertSize = insertFuture.get();
            return insertSize + updateSize;
        } catch (InterruptedException | ExecutionException e) {
            log.error("设备状态信息-广播状态信息保存错误:", e);
        }

        return 0;
    }