xy-device/device-api-service/src/main/java/com/xy/service/MqttServiceImpl.java

package com.xy.service;

import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xy.annotation.LogOperate;
import com.xy.collections.list.JArrayList;
import com.xy.collections.list.JList;
import com.xy.collections.map.JHashMap;
import com.xy.collections.map.JMap;
import com.xy.dto.*;
import com.xy.entity.DeviceInfo;
import com.xy.entity.MqttCommand;
import com.xy.enums.LogEnum;
import com.xy.mapper.MqttCommandMapper;
import com.xy.service.factory.cmd.CmdService;
import com.xy.service.factory.device.DeviceFactory;
import com.xy.utils.*;
import com.xy.utils.enums.MqttCommandStatusEnum;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import static com.xy.utils.PlusBeans.*;

@Slf4j
@Service
@Api(tags = "mqtt接口")
@RequiredArgsConstructor
public class MqttServiceImpl extends ServiceImpl<MqttCommandMapper, MqttCommand> implements MqttService {

    private final DeviceMqttSendService deviceMqttSendService;

    private final RedisService<String> redisService;

    private final DeviceInfoServiceImpl deviceInfoService;

    private String keyStr = "mqtt:cmd:result:%d";

    public long getSn() {
        return redisService.atomicIncrease(CommConsts.CMD_ATOM_SN);
    }

    public long getWkSn() {
        return redisService.atomicIncrease(CommConsts.CMD_ATOM_WK_SN);
    }

    public List<Tuple.Tuple3<Long, Long, Boolean>> sendMqtt(List<MqttCmdDto> mqttDtos) {
        String time = DataTime.getSring();
        List<Tuple.Tuple3<Long, Long, Boolean>> list = new ArrayList<>(mqttDtos.size());
        mqttDtos.forEach(mqttDto -> {
            //给予默认值
            PaterDto pater = mqttDto.getPater()
                    .setSn(getSn())
                    .setTime(time)
                    .setDeviceId(mqttDto.getDeviceId())
                    .setDebug(mqttDto.getDebug());
            //延迟发布处理
            String delayTime = mqttDto.getDelayTime();
            String topic = mqttDto.getDeviceId() + CommConsts.DEVICE_MQTT_TOPIC_SUFFIX;
            if (!StringUtils.isEmpty(delayTime)) {
                //消息消费时间 - 发布时间的差值 = 距今被消费的秒数
                long m = DataTime.diff(DataTime.toLocal(pater.getTime()), DataTime.toLocal(delayTime), "s");
                topic = String.format("$delayed/%d/%s", m, topic);
                mqttDto.setTimeout(mqttDto.getTimeout() + (int) m);
            }
            //消息过期时间
            pater.setTimeout(mqttDto.getTimeout());
            JSONObject value = JSONUtil.parseObj(pater);
            Long wkSn = pater.getWkSn();
            try {
                //指令记录
                saveMqttCommand(mqttDto, topic, value, pater.getAck() ? MqttCommandStatusEnum.COMMAND_SEND : MqttCommandStatusEnum.COMMAND_EXE_SUCCESS, null);
                //发送消息
                deviceMqttSendService.cmd(new MqttDto.CmdParams()
                        .setQos(mqttDto.getLevel())
                        .setData(value.toString())
                        .setTopic(topic)
                );
                list.add(new Tuple.Tuple3<>(wkSn, pater.getSn(), true));
            } catch (Exception e) {
                //指令记录
                saveMqttCommand(mqttDto, topic, value, MqttCommandStatusEnum.COMMAND_SEND_FAIL, e.getMessage());
                list.add(new Tuple.Tuple3<>(wkSn, pater.getSn(), false));
            }
        });
        return list;
    }

    @Override
    @LogOperate
    @ApiOperation("指令发送")
    public R<List<Tuple.Tuple3<Long, Long, Boolean>>> senCommand(List<CommandMqtt> commandMqtts) {
        JList<CommandMqtt> commandMqttsList = new JArrayList<>(commandMqtts);
        List<DeviceInfo> deviceInfos = deviceInfoService.list(new LambdaQueryWrapper<DeviceInfo>().in(DeviceInfo::getDeviceId, commandMqttsList.getProperty(CommandMqtt::getDeviceId).comparing()));
        JMap<Long, DeviceInfo> deviceInfosJMaps = new JArrayList<>(deviceInfos).toMap(DeviceInfo::getDeviceId).cover();
        JMap<Integer, JList<CommandMqtt>> jMap = new JHashMap<>();
        commandMqtts.forEach(commandMqtt -> {
            DeviceInfo deviceInfo = deviceInfosJMaps.get(commandMqtt.getDeviceId());
            if (deviceInfo == null) {
                return;
            }
            if (!jMap.containsKey(deviceInfo.getDeviceType())) {
                jMap.put(deviceInfo.getDeviceType(), new JArrayList<>());
            }
            jMap.get(deviceInfo.getDeviceType()).set(commandMqtt);
        });
        List<Tuple.Tuple3<Long, Long, Boolean>> list = new ArrayList<>();
        jMap.forEach((deviceType, commandMqttss) -> {
            List<Tuple.Tuple3<Long, Long, Boolean>> data = FactoryUtils.getServiceRoute(DeviceFactory.class, deviceType)
                    .senCommand(commandMqttss).getData();
            if (data != null) {
                list.addAll(data);
            }
        });
        return R.ok(list).setLogMsg(JSONUtil.parseArray(jMap.getValues()).toString());
    }

    @ApiOperation("指令Ack")
    @PostMapping("commandAck")
    public R commandAck(@RequestBody @Validated AckMqttDto ackMqttDto) {
        MqttCommand mqttCommand = getById(ackMqttDto.getSn());
        if (!Emptys.check(mqttCommand)) {
            return R.fail("数据不存在");
        }
        //写入mysql
        mqttCommand.setStatus(Integer.valueOf(ackMqttDto.getStatusEnum().getKey()))
                .setBackClientTime(DataTime.toString(ackMqttDto.getBackClientTime()))
                .setBackServerTime(DataTime.getSring());
        updateById(mqttCommand);
        //写入redis
        String result = ackMqttDto.getResult().toString();
        if (Emptys.check(ackMqttDto.getResult())) {
            String key = String.format(keyStr, ackMqttDto.getSn());
            String backClientTime = DataTime.toString(ackMqttDto.getBackClientTime());
            Map<String, String> map = redisService.getMap(key);
            if (Emptys.check(map)) {
                String time = map.get("time");
                if (DataTime.stringContrast(time, backClientTime) >= 0) {
                    return R.ok();
                }
            }
            JMap<String, String> jmap = new JHashMap<String, String>().set("time", backClientTime).set("result", result);
            redisService.setMap(key, jmap);
            redisService.timeout(key, 300);
        }
        return R.ok();
    }

    @ApiOperation("指令结果通知")
    @PostMapping("commandResultBack")
    public R commandResultBack(@RequestBody @Validated MqttCmdDto.ResultBack resultBack) {
        return FactoryUtils.getService(CmdService.class, resultBack.getCmdType()).resultBack(resultBack);
    }

    @PostMapping("snByCmdAndResult")
    @ApiOperation("sn查询指令和结果数据")
    public R<MqttCmdDto.Vo3> snByCmdAndResult(@RequestBody MqttCmdDto.SnByCmdAndResult snByCmdAndResult) {
        MqttCommand mqttCommand = getById(snByCmdAndResult.getSn());
        String key = String.format(keyStr, snByCmdAndResult.getSn());
        Map<String, String> map = redisService.getMap(key);
        MqttCmdDto.Vo3 vo3 = copy(MqttCmdDto.Vo3.class, mqttCommand);
        if (Emptys.check(map)) {
            String result = map.get("result");
            vo3.setResult(JSONUtil.parseObj(result));
        }
        return R.ok(vo3);
    }

    @PostMapping("page")
    @ApiOperation("分页查询")
    public R<PageBean<MqttCmdDto.Vo2>> page(@RequestBody MqttCmdDto.Page page) {
        LambdaQueryWrapper<MqttCommand> lambdaQueryWrapper = new MybatisPlusQuery().eqWrapper(page, MqttCommand.class)
                .like(MqttCommand::getError)
                .like(MqttCommand::getValue)
                .ge(MqttCommand::getSendTime, page.getBeginSendTime())
                .le(MqttCommand::getSendTime, page.getEndSendTime())
                .ge(MqttCommand::getTimeout, page.getBeginTimeout())
                .le(MqttCommand::getTimeout, page.getEndTimeout())
                .ge(MqttCommand::getDelayTime, page.getBeginDelayTime())
                .le(MqttCommand::getDelayTime, page.getEndDelayTime())
                .build()
                .orderByDesc(MqttCommand::getSendTime);
        PageBean pageBean = page.getPage();
        IPage<MqttCommand> iPage = page(toIPage(pageBean), lambdaQueryWrapper);
        return R.ok(toPageBean(MqttCmdDto.Vo2.class, iPage));
    }


    /**
     * 新增指令记录
     *
     * @param mqttDto 参数对象
     * @param value   参数json对象
     * @param status  状态
     * @param error   错误信息
     */
    private void saveMqttCommand(MqttCmdDto mqttDto, String topic, JSONObject value, MqttCommandStatusEnum status, String error) {
        PaterDto pater = mqttDto.getPater();
        MqttCommand mqttCommand = Beans.copy(Beans.copy(MqttCommand.class, mqttDto), pater)
                .setSn(pater.getSn())
                .setWkSn(pater.getWkSn())
                .setTopic(topic)
                .setStatus(Integer.parseInt(status.getKey()))
                .setValue(value.toString())
                .setSendTime(pater.getTime())
                .setNum(1)
                .setError(error);
        save(mqttCommand);
    }

}