package cn.iocoder.yudao.module.iot.gateway.protocol.modbus.tcpclient.handler.downstream;
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import cn.hutool.core.util.ObjUtil;
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import cn.iocoder.yudao.module.iot.core.biz.dto.IotModbusDeviceConfigRespDTO;
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import cn.iocoder.yudao.module.iot.core.biz.dto.IotModbusPointRespDTO;
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import cn.iocoder.yudao.module.iot.core.enums.IotDeviceMessageMethodEnum;
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import cn.iocoder.yudao.module.iot.core.mq.message.IotDeviceMessage;
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import cn.iocoder.yudao.module.iot.gateway.protocol.modbus.common.utils.IotModbusCommonUtils;
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import cn.iocoder.yudao.module.iot.gateway.protocol.modbus.common.utils.IotModbusTcpClientUtils;
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import cn.iocoder.yudao.module.iot.gateway.protocol.modbus.tcpclient.manager.IotModbusTcpClientConfigCacheService;
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import cn.iocoder.yudao.module.iot.gateway.protocol.modbus.tcpclient.manager.IotModbusTcpClientConnectionManager;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import java.util.Map;
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/**
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* IoT Modbus TCP Client 下行消息处理器
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* <p>
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* 负责:
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* 1. 处理下行消息(如属性设置 thing.service.property.set)
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* 2. 将属性值转换为 Modbus 写指令,通过 TCP 连接发送给设备
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*
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* @author 芋道源码
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*/
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@RequiredArgsConstructor
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@Slf4j
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public class IotModbusTcpClientDownstreamHandler {
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private final IotModbusTcpClientConnectionManager connectionManager;
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private final IotModbusTcpClientConfigCacheService configCacheService;
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/**
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* 处理下行消息
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*/
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@SuppressWarnings({"unchecked", "DuplicatedCode"})
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public void handle(IotDeviceMessage message) {
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// 1.1 检查是否是属性设置消息
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if (ObjUtil.equals(IotDeviceMessageMethodEnum.PROPERTY_POST.getMethod(), message.getMethod())) {
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return;
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}
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if (ObjUtil.notEqual(IotDeviceMessageMethodEnum.PROPERTY_SET.getMethod(), message.getMethod())) {
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log.warn("[handle][忽略非属性设置消息: {}]", message.getMethod());
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return;
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}
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// 1.2 获取设备配置
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IotModbusDeviceConfigRespDTO config = configCacheService.getConfig(message.getDeviceId());
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if (config == null) {
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log.warn("[handle][设备 {} 没有 Modbus 配置]", message.getDeviceId());
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return;
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}
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// 2. 解析属性值并写入
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Object params = message.getParams();
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if (!(params instanceof Map)) {
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log.warn("[handle][params 不是 Map 类型: {}]", params);
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return;
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}
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Map<String, Object> propertyMap = (Map<String, Object>) params;
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for (Map.Entry<String, Object> entry : propertyMap.entrySet()) {
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String identifier = entry.getKey();
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Object value = entry.getValue();
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// 2.1 查找对应的点位配置
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IotModbusPointRespDTO point = IotModbusCommonUtils.findPoint(config, identifier);
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if (point == null) {
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log.warn("[handle][设备 {} 没有点位配置: {}]", message.getDeviceId(), identifier);
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continue;
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}
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// 2.2 检查是否支持写操作
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if (!IotModbusCommonUtils.isWritable(point.getFunctionCode())) {
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log.warn("[handle][点位 {} 不支持写操作, 功能码={}]", identifier, point.getFunctionCode());
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continue;
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}
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// 2.3 执行写入
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writeProperty(config, point, value);
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}
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}
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/**
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* 写入属性值
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*/
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private void writeProperty(IotModbusDeviceConfigRespDTO config, IotModbusPointRespDTO point, Object value) {
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// 1.1 获取连接
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IotModbusTcpClientConnectionManager.ModbusConnection connection = connectionManager.getConnection(config.getDeviceId());
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if (connection == null) {
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log.warn("[writeProperty][设备 {} 没有连接]", config.getDeviceId());
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return;
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}
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// 1.2 获取 slave ID
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Integer slaveId = connectionManager.getSlaveId(config.getDeviceId());
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if (slaveId == null) {
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log.warn("[writeProperty][设备 {} 没有 slaveId]", config.getDeviceId());
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return;
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}
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// 2.1 转换属性值为原始值
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int[] rawValues = IotModbusCommonUtils.convertToRawValues(value, point);
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// 2.2 执行 Modbus 写入
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IotModbusTcpClientUtils.write(connection, slaveId, point, rawValues)
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.onSuccess(success -> log.info("[writeProperty][写入成功, deviceId={}, identifier={}, value={}]",
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config.getDeviceId(), point.getIdentifier(), value))
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.onFailure(e -> log.error("[writeProperty][写入失败, deviceId={}, identifier={}]",
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config.getDeviceId(), point.getIdentifier(), e));
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}
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}
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