package cn.iocoder.yudao.module.iot.gateway.protocol.udp;
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import cn.hutool.core.map.MapUtil;
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import cn.iocoder.yudao.module.iot.core.biz.dto.IotDeviceAuthReqDTO;
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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.core.topic.event.IotDeviceEventPostReqDTO;
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import cn.iocoder.yudao.module.iot.core.topic.property.IotDevicePropertyPostReqDTO;
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import cn.iocoder.yudao.module.iot.core.util.IotDeviceAuthUtils;
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import cn.iocoder.yudao.module.iot.gateway.serialize.IotMessageSerializer;
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import cn.iocoder.yudao.module.iot.gateway.serialize.json.IotJsonSerializer;
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import lombok.extern.slf4j.Slf4j;
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import org.junit.jupiter.api.Disabled;
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import org.junit.jupiter.api.Test;
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import java.net.DatagramPacket;
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import java.net.DatagramSocket;
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import java.net.InetAddress;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* IoT 网关子设备 UDP 协议集成测试（手动测试）
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*
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* <p>测试场景：子设备（IotProductDeviceTypeEnum 的 SUB 类型）通过网关设备代理上报数据
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*
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* <p><b>重要说明：子设备无法直接连接平台，所有请求均由网关设备（Gateway）代为转发。</b>
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* <p>网关设备转发子设备请求时，Token 使用子设备自己的信息。
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*
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* <p>使用步骤：
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* <ol>
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* <li>启动 yudao-module-iot-gateway 服务（UDP 端口 8093）</li>
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* <li>确保子设备已通过 {@link IotGatewayDeviceUdpProtocolIntegrationTest#testTopoAdd()} 绑定到网关</li>
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* <li>运行 {@link #testAuth()} 获取子设备 token，将返回的 token 粘贴到 {@link #TOKEN} 常量</li>
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* <li>运行以下测试方法：
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* <ul>
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* <li>{@link #testPropertyPost()} - 子设备属性上报（由网关代理转发）</li>
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* <li>{@link #testEventPost()} - 子设备事件上报（由网关代理转发）</li>
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* </ul>
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* </li>
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* </ol>
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*
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* <p>注意：UDP 协议是无状态的，每次请求需要在 params 中携带 token（与 HTTP 通过 Header 传递不同）
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*
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* @author 芋道源码
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*/
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@Slf4j
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@Disabled
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public class IotGatewaySubDeviceUdpProtocolIntegrationTest {
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private static final String SERVER_HOST = "127.0.0.1";
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private static final int SERVER_PORT = 8093;
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private static final int TIMEOUT_MS = 5000;
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// ===================== 序列化器 =====================
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/**
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* 消息序列化器
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*/
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private static final IotMessageSerializer SERIALIZER = new IotJsonSerializer();
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// ===================== 网关子设备信息（根据实际情况修改，从 iot_device 表查询子设备） =====================
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private static final String PRODUCT_KEY = "jAufEMTF1W6wnPhn";
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private static final String DEVICE_NAME = "chazuo-it";
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private static final String DEVICE_SECRET = "d46ef9b28ab14238b9c00a3a668032af";
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/**
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* 网关子设备 Token：从 {@link #testAuth()} 方法获取后，粘贴到这里
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*/
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private static final String TOKEN = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJwcm9kdWN0S2V5IjoiakF1ZkVNVEYxVzZ3blBobiIsImV4cCI6MTc2OTk1NDY3OSwiZGV2aWNlTmFtZSI6ImNoYXp1by1pdCJ9.jfbUAoU0xkJl4UvO-NUvcJ6yITPRgUjQ4MKATPuwneg";
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// ===================== 认证测试 =====================
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/**
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* 子设备认证测试：获取子设备 Token
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*/
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@Test
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public void testAuth() throws Exception {
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// 1. 构建认证消息
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IotDeviceAuthReqDTO authInfo = IotDeviceAuthUtils.getAuthInfo(PRODUCT_KEY, DEVICE_NAME, DEVICE_SECRET);
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IotDeviceAuthReqDTO authReqDTO = new IotDeviceAuthReqDTO()
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.setClientId(authInfo.getClientId())
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.setUsername(authInfo.getUsername())
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.setPassword(authInfo.getPassword());
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IotDeviceMessage request = IotDeviceMessage.requestOf("auth", authReqDTO);
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// 2. 发送并接收响应
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IotDeviceMessage response = sendAndReceive(request);
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log.info("[testAuth][响应消息: {}]", response);
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log.info("[testAuth][请将返回的 token 复制到 TOKEN 常量中]");
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}
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// ===================== 子设备属性上报测试 =====================
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/**
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* 子设备属性上报测试
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*/
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@Test
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public void testPropertyPost() throws Exception {
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// 1. 构建属性上报消息
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IotDeviceMessage request = IotDeviceMessage.requestOf(
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IotDeviceMessageMethodEnum.PROPERTY_POST.getMethod(),
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withToken(IotDevicePropertyPostReqDTO.of(MapUtil.<String, Object>builder()
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.put("power", 100)
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.put("status", "online")
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.put("temperature", 36.5)
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.build())));
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log.info("[testPropertyPost][子设备属性上报 - 请求实际由 Gateway 代为转发]");
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// 2. 发送并接收响应
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IotDeviceMessage response = sendAndReceive(request);
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log.info("[testPropertyPost][响应消息: {}]", response);
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}
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// ===================== 子设备事件上报测试 =====================
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/**
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* 子设备事件上报测试
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*/
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@Test
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public void testEventPost() throws Exception {
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// 1. 构建事件上报消息
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IotDeviceMessage request = IotDeviceMessage.requestOf(
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IotDeviceMessageMethodEnum.EVENT_POST.getMethod(),
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withToken(IotDeviceEventPostReqDTO.of(
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"alarm",
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MapUtil.<String, Object>builder()
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.put("level", "warning")
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.put("message", "temperature too high")
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.put("threshold", 40)
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.put("current", 42)
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.build(),
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System.currentTimeMillis())));
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log.info("[testEventPost][子设备事件上报 - 请求实际由 Gateway 代为转发]");
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// 2. 发送并接收响应
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IotDeviceMessage response = sendAndReceive(request);
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log.info("[testEventPost][响应消息: {}]", response);
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}
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// ===================== 辅助方法 =====================
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/**
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* 构建带 token 的 params
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*/
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private Map<String, Object> withToken(Object params) {
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Map<String, Object> result = new HashMap<>();
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result.put("token", TOKEN);
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result.put("body", params);
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return result;
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}
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/**
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* 发送 UDP 消息并接收响应
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*/
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private IotDeviceMessage sendAndReceive(IotDeviceMessage request) throws Exception {
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byte[] payload = SERIALIZER.serialize(request);
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log.info("[sendAndReceive][发送消息: {}，数据长度: {} 字节]", request.getMethod(), payload.length);
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try (DatagramSocket socket = new DatagramSocket()) {
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socket.setSoTimeout(TIMEOUT_MS);
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InetAddress address = InetAddress.getByName(SERVER_HOST);
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DatagramPacket sendPacket = new DatagramPacket(payload, payload.length, address, SERVER_PORT);
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socket.send(sendPacket);
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byte[] receiveData = new byte[4096];
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DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
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try {
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socket.receive(receivePacket);
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byte[] responseBytes = new byte[receivePacket.getLength()];
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System.arraycopy(receivePacket.getData(), 0, responseBytes, 0, receivePacket.getLength());
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return SERIALIZER.deserialize(responseBytes);
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} catch (java.net.SocketTimeoutException e) {
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log.warn("[sendAndReceive][接收响应超时]");
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return null;
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}
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}
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}
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}
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