【代码评审】IoT：MQTT 插件

yudao-module-iot/yudao-module-iot-plugins/yudao-module-iot-plugin-common/src/main/java/cn/iocoder/yudao/module/iot/plugin/common/util/IotPluginCommonUtils.java

@@ -53,7 +53,7 @@ public class IotPluginCommonUtils {
      * 将对象转换为 JSON 字符串后写入响应
      *
      * @param routingContext 路由上下文
-     * @param data           要转换为JSON的数据对象
+     * @param data           数据对象
      */
     @SuppressWarnings("deprecation")
     public static void writeJson(RoutingContext routingContext, Object data) {

yudao-module-iot/yudao-module-iot-plugins/yudao-module-iot-plugin-emqx/src/main/java/cn/iocoder/yudao/module/iot/plugin/emqx/upstream/IotDeviceUpstreamServer.java

@@ -1,5 +1,6 @@
 package cn.iocoder.yudao.module.iot.plugin.emqx.upstream;
 
+import cn.hutool.core.util.ArrayUtil;
 import cn.iocoder.yudao.module.iot.api.device.IotDeviceUpstreamApi;
 import cn.iocoder.yudao.module.iot.plugin.emqx.config.IotPluginEmqxProperties;
 import cn.iocoder.yudao.module.iot.plugin.emqx.upstream.router.IotDeviceAuthVertxHandler;
@@ -167,33 +168,28 @@ public class IotDeviceUpstreamServer {
      */
     private Future<Void> subscribeToTopics() {
         String[] topics = emqxProperties.getMqttTopics();
-        if (topics == null || topics.length == 0) {
+        if (ArrayUtil.isEmpty(topics)) {
             log.warn("[subscribeToTopics] 未配置MQTT主题，跳过订阅");
             return Future.succeededFuture();
         }
-
         log.info("[subscribeToTopics] 开始订阅设备上行消息主题");
 
         Future<Void> compositeFuture = Future.succeededFuture();
-
         for (String topic : topics) {
             String trimmedTopic = topic.trim();
             if (trimmedTopic.isEmpty()) {
                 continue;
             }
-
             compositeFuture = compositeFuture.compose(v -> client.subscribe(trimmedTopic, DEFAULT_QOS.value())
                     .<Void>map(ack -> {
                         log.info("[subscribeToTopics] 成功订阅主题: {}", trimmedTopic);
                         return null;
                     })
                     .recover(err -> {
-                        log.error("[subscribeToTopics] 订阅主题失败: {}, 原因: {}",
-                                trimmedTopic, err.getMessage());
+                        log.error("[subscribeToTopics] 订阅主题失败: {}, 原因: {}", trimmedTopic, err.getMessage());
                         return Future.<Void>succeededFuture(); // 继续订阅其他主题
                     }));
         }
-
         return compositeFuture;
     }
 
@@ -205,7 +201,6 @@ public class IotDeviceUpstreamServer {
             log.warn("[stop] 服务未运行，无需停止");
             return;
         }
-
         log.info("[stop] 开始关闭服务");
         isRunning = false;
 
@@ -213,11 +208,9 @@ public class IotDeviceUpstreamServer {
             CompletableFuture<Void> serverFuture = server != null
                     ? server.close().toCompletionStage().toCompletableFuture()
                     : CompletableFuture.completedFuture(null);
-
             CompletableFuture<Void> clientFuture = client != null
                     ? client.disconnect().toCompletionStage().toCompletableFuture()
                     : CompletableFuture.completedFuture(null);
-
             CompletableFuture<Void> vertxFuture = vertx != null
                     ? vertx.close().toCompletionStage().toCompletableFuture()
                     : CompletableFuture.completedFuture(null);

yudao-module-iot/yudao-module-iot-plugins/yudao-module-iot-plugin-emqx/src/main/java/cn/iocoder/yudao/module/iot/plugin/emqx/upstream/router/IotDeviceAuthVertxHandler.java

@@ -14,8 +14,7 @@ import java.util.Collections;
 
 /**
  * IoT Emqx 连接认证的 Vert.x Handler
- * <a href=
- * "https://docs.emqx.com/zh/emqx/latest/access-control/authn/http.html">...</a>
+ * <a href="https://docs.emqx.com/zh/emqx/latest/access-control/authn/http.html">MQTT HTTP</a>
  *
  * @author haohao
  */
@@ -31,12 +30,11 @@ public class IotDeviceAuthVertxHandler implements Handler<RoutingContext> {
     @SuppressWarnings("unchecked")
     public void handle(RoutingContext routingContext) {
         try {
+            // 构建认证请求 DTO
             JsonObject json = routingContext.body().asJsonObject();
             String clientId = json.getString("clientid");
             String username = json.getString("username");
             String password = json.getString("password");
-
-            // 构建认证请求DTO
             IotDeviceEmqxAuthReqDTO authReqDTO = new IotDeviceEmqxAuthReqDTO()
                     .setClientId(clientId)
                     .setUsername(username)
@@ -49,10 +47,12 @@ public class IotDeviceAuthVertxHandler implements Handler<RoutingContext> {
                 return;
             }
 
+            // 响应结果
             IotPluginCommonUtils.writeJson(routingContext, Collections.singletonMap("result", "allow"));
         } catch (Exception e) {
             log.error("[handle][EMQX 认证异常]", e);
             IotPluginCommonUtils.writeJson(routingContext, Collections.singletonMap("result", "deny"));
         }
     }
+
 }