review：【IoT 物联网】mqtt 协议的实现（整体没问题了）

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/emqx/IotEmqxUpstreamProtocol.java

@@ -67,6 +67,7 @@ public class IotEmqxUpstreamProtocol {
             stop();
 
             // 异步关闭应用
+            // TODO haohao：是不是不用 sleep 也行哈？
             Thread shutdownThread = new Thread(() -> {
                 ThreadUtil.sleep(1000);
                 log.error("[start][由于 MQTT 连接失败，正在关闭应用]");
@@ -128,12 +129,9 @@ public class IotEmqxUpstreamProtocol {
     private void connectMqttSync() {
         String host = emqxProperties.getMqttHost();
         int port = emqxProperties.getMqttPort();
-
-        // 1. 创建同步等待对象
+        // 1. 连接 MQTT Broker
         CountDownLatch latch = new CountDownLatch(1);
         AtomicBoolean success = new AtomicBoolean(false);
-
-        // 2. 连接 MQTT Broker
         mqttClient.connect(port, host, connectResult -> {
             if (connectResult.succeeded()) {
                 log.info("[connectMqttSync][MQTT 客户端连接成功, host: {}, port: {}]", host, port);
@@ -147,16 +145,16 @@ public class IotEmqxUpstreamProtocol {
             latch.countDown();
         });
 
-        // 3. 等待连接结果
+        // 2. 等待连接结果
         try {
+            // TODO @haohao：想了下，timeout 可以不设置，全靠 mqttclient 的超时时间？
             boolean awaitResult = latch.await(10, java.util.concurrent.TimeUnit.SECONDS);
             if (!awaitResult) {
                 log.error("[connectMqttSync][等待连接结果超时]");
                 throw new RuntimeException("连接 MQTT Broker 超时");
             }
             if (!success.get()) {
-                throw new RuntimeException(String.format("首次连接 MQTT Broker 失败，地址: %s, 端口: %d",
-                        host, port));
+                throw new RuntimeException(String.format("首次连接 MQTT Broker 失败，地址: %s, 端口: %d", host, port));
             }
         } catch (InterruptedException e) {
             Thread.currentThread().interrupt();
@@ -171,7 +169,6 @@ public class IotEmqxUpstreamProtocol {
     private void connectMqttAsync() {
         String host = emqxProperties.getMqttHost();
         int port = emqxProperties.getMqttPort();
-
         mqttClient.connect(port, host, connectResult -> {
             if (connectResult.succeeded()) {
                 log.info("[connectMqttAsync][MQTT 客户端重连成功]");
@@ -199,7 +196,6 @@ public class IotEmqxUpstreamProtocol {
 
         long delay = emqxProperties.getReconnectDelayMs();
         log.info("[reconnectWithDelay][将在 {} 毫秒后尝试重连 MQTT Broker]", delay);
-
         vertx.setTimer(delay, timerId -> {
             if (!isRunning) {
                 return;
@@ -226,7 +222,6 @@ public class IotEmqxUpstreamProtocol {
         if (mqttClient == null) {
             return;
         }
-
         try {
             if (mqttClient.isConnected()) {
                 // 1. 取消订阅所有主题

yudao-module-iot/yudao-module-iot-gateway/src/main/java/cn/iocoder/yudao/module/iot/gateway/protocol/emqx/router/IotEmqxDownstreamHandler.java

@@ -79,6 +79,7 @@ public class IotEmqxDownstreamHandler {
         boolean isReply = IotDeviceMessageUtils.isReplyMessage(message);
 
         // TODO @芋艿：需要添加对应的 Topic，所以需要先判断消息方法类型
+        // TODO @haohao：基于 method，然后逆推对应的 topic，可以哇？约定好~
         // 根据消息方法和回复状态构建对应的主题
         switch (methodEnum) {
             case PROPERTY_POST: