【功能完善】IoT: 更新 Vert.x 版本至 4.5.1，新增 EMQX 插件及其相关配置，重构 MQTT 插件以支持 Vert.x MQTT 服务器，优化插件启动和停止逻辑，更新插件描述信息。
This commit is contained in:
安浩浩
parent
deab8c1cc6
commit
890d304340
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@ -626,6 +626,12 @@
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<artifactId>vertx-web</artifactId>
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<artifactId>vertx-web</artifactId>
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<version>${vertx.version}</version>
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<version>${vertx.version}</version>
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</dependency>
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</dependency>
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<!-- Vert.x MQTT 模块 -->
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<dependency>
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<groupId>io.vertx</groupId>
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<artifactId>vertx-mqtt</artifactId>
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<version>${vertx.version}</version>
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</dependency>
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</dependencies>
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</dependencies>
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</dependencyManagement>
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</dependencyManagement>
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@ -0,0 +1,6 @@
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plugin.id=emqx-plugin
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plugin.class=cn.iocoder.yudao.module.iot.plugin.EmqxPlugin
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plugin.version=0.0.1
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plugin.provider=ahh
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plugin.dependencies=
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plugin.description=emqx-plugin-0.0.1
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@ -0,0 +1,164 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="
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http://maven.apache.org/POM/4.0.0
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http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>yudao-module-iot-plugin</artifactId>
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<groupId>cn.iocoder.boot</groupId>
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<version>${revision}</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<packaging>jar</packaging>
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<artifactId>yudao-module-iot-emqx-plugin</artifactId>
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<name>${project.artifactId}</name>
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<description>
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物联网 插件模块 - emqx 插件
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</description>
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<properties>
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<!-- 插件相关 -->
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<plugin.id>emqx-plugin</plugin.id>
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<plugin.class>cn.iocoder.yudao.module.iot.plugin.EmqxPlugin</plugin.class>
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<plugin.version>0.0.1</plugin.version>
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<plugin.provider>ahh</plugin.provider>
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<plugin.description>emqx-plugin-0.0.1</plugin.description>
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<plugin.dependencies/>
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</properties>
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<build>
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<plugins>
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<!-- DOESN'T WORK WITH MAVEN 3 (I defined the plugin metadata in properties section)
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>properties-maven-plugin</artifactId>
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<version>1.0-alpha-2</version>
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<executions>
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<execution>
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<phase>initialize</phase>
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<goals>
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<goal>read-project-properties</goal>
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</goals>
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<configuration>
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<files>
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<file>plugin.properties</file>
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</files>
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</configuration>
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</execution>
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</executions>
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</plugin>
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-->
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-antrun-plugin</artifactId>
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<version>1.6</version>
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<executions>
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<execution>
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<id>unzip jar file</id>
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<phase>package</phase>
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<configuration>
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<target>
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<unzip src="target/${project.artifactId}-${project.version}.${project.packaging}"
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dest="target/plugin-classes"/>
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</target>
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</configuration>
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<goals>
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<goal>run</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<artifactId>maven-assembly-plugin</artifactId>
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<version>2.3</version>
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<configuration>
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<descriptors>
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<descriptor>
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src/main/assembly/assembly.xml
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</descriptor>
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</descriptors>
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<appendAssemblyId>false</appendAssemblyId>
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</configuration>
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<executions>
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<execution>
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<id>make-assembly</id>
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<phase>package</phase>
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<goals>
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<goal>attached</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-jar-plugin</artifactId>
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<version>2.4</version>
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<configuration>
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<archive>
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<manifestEntries>
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<Plugin-Id>${plugin.id}</Plugin-Id>
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<Plugin-Class>${plugin.class}</Plugin-Class>
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<Plugin-Version>${plugin.version}</Plugin-Version>
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<Plugin-Provider>${plugin.provider}</Plugin-Provider>
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<Plugin-Description>${plugin.description}</Plugin-Description>
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<Plugin-Dependencies>${plugin.dependencies}</Plugin-Dependencies>
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</manifestEntries>
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</archive>
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</configuration>
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</plugin>
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<plugin>
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<artifactId>maven-deploy-plugin</artifactId>
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<configuration>
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<skip>true</skip>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<dependencies>
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<!-- 其他依赖项 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<!-- PF4J Spring 集成 -->
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<dependency>
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<groupId>org.pf4j</groupId>
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<artifactId>pf4j-spring</artifactId>
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<scope>provided</scope>
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</dependency>
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<!-- 项目依赖 -->
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<dependency>
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<groupId>cn.iocoder.boot</groupId>
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<artifactId>yudao-module-iot-api</artifactId>
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<version>${revision}</version>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>${lombok.version}</version>
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<scope>provided</scope>
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</dependency>
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<!-- Vert.x 核心依赖 -->
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<dependency>
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<groupId>io.vertx</groupId>
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<artifactId>vertx-core</artifactId>
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</dependency>
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<!-- Vert.x Web 模块 -->
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<dependency>
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<groupId>io.vertx</groupId>
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<artifactId>vertx-web</artifactId>
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</dependency>
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<!-- MQTT -->
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<dependency>
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<groupId>org.eclipse.paho</groupId>
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<artifactId>org.eclipse.paho.client.mqttv3</artifactId>
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</dependency>
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</dependencies>
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</project>
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@ -0,0 +1,31 @@
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<assembly>
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<id>plugin</id>
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<formats>
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<format>zip</format>
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</formats>
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<includeBaseDirectory>false</includeBaseDirectory>
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<dependencySets>
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<dependencySet>
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<useProjectArtifact>false</useProjectArtifact>
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<scope>runtime</scope>
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<outputDirectory>lib</outputDirectory>
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<includes>
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<include>*:jar:*</include>
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</includes>
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</dependencySet>
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</dependencySets>
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<!--
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<fileSets>
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<fileSet>
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<directory>target/classes</directory>
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<outputDirectory>classes</outputDirectory>
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</fileSet>
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</fileSets>
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-->
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<fileSets>
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<fileSet>
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<directory>target/plugin-classes</directory>
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<outputDirectory>classes</outputDirectory>
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</fileSet>
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</fileSets>
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</assembly>
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@ -0,0 +1,45 @@
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package cn.iocoder.yudao.module.iot.plugin;
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import cn.iocoder.yudao.module.iot.api.ServiceRegistry;
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import cn.iocoder.yudao.module.iot.api.device.DeviceDataApi;
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import lombok.extern.slf4j.Slf4j;
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import org.pf4j.Plugin;
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import org.pf4j.PluginWrapper;
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import javax.annotation.Resource;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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@Slf4j
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public class EmqxPlugin extends Plugin {
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private ExecutorService executorService;
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@Resource
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private DeviceDataApi deviceDataApi;
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public EmqxPlugin(PluginWrapper wrapper) {
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super(wrapper);
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this.executorService = Executors.newSingleThreadExecutor();
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}
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@Override
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public void start() {
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log.info("EmqxPlugin.start()");
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if (executorService.isShutdown() || executorService.isTerminated()) {
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executorService = Executors.newSingleThreadExecutor();
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}
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deviceDataApi = ServiceRegistry.getService(DeviceDataApi.class);
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if (deviceDataApi == null) {
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log.error("未能从 ServiceRegistry 获取 DeviceDataApi 实例，请确保主程序已正确注册！");
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return;
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}
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}
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@Override
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public void stop() {
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log.info("EmqxPlugin.stop()");
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}
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}
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@ -147,20 +147,11 @@
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<version>${lombok.version}</version>
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<version>${lombok.version}</version>
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<scope>provided</scope>
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<scope>provided</scope>
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</dependency>
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</dependency>
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<!-- Vert.x 核心依赖 -->
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<!-- Vert.x Web -->
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<dependency>
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<groupId>io.vertx</groupId>
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<artifactId>vertx-core</artifactId>
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</dependency>
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<!-- Vert.x Web 模块 -->
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<dependency>
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<dependency>
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<groupId>io.vertx</groupId>
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<groupId>io.vertx</groupId>
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<artifactId>vertx-web</artifactId>
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<artifactId>vertx-web</artifactId>
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</dependency>
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<version>4.5.11</version>
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<!-- MQTT -->
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<dependency>
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<groupId>org.eclipse.paho</groupId>
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<artifactId>org.eclipse.paho.client.mqttv3</artifactId>
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</dependency>
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</dependency>
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</dependencies>
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</dependencies>
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</project>
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</project>
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plugin.id=mqtt-plugin
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plugin.id=mqtt-plugin
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plugin.description=Vert.x MQTT plugin
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plugin.class=cn.iocoder.yudao.module.iot.plugin.MqttPlugin
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plugin.class=cn.iocoder.yudao.module.iot.plugin.MqttPlugin
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plugin.version=0.0.1
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plugin.version=1.0.0
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plugin.requires=
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plugin.provider=ahh
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plugin.provider=ahh
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plugin.dependencies=
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plugin.license=Apache-2.0
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plugin.description=mqtt-plugin-0.0.1
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<version>${lombok.version}</version>
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<version>${lombok.version}</version>
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<scope>provided</scope>
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<scope>provided</scope>
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</dependency>
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</dependency>
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<!-- MQTT -->
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<!-- Vert.x MQTT -->
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<dependency>
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<dependency>
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<groupId>org.eclipse.paho</groupId>
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<groupId>io.vertx</groupId>
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<artifactId>org.eclipse.paho.client.mqttv3</artifactId>
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<artifactId>vertx-mqtt</artifactId>
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<version>4.5.11</version>
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</dependency>
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</dependency>
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</dependencies>
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</dependencies>
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</project>
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</project>
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@ -1,45 +1,36 @@
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package cn.iocoder.yudao.module.iot.plugin;
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package cn.iocoder.yudao.module.iot.plugin;
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import cn.iocoder.yudao.module.iot.api.ServiceRegistry;
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import cn.iocoder.yudao.module.iot.api.device.DeviceDataApi;
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import lombok.extern.slf4j.Slf4j;
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import lombok.extern.slf4j.Slf4j;
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import org.pf4j.Plugin;
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import org.pf4j.Plugin;
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import org.pf4j.PluginWrapper;
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import org.pf4j.PluginWrapper;
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import javax.annotation.Resource;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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@Slf4j
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@Slf4j
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public class MqttPlugin extends Plugin {
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public class MqttPlugin extends Plugin {
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private ExecutorService executorService;
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private MqttServerExtension mqttServerExtension;
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@Resource
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private DeviceDataApi deviceDataApi;
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public MqttPlugin(PluginWrapper wrapper) {
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public MqttPlugin(PluginWrapper wrapper) {
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super(wrapper);
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super(wrapper);
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this.executorService = Executors.newSingleThreadExecutor();
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}
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}
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@Override
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@Override
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public void start() {
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public void start() {
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log.info("MqttPlugin.start()");
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log.info("MQTT Plugin started.");
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mqttServerExtension = new MqttServerExtension();
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if (executorService.isShutdown() || executorService.isTerminated()) {
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mqttServerExtension.startMqttServer();
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executorService = Executors.newSingleThreadExecutor();
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}
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deviceDataApi = ServiceRegistry.getService(DeviceDataApi.class);
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if (deviceDataApi == null) {
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log.error("未能从 ServiceRegistry 获取 DeviceDataApi 实例，请确保主程序已正确注册！");
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return;
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}
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}
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}
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@Override
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@Override
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public void stop() {
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public void stop() {
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log.info("MqttPlugin.stop()");
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log.info("MQTT Plugin stopped.");
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if (mqttServerExtension != null) {
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mqttServerExtension.stopMqttServer().onComplete(ar -> {
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if (ar.succeeded()) {
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log.info("Stopped MQTT Server successfully");
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} else {
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log.error("Failed to stop MQTT Server: {}", ar.cause().getMessage());
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}
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});
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}
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}
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}
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}
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}
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@ -0,0 +1,231 @@
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package cn.iocoder.yudao.module.iot.plugin;
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import io.netty.handler.codec.mqtt.MqttProperties;
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import io.netty.handler.codec.mqtt.MqttQoS;
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import io.vertx.core.Future;
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import io.vertx.core.Vertx;
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import io.vertx.core.buffer.Buffer;
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import io.vertx.mqtt.MqttEndpoint;
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import io.vertx.mqtt.MqttServer;
|
||||||
|
import io.vertx.mqtt.MqttServerOptions;
|
||||||
|
import io.vertx.mqtt.MqttTopicSubscription;
|
||||||
|
import io.vertx.mqtt.messages.MqttDisconnectMessage;
|
||||||
|
import io.vertx.mqtt.messages.MqttPublishMessage;
|
||||||
|
import io.vertx.mqtt.messages.MqttSubscribeMessage;
|
||||||
|
import io.vertx.mqtt.messages.MqttUnsubscribeMessage;
|
||||||
|
import io.vertx.mqtt.messages.codes.MqttSubAckReasonCode;
|
||||||
|
import lombok.extern.slf4j.Slf4j;
|
||||||
|
import org.pf4j.Extension;
|
||||||
|
|
||||||
|
import java.nio.charset.Charset;
|
||||||
|
import java.util.ArrayList;
|
||||||
|
import java.util.List;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 根据官方示例，整合常见 MQTT 功能到 PF4J 的 Extension 类中
|
||||||
|
*/
|
||||||
|
@Slf4j
|
||||||
|
@Extension
|
||||||
|
public class MqttServerExtension {
|
||||||
|
|
||||||
|
private Vertx vertx;
|
||||||
|
private MqttServer mqttServer;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 启动 MQTT 服务端
|
||||||
|
* 可根据需要决定是否启用 SSL/TLS、WebSocket、多实例部署等
|
||||||
|
*/
|
||||||
|
public void startMqttServer() {
|
||||||
|
// 初始化 Vert.x
|
||||||
|
vertx = Vertx.vertx();
|
||||||
|
|
||||||
|
// ========== 如果需要 SSL/TLS，请参考下面注释，启用注释并替换端口、证书路径等 ==========
|
||||||
|
// MqttServerOptions options = new MqttServerOptions()
|
||||||
|
// .setPort(8883)
|
||||||
|
// .setKeyCertOptions(new PemKeyCertOptions()
|
||||||
|
// .setKeyPath("./src/test/resources/tls/server-key.pem")
|
||||||
|
// .setCertPath("./src/test/resources/tls/server-cert.pem"))
|
||||||
|
// .setSsl(true);
|
||||||
|
|
||||||
|
// ========== 如果需要 WebSocket，请设置 setUseWebSocket(true) ==========
|
||||||
|
// options.setUseWebSocket(true);
|
||||||
|
|
||||||
|
// ========== 默认不启用 SSL 的示例 ==========
|
||||||
|
MqttServerOptions options = new MqttServerOptions()
|
||||||
|
.setPort(1883)
|
||||||
|
.setHost("0.0.0.0")
|
||||||
|
.setUseWebSocket(false); // 如果需要 WebSocket，请改为 true
|
||||||
|
|
||||||
|
mqttServer = MqttServer.create(vertx, options);
|
||||||
|
|
||||||
|
// 指定 endpointHandler，处理客户端连接等
|
||||||
|
mqttServer.endpointHandler(endpoint -> {
|
||||||
|
handleClientConnect(endpoint);
|
||||||
|
handleDisconnect(endpoint);
|
||||||
|
handleSubscribe(endpoint);
|
||||||
|
handleUnsubscribe(endpoint);
|
||||||
|
handlePublish(endpoint);
|
||||||
|
handlePing(endpoint);
|
||||||
|
});
|
||||||
|
|
||||||
|
// 启动监听
|
||||||
|
mqttServer.listen(ar -> {
|
||||||
|
if (ar.succeeded()) {
|
||||||
|
log.info("MQTT server is listening on port {}", mqttServer.actualPort());
|
||||||
|
} else {
|
||||||
|
log.error("Error on starting the server", ar.cause());
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 优雅关闭 MQTT 服务端
|
||||||
|
*/
|
||||||
|
public Future<Void> stopMqttServer() {
|
||||||
|
if (mqttServer != null) {
|
||||||
|
return mqttServer.close().onComplete(ar -> {
|
||||||
|
if (ar.succeeded()) {
|
||||||
|
log.info("MQTT server closed.");
|
||||||
|
if (vertx != null) {
|
||||||
|
vertx.close();
|
||||||
|
log.info("Vert.x instance closed.");
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
log.error("Failed to close MQTT server: {}", ar.cause().getMessage());
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
return Future.succeededFuture();
|
||||||
|
}
|
||||||
|
|
||||||
|
// ==================== 以下为官方示例中常见事件的处理封装 ====================
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 处理客户端连接 (CONNECT)
|
||||||
|
*/
|
||||||
|
private void handleClientConnect(MqttEndpoint endpoint) {
|
||||||
|
// 打印 CONNECT 的主要信息
|
||||||
|
log.info("MQTT client [{}] request to connect, clean session = {}",
|
||||||
|
endpoint.clientIdentifier(), endpoint.isCleanSession());
|
||||||
|
|
||||||
|
if (endpoint.auth() != null) {
|
||||||
|
log.info("[username = {}, password = {}]", endpoint.auth().getUsername(), endpoint.auth().getPassword());
|
||||||
|
}
|
||||||
|
log.info("[properties = {}]", endpoint.connectProperties());
|
||||||
|
|
||||||
|
if (endpoint.will() != null) {
|
||||||
|
log.info("[will topic = {}, msg = {}, QoS = {}, isRetain = {}]",
|
||||||
|
endpoint.will().getWillTopic(),
|
||||||
|
new String(endpoint.will().getWillMessageBytes()),
|
||||||
|
endpoint.will().getWillQos(),
|
||||||
|
endpoint.will().isWillRetain());
|
||||||
|
}
|
||||||
|
|
||||||
|
log.info("[keep alive timeout = {}]", endpoint.keepAliveTimeSeconds());
|
||||||
|
|
||||||
|
// 接受远程客户端的连接
|
||||||
|
endpoint.accept(false);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 处理客户端主动断开 (DISCONNECT)
|
||||||
|
*/
|
||||||
|
private void handleDisconnect(MqttEndpoint endpoint) {
|
||||||
|
endpoint.disconnectMessageHandler((MqttDisconnectMessage disconnectMessage) -> {
|
||||||
|
log.info("Received disconnect from client [{}], reason code = {}",
|
||||||
|
endpoint.clientIdentifier(), disconnectMessage.code());
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 处理客户端订阅 (SUBSCRIBE)
|
||||||
|
*/
|
||||||
|
private void handleSubscribe(MqttEndpoint endpoint) {
|
||||||
|
endpoint.subscribeHandler((MqttSubscribeMessage subscribe) -> {
|
||||||
|
List<MqttSubAckReasonCode> reasonCodes = new ArrayList<>();
|
||||||
|
for (MqttTopicSubscription s : subscribe.topicSubscriptions()) {
|
||||||
|
log.info("Subscription for {} with QoS {}", s.topicName(), s.qualityOfService());
|
||||||
|
// 将客户端请求的 QoS 转换为返回给客户端的 reason code（可能是错误码或实际 granted QoS）
|
||||||
|
reasonCodes.add(MqttSubAckReasonCode.qosGranted(s.qualityOfService()));
|
||||||
|
}
|
||||||
|
// 回复 SUBACK，MQTT 5.0 时可指定 reasonCodes、properties
|
||||||
|
endpoint.subscribeAcknowledge(subscribe.messageId(), reasonCodes, MqttProperties.NO_PROPERTIES);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 处理客户端取消订阅 (UNSUBSCRIBE)
|
||||||
|
*/
|
||||||
|
private void handleUnsubscribe(MqttEndpoint endpoint) {
|
||||||
|
endpoint.unsubscribeHandler((MqttUnsubscribeMessage unsubscribe) -> {
|
||||||
|
for (String topic : unsubscribe.topics()) {
|
||||||
|
log.info("Unsubscription for {}", topic);
|
||||||
|
}
|
||||||
|
// 回复 UNSUBACK，MQTT 5.0 时可指定 reasonCodes、properties
|
||||||
|
endpoint.unsubscribeAcknowledge(unsubscribe.messageId());
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 处理客户端发布的消息 (PUBLISH)
|
||||||
|
*/
|
||||||
|
private void handlePublish(MqttEndpoint endpoint) {
|
||||||
|
// 接收 PUBLISH 消息
|
||||||
|
endpoint.publishHandler((MqttPublishMessage message) -> {
|
||||||
|
String payload = message.payload().toString(Charset.defaultCharset());
|
||||||
|
log.info("Received message [{}] on topic [{}] with QoS [{}]",
|
||||||
|
payload, message.topicName(), message.qosLevel());
|
||||||
|
|
||||||
|
// 根据不同 QoS，回复客户端
|
||||||
|
if (message.qosLevel() == MqttQoS.AT_LEAST_ONCE) {
|
||||||
|
endpoint.publishAcknowledge(message.messageId());
|
||||||
|
} else if (message.qosLevel() == MqttQoS.EXACTLY_ONCE) {
|
||||||
|
endpoint.publishReceived(message.messageId());
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
// 如果 QoS = 2，需要处理 PUBREL
|
||||||
|
endpoint.publishReleaseHandler(messageId -> {
|
||||||
|
endpoint.publishComplete(messageId);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 处理客户端 PINGREQ
|
||||||
|
*/
|
||||||
|
private void handlePing(MqttEndpoint endpoint) {
|
||||||
|
endpoint.pingHandler(v -> {
|
||||||
|
// 这里仅做日志, PINGRESP 已自动发送
|
||||||
|
log.info("Ping received from client [{}]", endpoint.clientIdentifier());
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
// ==================== 如果需要服务端向客户端发布消息，可用以下示例 ====================
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 服务端主动向已连接的某个 endpoint 发布消息的示例
|
||||||
|
* 如果使用 MQTT 5.0，可以传递更多消息属性
|
||||||
|
*/
|
||||||
|
public void publishToClient(MqttEndpoint endpoint, String topic, String content) {
|
||||||
|
endpoint.publish(topic,
|
||||||
|
Buffer.buffer(content),
|
||||||
|
MqttQoS.AT_LEAST_ONCE, // QoS 自行选择
|
||||||
|
false,
|
||||||
|
false);
|
||||||
|
|
||||||
|
// 处理 QoS 1 和 QoS 2 的 ACK
|
||||||
|
endpoint.publishAcknowledgeHandler(messageId -> {
|
||||||
|
log.info("Received PUBACK from client [{}] for messageId = {}", endpoint.clientIdentifier(), messageId);
|
||||||
|
}).publishReceivedHandler(messageId -> {
|
||||||
|
endpoint.publishRelease(messageId);
|
||||||
|
}).publishCompletionHandler(messageId -> {
|
||||||
|
log.info("Received PUBCOMP from client [{}] for messageId = {}", endpoint.clientIdentifier(), messageId);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
// ==================== 如果需要多实例部署，用于多核扩展，可参考以下思路 ====================
|
||||||
|
// 例如，在宿主应用或插件中循环启动多个 MqttServerExtension 实例，或使用 Vert.x 的 deployVerticle:
|
||||||
|
// DeploymentOptions options = new DeploymentOptions().setInstances(10);
|
||||||
|
// vertx.deployVerticle(() -> new MyMqttVerticle(), options);
|
||||||
|
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue