package cn.iocoder.yudao.module.iot.gateway.protocol.http;
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import cn.hutool.extra.spring.SpringUtil;
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import cn.iocoder.yudao.module.iot.core.enums.IotProtocolTypeEnum;
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import cn.iocoder.yudao.module.iot.core.messagebus.core.IotMessageBus;
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import cn.iocoder.yudao.module.iot.core.util.IotDeviceMessageUtils;
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import cn.iocoder.yudao.module.iot.gateway.config.IotGatewayProperties;
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import cn.iocoder.yudao.module.iot.gateway.config.IotGatewayProperties.ProtocolProperties;
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import cn.iocoder.yudao.module.iot.gateway.protocol.IotProtocol;
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import cn.iocoder.yudao.module.iot.gateway.protocol.http.handler.downstream.IotHttpDownstreamSubscriber;
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import cn.iocoder.yudao.module.iot.gateway.protocol.http.handler.upstream.IotHttpAuthHandler;
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import cn.iocoder.yudao.module.iot.gateway.protocol.http.handler.upstream.IotHttpRegisterHandler;
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import cn.iocoder.yudao.module.iot.gateway.protocol.http.handler.upstream.IotHttpRegisterSubHandler;
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import cn.iocoder.yudao.module.iot.gateway.protocol.http.handler.upstream.IotHttpUpstreamHandler;
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import io.vertx.core.Vertx;
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import io.vertx.core.http.HttpServer;
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import io.vertx.core.http.HttpServerOptions;
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import io.vertx.core.net.PemKeyCertOptions;
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import io.vertx.ext.web.Router;
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import io.vertx.ext.web.handler.BodyHandler;
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import lombok.Getter;
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import lombok.extern.slf4j.Slf4j;
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/**
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* IoT HTTP 协议实现
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* <p>
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* 基于 Vert.x 实现 HTTP 服务器，接收设备上行消息
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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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public class IotHttpProtocol implements IotProtocol {
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/**
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* 协议配置
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*/
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private final ProtocolProperties properties;
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/**
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* 服务器 ID（用于消息追踪，全局唯一）
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*/
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@Getter
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private final String serverId;
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/**
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* 运行状态
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*/
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@Getter
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private volatile boolean running = false;
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/**
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* Vert.x 实例
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*/
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private Vertx vertx;
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/**
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* HTTP 服务器
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*/
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private HttpServer httpServer;
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/**
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* 下行消息订阅者
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*/
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private IotHttpDownstreamSubscriber downstreamSubscriber;
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public IotHttpProtocol(ProtocolProperties properties) {
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this.properties = properties;
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this.serverId = IotDeviceMessageUtils.generateServerId(properties.getPort());
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}
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@Override
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public String getId() {
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return properties.getId();
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}
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@Override
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public IotProtocolTypeEnum getType() {
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return IotProtocolTypeEnum.HTTP;
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}
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@Override
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public void start() {
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if (running) {
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log.warn("[start][IoT HTTP 协议 {} 已经在运行中]", getId());
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return;
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}
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// 1.1 创建 Vertx 实例
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this.vertx = Vertx.vertx();
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// 1.2 创建路由
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Router router = Router.router(vertx);
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router.route().handler(BodyHandler.create());
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// 1.3 创建处理器，添加路由处理器
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IotHttpAuthHandler authHandler = new IotHttpAuthHandler(this);
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router.post(IotHttpAuthHandler.PATH).handler(authHandler);
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IotHttpRegisterHandler registerHandler = new IotHttpRegisterHandler();
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router.post(IotHttpRegisterHandler.PATH).handler(registerHandler);
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IotHttpRegisterSubHandler registerSubHandler = new IotHttpRegisterSubHandler();
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router.post(IotHttpRegisterSubHandler.PATH).handler(registerSubHandler);
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IotHttpUpstreamHandler upstreamHandler = new IotHttpUpstreamHandler(this);
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router.post(IotHttpUpstreamHandler.PATH).handler(upstreamHandler);
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// 1.4 启动 HTTP 服务器
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HttpServerOptions options = new HttpServerOptions().setPort(properties.getPort());
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IotGatewayProperties.SslConfig sslConfig = properties.getSsl();
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if (sslConfig != null && Boolean.TRUE.equals(sslConfig.getSsl())) {
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PemKeyCertOptions pemKeyCertOptions = new PemKeyCertOptions()
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.setKeyPath(sslConfig.getSslKeyPath())
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.setCertPath(sslConfig.getSslCertPath());
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options = options.setSsl(true).setKeyCertOptions(pemKeyCertOptions);
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}
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try {
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httpServer = vertx.createHttpServer(options)
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.requestHandler(router)
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.listen()
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.result();
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running = true;
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log.info("[start][IoT HTTP 协议 {} 启动成功，端口：{}，serverId：{}]",
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getId(), properties.getPort(), serverId);
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// 2. 启动下行消息订阅者
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IotMessageBus messageBus = SpringUtil.getBean(IotMessageBus.class);
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this.downstreamSubscriber = new IotHttpDownstreamSubscriber(this, messageBus);
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this.downstreamSubscriber.start();
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} catch (Exception e) {
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log.error("[start][IoT HTTP 协议 {} 启动失败]", getId(), e);
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stop0();
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throw e;
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}
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}
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@Override
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public void stop() {
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if (!running) {
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return;
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}
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stop0();
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}
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private void stop0() {
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// 1. 停止下行消息订阅者
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if (downstreamSubscriber != null) {
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try {
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downstreamSubscriber.stop();
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log.info("[stop][IoT HTTP 协议 {} 下行消息订阅者已停止]", getId());
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} catch (Exception e) {
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log.error("[stop][IoT HTTP 协议 {} 下行消息订阅者停止失败]", getId(), e);
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}
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downstreamSubscriber = null;
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}
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// 2.1 关闭 HTTP 服务器
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if (httpServer != null) {
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try {
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httpServer.close().result();
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log.info("[stop][IoT HTTP 协议 {} 服务器已停止]", getId());
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} catch (Exception e) {
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log.error("[stop][IoT HTTP 协议 {} 服务器停止失败]", getId(), e);
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}
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httpServer = null;
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}
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// 2.2 关闭 Vertx 实例
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if (vertx != null) {
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try {
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vertx.close().result();
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log.info("[stop][IoT HTTP 协议 {} Vertx 已关闭]", getId());
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} catch (Exception e) {
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log.error("[stop][IoT HTTP 协议 {} Vertx 关闭失败]", getId(), e);
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}
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vertx = null;
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}
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running = false;
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log.info("[stop][IoT HTTP 协议 {} 已停止]", getId());
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}
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}
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