package com.xcong.excoin.modules.newPrice;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONArray;
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import com.alibaba.fastjson.JSONObject;
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import com.xcong.excoin.rabbit.pricequeue.WebsocketPriceService;
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import com.xcong.excoin.utils.CoinTypeConvert;
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import com.xcong.excoin.utils.RedisUtils;
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import lombok.extern.slf4j.Slf4j;
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import org.java_websocket.client.WebSocketClient;
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import org.java_websocket.handshake.ServerHandshake;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
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import org.springframework.stereotype.Component;
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import javax.annotation.PostConstruct;
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import javax.annotation.PreDestroy;
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import javax.annotation.Resource;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.util.concurrent.*;
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import java.util.concurrent.atomic.AtomicReference;
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/**
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* OKX 新价格 WebSocket 客户端类，用于连接 OKX 的 WebSocket 接口，
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* 实时获取并处理标记价格（mark price）数据，并将价格信息存储到 Redis 中。
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* 同时支持心跳检测、自动重连以及异常恢复机制。
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* @author Administrator
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*/
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@Slf4j
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@Component
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@ConditionalOnProperty(prefix = "app", name = "websocket", havingValue = "true")
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public class OkxNewPriceWebSocketClient {
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@Resource
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private WebsocketPriceService websocketPriceService;
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@Resource
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private RedisUtils redisUtils;
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private WebSocketClient webSocketClient;
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private ScheduledExecutorService heartbeatExecutor;
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private volatile ScheduledFuture<?> pongTimeoutFuture;
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private final AtomicReference<Long> lastMessageTime = new AtomicReference<>(System.currentTimeMillis());
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private static final String WS_URL = "wss://ws.okx.com:8443/ws/v5/public";
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private static final String CHANNEL = "mark-price";
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private static final String[] INST_IDS = {
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"EOS-USDT","BTC-USDT", "ETH-USDT", "XRP-USDT", "LTC-USDT", "BCH-USDT", "ETC-USDT"
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};
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// 心跳超时时间(秒)，小于30秒
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private static final int HEARTBEAT_TIMEOUT = 10;
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// 共享线程池用于重连等异步任务
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private final ExecutorService sharedExecutor = Executors.newCachedThreadPool(r -> {
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Thread t = new Thread(r, "okx-ws-shared-worker");
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t.setDaemon(true);
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return t;
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});
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/**
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* 初始化方法，在 Spring Bean 构造完成后执行。
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* 负责建立 WebSocket 连接并启动心跳检测任务。
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*/
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@PostConstruct
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public void init() {
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connect();
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startHeartbeat();
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}
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/**
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* 销毁方法，在 Spring Bean 销毁前执行。
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* 关闭 WebSocket 连接、停止心跳定时器及相关的线程资源。
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*/
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@PreDestroy
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public void destroy() {
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if (webSocketClient != null && webSocketClient.isOpen()) {
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webSocketClient.close();
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}
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if (heartbeatExecutor != null) {
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heartbeatExecutor.shutdownNow();
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}
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if (pongTimeoutFuture != null) {
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pongTimeoutFuture.cancel(true);
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}
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sharedExecutor.shutdownNow();
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}
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/**
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* 建立与 OKX WebSocket 服务器的连接。
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* 设置回调函数以监听连接打开、接收消息、关闭和错误事件。
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*/
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private void connect() {
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try {
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URI uri = new URI(WS_URL);
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webSocketClient = new WebSocketClient(uri) {
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@Override
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public void onOpen(ServerHandshake handshake) {
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log.info("OKX New Price WebSocket连接成功");
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resetHeartbeatTimer();
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subscribeChannels();
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}
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@Override
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public void onMessage(String message) {
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lastMessageTime.set(System.currentTimeMillis());
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handleWebSocketMessage(message);
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resetHeartbeatTimer();
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}
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@Override
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public void onClose(int code, String reason, boolean remote) {
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log.warn("OKX New Price WebSocket连接关闭: code={}, reason={}", code, reason);
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cancelPongTimeout();
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sharedExecutor.execute(() -> {
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try {
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reconnectWithBackoff();
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} catch (InterruptedException ignored) {
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Thread.currentThread().interrupt();
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} catch (Exception e) {
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log.error("重连失败", e);
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}
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});
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}
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@Override
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public void onError(Exception ex) {
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log.error("OKX New Price WebSocket发生错误", ex);
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}
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};
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webSocketClient.connect();
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} catch (URISyntaxException e) {
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log.error("WebSocket URI格式错误", e);
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}
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}
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/**
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* 订阅指定交易对的价格通道。
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* 构造订阅请求并发送给服务端。
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*/
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private void subscribeChannels() {
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JSONObject subscribeMsg = new JSONObject();
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subscribeMsg.put("op", "subscribe");
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JSONArray argsArray = new JSONArray();
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for (String instId : INST_IDS) {
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JSONObject arg = new JSONObject();
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arg.put("channel", CHANNEL);
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arg.put("instId", instId);
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argsArray.add(arg);
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}
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subscribeMsg.put("args", argsArray);
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webSocketClient.send(subscribeMsg.toJSONString());
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log.info("已发送价格订阅请求，订阅通道数: {}", argsArray.size());
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}
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/**
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* 处理从 WebSocket 收到的消息。
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* 包括订阅确认、错误响应、心跳响应以及实际的数据推送。
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*
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* @param message 来自 WebSocket 的原始字符串消息
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*/
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private void handleWebSocketMessage(String message) {
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try {
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JSONObject response = JSON.parseObject(message);
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String event = response.getString("event");
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if ("subscribe".equals(event)) {
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log.info("价格订阅成功: {}", response.getJSONObject("arg"));
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} else if ("error".equals(event)) {
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log.error("价格订阅错误: code={}, msg={}",
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response.getString("code"), response.getString("msg"));
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} else if ("pong".equals(event)) {
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log.debug("收到pong响应");
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cancelPongTimeout();
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} else {
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processPushData(response);
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}
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} catch (Exception e) {
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log.error("处理WebSocket消息失败: {}", message, e);
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}
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}
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/**
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* 解析并处理价格推送数据。
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* 将最新的标记价格存入 Redis 并触发后续业务逻辑比较处理。
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*
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* @param response 包含价格数据的 JSON 对象
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*/
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private void processPushData(JSONObject response) {
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try {
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JSONArray dataArray = response.getJSONArray("data");
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if (dataArray != null && !dataArray.isEmpty()) {
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for (int i = 0; i < dataArray.size(); i++) {
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try {
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JSONObject priceData = dataArray.getJSONObject(i);
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String instId = priceData.getString("instId");
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String markPx = priceData.getString("markPx");
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String ts = priceData.getString("ts");
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String redisKey = buildRedisKey(instId);
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redisUtils.set(redisKey, markPx);
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String symbol = CoinTypeConvert.okxConvert(instId);
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if (symbol != null) {
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redisUtils.set(CoinTypeConvert.convertToKey(symbol), markPx);
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websocketPriceService.comparePriceAsc(symbol, markPx);
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websocketPriceService.comparePriceDesc(symbol, markPx);
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}
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log.debug("更新最新价格: {} = {}, 时间: {}", redisKey, markPx, ts);
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} catch (Exception innerEx) {
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log.warn("处理单条价格数据失败", innerEx);
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}
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}
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}
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} catch (Exception e) {
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log.error("处理价格推送数据失败", e);
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}
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}
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/**
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* 构建 Redis Key
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*/
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private String buildRedisKey(String instId) {
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return "PRICE_" + instId.replace("-", "");
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}
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/**
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* 启动心跳检测任务。
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* 使用 ScheduledExecutorService 定期检查是否需要发送 ping 请求来维持连接。
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*/
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private void startHeartbeat() {
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if (heartbeatExecutor != null) {
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heartbeatExecutor.shutdownNow();
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}
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heartbeatExecutor = Executors.newSingleThreadScheduledExecutor(r -> {
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Thread t = new Thread(r, "okx-newprice-heartbeat");
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t.setDaemon(true);
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return t;
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});
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heartbeatExecutor.scheduleWithFixedDelay(this::checkHeartbeatTimeout, 25, 25, TimeUnit.SECONDS);
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}
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/**
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* 重置心跳计时器。
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* 当收到新消息或发送 ping 后取消当前超时任务并重新安排下一次超时检查。
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*/
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private synchronized void resetHeartbeatTimer() {
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cancelPongTimeout();
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if (heartbeatExecutor != null) {
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pongTimeoutFuture = heartbeatExecutor.schedule(this::checkHeartbeatTimeout,
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HEARTBEAT_TIMEOUT, TimeUnit.SECONDS);
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}
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}
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/**
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* 检查心跳超时情况。
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* 若长时间未收到任何消息则主动发送 ping 请求保持连接活跃。
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*/
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private void checkHeartbeatTimeout() {
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long currentTime = System.currentTimeMillis();
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long lastTime = lastMessageTime.get();
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if (currentTime - lastTime >= HEARTBEAT_TIMEOUT * 1000L) {
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sendPing();
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}
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}
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/**
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* 发送 ping 请求至 WebSocket 服务端。
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* 用于维持长连接有效性。
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*/
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private void sendPing() {
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try {
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if (webSocketClient != null && webSocketClient.isOpen()) {
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JSONObject ping = new JSONObject();
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ping.put("op", "ping");
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webSocketClient.send(ping.toJSONString());
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log.debug("发送ping请求");
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}
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} catch (Exception e) {
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log.warn("发送ping失败", e);
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}
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}
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/**
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* 取消当前的心跳超时任务。
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* 在收到 pong 或其他有效消息时调用此方法避免不必要的断开重连。
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*/
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private synchronized void cancelPongTimeout() {
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if (pongTimeoutFuture != null && !pongTimeoutFuture.isDone()) {
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pongTimeoutFuture.cancel(true);
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}
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}
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/**
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* 执行 WebSocket 重连操作。
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* 在连接意外中断后尝试重新建立连接。
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*/
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private void reconnectWithBackoff() throws InterruptedException {
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int attempt = 0;
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int maxAttempts = 5;
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long delayMs = 5000;
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while (attempt < maxAttempts) {
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try {
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Thread.sleep(delayMs);
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connect();
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return;
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} catch (Exception e) {
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log.warn("第{}次重连失败", attempt + 1, e);
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delayMs *= 2;
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attempt++;
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}
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}
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log.error("超过最大重试次数({})仍未连接成功", maxAttempts);
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}
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}
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