package com.xcong.excoin.modules.okxApi;
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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.modules.okxApi.wsHandler.OkxChannelHandler;
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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 java.net.URI;
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import java.net.URISyntaxException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.*;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicReference;
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/**
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* OKX WebSocket 连接管理器。
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*
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* <h3>职责</h3>
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* 负责 TCP 连接的建立、维持和恢复。频道逻辑（订阅/解析）全部委托给 {@link OkxChannelHandler} 实现类。
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*
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* <h3>生命周期</h3>
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* <pre>
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* init() → connect() → startHeartbeat()
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* destroy() → unsubscribe 所有 handler → closeBlocking() → shutdown 线程池
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* onClose() → reconnectWithBackoff() (最多 3 次，指数退避)
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* </pre>
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*
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* <h3>消息路由</h3>
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* <pre>
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* onMessage → handleMessage:
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* 1. pong → cancelPongTimeout
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* 2. login/subscribe/error → 日志
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* 3. order/batch-orders → 下单结果日志
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* 4. 数据推送 → 遍历 channelHandlers → handler.handleMessage(response)
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* </pre>
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*
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* <h3>心跳机制</h3>
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* 10 秒未收到任何消息 → 发送 ping；25 秒周期检查。
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*
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* @author Administrator
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*/
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@SuppressWarnings("ALL")
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@Slf4j
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public class OkxKlineWebSocketClient {
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private static final int HEARTBEAT_TIMEOUT = 10;
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private final String wsUrl;
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private final boolean isPrivate;
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private final String apiKey;
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private final String secretKey;
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private final String passphrase;
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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 final AtomicBoolean isConnected = new AtomicBoolean(false);
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private final AtomicBoolean isConnecting = new AtomicBoolean(false);
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private final AtomicBoolean isInitialized = new AtomicBoolean(false);
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private final List<OkxChannelHandler> channelHandlers = new ArrayList<>();
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public WebSocketClient getWebSocketClient() {
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return webSocketClient;
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}
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private final ExecutorService sharedExecutor = Executors.newCachedThreadPool(r -> {
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Thread t = new Thread(r, "okxApi-ws-worker");
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t.setDaemon(true);
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return t;
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});
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public OkxKlineWebSocketClient(String wsUrl) {
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this.wsUrl = wsUrl;
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this.isPrivate = false;
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this.apiKey = null;
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this.secretKey = null;
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this.passphrase = null;
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}
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public OkxKlineWebSocketClient(String wsUrl, String apiKey, String secretKey, String passphrase) {
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this.wsUrl = wsUrl;
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this.isPrivate = true;
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this.apiKey = apiKey;
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this.secretKey = secretKey;
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this.passphrase = passphrase;
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}
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public void addChannelHandler(OkxChannelHandler handler) {
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channelHandlers.add(handler);
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}
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private void websocketLogin() {
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try {
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String timestamp = String.valueOf(System.currentTimeMillis() / 1000);
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String sign = OkxWsUtil.signWebsocket(timestamp, secretKey);
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JSONArray argsArray = new JSONArray();
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JSONObject loginArgs = new JSONObject();
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loginArgs.put("apiKey", apiKey);
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loginArgs.put("passphrase", passphrase);
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loginArgs.put("timestamp", timestamp);
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loginArgs.put("sign", sign);
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argsArray.add(loginArgs);
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JSONObject login = OkxWsUtil.buildJsonObject(null, "login", argsArray);
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webSocketClient.send(login.toJSONString());
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log.info("[WS] 发送登录请求");
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} catch (Exception e) {
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log.error("[WS] 登录请求构建失败", e);
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}
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}
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public void init() {
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if (!isInitialized.compareAndSet(false, true)) {
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log.warn("[WS] 已初始化过，跳过重复初始化");
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return;
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}
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connect();
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startHeartbeat();
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}
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public void destroy() {
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log.info("[WS] 开始销毁...");
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if (webSocketClient != null && webSocketClient.isOpen()) {
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for (OkxChannelHandler handler : channelHandlers) {
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handler.unsubscribe(webSocketClient);
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}
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try {
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Thread.sleep(500);
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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log.warn("[WS] 取消订阅等待被中断");
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}
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}
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if (webSocketClient != null && webSocketClient.isOpen()) {
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try {
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webSocketClient.closeBlocking();
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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log.warn("[WS] 关闭连接时被中断");
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}
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}
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if (sharedExecutor != null && !sharedExecutor.isShutdown()) {
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sharedExecutor.shutdown();
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}
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shutdownExecutorGracefully(heartbeatExecutor);
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if (pongTimeoutFuture != null) {
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pongTimeoutFuture.cancel(true);
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}
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shutdownExecutorGracefully(sharedExecutor);
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log.info("[WS] 销毁完成");
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}
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private void connect() {
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if (isConnecting.get() || !isConnecting.compareAndSet(false, true)) {
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log.info("[WS] 连接进行中，跳过重复请求");
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return;
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}
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try {
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OkxWsUtil.configureSSL();
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System.setProperty("https.protocols", "TLSv1.2,TLSv1.3");
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URI uri = new URI(wsUrl);
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if (webSocketClient != null) {
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try { webSocketClient.closeBlocking(); } catch (InterruptedException e) { Thread.currentThread().interrupt(); }
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}
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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("[WS] 连接成功, isPrivate:{}", isPrivate);
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isConnected.set(true);
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isConnecting.set(false);
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if (sharedExecutor != null && !sharedExecutor.isShutdown()) {
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resetHeartbeatTimer();
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if (isPrivate) {
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websocketLogin();
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} else {
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for (OkxChannelHandler handler : channelHandlers) {
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handler.subscribe(webSocketClient);
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}
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sendPing();
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}
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} else {
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log.warn("[WS] 应用正在关闭，忽略连接成功回调");
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}
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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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handleMessage(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("[WS] 连接关闭, code:{}, reason:{}", code, reason);
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isConnected.set(false);
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isConnecting.set(false);
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cancelPongTimeout();
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if (sharedExecutor != null && !sharedExecutor.isShutdown() && !sharedExecutor.isTerminated()) {
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sharedExecutor.execute(() -> {
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try { reconnectWithBackoff(); } catch (InterruptedException e) { Thread.currentThread().interrupt(); } catch (Exception e) { log.error("[WS] 重连失败", e); }
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});
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} else {
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log.warn("[WS] 线程池已关闭，不执行重连");
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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("[WS] 发生错误", ex);
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isConnected.set(false);
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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("[WS] URI格式错误", e);
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isConnecting.set(false);
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}
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}
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private void handleMessage(String message) {
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try {
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if ("pong".equals(message)) {
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log.debug("[WS] 收到心跳响应");
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cancelPongTimeout();
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return;
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}
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JSONObject response = JSON.parseObject(message);
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String event = response.getString("event");
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if ("login".equals(event)) {
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String code = response.getString("code");
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if ("0".equals(code)) {
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log.info("[WS] WebSocket登录成功");
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for (OkxChannelHandler handler : channelHandlers) {
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handler.subscribe(webSocketClient);
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}
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sendPing();
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} else {
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log.error("[WS] WebSocket登录失败, code:{}, msg:{}", code, response.getString("msg"));
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}
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return;
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}
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if ("subscribe".equals(event)) {
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log.info("[WS] 订阅成功: {}", response.getJSONObject("arg"));
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return;
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}
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if ("unsubscribe".equals(event)) {
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log.info("[WS] 取消订阅成功: {}", response.getJSONObject("arg"));
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return;
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}
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if ("error".equals(event)) {
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log.error("[WS] 错误, code:{}, msg:{}",
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response.getString("code"), response.getString("msg"));
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return;
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}
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if ("channel-conn-count".equals(event)) {
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return;
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}
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String op = response.getString("op");
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if ("order".equals(op) || "batch-orders".equals(op)) {
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log.info("[WS] 收到下单推送结果: {}", JSON.toJSONString(response.get("data")));
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return;
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}
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for (OkxChannelHandler handler : channelHandlers) {
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if (handler.handleMessage(response)) return;
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}
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} catch (Exception e) {
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log.error("[WS] 处理消息失败: {}", message, e);
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}
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}
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private void startHeartbeat() {
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if (heartbeatExecutor != null && !heartbeatExecutor.isTerminated()) heartbeatExecutor.shutdownNow();
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heartbeatExecutor = Executors.newSingleThreadScheduledExecutor(r -> { Thread t = new Thread(r, "okxApi-heartbeat"); t.setDaemon(true); return t; });
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heartbeatExecutor.scheduleWithFixedDelay(this::checkHeartbeatTimeout, 25, 25, TimeUnit.SECONDS);
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}
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private synchronized void resetHeartbeatTimer() {
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cancelPongTimeout();
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if (heartbeatExecutor != null && !heartbeatExecutor.isShutdown()) {
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pongTimeoutFuture = heartbeatExecutor.schedule(this::checkHeartbeatTimeout, HEARTBEAT_TIMEOUT, TimeUnit.SECONDS);
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}
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}
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private void checkHeartbeatTimeout() {
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if (!isConnected.get()) return;
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if (System.currentTimeMillis() - lastMessageTime.get() >= HEARTBEAT_TIMEOUT * 1000L) sendPing();
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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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webSocketClient.send("ping");
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log.debug("[WS] 发送 ping 请求");
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}
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} catch (Exception e) { log.warn("[WS] 发送 ping 失败", e); }
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}
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private synchronized void cancelPongTimeout() {
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if (pongTimeoutFuture != null && !pongTimeoutFuture.isDone()) pongTimeoutFuture.cancel(true);
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}
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private void reconnectWithBackoff() throws InterruptedException {
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int attempt = 0, maxAttempts = 3;
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long delayMs = 5000;
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while (attempt < maxAttempts) {
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try { Thread.sleep(delayMs); connect(); return; } catch (Exception e) { log.warn("[WS] 第{}次重连失败", attempt + 1, e); delayMs *= 2; attempt++; }
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}
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log.error("[WS] 超过最大重试次数({})，放弃重连", maxAttempts);
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}
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private void shutdownExecutorGracefully(ExecutorService executor) {
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if (executor == null || executor.isTerminated()) return;
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try { executor.shutdown(); if (!executor.awaitTermination(5, TimeUnit.SECONDS)) executor.shutdownNow(); }
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catch (InterruptedException e) { Thread.currentThread().interrupt(); executor.shutdownNow(); }
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}
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}
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