package com.xcong.excoin.modules.gateApi;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import com.xcong.excoin.modules.gateApi.wsHandler.GateChannelHandler;
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import com.xcong.excoin.modules.okxNewPrice.utils.SSLConfig;
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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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* Gate WebSocket 连接管理器。
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* 负责建立连接、心跳检测、重连，将频道逻辑委托给 {@link GateChannelHandler} 实现类。
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*
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* <h3>频道处理</h3>
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* 每个频道由独立的 Handler 类负责：订阅、取消订阅、消息解析。
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* 运行时将消息按 channel 字段路由到对应 Handler。
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*
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* @author Administrator
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*/
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@Slf4j
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public class GateKlineWebSocketClient {
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private static final String FUTURES_PING = "futures.ping";
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private static final String FUTURES_PONG = "futures.pong";
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private static final int HEARTBEAT_TIMEOUT = 10;
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private static final String WS_URL_MONIPAN = "wss://ws-testnet.gate.com/v4/ws/futures/usdt";
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private static final String WS_URL_SHIPAN = "wss://fx-ws.gateio.ws/v4/ws/usdt";
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private static final boolean isAccountType = false;
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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<GateChannelHandler> channelHandlers = new ArrayList<>();
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private final ExecutorService sharedExecutor = Executors.newCachedThreadPool(r -> {
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Thread t = new Thread(r, "gate-ws-worker");
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t.setDaemon(true);
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return t;
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});
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public GateKlineWebSocketClient() {
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}
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public void addChannelHandler(GateChannelHandler handler) {
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channelHandlers.add(handler);
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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("GateKlineWebSocketClient 已经初始化过，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("开始销毁GateKlineWebSocketClient");
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if (webSocketClient != null && webSocketClient.isOpen()) {
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for (GateChannelHandler 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("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("关闭WebSocket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("GateKlineWebSocketClient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("连接已在进行中，跳过重复连接请求");
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return;
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}
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try {
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SSLConfig.configureSSL();
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System.setProperty("https.protocols", "TLSv1.2,TLSv1.3");
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String WS_URL = isAccountType ? WS_URL_SHIPAN : WS_URL_MONIPAN;
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URI uri = new URI(WS_URL);
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if (webSocketClient != null) {
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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("关闭之前连接时被中断");
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}
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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("Gate WebSocket连接成功");
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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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for (GateChannelHandler 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.warn("应用正在关闭，忽略WebSocket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("Gate WebSocket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 {
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reconnectWithBackoff();
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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log.error("重连线程被中断", e);
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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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} else {
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log.warn("共享线程池已关闭，无法执行重连任务");
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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("Gate WebSocket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("WebSocket 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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JSONObject response = JSON.parseObject(message);
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String channel = response.getString("channel");
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String event = response.getString("event");
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if (FUTURES_PONG.equals(channel)) {
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log.debug("收到futures.pong响应");
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cancelPongTimeout();
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return;
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}
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if ("subscribe".equals(event)) {
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log.info("{} 频道订阅成功: {}", channel, response.getJSONObject("result"));
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return;
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}
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if ("unsubscribe".equals(event)) {
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log.info("{} 频道取消订阅成功", channel);
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return;
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}
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if ("error".equals(event)) {
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JSONObject error = response.getJSONObject("error");
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log.error("{} 频道错误: code={}, msg={}",
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channel,
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error != null ? error.getInteger("code") : "N/A",
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error != null ? error.getString("message") : response.getString("msg"));
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return;
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}
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if ("update".equals(event) || "all".equals(event)) {
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for (GateChannelHandler handler : channelHandlers) {
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if (handler.handleMessage(response)) {
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return;
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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WebSocket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()) {
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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, "gate-ws-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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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,
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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()) {
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return;
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}
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if (System.currentTimeMillis() - lastMessageTime.get() >= HEARTBEAT_TIMEOUT * 1000L) {
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sendPing();
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}
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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 pingMsg = new JSONObject();
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pingMsg.put("time", System.currentTimeMillis() / 1000);
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pingMsg.put("channel", FUTURES_PING);
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webSocketClient.send(pingMsg.toJSONString());
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log.debug("发送futures.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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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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private void reconnectWithBackoff() throws InterruptedException {
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int attempt = 0;
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int maxAttempts = 3;
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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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private void shutdownExecutorGracefully(ExecutorService executor) {
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if (executor == null || executor.isTerminated()) {
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return;
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}
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try {
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executor.shutdown();
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if (!executor.awaitTermination(5, TimeUnit.SECONDS)) {
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executor.shutdownNow();
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}
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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executor.shutdownNow();
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}
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}
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}
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