张世豪
昨天 43bd281a47eeac52e649ef79ea25c0dd4d61af7d
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package chushihua;
 
import chuankou.Sendmsg;
import home.MachineConfig;
import publicway.QueryData;
 
/**
 * 轮询查询类
 * 用于定时向所有卡槽发送查询指令
 * 支持暂停和恢复功能,检查串口连接状态
 */
public class lunxun {
    private static volatile boolean isRunning = false;
    private static volatile boolean isPaused = false;
    private static Thread pollingThread;
    private static int pollingInterval = 100; // 默认轮询间隔
    
    // 卡槽相关常量
    private static final int MIN_SLOT = 1;
    private static final int MAX_SLOT = 60;
    
    // 串口连接检查相关
    private static final int SERIAL_CHECK_INTERVAL = 5000; // 5秒检查一次串口连接
    private static long lastSerialCheckTime = 0;
    private static boolean serialConnected = false;
    
    /**
     * 检查串口连接状态
     * @return true-串口已连接, false-串口未连接
     */
    public static boolean checkSerialConnection() {
        // 避免频繁检查,每5秒检查一次
        long currentTime = System.currentTimeMillis();
        if (currentTime - lastSerialCheckTime < SERIAL_CHECK_INTERVAL) {
            return serialConnected;
        }
        
        lastSerialCheckTime = currentTime;
        
        try {
            // 简化检查:直接检查Sendmsg的串口状态,而不是发送测试指令
            boolean result = Sendmsg.isPortOpen();
            
            if (result) {
                System.out.println("串口连接正常");
                serialConnected = true;
            } else {
                System.err.println("串口连接失败 - 串口未打开");
                serialConnected = false;
            }
        } catch (Exception e) {
            System.err.println("串口连接检查异常: " + e.getMessage());
            serialConnected = false;
        }
        
        return serialConnected;
    }
    
    /**
     * 启动轮询查询
     * @return true-启动成功, false-启动失败
     */
    public static boolean startPolling() {
        if (isRunning) {
            System.out.println("轮询查询已经在运行中");
            return true;
        }
        
        // 启动前严格检查串口连接
        if (!checkSerialConnection()) {
            System.err.println("串口未连接,无法启动轮询查询");
            return false;
        }
        
        // 从配置中获取轮询间隔
        loadPollingIntervalFromConfig();
        
        isRunning = true;
        isPaused = false;
        
        try {
            pollingThread = new Thread(new PollingTask(), "CardSlot-Polling-Thread");
            pollingThread.setDaemon(true);
            pollingThread.start();
            
            System.out.println("轮询查询已启动,间隔: " + pollingInterval + "ms");
            return true;
        } catch (Exception e) {
            System.err.println("启动轮询查询线程时发生异常: " + e.getMessage());
            isRunning = false;
            return false;
        }
    }
    
    /**
     * 停止轮询查询
     * @return true-停止成功, false-停止失败
     */
    public static boolean stopPolling() {
        if (!isRunning) {
            System.out.println("轮询查询未在运行");
            return false;
        }
        
        isRunning = false;
        isPaused = false;
        if (pollingThread != null) {
            pollingThread.interrupt();
            try {
                pollingThread.join(1000); // 等待线程结束,最多1秒
            } catch (InterruptedException e) {
                System.err.println("停止轮询查询时被中断: " + e.getMessage());
                Thread.currentThread().interrupt();
            }
            pollingThread = null;
        }
        
        System.out.println("轮询查询已停止");
        return true;
    }
    
    /**
     * 暂停轮询查询
     * @return true-暂停成功, false-暂停失败
     */
    public static boolean pausePolling() {
        if (!isRunning) {
            System.out.println("轮询查询未在运行,无法暂停");
            return false;
        }
        
        if (isPaused) {
            System.out.println("轮询查询已经处于暂停状态");
            return false;
        }
        
        isPaused = true;
        System.out.println("轮询查询已暂停");
        return true;
    }
    
    /**
     * 恢复轮询查询
     * @return true-恢复成功, false-恢复失败
     */
    public static boolean resumePolling() {
        if (!isRunning) {
            System.out.println("轮询查询未在运行,无法恢复");
            return false;
        }
        
        if (!isPaused) {
            System.out.println("轮询查询未处于暂停状态");
            return false;
        }
        
        // 恢复前检查串口连接
        if (!checkSerialConnection()) {
            System.err.println("串口未连接,无法恢复轮询查询");
            return false;
        }
        
        isPaused = false;
        synchronized (lunxun.class) {
            lunxun.class.notifyAll(); // 唤醒等待的线程
        }
        System.out.println("轮询查询已恢复");
        return true;
    }
    
    /**
     * 检查轮询状态
     * @return true-正在运行, false-已停止
     */
    public static boolean isPolling() {
        return isRunning;
    }
    
    /**
     * 检查是否暂停
     * @return true-已暂停, false-未暂停
     */
    public static boolean isPaused() {
        return isPaused;
    }
    
    /**
     * 检查串口连接状态
     * @return true-串口已连接, false-串口未连接
     */
    public static boolean isSerialConnected() {
        return serialConnected;
    }
    
    /**
     * 设置轮询间隔
     * @param interval 轮询间隔(毫秒)
     */
    public static void setPollingInterval(int interval) {
        if (interval < 10) {
            System.err.println("轮询间隔不能小于10ms");
            return;
        }
        
        pollingInterval = interval;
        System.out.println("轮询间隔已设置为: " + interval + "ms");
        
        // 如果正在运行,重新启动以应用新的间隔
        if (isRunning) {
            restartPolling();
        }
    }
    
    /**
     * 获取当前轮询间隔
     * @return 轮询间隔(毫秒)
     */
    public static int getPollingInterval() {
        return pollingInterval;
    }
    
    /**
     * 重新启动轮询查询
     * @return true-重启成功, false-重启失败
     */
    public static boolean restartPolling() {
        stopPolling();
        
        // 等待一小段时间确保线程完全停止
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
        
        return startPolling();
    }
    
    /**
     * 从配置中加载轮询间隔
     */
    private static void loadPollingIntervalFromConfig() {
        try {
            Chushihua configSystem = Chushihua.getInstance();
            if (configSystem.isInitialized()) {
                MachineConfig machineConfig = configSystem.getMachineConfig();
                pollingInterval = machineConfig.getPollingInterval();
                System.out.println("从配置加载轮询间隔: " + pollingInterval + "ms");
            } else {
                System.out.println("配置系统未初始化,使用默认轮询间隔: " + pollingInterval + "ms");
            }
        } catch (Exception e) {
            System.err.println("加载轮询间隔配置失败: " + e.getMessage());
            System.out.println("使用默认轮询间隔: " + pollingInterval + "ms");
        }
    }
    
    /**
     * 轮询任务内部类
     * 优化内存使用:避免在循环中创建新对象
     */
    private static class PollingTask implements Runnable {
        private int currentSlot = MIN_SLOT;
        
        @Override
        public void run() {
            System.out.println("轮询查询线程开始运行");
            
            while (isRunning && !Thread.currentThread().isInterrupted()) {
                try {
                    // 检查是否暂停
                    if (isPaused) {
                        synchronized (lunxun.class) {
                            while (isPaused && isRunning) {
                                lunxun.class.wait(1000); // 等待1秒或直到被唤醒
                            }
                        }
                        continue;
                    }
                    
                    // 定期检查串口连接状态(每10次循环检查一次)
                    if (currentSlot % 10 == 0 && !checkSerialConnection()) {
                        System.err.println("串口连接断开,暂停轮询");
                        pausePolling();
                        continue;
                    }
                    
                    // 发送当前卡槽的查询指令
                    sendQueryToSlot(currentSlot);
                    
                    // 移动到下一个卡槽
                    currentSlot++;
                    if (currentSlot > MAX_SLOT) {
                        currentSlot = MIN_SLOT; // 循环回到第一个卡槽
                        
                        // 在循环回到第一个卡槽后,等待间隔时间
                        // 避免连续发送两个相邻周期的第一个卡槽
                        Thread.sleep(pollingInterval);
                        continue; // 跳过本次循环的后续等待
                    }
                    
                    // 等待指定的间隔时间
                    Thread.sleep(pollingInterval);
                    
                } catch (InterruptedException e) {
                    System.out.println("轮询查询线程被中断");
                    Thread.currentThread().interrupt();
                    break;
                } catch (Exception e) {
                    System.err.println("轮询查询过程中发生异常: " + e.getMessage());
                    
                    // 发生异常时等待一段时间再继续
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException ie) {
                        Thread.currentThread().interrupt();
                        break;
                    }
                }
            }
            
            System.out.println("轮询查询线程结束运行");
        }
        
        /**
         * 向指定卡槽发送查询指令
         * 优化:避免重复创建对象,使用局部变量
         */
        private void sendQueryToSlot(int slotNumber) {
            try {
                // 生成查询指令
                String queryCommand = QueryData.queryData(slotNumber);
                
                if (queryCommand != null && !queryCommand.trim().isEmpty()) {
                    // 发送到串口
                    boolean sendResult = Sendmsg.sendMessage(queryCommand);
                    
                    if (sendResult) {
                        // 只在调试时输出,避免频繁打印
                        if (slotNumber == 1 || slotNumber % 20 == 0) {
                            System.out.println("发送查询指令到卡槽 " + slotNumber);
                        }
                    } else {
                        System.err.println("发送查询指令到卡槽 " + slotNumber + " 失败");
                        // 发送失败可能是串口断开,更新连接状态
                        serialConnected = false;
                    }
                } else {
                    System.err.println("生成的查询指令为空,卡槽: " + slotNumber);
                }
                
            } catch (Exception e) {
                System.err.println("发送查询指令到卡槽 " + slotNumber + " 时发生异常: " + e.getMessage());
                // 发生异常时更新串口连接状态
                serialConnected = false;
            }
        }
    }
    
    /**
     * 立即向指定卡槽发送查询指令(不等待轮询)
     * @param slotNumber 卡槽编号 (1-60)
     * @return true-发送成功, false-发送失败
     */
    public static boolean sendImmediateQuery(int slotNumber) {
        if (slotNumber < MIN_SLOT || slotNumber > MAX_SLOT) {
            System.err.println("卡槽编号必须在" + MIN_SLOT + "-" + MAX_SLOT + "之间");
            return false;
        }
        
        // 检查串口连接
        if (!checkSerialConnection()) {
            System.err.println("串口未连接,无法发送查询指令");
            return false;
        }
        
        try {
            // 生成查询指令
            String queryCommand = QueryData.queryData(slotNumber);
            
            if (queryCommand != null && !queryCommand.trim().isEmpty()) {
                // 发送到串口
                boolean sendResult = Sendmsg.sendMessage(queryCommand);
                
                if (sendResult) {
                    System.out.println("立即查询成功 - 卡槽 " + slotNumber);
                    return true;
                } else {
                    System.err.println("立即查询失败 - 发送指令到卡槽 " + slotNumber + " 失败");
                    return false;
                }
            } else {
                System.err.println("立即查询失败 - 生成的查询指令为空,卡槽: " + slotNumber);
                return false;
            }
            
        } catch (Exception e) {
            System.err.println("立即查询卡槽 " + slotNumber + " 时发生异常: " + e.getMessage());
            return false;
        }
    }
    
    /**
     * 立即向所有卡槽发送查询指令(批量)
     * @return 成功发送的指令数量
     */
    public static int sendImmediateQueryToAll() {
        // 检查串口连接
        if (!checkSerialConnection()) {
            System.err.println("串口未连接,无法发送批量查询指令");
            return 0;
        }
        
        int successCount = 0;
        
        System.out.println("开始批量查询所有卡槽...");
        
        for (int slot = MIN_SLOT; slot <= MAX_SLOT; slot++) {
            if (sendImmediateQuery(slot)) {
                successCount++;
            }
            
            // 小间隔避免串口拥堵
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
                break;
            }
        }
        
        System.out.println("批量查询完成,成功发送: " + successCount + "/" + MAX_SLOT);
        return successCount;
    }
    
    /**
     * 手动设置串口连接状态(用于外部检测到串口状态变化时调用)
     * @param connected 串口连接状态
     */
    public static void setSerialConnected(boolean connected) {
        serialConnected = connected;
        lastSerialCheckTime = System.currentTimeMillis();
        
        if (connected) {
            System.out.println("串口连接状态已设置为: 已连接");
        } else {
            System.err.println("串口连接状态已设置为: 未连接");
            // 如果串口断开且轮询正在运行,自动暂停轮询
            if (isRunning && !isPaused) {
                pausePolling();
            }
        }
    }
    
    /**
     * 获取轮询状态信息
     * @return 状态信息字符串
     */
    public static String getPollingStatus() {
        String status;
        if (!isRunning) {
            status = "已停止";
        } else if (isPaused) {
            status = "已暂停";
        } else {
            status = "运行中";
        }
        
        String serialStatus = serialConnected ? "已连接" : "未连接";
        
        return String.format("轮询状态: %s, 串口: %s, 间隔: %dms, 卡槽范围: %d-%d", 
                           status, serialStatus, pollingInterval, MIN_SLOT, MAX_SLOT);
    }
    
    /**
     * 直接设置轮询暂停状态(供其他类调用)
     * @param paused true-暂停轮询, false-恢复轮询
     * @return true-设置成功, false-设置失败(如轮询未运行)
     */
    public static boolean setPollingPaused(boolean paused) {
        if (!isRunning) {
            System.out.println("轮询查询未在运行,无法设置暂停状态");
            return false;
        }
        
        if (paused) {
            // 请求暂停
            if (!isPaused) {
                isPaused = true;
                System.out.println("轮询查询已通过外部调用暂停");
                return true;
            } else {
                System.out.println("轮询查询已经处于暂停状态");
                return false;
            }
        } else {
            // 请求恢复
            if (isPaused) {
                // 恢复前检查串口连接
                if (!checkSerialConnection()) {
                    System.err.println("串口未连接,无法恢复轮询查询");
                    return false;
                }
                
                isPaused = false;
                synchronized (lunxun.class) {
                    lunxun.class.notifyAll(); // 唤醒等待的线程
                }
                System.out.println("轮询查询已通过外部调用恢复");
                return true;
            } else {
                System.out.println("轮询查询未处于暂停状态");
                return false;
            }
        }
    }
}