package com.linghu.timeTask;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
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import com.linghu.controller.CollectController;
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import com.linghu.model.dto.TaskResultResponse;
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import com.linghu.model.dto.TaskStatusResponse;
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import com.linghu.model.entity.KeywordTask;
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import com.linghu.model.entity.Question;
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import com.linghu.service.KeywordTaskService;
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import com.linghu.service.QuestionService;
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import lombok.extern.slf4j.Slf4j;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.scheduling.annotation.Scheduled;
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import org.springframework.stereotype.Component;
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import org.springframework.web.reactive.function.client.WebClient;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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import reactor.core.scheduler.Schedulers;
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import javax.annotation.PostConstruct;
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import javax.annotation.PreDestroy;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.List;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ScheduledExecutorService;
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import java.util.concurrent.ScheduledFuture;
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import java.util.concurrent.TimeUnit;
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@Component
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@Slf4j
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public class ScheduledTasks {
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private static final DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("HH:mm:ss");
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@Autowired
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private KeywordTaskService keywordTaskService;
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@Autowired
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private CollectController collectController;
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@Autowired
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private WebClient webClient; // 假设已配置WebClient
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@Autowired
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private QuestionService questionService;
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private ScheduledFuture<?> scheduledTask; // 定时任务引用
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// 健康检查专用调度器（单线程足够）
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private final ScheduledExecutorService healthCheckScheduler = Executors.newSingleThreadScheduledExecutor();
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// 任务处理专用调度器（可根据任务量调整线程数）
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private final ScheduledExecutorService taskScheduler = Executors.newScheduledThreadPool(2); // 2 个线程
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private volatile boolean isHealthy = true; // 健康状态标识
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@PostConstruct
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public void init() {
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// 启动健康检查定时任务，每10分钟执行一次
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healthCheckScheduler.scheduleAtFixedRate(this::checkHealth, 0, 10, TimeUnit.MINUTES);
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// 初始健康时，主动启动任务（如果需要应用启动就立即执行任务）
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if (isHealthy) {
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startTaskProcessing();
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}
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}
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/**
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* 健康检查方法，调用第三方服务健康检查接口
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*/
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private void checkHealth() {
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log.info("开始执行健康检查...");
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collectController.checkThirdPartyHealth()
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.subscribe(
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response -> {
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boolean previousHealthStatus = isHealthy;
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isHealthy = "healthy".equalsIgnoreCase(response.getStatus());
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// 状态变化时记录日志并控制任务执行
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if (previousHealthStatus != isHealthy) {
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if (isHealthy) {
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log.info("健康检查通过，恢复任务处理");
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startTaskProcessing();
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} else {
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log.warn("健康检查失败，暂停任务处理");
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stopTaskProcessing();
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}
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}
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},
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error -> {
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log.error("健康检查请求失败: {}", error.getMessage());
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if (isHealthy) { // 仅在健康状态变化时记录并停止任务
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isHealthy = false;
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log.warn("因健康检查请求失败，暂停任务处理");
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stopTaskProcessing();
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}
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}
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);
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}
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/**
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* 启动任务处理定时执行
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*/
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private synchronized void startTaskProcessing() {
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if (scheduledTask == null || scheduledTask.isCancelled()) {
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scheduledTask = taskScheduler.scheduleAtFixedRate(
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this::executeTaskProcessing,
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0,
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10,
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TimeUnit.SECONDS
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);
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System.out.println("nima");
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}
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}
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/**
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* 停止任务处理定时执行
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*/
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private synchronized void stopTaskProcessing() {
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if (scheduledTask != null && !scheduledTask.isCancelled()) {
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scheduledTask.cancel(false);
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}
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}
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@PreDestroy
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public void destroy() {
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// 关闭健康检查调度器
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healthCheckScheduler.shutdown();
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try {
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if (!healthCheckScheduler.awaitTermination(5, TimeUnit.SECONDS)) {
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healthCheckScheduler.shutdownNow();
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}
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} catch (InterruptedException e) {
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healthCheckScheduler.shutdownNow();
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}
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// 关闭任务处理调度器
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taskScheduler.shutdown();
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try {
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if (!taskScheduler.awaitTermination(5, TimeUnit.SECONDS)) {
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taskScheduler.shutdownNow();
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}
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} catch (InterruptedException e) {
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taskScheduler.shutdownNow();
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}
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}
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/**
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* 实际的任务处理方法，替代原@Scheduled注解方法
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*/
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public void executeTaskProcessing() {
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if (!isHealthy) {
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log.debug("系统不健康，跳过任务处理");
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return;
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}
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// 查询所有状态为pending的任务
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LambdaQueryWrapper<KeywordTask> queryWrapper = new LambdaQueryWrapper<>();
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queryWrapper.eq(KeywordTask::getStatus, "pending");
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keywordTaskService.list(queryWrapper)
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.stream()
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.filter(task -> task.getTask_id() != null)
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.forEach(task -> processTaskStatus(task)
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.subscribeOn(Schedulers.boundedElastic())
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.subscribe(
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updatedTask -> log.info("任务状态已更新: {}", updatedTask.getTask_id()),
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error -> log.error("处理任务 {} 时发生错误: {}", task.getTask_id(), error.getMessage())
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)
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);
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}
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private Mono<KeywordTask> processTaskStatus(KeywordTask task) {
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return collectController.getTaskStatus(task.getTask_id())
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.flatMap(statusResponse -> {
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if ("completed".equalsIgnoreCase(statusResponse.getStatus())) {
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log.info("任务 {} 已完成，获取结果", task.getTask_id());
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return collectController.getTaskResult(task.getTask_id())
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.doOnSuccess(result -> log.info("获取任务 {} 结果成功", task.getTask_id()))
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.thenReturn(task)
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.map(t -> {
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t.setStatus("completed");
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return t;
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});
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} else if (!"submitted".equalsIgnoreCase(statusResponse.getStatus())
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&& !"running".equalsIgnoreCase(statusResponse.getStatus())
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&& !"Error".equalsIgnoreCase(statusResponse.getStatus())) {
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task.setStatus("false");
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return Mono.just(task);
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}else if ( "running".equalsIgnoreCase(statusResponse.getStatus())) {
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//更新每个提问词的状态
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return updateQuestionStatus(task, statusResponse); // 抽取为独立方法
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}else if("ERROR".equalsIgnoreCase(statusResponse.getStatus())&&"任务不存在".equalsIgnoreCase(statusResponse.getMessage())){
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task.setStatus("nonentity");
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return Mono.just(task);
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}
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else {
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// 任务仍在进行中，不更新状态
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return Mono.empty();
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}
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})
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.switchIfEmpty(Mono.just(task)) // 如果状态检查返回empty，保持原有任务
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.flatMap(t -> {
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if (!"pending".equalsIgnoreCase(t.getStatus())) {
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// 修改这里：将updateById的结果包装成Mono
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return Mono.fromSupplier(() -> keywordTaskService.updateById(t))
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.thenReturn(t);
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}
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return Mono.just(t);
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})
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.onErrorResume(e -> {
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log.error("处理任务 {} 状态时发生错误: {}", task.getTask_id(), e.getMessage());
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task.setStatus("error");
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// 将updateById的结果包装成Mono
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return Mono.fromSupplier(() -> keywordTaskService.updateById(task))
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.thenReturn(task);
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});
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}
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private Mono<KeywordTask> updateQuestionStatus(KeywordTask task, TaskStatusResponse statusResponse) {
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// 1. 先执行同步查询，获取 List<Question>
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List<Question> questions = questionService.lambdaQuery()
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.eq(Question::getKeyword_id, task.getKeyword_id())
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.list();
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// 2. 将 List 转为 Flux，再进行响应式处理
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return Flux.fromIterable(questions)
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.flatMap(question -> {
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// 更新逻辑...
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String newStatus = statusResponse.getQuestions_status().stream()
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.filter(qs -> qs.getQuestion().equals(question.getQuestion()))
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.findFirst()
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.map(qs -> qs.getStatus())
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.orElse(question.getStatus());
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question.setStatus(newStatus);
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return Mono.fromSupplier(() -> questionService.updateById(question))
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// 此时可以调用 doOnError 处理异常
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.doOnError(e -> log.error("更新 Question {} 失败: {}", question.getQuestion_id(), e.getMessage()))
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.onErrorReturn(false); // 异常时返回 false
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})
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.then(Mono.just(task));
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}
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}
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