package com.mzl.flower.schedule;
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import com.mzl.flower.entity.film.AiContentTaskConfig;
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import com.mzl.flower.mapper.film.AiContentTaskConfigMapper;
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import com.mzl.flower.service.film.AiContentTaskConfigService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
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import org.springframework.scheduling.support.CronTrigger;
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import org.springframework.stereotype.Component;
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import javax.annotation.PostConstruct;
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import javax.annotation.Resource;
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import java.util.*;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ScheduledFuture;
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import java.util.stream.Collectors;
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@Component
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public class DynamicTaskManager {
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private final Map<Long, ScheduledFuture<?>> scheduledTasks = new ConcurrentHashMap<>();
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@Autowired
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private ThreadPoolTaskScheduler taskScheduler;
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@Resource
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private AiContentTaskConfigMapper aiContentTaskConfigMapper;
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@Autowired
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private TaskExecutor taskExecutor;
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@PostConstruct
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public void init() {
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refreshTasks();
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}
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public synchronized void refreshTasks() {
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List<AiContentTaskConfig> latestConfigs = aiContentTaskConfigMapper.getAiContentTaskConfigAll();
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Set<Long> latestIds = latestConfigs.stream()
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.map(AiContentTaskConfig::getId)
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.collect(Collectors.toSet());
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// 移除无效任务
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new HashSet<>(scheduledTasks.keySet()).forEach(id -> {
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if (!latestIds.contains(id)) {
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cancelAndRemoveTask(id);
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}
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});
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// 更新/新增任务
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latestConfigs.forEach(config -> {
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ScheduledFuture<?> existingTask = scheduledTasks.get(config.getId());
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if (existingTask == null) {
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registerNewTask(config);
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} else if (isConfigModified(config)) {
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cancelAndRemoveTask(config.getId());
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registerNewTask(config);
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}
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});
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}
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private void registerNewTask(AiContentTaskConfig config) {
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ScheduledFuture<?> future = taskScheduler.schedule(
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() -> taskExecutor.executeTask(config),
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new CronTrigger(config.getCron())
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);
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scheduledTasks.put(config.getId(), future);
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}
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private void cancelAndRemoveTask(Long taskId) {
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ScheduledFuture<?> task = scheduledTasks.get(taskId);
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if (task != null) {
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task.cancel(false); // 不中断正在执行的任务
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scheduledTasks.remove(taskId);
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}
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}
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private boolean isConfigModified(AiContentTaskConfig newConfig) {
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// 实现配置变更检查逻辑（比较字段或版本号）
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return true; // 简化示例
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}
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}
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