From 2e98b20bea4463e4465e3c19059d0744a09aec06 Mon Sep 17 00:00:00 2001
From: zhongrj <646384940@qq.com>
Date: Tue, 27 Jun 2023 14:34:41 +0800
Subject: [PATCH] gb28181版本升级-补充
---
src/main/java/com/genersoft/iot/vmp/conf/DynamicTask.java | 138 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 138 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/genersoft/iot/vmp/conf/DynamicTask.java b/src/main/java/com/genersoft/iot/vmp/conf/DynamicTask.java
new file mode 100644
index 0000000..b2c2358
--- /dev/null
+++ b/src/main/java/com/genersoft/iot/vmp/conf/DynamicTask.java
@@ -0,0 +1,138 @@
+package com.genersoft.iot.vmp.conf;
+
+import com.genersoft.iot.vmp.gb28181.task.ISubscribeTask;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+import java.time.Instant;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 动态定时任务
+ * @author lin
+ */
+@Component
+public class DynamicTask {
+
+ private final Logger logger = LoggerFactory.getLogger(DynamicTask.class);
+
+ private ThreadPoolTaskScheduler threadPoolTaskScheduler;
+
+ private final Map<String, ScheduledFuture<?>> futureMap = new ConcurrentHashMap<>();
+ private final Map<String, Runnable> runnableMap = new ConcurrentHashMap<>();
+
+ @PostConstruct
+ public void DynamicTask() {
+ threadPoolTaskScheduler = new ThreadPoolTaskScheduler();
+ threadPoolTaskScheduler.setPoolSize(300);
+ threadPoolTaskScheduler.setWaitForTasksToCompleteOnShutdown(true);
+ threadPoolTaskScheduler.setAwaitTerminationSeconds(10);
+ threadPoolTaskScheduler.initialize();
+ }
+
+ /**
+ * 循环执行的任务
+ * @param key 任务ID
+ * @param task 任务
+ * @param cycleForCatalog 间隔 毫秒
+ * @return
+ */
+ public void startCron(String key, Runnable task, int cycleForCatalog) {
+ ScheduledFuture<?> future = futureMap.get(key);
+ if (future != null) {
+ if (future.isCancelled()) {
+ logger.debug("任务【{}】已存在但是关闭状态！！！", key);
+ } else {
+ logger.debug("任务【{}】已存在且已启动！！！", key);
+ return;
+ }
+ }
+ // scheduleWithFixedDelay 必须等待上一个任务结束才开始计时period， cycleForCatalog表示执行的间隔
+ future = threadPoolTaskScheduler.scheduleAtFixedRate(task, cycleForCatalog);
+ if (future != null){
+ futureMap.put(key, future);
+ runnableMap.put(key, task);
+ logger.debug("任务【{}】启动成功！！！", key);
+ }else {
+ logger.debug("任务【{}】启动失败！！！", key);
+ }
+ }
+
+ /**
+ * 延时任务
+ * @param key 任务ID
+ * @param task 任务
+ * @param delay 延时 /毫秒
+ * @return
+ */
+ public void startDelay(String key, Runnable task, int delay) {
+ stop(key);
+
+ // 获取执行的时刻
+ Instant startInstant = Instant.now().plusMillis(TimeUnit.MILLISECONDS.toMillis(delay));
+
+ ScheduledFuture future = futureMap.get(key);
+ if (future != null) {
+ if (future.isCancelled()) {
+ logger.debug("任务【{}】已存在但是关闭状态！！！", key);
+ } else {
+ logger.debug("任务【{}】已存在且已启动！！！", key);
+ return;
+ }
+ }
+ // scheduleWithFixedDelay 必须等待上一个任务结束才开始计时period， cycleForCatalog表示执行的间隔
+ future = threadPoolTaskScheduler.schedule(task, startInstant);
+ if (future != null){
+ futureMap.put(key, future);
+ runnableMap.put(key, task);
+ logger.debug("任务【{}】启动成功！！！", key);
+ }else {
+ logger.debug("任务【{}】启动失败！！！", key);
+ }
+ }
+
+ public void stop(String key) {
+ if (futureMap.get(key) != null && !futureMap.get(key).isCancelled()) {
+ futureMap.get(key).cancel(false);
+ futureMap.remove(key);
+ runnableMap.remove(key);
+ }
+ }
+
+ public boolean contains(String key) {
+ return futureMap.get(key) != null;
+ }
+
+ public Set<String> getAllKeys() {
+ return futureMap.keySet();
+ }
+
+ public Runnable get(String key) {
+ return runnableMap.get(key);
+ }
+
+ /**
+ * 每五分钟检查失效的任务，并移除
+ */
+ @Scheduled(cron="0 0/5 * * * ?")
+ public void execute(){
+ if (futureMap.size() > 0) {
+ for (String key : futureMap.keySet()) {
+ if (futureMap.get(key).isDone()) {
+ futureMap.remove(key);
+ runnableMap.remove(key);
+ }
+ }
+ }
+ }
+}
--
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