DynamicTask.java
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package com.genersoft.iot.vmp.conf;
import com.genersoft.iot.vmp.gb28181.task.ISubscribeTask;
import com.genersoft.iot.vmp.gb28181.transmit.event.request.impl.message.response.cmd.CatalogResponseMessageHandler;
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.concurrent.ThreadPoolTaskScheduler;
import org.springframework.stereotype.Component;
import java.util.Date;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ScheduledFuture;
/**
* 动态定时任务
*/
@Component
public class DynamicTask {
private Logger logger = LoggerFactory.getLogger(DynamicTask.class);
@Autowired
private ThreadPoolTaskScheduler threadPoolTaskScheduler;
private Map<String, ScheduledFuture<?>> futureMap = new ConcurrentHashMap<>();
private Map<String, Runnable> runnableMap = new ConcurrentHashMap<>();
@Bean
public ThreadPoolTaskScheduler threadPoolTaskScheduler() {
ThreadPoolTaskScheduler schedulerPool = new ThreadPoolTaskScheduler();
schedulerPool.setPoolSize(300);
schedulerPool.setWaitForTasksToCompleteOnShutdown(true);
schedulerPool.setAwaitTerminationSeconds(10);
return schedulerPool;
}
/**
* 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);
Date starTime = new Date(System.currentTimeMillis() + 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, starTime);
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(true);
Runnable runnable = runnableMap.get(key);
if (runnable instanceof ISubscribeTask) {
ISubscribeTask subscribeTask = (ISubscribeTask) runnable;
subscribeTask.stop();
}
}
}
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);
}
}