使用任务执行程序线程运行Spring计划任务 [英] Getting Spring scheduled tasks to run with the task executor thread

问题描述

后台：我在我的Websphere 7应用程序中使用Spring 3.0.x来获取CommonJ WorkManager和TimerManager。我使用这些在我部署的应用程序中以特定间隔执行任意任务。

Background: I use Spring 3.0.x in my Websphere 7 applications to grab the CommonJ WorkManager and TimerManager. I use these to do arbitrary tasks at certain intervals in my deployed applications.

问题：

我刚刚了解到在调度程序中设置bean时如下：

I just learned that when setting a bean in the scheduler like so:

<bean id="threadTest" class="test.ThreadTester" />

<task:scheduled-tasks scheduler="myTimerExecutor">
    <task:scheduled ref="threadTest" method="execute" fixed-delay="300000" />
</task:scheduled-tasks>

在Websphere中，它将运行 ThreadTester 直接在TimerManager线程池中的类。此线程池具有比WorkManager线程池高得多的优先级（和更少的线程）。我希望线程与WorkManager一起运行，而不是使用适当的优先级并使用为线程设置的适当资源。

In Websphere, it will run the ThreadTester class directly in the TimerManager thread pool. This thread pool has a much higher priority (and fewer threads) than the WorkManager thread pool. I want the thread to run with the WorkManager instead to be at the proper priority and use the proper resources set up for threads.

作为替代方案，不要设置bean在上面的调度程序中，我可以在 ThreadTester 类中使用Spring @Scheduled 注释，如下所示：

As an alternative, instead of setting the bean in the scheduler like above, I can use the Spring @Scheduled annotation in the ThreadTester class like so:

@Scheduled(fixedDelay = 300000)
public void execute() {
    ...
}

问题：

使用 @Scheduled 注释是否使计划的类在TimerManager线程池或WorkManager线程池中运行？

Does using the @Scheduled annotation make the scheduled class run in the TimerManager thread pool or the WorkManager thread pool?

如果它使用WorkManager运行，那就太好了！这解决了我的问题。但是，如果它使用TimerManager直接执行类，那么我想我必须编写一些包装器来正确调用WorkManager。

If it runs using the WorkManager, then great! That solves my problem. However, if it is using the TimerManager to directly execute the class, then I guess I'll have to write some wrapper to correctly call the WorkManager.

感谢您的帮助！

编辑：这里我介绍了如何使用Websphere 7 commonj实现设置调度程序和执行程序：

Here I include how I set up the scheduler and executor with the Websphere 7 commonj implementations:

<bean id="myTaskExecutor" class="org.springframework.scheduling.commonj.WorkManagerTaskExecutor"> 
    <property name="workManagerName" value="wm/default" />
    <property name="resourceRef" value="true"/>
</bean>

<bean id="myTaskScheduler" class="org.springframework.scheduling.commonj.TimerManagerTaskScheduler"> 
    <property name="timerManagerName" value="tm/default" />
    <property name="resourceRef" value="true" />
    <property name="shared" value="false" />
</bean>

<task:annotation-driven executor="myTaskExecutor" scheduler="myTaskScheduler" /> 

推荐答案

嗯，我发现是的，确实， @Scheduled bean在Websphere 7上的TimerManager线程池中运行。

Well, I found out that yes, indeed, @Scheduled beans are run within the TimerManager thread pool on Websphere 7.

我所要做的就是吐出堆栈线程的跟踪，以查看调用它的层次结构。

All I had to do was spit out the stack trace of the thread to see the hierarchy in which it was called.

for(StackTraceElement element: Thread.currentThread().getStackTrace()) {
    logger.debug(element.toString());
}

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