Create and run thread on server tier

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Posted on by Community Member

Hi there

I'm trying to create and to run a separated thread inside a method running server side. However, there's no error at all, but the thread itself seems never called. If I try the same on client side, all is running fine. Can anybody assist me?

Here's what I've done:

static server void threadController()

{

ExecutePermission executePermission = new ExecutePermission();

str result;

Thread thread;

;

executePermission.assert();

thread = new Thread();

thread.run(classnum(WorkToDo), staticmethodstr(WorkToDo, threadEntry));

while (! thread.endDate())

{

sleep(1000);

}

result = conpeek(thread.getOutputParm(), 1);

info("Message from thread: " + result);

}

static server void threadEntry(Thread _t)

{

;

// do something (not implemented yet)

_t.setOutputParm(["All done"]);

}

When I switch all on client tier, the infolog in threadController will raise "All done", when I switch to server thread, the outParm has length of zero elements.

How to solve?

Thank you for your help.

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Dick Wenning 8,705 Moderator on at

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what is the aim of the parm return?

you could ask the status of the thread

0 = Thread never ran

1 = Thread is executing

2 = Thread has finished executing

perhaps first check status if is finished.

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Community Member on at

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The status is 2 - but still not executing the code inside threadEntry().

Any other Ideas?

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Martin Dráb 237,965 Most Valuable Professional on at

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The same code works for me regardless it's on client or server. How exactly do you switch it from client to server?

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Community Member on at

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Hi Martin

I run a job and the job calls WorkToDo::threadController();

threadController() and threadEntry(..) are both on class WorkToDo.

So you say, can read out the 'All done' from thread output?

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Martin Dráb 237,965 Most Valuable Professional on at

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threadController() is a server-bound method, so it runs on server regardless of where the calling code runs.

Yes, I do see "Message from thread: All done".

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Community Member on at

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Of course it's server bound, it shall run on server. Is your threadController() also server bound?

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Martin Dráb 237,965 Most Valuable Professional on at

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Well, I thought that answers to your last two questions are already in the sentence "The same code works for me regardless it's on client or server". I was serious. It works and I tested it both on client or server.

But what do YOU mean by "If I try the same on client side, all is running fine." if you now say that it's always on server? Please give us your full code.

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Community Member on at

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Sorry, think we talk at cross purposes, I try to explain:

When I remove the 'server' modifer from threadController(), then it works (cause then it's runnig on client).

But, the goal is to run this on server.

In the mean time I have now recompiled and restored ever concerned object and restarted the AOS. And my, my: It works also for me!

I have no clue, why it does not work earlier since it was exact the same code, may be a cache problem. But I'm happy now that it works!

Thank you very much

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HI Luigi,

I executed the same same code in batch using Runbase batch and SysOperation framework.

It works well in interactive mode, while it is not running in batch.

I get thread status 3 in batch.
Please let me know whether thread works in Batch or not?

If it works, do i need to change the code ?

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Martin Dráb 237,965 Most Valuable Professional on at

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aXdk, please notice that this thread was about AX 2009, while you're clearly talking about some newer version, because AX 2009 didn't contain the SysOperation framework. Your question may be related to CIL, which didn't exist in AX 2009 either, therefore such a discussion doesn't belong here. I suggest you create a new thread (with the right version tag) and explain your problem there. Don't forget to mention why you're trying to use the Thread class at all, instead of creating batch tasks as usual.

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