topic Re: How to Using variable declared in tJava to next componet in Talend Studio

How to Using variable declared in tJava to next componet

Anonymous — Sat, 16 Nov 2024 02:23:00 GMT

I want to use variable declared in tJava, so I tried "tMap" and tSetGlobalVar.

But It doesn't work

I want to use location variable in tSystem

Thanks in advance

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 03:33:10 GMT

Hi
If you want to call tSystem for each iteration, link tjava to tSystem using a OnComponentOK connector.
tFileList--iterate--tJava--Oncomponentok--tSystem.

If you want to call tSystem after all iterations finishes, link tFileList to tSystem using OnsubjobOK connector.
tFileList--iterate--tJava
|Onsubjobok
tSystem.

To declare a global variable and put value, use this expression:
globalMap.put("key",value);

To get the value, use
(String)globalMap.get("key")
//for String type.

Hope it helps you.

Regards
Shong

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 03:56:08 GMT

Thanks for reply, but still doesn't work.

I set like your solution except "Iterate" between tFileList_1 and tJava becauseof Path difference

This Error massage

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 04:05:37 GMT

See the Qbicware.java 635 Line
"String dirName =((String)globalMap.get("tFileList_1_CURRENT_FILEPATH")).replace("\\", "/").substring(2);
System.out.println(dirName);
globalMap.put("dirName", dirName);
"
I think they can not call ther tFileList_CURRENT_FILEPATH..
is there another way to recognize it in tSystem?

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 04:11:38 GMT

From the error, I see it is NPE on tJava, it is a design issue, the connector should be iterate rather than onComponnetOK from tFileList to tJava.

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 04:47:41 GMT

First

I run this job in linux environment, (.sh file)

but there isn't "D:/FTPTest "(tFileList) things in linux.

Second

as you said.. "Iterate" things between tFileList and tJava could be a problem

but there's a issue if "Iterate" is real problem.

I tested both "Iterate" and "onComponentOK" and Path that I wanted appear when only use "ComponentOK"

ex)

use Iterate

"D:/FTPTest/NAVI"

use onComponentOK

"D:/FTPTest/NAVI/Barnum"

and I want to below path.. so I used onComponentOK.

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 06:51:38 GMT

If you want to iterate each file, you should use Iterate, it depends on your requirement. If you use onComponentOK, it only process the last file.

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 09:43:04 GMT

when I running .sh file on server, I want to check the log.

is it okay if I link each component to tWarn?

like this

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 09:58:37 GMT

yes, you can link the components to a tWarn and customize the log messages if needed.

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 10:13:25 GMT

Thanks...

Last question

workflow is looks fine but can't insert it.

please let us know if you know

Re: How to Using variable declared in tJava to next componet

Anonymous — Wed, 20 May 2020 10:16:37 GMT

please describe your issue with more information,what data you want to insert and where? any error?

Re: How to Using variable declared in tJava to next componet

Anonymous — Fri, 22 May 2020 01:28:08 GMT

Sorry, for my poor question.

and It was kind of mongoDB problem..I guess

Because when I create a new mongoDB environment, after that It worked.

Thanks again your reply.

Re: How to Using variable declared in tJava to next componet

Anonymous — Fri, 22 May 2020 01:36:56 GMT

great, thanks for your feedback!