Talend as part of another application

[Anonymous]

Hey I have been using talend a little and I want to use it as part of another Eclipse application. Pretty much I want to take a job and call it from another java program. I could use system to do this but, that is not very portable and I need my application to be portable. Is there any good way to use a talend job inside another java program?

[Anonymous]

Hello lotu
Thanks for your interesting in Talend.
You can not only call a Java program in a Talend job, but also call a Talend job in a Java program. You can simply follow the steps below:
1) Create a simple job in TOS.(see screenshot1)
2) Export the job Java script.(see screenshot 2 and 3)
3) Unzip the Java script file on current folder.
4) Launch Eclipse and create a new Java project, then create a class 'Talend.java'.(see screenshot4)
5) Right click on test and select 'Build Path'-->'Configure Build Path'. (see screenshot 5)
6) Click on 'Add External Jars' button to import the jar file 'myjob_0_1.jar' (under myJob_0.1\myJob_0.1\myJob) and all the jar files (under myJob_0.1\myJob_0.1\lib) (see screenshot 6 and 7)
7) Type in the Java code in class 'Talend.java' (see screenshot 😎

public class Talend
{
	public static void main(String[] args)
	{
		shong.myjob_0_1.myJob.main(new String[]{});
	}
}

Here you will notice that:
shong: Talend project name
myjob_0_1: jar file name
myJob: Talend job name
😎 Finally, run the Java program.(see the screenshot 9)
Best regards
shong

[Anonymous]

Hi everybody !
I'm very interisting by this solution but I'm interisting by two other things.
The first is I would like give argument for the context param
And the second my job finish by a tBuffertOutput component and I would like to recup the data.
How can I do ?
Thank you !

[Anonymous]

Hi togethter,
I wrote a integration for a talend job to is it in the Job Scheduler.
One part of the integration is a java wrapper to easily call a talend job (because additional you have to solve (depending of your configuration) some problems with the class path.
tBuffetOuput is not possible but may be worth a closer look.
If you would like to have more information you can contact me by PM. I'll publish the code (as open source) as soon I get time to do it ...
Bye
Volker

[Anonymous]

I published a first version of the code at sourceforge http://sourceforge.net/projects/talendjobschedu/.
If you have any question please contact me (until I wrote a documentation).
Bye
Volker

[Anonymous]

Hi Volker
Nice work you have done there.
I had an analog Wrapper to implements and found your post, and downloaded your source code.
To go further, did you think about how Talend could notify progress to your application.
Some "callback" interface allowing the app to display job progress for instance.
I will try something around tSocketOutput and a RMI listener in app or in the Wrapper.

Regards

[Anonymous]

Hi there,
I'am just evaluating the job scheduler Volker was takling about and I was starting to write a wrapper class too.
I didn't test yours yet, but does it works with the new version 3.1.x of Talend, I notice some stuffs changed.
If you have some documentation about it, it would help me too to get started (conventions about context variables and sos params).
I'm deeply interested in any integration of talend job, with other opensource plateforms.
I worked on an GUI TalendJobLauncher based on the .item xml source file to get parameters.
I don't know if there is some neat way to split a talend job in steps a third party product could control, (apart from creating distinct jobs of course).
Regards

[Anonymous]

Did anybody tried an integration with http://community.intalio.com/ an open source BPMS ?

[Anonymous]

Hi Morbo,
I didn't test the scheduler with 3.1. But I set it just now on my ToDo list. I can't believe that this will be a big effort. But actual there much work to do at my job and that means less spare time 😐
If you have any detailed question, just ask. I'll monitor this thread (I actual don't manage to read all) but you could also send me a pm.
Bye
Volker

[Anonymous]

7) Type in the Java code in class 'Talend.java' (see screenshot 😎

public class Talend
{
	public static void main(String[] args)
	{
		shong.myjob_0_1.myJob.main(new String[]{});
	}
}

shong

Thanks for that
How does one also specify the path to any relevant context files that might be required using this approach? I have seen a few threads about this but nothing from those seems to be helping me very much (they appear to work within batch files but I've not seen mention of them regarding an integrated project).
For example - Talend Open Studio will deliver a properties file such as job/jobname/context/Default.properties. I copy those properties into my project but can't seem to get the job to pick them up using the switch '--context_param file= /properties/Default.properties'
Any help appreicated.
cheers,
neil