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Debugging model post processing [message #769039]

Wed, 21 December 2011 09:43

Reinaldo Junior

Messages: 36
Registered: March 2011

Member

I'm trying to learn about Xtext model post-processing as mentioned here.

I found an old post about using log4j integration on Xtext (http://www.eclipse.org/forums/index.php/m/26468/?srch=logging#msg_26468).

Is there any way to send a log message from the Xtext post processor? I tried to import log4j with no success.

FIY, I'm working on a Xtext 1.0.2 project.

Thank you.

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Re: Debugging model post processing [message #769101 is a reply to message #769039]

Wed, 21 December 2011 12:05

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi,

adding org.eclipse.xtend.util.stdlib as dep and logging like

extension org::eclipse::xtend::util::stdlib::io; 

process(xtext::GeneratedMetamodel this) :
  error("Here we go")
;

works for me

~Christian

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Debugging model post processing [message #769166 is a reply to message #769101]

Wed, 21 December 2011 14:09

Reinaldo Junior

Messages: 36
Registered: March 2011

Member

Didn't worked. It says:

Error while importing extension: File org::eclipse::xtend::util::stdlib::io
not found.

Is there any dependency I should add to the plugin?

[Updated on: Wed, 21 December 2011 14:09]

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Re: Debugging model post processing [message #769171 is a reply to message #769166]

Wed, 21 December 2011 14:14

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Quote:

adding org.eclipse.xtend.util.stdlib as dep

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Debugging model post processing [message #769186 is a reply to message #769171]

Wed, 21 December 2011 14:39

Reinaldo Junior

Messages: 36
Registered: March 2011

Member

The problem is that this plugin is not installed and there is not any Xtend available from Xtext update site.

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Re: Debugging model post processing [message #769189 is a reply to message #769186]

Wed, 21 December 2011 14:40

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi,

it is part of xpand Wink

~Christian

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Debugging model post processing [message #769190 is a reply to message #769186]

Wed, 21 December 2011 14:42

Reinaldo Junior

Messages: 36
Registered: March 2011

Member

Is this package only available at Indigo release?

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Re: Debugging model post processing [message #769193 is a reply to message #769190]

Wed, 21 December 2011 14:46

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

no it is part of helios too

-> Helios -> Modeling -> Xpand SDK

~Christian

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Debugging model post processing [message #769195 is a reply to message #769193]

Wed, 21 December 2011 14:52

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

btw it was even part of oAW 4.3.1 (under a different namespace) in Ganymede

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

[Updated on: Wed, 21 December 2011 14:52]

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Re: Debugging model post processing [message #769266 is a reply to message #769195]

Wed, 21 December 2011 17:14

Reinaldo Junior

Messages: 36
Registered: March 2011

Member

Thank you Christian. Where can I see the error messages?

I tried to look at the "Error Log", "Problems" and "Console" views. I looked at the Eclipse instance that I'm using to edit the code, and also looked at the Eclipse instance that opens when I run the Xtext project as an Eclipse Application.

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Re: Debugging model post processing [message #769268 is a reply to message #769266]

Wed, 21 December 2011 17:18

Reinaldo Junior

Messages: 36
Registered: March 2011

Member

Should I create a log4j.properties file as stated in this document (http://wiki.eclipse.org/Xtext_Project_Plan/Features/Logging)?

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Re: Debugging model post processing [message #769343 is a reply to message #769268]

Wed, 21 December 2011 20:58

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi you run the GenerateMydsl workflow and see the logs amoung the
others in the console

ps: we are talking about metamodel postprocessing. this is changing the ecore that is inferred by xtext so are you sure that is thing you want to do?

~Christian

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

[Updated on: Wed, 21 December 2011 22:38]

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Re: Debugging model post processing [message #769822 is a reply to message #769343]

Thu, 22 December 2011 18:30

Reinaldo Junior

Messages: 36
Registered: March 2011

Member

I was thinking this post processing could change the model instance generated by the parser. My goal is adding "default behaviour" to the DSL without using a model transformation.

Any tip?

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