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How to run ATL transformation programmatically [message #1816212]

Wed, 23 October 2019 22:56

Vladimir Estivill-Castro

Messages: 2
Registered: October 2019

Junior Member

I have tried the advice given in
1) see the URL modeling-languages.com/executing-atl-transformations-java/
2) See the URL victorguana.blogspot.com/2015/02/running-atl-emftvm-transformations.html
3) See the URL denniswagelaar.wordpress.com/2018/05/20/compiling-and-running-atl-emftvm-from-ant-and-maven/comment-page-1/?unapproved=9&moderation-hash=80fdcc2b3acf1e6e503317bed8fc46e8#comment-9

I would like to
run an ATL programmatically (outside the ECLIPSE environment) with no OUTPUT models because the ATL-code runs an ATL-query. The output is code or a script. Like some of the examples in the ATL zoo (the Example: Microsoft Office Excel Extractor code starts with query XML2Text = XML!Root.allInstances()
->asSequence()
->first().ExcelFile().writeTo('C:\\ ... path to be completed before using the
transformation ... \\exampleExcelJavaSo

I have installed ANT and Maven and can reproduce the example from (3) above. I can run in Netbeans the java code from (2) above. However, the full integrated jar of (1) expects and output model. Modifying any of these resources to what I want to do meets a lot of obstacles. I tried modifying the java code from Victo Guana, and I can change the hardcoded parameters so they can be supplied as on-line parameters. Somehow the .emftvm file that I produce with the ANT/MAVEN transformation by Dennis Wagelaar gives me an error
Can't not set properties, as it is contained in the input model.

Many thanks. If there is a nice tutorial or comprehensive example, that would be very nice. I have event tried to do a plain ANT set of targets but this also failed.

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Re: How to run ATL transformation programmatically [message #1816620 is a reply to message #1816212]

Fri, 01 November 2019 15:53

Dennis Wagelaar

Messages: 581
Registered: September 2012
Location: Belgium

Senior Member

That's too many problems at once: can you start with your transformation in the Eclipse environment and see if that works?

Cheers,
Dennis

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Re: How to run ATL transformation programmatically [message #1859924 is a reply to message #1816620]

Wed, 05 July 2023 14:24

Reynaldo Alvarez

Messages: 2
Registered: July 2023

Junior Member

I have a similar problem. My ATL runs smoothly using the default EMF compiler in Eclipse. However, when trying to execute it from a Java class, I come across solutions that are all oriented towards using EMFTVM. When I add "-- @atlcompiler emftvm" to the ATL file and specify in the execution configuration to use the EMFTVM compiler, I encounter the following error. How can I find out the rules or constraints for using this VM?

An internal error occurred during: "Launching ppsr2dcatcs".
java.lang.IllegalArgumentException: Cannot read properties of 22a6c42c:DCATCS!CSProject, as it is contained in an output model

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Re: How to run ATL transformation programmatically [message #1859933 is a reply to message #1859924]

Thu, 06 July 2023 05:48

Dennis Wagelaar

Messages: 581
Registered: September 2012
Location: Belgium

Senior Member

The differences between the ATL virtual machines are documented here:

https://wiki.eclipse.org/ATL/VM_Comparison

In your case, "Output model navigation" is forbidden in ATL, but only EMFTVM enforces it at runtime.

Cheers,
Dennis

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Re: How to run ATL transformation programmatically [message #1859934 is a reply to message #1859933]

Thu, 06 July 2023 06:56

Reynaldo Alvarez

Messages: 2
Registered: July 2023

Junior Member

Thank you very much for your immediate assistance. I can now see the differences. Could you please tell me if there is any way to invoke the transformation using RegularVM? Would it be considered bad practice to avoid EMFTVM?

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