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[ATL] Using XSD->EMF metamodel in ATL [message #491624]

Thu, 15 October 2009 09:43

Marin rli?

Messages: 35
Registered: October 2009

Member

Hi all!

Being a beginner in ATL, I'm having a little trouble. My goal is to convert a EMF-based model (Ecore) to another model defined by XSD. I have created a Ecore version of the XSD model using xsd2ecore importer, and checked it's working with the generated EMF editor.

My next step was to create a simple ATL rule to test if the ATL part works:

module EMF2XSD;
create OUT : XSDmodel from IN : EMFmodel;

rule Node {
from
em : EMFmodel!Node
to
xs : XSDmodel!DocumentRoot (
comment <- 'bbbbbbbb'
)
}

This should create a XML file with just one lelement, like this:

<?xml version="1.0" encoding="ISO-8859-1"?>
<comment>bbbbbbbb</comment>

Instead, I get something like this:

<?xml version="1.0" encoding="ISO-8859-1"?>
<XSDmodel:DocumentRoot xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:XSDmodel="file:/D:/xsdmodel.xsd">
<comment>bbbbbbbb</comment>
</XSDmodel:DocumentRoot>

The DocumentRoot element should not occur here, there should be just the <comment> element. DocumentRoot is created as a part of XSD->EMF conversion.

Is there some way to use the xsd2ecore or genmodel mappings created when importing XSD to EMF to overcome this?

Thanks,
Marin.

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Re: [ATL] Using XSD->EMF metamodel in ATL [message #491647 is a reply to message #491624]

Thu, 15 October 2009 11:37

Ed Merks

Messages: 33142
Registered: July 2009

Senior Member

Marin,

Comments below.

Marin Orlić wrote:
> Hi all!
>
> Being a beginner in ATL, I'm having a little trouble. My goal is to
> convert a EMF-based model (Ecore) to another model defined by XSD. I
> have created a Ecore version of the XSD model using xsd2ecore
> importer, and checked it's working with the generated EMF editor.
>
> My next step was to create a simple ATL rule to test if the ATL part
> works:
>
> module EMF2XSD;
> create OUT : XSDmodel from IN : EMFmodel;
>
> rule Node { from em : EMFmodel!Node
> to xs : XSDmodel!DocumentRoot (
> comment <- 'bbbbbbbb'
> )
> }
>
>
> This should create a XML file with just one lelement, like this:
>
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <comment>bbbbbbbb</comment>
>
> Instead, I get something like this:
>
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <XSDmodel:DocumentRoot xmi:version="2.0"
> xmlns:xmi="http://www.omg.org/XMI"
> xmlns:XSDmodel="file:/D:/xsdmodel.xsd">
> <comment>bbbbbbbb</comment>
> </XSDmodel:DocumentRoot>
I'd expect this if you used an XMIResourceImpl to serialize the
instance, rather than an XMLResourceImpl configured like the one in your
generated XyzResourceFactoryImpl.
>
>
> The DocumentRoot element should not occur here, there should be just
> the <comment> element. DocumentRoot is created as a part of XSD->EMF
> conversion.
>
> Is there some way to use the xsd2ecore or genmodel mappings created
> when importing XSD to EMF to overcome this?
>
> Thanks,
> Marin.

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: [ATL] Using XSD->EMF metamodel in ATL [message #491676 is a reply to message #491647]

Thu, 15 October 2009 13:11

Marin rli?

Messages: 35
Registered: October 2009

Member

> I'd expect this if you used an XMIResourceImpl to serialize the
> instance, rather than an XMLResourceImpl configured like the one in your
> generated XyzResourceFactoryImpl.

Now that you said it, it makes perfect sense Smile

I'm running the ATL from Eclipse, is there a way to set the serializer to the EMF-specific VN or the regular VM, I don't see such options..

Is it only possible from ANT or Java? There are samples like Table2HTML that specify the XML extractor in build.xml.

M.

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Re: [ATL] Using XSD->EMF metamodel in ATL [message #491712 is a reply to message #491676]

Thu, 15 October 2009 14:30

William Piers

Messages: 301
Registered: July 2009

Senior Member

This is a multi-part message in MIME format.
--------------050909080201040100030909
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit

Hello,

AT this time, ATL launch configuration cannot parametrize that. The
factory is automatically detected by the file extension. Then if your
xsd doesn't specify one, and you use default ".xml", you need to
programmatically set the option.
This consists on loading the models, initializing the output model using
that method:
org.eclipse.m2m.atl.core.emf.EMFModel.setEmfResourceFactory( Factory)
using the correct EMF factory.
The finally launch the transformation.

Here you can find an example of programmatic launch:
http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.m2m/org .eclipse.m2m.atl/examples/org.eclipse.m2m.atl.examples.publi c2private.ui/src/org/eclipse/m2m/atl/examples/public2private /ui/PrivatizeAction.java?root=Modeling_Project&view=mark up
Also available when ATL is installe, just do :
New > Example...> ATL > Public to private

In the next ATL version (3.1, release next June), it will be possible to
specify content types (so, related factory) for model saving.

Best regards,

William

Marin Orlić a écrit :
>> I'd expect this if you used an XMIResourceImpl to serialize the
>> instance, rather than an XMLResourceImpl configured like the one in your
>> generated XyzResourceFactoryImpl.
>
> Now that you said it, it makes perfect sense :)
> I'm running the ATL from Eclipse, is there a way to set the serializer
> to the EMF-specific VN or the regular VM, I don't see such options..
> Is it only possible from ANT or Java? There are samples like Table2HTML
> that specify the XML extractor in build.xml.
>
> M.

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Re: [ATL] Using XSD->EMF metamodel in ATL [message #491726 is a reply to message #491712]

Thu, 15 October 2009 15:05

Marin rli?

Messages: 35
Registered: October 2009

Member

I created the edit plugins for my metamodel and dropped them in the platform. When the output model file has the correct extension, the serialization works like a charm!

Thank you all Smile

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