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invoking workflow with XPandfacade causes problems with primitive types [message #731519]

Sat, 01 October 2011 15:09

st oehm

Messages: 79
Registered: October 2009

Member

hello everbody
i want to invoke my xpand workflow with xpandfacade, to generate code for a uml-model. that works very well, but the problem is, that the primitives types are not recognized, there is only null in the code.

i found here a similar problem

https://bugs.eclipse.org/bugs/show_bug.cgi?id=333605

i tried the workaround but it does not work, maybe someone can help me? the code invoking the workflow is below

//put uml-model in a resource
...
resource = resourceSet.getResource(UMLuri, true);

//output
OutputImpl output = new OutputImpl();
Outlet outlet = new Outlet("src-gen");
outlet.setOverwrite(true);
output.addOutlet(outlet);

//protected regions
ProtectedRegionResolverImpl prs = new ProtectedRegionResolverImpl();
prs.setSrcPathes("src-gen");

//global variables
Map<String,Variable> globalVarsMap = new HashMap<String,Variable>();
Variable v = new Variable("Boolean", true);
globalVarsMap.put("naryAssociationFlag", v);

XpandExecutionContextImpl execCtx = new XpandExecutionContextImpl
(output, prs, globalVarsMap, null, null);

//tries the workaround from the link, but the primitive types are still
//null
execCtx.registerMetaModel(new ExtendedUML2Metamodell());
XpandFacade facade = XpandFacade.create(execCtx);
facade.evaluate("templateMiddle::Template::main",
resource.getContents().get(0));

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Re: invoking workflow with XPandfacade causes problems with primitive types [message #731523 is a reply to message #731519]

Sat, 01 October 2011 15:15

Christian Dietrich

Messages: 14593
Registered: July 2009

Senior Member

Hi,

my workaround requires you to do the additional mappings yourself by calling addmapping on the metamodel

~Christian

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

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Re: invoking workflow with XPandfacade causes problems with primitive types [message #731527 is a reply to message #731523]

Sat, 01 October 2011 15:22

st oehm

Messages: 79
Registered: October 2009

Member

hi christian
thanks for your fast reply!
i have no idea how this could work

maybe you can post a little example

best regards
stoehm

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Re: invoking workflow with XPandfacade causes problems with primitive types [message #731531 is a reply to message #731527]

Sat, 01 October 2011 15:32

Christian Dietrich

Messages: 14593
Registered: July 2009

Senior Member

Hi,

you should be able to transform the workflow code

<metaModel class="model.ExtendedUML2Metamodel">
            <mapping from="EcorePrimitiveTypes::EString" to="ecore::EString" />
        </metaModel>

to java (pseudo code)

ExtendedUML2Metamodel mm = new ExtendedUML2Metamodel ();
Mapping m1 = new Mapping("EcorePrimitiveTypes::EString","ecore::EString");
mm.addMapping(m1);
execCtx.registerMetaModel(mm)

~Christian

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

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Re: invoking workflow with XPandfacade causes problems with primitive types [message #731541 is a reply to message #731519]

Sat, 01 October 2011 16:18

Ed Willink

Messages: 7635
Registered: July 2009

Senior Member

Hi

On 01/10/2011 16:09, stoehm wrote:
> hello everbody
> i want to invoke my xpand workflow with xpandfacade, to generate code
> for a uml-model. that works very well, but the problem is, that the
> primitives types are not recognized, there is only null in the code.
You might be interested to know that Juno M2 contains a UML 2.4.1
targetted UML2 project. Since the base models come from OMG, they might
be right. UML 2.4 separates the primitives out into a separate package,
which is different but ultimately good news.

Regards

Ed Willink

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Re: invoking workflow with XPandfacade causes problems with primitive types [message #731567 is a reply to message #731541]

Sat, 01 October 2011 19:24

st oehm

Messages: 79
Registered: October 2009

Member

hi
thanks for your fast replys!

@ed, ah ok version 2.4 has some nice improvements, but for now we can't change the version Confused

@christian
for now i changed the code to this:

ExtendedUML2Metamodell metamodel = new ExtendedUML2Metamodell();
Mapping m1 = new Mapping("UMLPrimitiveTypes::String","ecore::EString");
Mapping m2 = new Mapping("JavaPrimitiveTypes::int","ecore::EInt");
metamodel.addMapping(m1);
metamodel.addMapping(m2);

but it does not work, i tried several other things but they don't work too. i read in the xpand-manual, that the thing ein have to map to depends on the metamodel. in my case this UML, so maybe i have to put "UMLPrimitiveTypes::String" as second parameter, but what is then the first parameter?

btw: it is interesting, when i had my own .mwe-file i could run my codegenerator without problems. the primitiveTypes were all corect, even if i had no mappings in my workflow

[Updated on: Sat, 01 October 2011 19:26]

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Re: invoking workflow with XPandfacade causes problems with primitive types [message #731570 is a reply to message #731567]

Sat, 01 October 2011 19:30

Christian Dietrich

Messages: 14593
Registered: July 2009

Senior Member

Hi,

no! the patch is for the UML Metamodel. did you debugging into the code? what happens? are you sure you are suffering the bug you mentioned? did you call the uml setup class? can you share a executable reproducable example?

~Christian

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

[Updated on: Sat, 01 October 2011 19:31]

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Re: invoking workflow with XPandfacade causes problems with primitive types [message #731574 is a reply to message #731570]

Sat, 01 October 2011 19:52

st oehm

Messages: 79
Registered: October 2009

Member

i think, you are rigth
it maybe has nothing to do with bugreport, because in my workflow i set the org.eclipse.xtend.typesystem.uml2.Setup
but how can i do this with facade
i guess i have to use XpandExecutionContextImpl to set it, but i dont know the rigth call, because the methods has no meaningful parameters

greetings
stoehm

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