Re: Problem with transformation UML to text with Atl query [message #545872] |
Fri, 09 July 2010 13:43 |
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Hi,
Some disambiguation is in order here ...
ATL is an m2m (model to model) technology, not m2t (model to text).
This is the m2t newsgroup, yet your whole post consist of ATL code. What
exactly do you intend on doing?
If you really wish to generate text from models, you should use Acceleo,
XPand, JET, or any other dedicated tool (Acceleo uses OCL too as its
navigation language if its OCL that drew you to ATL). Twisting m2m tools
for this use is somewhat difficult to understand :).
If you need for some reason to use ATL, please use the m2m newsgroup
when asking questions (I've added it to the cc: list of this answer)
Laurent Goubet
Obeo
osvaldos88@yahoo.it wrote:
> This is the query I'm running:
>
> query UML2TEXT =
> let filename: String = 'VirtualboxUML.txt' in
> let network: Sequence(UML!Class) =
> UML!Class.allInstances()->asSequence() in
> let filtrati: Sequence(UML!Class) =
> network->select(x|x.hasStereotype('Network')) in
> let Local: Sequence(UML!Class) = filtrati>select(x|not
> x.hasStereotype('Internet')) in
> (
> filtrati->collect(x | x.print())->sum()
> ).writeTo(filename);
>
> uses UML2TXTLib;
>
> and this is the library:
>
> library UML2TXTLib;
>
> helper context UML!Class def: hasStereotype(stereotype : String) :
> Boolean =
> self.getAppliedStereotypes()->exists(e|e.name = stereotype);
>
> helper context UML!Class def: getTagValue(stereotype : String, tag :
> String) : String=
> self.getValue(self.getAppliedStereotype(stereotype),tag);
>
> helper context UML!Class def: print() : String=
> self.name;
>
> When I start the execution of the transformation it gives me this error:
>
> org.eclipse.m2m.atl.engine.emfvm.VMException: Operation not found:
> OclUndefined.writeTo(java.lang.String)
> at main(UML2TEXT.atl[6:2-8:21])
> local variables: self=thisModule, filename='VirtualboxUML.txt',
> network=Sequence {IN!Terminal A:UML!Class, IN!Local 1:UML!Class,
> IN!Router 1:UML!Class, IN!Internet:UML!Class, IN!Router 2:UML!Class,
> IN!Local 2:UML!Class, IN!Terminal B:UML!Class, IN!Terminal C:UML!Class},
> filtrati=Sequence {}, Local=Sequence {}
>
>
> I don't really know what's wrong. The UML Model is correct, so I
> realized that the problem is in the query.
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