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XtextLinkingDiagnostic Error while loading xtext model [message #1791009]

Thu, 21 June 2018 11:35

Peter Altmayer

Messages: 7
Registered: April 2018

Junior Member

Hi,

I'm loading a xtext model in an java application.
There are no errors if a load a model with no further reference to other models.
But if I load a xtext model that has a reference to another model I get following error message:

XtextLinkingDiagnostic: null:27 Couldn't resolve reference to <[Referenced Element Type]> '[Reference Element Name]'.

(I replaced the real names of Element and Element Type)

This is the way I load the model:

public static void main(String[] args) {		
	Injector injector = new MyDslStandaloneSetup().createInjectorAndDoEMFRegistration();
	new MySecondDslStandaloneSetup().register(injector);
	
	XtextResourceSet resourceSet = injector.getInstance(XtextResourceSet.class);
		
	resourceSet.addLoadOption(XtextResource.OPTION_RESOLVE_ALL, Boolean.TRUE);
	File file = new File("/path/to/model.mdl");
	Resource resource = resourceSet.getResource(URI.createURI(file.toURI().toString()), true);
		
	for(Diagnostic error : resource.getErrors() )
		System.err.println(error.toString());

Just to make it clear: The application does not throw any exception. The error is obtained from the resource (see for-loop). Also the model itself is loaded properly, only the references to the other model are missing.
I think the problem is the way, I import the referenced model (this is the first line of model.mdl):

IMPORT "my_second_model.mdl2"

Both of the two models are in the same folder. Do I have to write something like IMPORT "/platform..."?
Currently, even if i import a non existing model, there are no further errors. It seems like the import statement is just ignored while loading the model like this (the models itself are working properly, references are resolved while editing the model).

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Re: XtextLinkingDiagnostic Error while loading xtext model [message #1791010 is a reply to message #1791009]

Thu, 21 June 2018 11:40

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

there is no import traversal => you need to populate the resourceset with all resources upfront.

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

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Re: XtextLinkingDiagnostic Error while loading xtext model [message #1791011 is a reply to message #1791010]

Thu, 21 June 2018 11:45

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

and you should remove the resourceSet.addLoadOption(XtextResource.OPTION_RESOLVE_ALL, Boolean.TRUE);
and do a manual ecoreuril.resolveall after loading all resources

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

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Re: XtextLinkingDiagnostic Error while loading xtext model [message #1791012 is a reply to message #1791010]

Thu, 21 June 2018 11:50

Peter Altmayer

Messages: 7
Registered: April 2018

Junior Member

Thanks very much.
I do not clearly understand, how to do that.
Can you show some lines of code?

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Re: XtextLinkingDiagnostic Error while loading xtext model [message #1791019 is a reply to message #1791012]

Thu, 21 June 2018 13:20

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Resource resource = resourceSet.getResource(URI.createURI(file.toURI().toString()), true);
Resource resource2 = resourceSet.getResource(URI.createURI(file2.toURI().toString()), true);
Resource resource3 = resourceSet.getResource(URI.createURI(file3.toURI().toString()), true);
Resource resource4 = resourceSet.getResource(URI.createURI(file4.toURI().toString()), true);
Resource resource5 = resourceSet.getResource(URI.createURI(file5.toURI().toString()), true);

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

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