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Generated ecore models refer to Xbase using relative paths [message #1016175]

Tue, 05 March 2013 06:00

Eclipse User

Hi,

the EMF-IncQuery project recently received a bug report (https://bugs.eclipse.org/bugs/show_bug.cgi?id=401552) that the generated ecore models contain references with strange relative paths such as the following:

eType="ecore:EClass ../../../../../../../org.eclipse.xtext.xbase/model/Xbase.ecore#//XExpression"

All examples contain references to referenced Xbase elements. I have experimented with various mwe settings as suggested in various forum posts, but could not find a way to replace those relative urls with absolute ones.

Is there a way I missed to generate the ecore models with either platform:/plugin style url (I know about the Eclipse platform dependency that way) or EPackage nsUri based urls, or I have to replace the EMF model with a manually created one?

Thanks,
Zoltán

Re: Generated ecore models refer to Xbase using relative paths [message #1044855 is a reply to message #1016175]

Fri, 19 April 2013 08:22

Eclipse User

Hi,

i'm facing the similar problem when moving one of our dsls into a totally different folder structure it seems to fail due to these relatives pathes found in the .ecore files.

Did you find any hint/solution on how to replace these pathes?

Greets,
Carlo

Re: Generated ecore models refer to Xbase using relative paths [message #1044972 is a reply to message #1044855]

Fri, 19 April 2013 11:22

Eclipse User

Hi,

Sadly, I have really no idea how to solve this. I am thinking about customizing the workflow, but I have no idea if it is possible to register e.g. an EMF URIHandler to the Xtext generator process.

If I have a solution, I will post it here, but nothing tangible yet.

Cheers,
Zoltán

Re: Generated ecore models refer to Xbase using relative paths [message #1049989 is a reply to message #1044972]

Fri, 26 April 2013 10:54

Eclipse User

Hi,

i added an URI Mapping to the mwe-Workflow of the using project

uriMap = {
from ="../../../../../../../../"
to = "platform:/resource/"
}

This seems to do the trick.

Greets,
Carlo

Re: Generated ecore models refer to Xbase using relative paths [message #1243909 is a reply to message #1016175]

Tue, 11 February 2014 11:23

Eclipse User

Hi,

The uri mapping approach as suggested by Carlo M-R in the latest post did not work for me in Xtext 2.4.3.

However, I found out what is causing this issue in general: the EMFGenerator defines a static internal class called 'ToPlatformResourceDeresolvingURIHandler' that extends the 'PlatformSchemeAware' uri handler that creates cross-project relative references.

I have created an updated version of this generator in EMF-IncQuery, that replaces the URIHandler to extend the 'AbsoluteCrossBundleAware' uri handler class.

The corresponding change can be found in the following commit: http://git.eclipse.org/c/incquery/org.eclipse.incquery.git/commit/?id=e0fe2bc02d4adf8df6779132bff5595a543bf037

Cheers,
Zoltán

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