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Resolving Crossreferences in Eclipse context [message #985460]

Thu, 15 November 2012 12:12

Robert Wild

Messages: 33
Registered: August 2012

Member

I'd like to resolve crossreferences across multiple files in my DSL to display some actual values in Tooltips.

Multiple files are included with explicit include statements like in C. I have a class, that processes reads these include statements, put the referenced files in a ResourceSet and calls EcoreUtil.resolveAll() on the ResourceSet to resolve crossreferences across multiple files.

This works fine when running it Standalone after calling StandaloneSetup. When called in EObjectDocumentationProvider or anywhere else in the editor context crossreferences don't get resolved and remain as "Link<someNumbers>" in the Model.

Why does EcoreUtil.resolveAll() not work in the eclipse context and how can I resolve these crossreferences?

I'm sure, I'm doing something horribly wrong, but I haven't found the right way yet. Wink

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Re: Resolving Crossreferences in Eclipse context [message #985513 is a reply to message #985460]

Thu, 15 November 2012 13:03

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi how do you get the resource set. ?

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Re: Resolving Crossreferences in Eclipse context [message #985545 is a reply to message #985513]

Thu, 15 November 2012 13:35

Robert Wild

Messages: 33
Registered: August 2012

Member

It's a bit messy. Maybe I need to clean that up...

List<Resource> result = new ArrayList<Resource>();
URI rootFile = URI.createFileURI(filename);
Resource rootResource = null;
ResourceSet rs = new ResourceSetImpl();
rootResource = rs.getResource(rootFile, true);

<recursion that adds imported files to result>

result.add(0, rootResource);
ResourceSet resourceSet = new ResourceSetImpl();
for(Resource resource : result) {
	resourceSet.getResource(resource.getURI(), true);
}
EcoreUtil.resolveAll(resourceSet);

I hope that's all of the relevant lines.

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Re: Resolving Crossreferences in Eclipse context [message #985547 is a reply to message #985545]

Thu, 15 November 2012 13:38

Robert Wild

Messages: 33
Registered: August 2012

Member

I forgot... the List<Resource> is returned in a Variable resources and then this happens:

		List<Resource> resources = createResources(filename);
		if (resources != null) {
			ResourceSet resourceSet = new ResourceSetImpl();
			for(Resource resource : resources) {
				resourceSet.getResource(resource.getURI(), true);
			}
			EcoreUtil.resolveAll(resourceSet);

I really need to clean up this mess...

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Re: Resolving Crossreferences in Eclipse context [message #985567 is a reply to message #985545]

Thu, 15 November 2012 13:53

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Use Iresourcesetprovider to get the resourceset

--
Need training, onsite consulting or any other kind of help for Xtext?
Go visit http://xtext.itemis.com or send a mail to xtext at itemis dot de

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

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Re: Resolving Crossreferences in Eclipse context [message #985641 is a reply to message #985567]

Thu, 15 November 2012 15:15

Robert Wild

Messages: 33
Registered: August 2012

Member

ok, I used


IResourceSetProvider resourceSetProvider;
ResourceSet resourceSet = resourceSetProvider.get(ResourcesPlugin.getWorkspace().getRoot().getProject());

to initialize the ResourceSet but the references still don't get resolved. Have I used IResourceSetProvider correctly?

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Re: Resolving Crossreferences in Eclipse context [message #985648 is a reply to message #985641]

Thu, 15 November 2012 15:30

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Can you give more Context? How where do you call the stuff. Are you
sure you use the right project?

--
Need training, onsite consulting or any other kind of help for Xtext?
Go visit http://xtext.itemis.com or send a mail to xtext at itemis dot de

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

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Re: Resolving Crossreferences in Eclipse context [message #986271 is a reply to message #985460]

Mon, 19 November 2012 16:48

Robert Wild

Messages: 33
Registered: August 2012

Member

I got it...

Here's something for others that have this problem:
To get the resourceSet from a URI:

IResourceSet resourceSet = null;
if (resourceSetProvider != null) {
	IWorkspace workspace = ResourcesPlugin.getWorkspace();
	String s = uri.isPlatformResource() ? uri.toPlatformString(true) : uri.toString();
	IPath path = new Path(s);
	IResource resource = workspace.getRoot().getFile(path);
	IProject project = null == resource ? null : resource.getProject();
	resourceSet = resourceSetProvider.get(project==null?);
}else{
	resourceSet = new ResourceSetImpl();
}

The ResourceSetProvider can be initialized by Guice. By supplying (optional = true) it will be null when running standalone, thus explaining the if-clause above.

(optional = true)
IResourceSetProvider resourceSetProvider;

If this solution is stupid, please tell me...

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