Eclipse Community Forums: MoDisco » How to process my KDM models

Help

Home

Home » Modeling » MoDisco » How to process my KDM models

Show: Today's Messages :: Show Polls :: Message Navigator

How to process my KDM models [message #1005842]

Mon, 28 January 2013 18:42

keynne Belle
Messages: 6
Registered: January 2013

Junior Member

Hello.
I've learned a bit about KDM and i just downloaded the MoDisco distribution.
I generated a KDM model from a java project and then, i created my query set and my queries using the gui and i obtained the corresponding code in java. But i don't have a clue on what to put in the body of my queries in order to get the root of my model/extract specific dependencies/specific modules instead of the "return null;" instruction that is proposed by default.

Report message to a moderator

Re: How to process my KDM models [message #1005850 is a reply to message #1005842]

Mon, 28 January 2013 23:02

keynne Belle
Messages: 6
Registered: January 2013

Junior Member

In order to write a request that allows me to get the KDM segment associated to my java project, i searched examples on the web and then i wrote the following query:

public class GetSegment implements IJavaModelQuery<Annotation, Segment> {
public Segment evaluate(final Annotation context, final ParameterValueList parameterValues)
throws ModelQueryExecutionException {

ResourceSet resourceSet=new ResourceSetImpl();
resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap().put("*",
new XMIResourceFactoryImpl());

resourceSet.getPackageRegistry().put(Resource.Factory.Registry.DEFAULT_EXTENSION,new XMIResourceFactoryImpl());

File fichierKDM = new File(Test.getProjectPath());
URI uri = URI.createFileURI(fichierKDM.getAbsolutePath());

Resource modelResource=resourceSet.getResource(uri, true);

Segment segment = (Segment) modelResource.getContents().get(0);

return segment;
}
}

But unfortunately, i got the following exception and i don't know how to fix it:
Exception in thread "main" org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: org.eclipse.emf.ecore.xmi.PackageNotFoundException: Package with uri 'http://www.eclipse.org/MoDisco/kdm/kdm' not found. (file:/D:/MoDiscoWorkspace/MyModiscoProject/MyModiscoProject_kdm.xmi, 3, 16)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:315)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:397)
at MyModiscoProject.GetSegment.evaluate(GetSegment.java:33)
at MyModiscoProject.Test.main(Test.java:16)
Caused by: org.eclipse.emf.ecore.xmi.PackageNotFoundException: Package with uri 'http://www.eclipse.org/MoDisco/kdm/kdm' not found. (file:/D:/MoDiscoWorkspace/MyModiscoProject/MyModiscoProject_kdm.xmi, 3, 16)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getPackageForURI(XMLHandler.java:2591)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getFactoryForPrefix(XMLHandler.java:2422)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1299)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1468)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1019)
at org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:87)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:1001)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:712)
at org.eclipse.emf.ecore.xmi.impl.XMIHandler.startElement(XMIHandler.java:169)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source)
at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:181)
at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:242)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1511)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1290)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:255)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:270)
... 3 more

Report message to a moderator

Re: How to process my KDM models [message #1006000 is a reply to message #1005850]

Tue, 29 January 2013 09:13

Hugo Bruneliere
Messages: 470
Registered: July 2009

Senior Member

Hello,

The MoDisco Query Manager has been implemented in order to facilitate the creation of new queries in different languages, including notably Java.
Thus, when defining the body of the evaluate method, the context (i.e. the model element type the query is applied on) is already directly provided to you.
You don't have to implement any tentative access to files or EMF resources.
I encourage you to take a deeper look to the detailed MoDisco Reference Documentation (and its Query Manager section) to get more insights on this.
Generally, the MoDisco Documentation page (as available from the MoDisco homepage) is providing many different types of resources helping you to better understand the framework and its potential usages.

Best regards,

Hugo

------------------------------------------
Hugo Bruneliere - R&D Engineer
AtlanMod research team (Inria, EMN & LINA)
Ecole des Mines de Nantes
Nantes - France
------------------------------------------

Report message to a moderator

Re: How to process my KDM models [message #1006090 is a reply to message #1006000]

Tue, 29 January 2013 15:00

keynne Belle
Messages: 6
Registered: January 2013

Junior Member

Thank a lot for the answer. I just read the documentation which helps to make queries. Nevertheless, i think that if i follow that path, analysing 20 projects will oblige me to make 20 query sets. That's the reason why i want to write my queries programatically in order to make them enough general and give to each of them the path of any xmi file i want to process. Then, i'll use this path to get my model elements (segments, code models, compilationUnit, calls and so on). So, can you help me to fix my source code?

Report message to a moderator

Re: How to process my KDM models [message #1006201 is a reply to message #1006090]

Wed, 30 January 2013 07:42

Hugo Bruneliere
Messages: 470
Registered: July 2009

Senior Member

A QuerySet is defined among a given metamodel, but can be applied on as many models as you want as long as these models conform to that metamodel.
In your case, defining your QuerySet among the KDM metamodel, you will be able to use its queries on all the KDM models that you can get from the analyzed projects.

Hugo

Report message to a moderator

Re: How to process my KDM models [message #1006328 is a reply to message #1006201]

Wed, 30 January 2013 15:49

keynne Belle
Messages: 6
Registered: January 2013

Junior Member

Thanks for this quick answer. I have another concern: i would like to generate a single xmi file containing all my kdm models (inventory model, code model in the code package, code model in the action package, datamodel and so on). How can i do so?
I also noticed that there is no snippet in my kdm file. What jar files can i download in order to tackle this problem?

Report message to a moderator

Re: How to process my KDM models [message #1006415 is a reply to message #1006328]

Thu, 31 January 2013 05:02

Hugo Bruneliere
Messages: 470
Registered: July 2009

Senior Member

The current versions of the MoDisco Java & KDM discoverers only support the discovery from single projects.
The support for multiple projects as inputs may be developed and added in the future in MoDisco.
In the meantime, a quick fix is to specify yourself another KDM model simply referencing the root "Model" model elements coming from the different discovered models. Thus, loading this "integration" model should also load all the different referenced models.

Concerning your second point, KDM is defined to work at an abstraction level that is not going down to the method implementation details.
If you want models fully representing your projects (i.e. down to the methods internal implementation), you should rather use Java models obtained from the Java model discoverer.

Hugo

Report message to a moderator

Re: How to process my KDM models [message #1006598 is a reply to message #1006415]

Fri, 01 February 2013 01:48

keynne Belle
Messages: 6
Registered: January 2013

Junior Member

Hello. thanks again for the answers.
I'm working with the MoDisco distribution available with Eclipse Indigo. I attached a file showing all the discoverers that i found there. when i parse my kdm code model, i'm able to get some ActionElement of my java project. Nevertheless, when i invoke the "getOutBound" method on each of these ActionElement in order to get all their outgoing KDMRelationships, i always get a "null" value, whereas the MoDisco Model Browser indicates that my code model contains Calls going from the ActionElement contained in my project. So, i would like to know, if i'm not using the right method to get these outgoing KDMRelationships or if i there is an alternative to get them.

Attachment: discoverers.png
(Size: 17.92KB, Downloaded 40 times)

[Updated on: Fri, 01 February 2013 01:57]

Report message to a moderator

Re: How to process my KDM models [message #1006669 is a reply to message #1006598]

Fri, 01 February 2013 06:27

Hugo Bruneliere
Messages: 470
Registered: July 2009

Senior Member

Looking to a KDM model opened into the MoDisco Model Browser, on an ActionElement the relationship to access to the Calls elements is named actionElement.
You could try to use this relation to get the Calls model elements.

Hugo

Report message to a moderator

Re: How to process my KDM models [message #1008566 is a reply to message #1006669]

Tue, 12 February 2013 23:20

keynne Belle
Messages: 6
Registered: January 2013

Junior Member

thank you for all your answers. they really helped.

Report message to a moderator

Previous Topic:	Help with KDM transformation
Next Topic:	Modisco & Papyrus don't generate UML

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Tue May 28 18:50:37 EDT 2013