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Load EMF model instance from XMI file [message #1474463]

Sat, 15 November 2014 12:43

furkan tanriverdi

Messages: 15
Registered: November 2014

Junior Member

I know there are several QnA about this subject. I have tried lots of solution, I am always getting same error. What I want to do is in my project to read elements and try to find EAttributes and their values, which EClass they belong. EReferences also.

Can you plesea show me a way and a method to traverse xmi file ?

My code structure is like:

Resource.Factory.Registry reg = Resource.Factory.Registry.INSTANCE;
    Map<String, Object> m = reg.getExtensionToFactoryMap();
    m.put("xmi", new XMIResourceFactoryImpl());

    ResourceSet resSet = new ResourceSetImpl();
    Resource resource = resSet.getResource(URI.createURI("model/List.xmi"), true);
    resource.load(Collections.EMPTY_MAP);
    EObject root = resource.getContents().get(0);

Error:

Quote:

Exception in thread "main" org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException: org.eclipse.emf.ecore.xmi.PackageNotFoundException: Package with uri 'List' not found. (file:///C:/Users/2/My%20Repository/UNIT%20Research%20and%20Development/com.unitbilisim.research.transformation/model/List.xmi, 6, 40) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:319) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:278) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:406) at com.unitbilisim.research.transformation.ConvertEcore2Graph.main(ConvertEcore2Graph.java:61) Caused by: org.eclipse.emf.ecore.xmi.PackageNotFoundException: Package with uri 'List' not found. (file:///C:/Users/2/My%20Repository/UNIT%20Research%20and%20Development/com.unitbilisim.research.transformation/model/List.xmi, 6, 40) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getPackageForURI(XMLHandler.java:2625) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getFactoryForPrefix(XMLHandler.java:2458) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1335) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1504) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1026) at org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:77) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:1008) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:719) at org.eclipse.emf.ecore.xmi.impl.XMIHandler.startElement(XMIHandler.java:163) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$ContentDriver.scanRootElementHook(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.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:175) at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:261) at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1518) at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1297) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:259) at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274) ... 2 more

What does 'package with uri "" not found' mean ? Can I read xmi file directly or do I need to parse it as xml file ?

I have also tried this:

    XMIResource resource = new XMIResourceImpl(URI.createURI("model/List.xmi"));
    resource.load(null);
    System.out.println( resource.getContents().get(0) );
PackageNotFoundEx. and Reource$IOWrappedEx. again :(

Please help

kind regards

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Re: Load EMF model instance from XMI file [message #1474570 is a reply to message #1474463]

Sat, 15 November 2014 14:35

Ed Merks

Messages: 33140
Registered: July 2009

Senior Member

Furkan,

Comments below.

On 15/11/2014 2:21 PM, furkan tanrıverdi wrote:
> I know there are several QnA about this subject. I have tried lots of
> solution, I am always getting same error. What I want to do is in my
> project to read elements and try to find EAttributes and their values,
> which EClass they belong. EReferences also.
> Can you plesea show me a way and a method to traverse xmi file ?
>
> My code structure is like:
>
> Resource.Factory.Registry reg = Resource.Factory.Registry.INSTANCE;
> Map<String, Object> m = reg.getExtensionToFactoryMap();
> m.put("xmi", new XMIResourceFactoryImpl());
>
> ResourceSet resSet = new ResourceSetImpl();
> Resource resource =
> resSet.getResource(URI.createURI("model/List.xmi"), true);
> resource.load(Collections.EMPTY_MAP);
> EObject root = resource.getContents().get(0);
You're trying to do this stand alone? Invoke the Generate Test Code and
look for XyzExample.java in the *.tests project.
> Error:
>
> Quote:
>> Exception in thread "main"
>> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl$1DiagnosticWrappedException:
>> org.eclipse.emf.ecore.xmi.PackageNotFoundException: Package with uri
>> 'List' not found.
>> (file:///C:/Users/2/My%20Repository/UNIT%20Research%20and%20Development/com.unitbilisim.research.transformation/model/List.xmi,
>> 6, 40) at
>> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.handleDemandLoadException(ResourceSetImpl.java:319)
>> at
>> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:278)
>> at
>> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:406)
>> at
>> com.unitbilisim.research.transformation.ConvertEcore2Graph.main(ConvertEcore2Graph.java:61)
>> Caused by: org.eclipse.emf.ecore.xmi.PackageNotFoundException:
>> Package with uri 'List' not found.
>> (file:///C:/Users/2/My%20Repository/UNIT%20Research%20and%20Development/com.unitbilisim.research.transformation/model/List.xmi,
>> 6, 40) at
>> org.eclipse.emf.ecore.xmi.impl.XMLHandler.getPackageForURI(XMLHandler.java:2625)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLHandler.getFactoryForPrefix(XMLHandler.java:2458)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1335)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1504)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1026)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:77)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:1008)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:719)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMIHandler.startElement(XMIHandler.java:163)
>> at
>> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown
>> Source) at
>> com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(Unknown
>> Source) at
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown
>> Source) at
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$ContentDriver.scanRootElementHook(Unknown
>> Source) at
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown
>> Source) at
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.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$JAXPSAXParser.parse(Unknown
>> Source) at
>> com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown
>> Source) at
>> org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:175)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:261)
>> at
>> org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1518)
>> at
>> org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1297)
>> at
>> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:259)
>> at
>> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274)
>> ... 2 more
>
>
> What does 'package with uri "" not found' mean ?
That means your xmi file is expecting there to be a registered model,
i.e., an EPackage with that value as the nsURI.
> Can I read xmi file directly or do I need to parse it as xml file ?
XMI is XML. To make any sense of it, you'd need the registered model as
you parse it.
>
> I have also tried this:
>
> XMIResource resource = new
> XMIResourceImpl(URI.createURI("model/List.xmi"));
Where did this XMI come from? Note that I've always telling people not
to use a relative URI to load a resource.
> resource.load(null);
> System.out.println( resource.getContents().get(0) );
> PackageNotFoundEx. and Reource$IOWrappedEx. again :(
>
> Please help
>
> kind regards

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: Load EMF model instance from XMI file [message #1474696 is a reply to message #1474570]

Sat, 15 November 2014 17:06

furkan tanriverdi

Messages: 15
Registered: November 2014

Junior Member

I generated it as dynamic instance from ecore model. It's in my model folder with *.ecore file.

So, what do you suggest load ?

Sorry for my lack of knowledge but I have been working with EMF just for 2 or 3 weeks Sad

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Re: Load EMF model instance from XMI file [message #1474710 is a reply to message #1474696]

Sat, 15 November 2014 17:20

Ed Merks

Messages: 33140
Registered: July 2009

Senior Member

What kind of environment are you wanting to run in? Just stand alone,
or are you building an Eclipse application? What's you goal? In any
case, try generating a model and looking at the example. That will
answer many of your questions...

On 15/11/2014 6:06 PM, furkan tanrıverdi wrote:
> I generated it as dynamic instance from ecore model. It's in my model
> folder with *.ecore file.
> So, what do you suggest load ?
> Sorry for my lack of knowledge but I have been working with EMF just
> for 2 or 3 weeks :(
>

Ed Merks
Professional Support: https://www.macromodeling.com/

Report message to a moderator

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