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Home » Archived » M2M (model-to-model transformation) » ATL launch error
ATL launch error [message #521486] Wed, 17 March 2010 18:18 Go to next message
Vaz is currently offline VazFriend
Messages: 16
Registered: July 2009
Junior Member
Hi all,

I've written a java application to run a basic ATL transformation. The ".asm" file and all the models came from the families to Persons example, so i exclude any rule or model issue.
I'm getting an exception when laucnhing the transformation itself. The code is as follows: 
//Setup launcher...
    	EMFVMLauncher launcher = new EMFVMLauncher();
    	CoreService.registerLauncher(launcher);
    	launcher.initialize(Options);
    	
    	CoreService.registerFactory("EMF", EMFModelFactory.class); 
    	ModelFactory factory = CoreService.createModelFactory("EMF");
    	
    	CoreService.registerExtractor("EMF", new EMFExtractor());
    	CoreService.registerInjector("EMF", new EMFInjector()); 


		EMFInjector injector = new EMFInjector();
		IExtractor extractor = CoreService.getExtractor(factory.getDefaultExtractorName());
	
		// Metamodels && models
		EMFReferenceModel Metamodel1 = (EMFReferenceModel)factory.newReferenceModel();
		//Resource resource = new XMIResourceImpl(URI.createURI("file:/C:/wS/BS/atl_data/sample-Families.xmi"));
		injector.inject(Metamodel1, "Families.ecore");
		IModel model1 = factory.newModel(Metamodel1);
		injector.inject(model1, "sample-Families.xmi");
		
		EMFReferenceModel Metamodel2 = (EMFReferenceModel)factory.newReferenceModel();
		injector.inject(Metamodel2, "Persons.ecore");
		IModel model2 = factory.newModel(Metamodel2);
			

		// Launching
		launcher.addInModel(model1, "IN_MODEL", "IN_META"); //$NON-NLS-1$ //$NON-NLS-2$
		launcher.addOutModel(model2, "OUT_MODEL", "OUT_META"); //$NON-NLS-1$ //$NON-NLS-2$
		
		URL asmURL = new URL("file:/C:/wS/BS/one.asm");
		InputStream asmInputStream = asmURL.openStream();
		InputStream[] modules = new InputStream[1];
		modules[0] = asmInputStream;
                launcher.launch(ILauncher.RUN_MODE, new NullProgressMonitor(), Collections.<String, Object> emptyMap(),(Object[])modules);


And of course, forgot to post the exception i get:
Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/m2m/atl/common/ATLExecutionException
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at org.eclipse.m2m.atl.engine.emfvm.launch.EMFVMLauncher.loadModule(EMFVMLauncher.java:171)
	at org.eclipse.m2m.atl.engine.emfvm.launch.EMFVMLauncher.getASMFromObject(EMFVMLauncher.java:183)
	at org.eclipse.m2m.atl.engine.emfvm.launch.EMFVMLauncher.launch(EMFVMLauncher.java:131)
	at bs.atl.PrivatizeAction.privatize(PrivatizeAction.java:169)
	at bs.Loader.XsdTest.main(XsdTest.java:63)
Caused by: java.lang.ClassNotFoundException: org.eclipse.m2m.atl.common.ATLExecutionException
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)



Are there any obvious errors with this code?
Any help would be greatly appreciated.

Thank you,

João Vaz

[Updated on: Wed, 17 March 2010 18:25]

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Re: ATL launch error [message #521592 is a reply to message #521486] Thu, 18 March 2010 08:57 Go to previous messageGo to next message
Sylvain EVEILLARD is currently offline Sylvain EVEILLARDFriend
Messages: 556
Registered: July 2009
Senior Member
Looks like you're missing some dependencies. Try to add org.eclipse.m2m.atl.common as a dependency.

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Re: ATL launch error [message #521651 is a reply to message #521592] Thu, 18 March 2010 12:24 Go to previous messageGo to next message
Vaz is currently offline VazFriend
Messages: 16
Registered: July 2009
Junior Member
Sylvain EVEILLARD wrote on Thu, 18 March 2010 04:57
Looks like you're missing some dependencies. Try to add org.eclipse.m2m.atl.common as a dependency.

Thanks, it did really help... although now a new problem arises when launching the vm: 
org.eclipse.m2m.atl.engine.emfvm.VMException: Could not find model Families


It seems that the metamodel Families isn't being loaded correctly. Just debugged the code, and added a watch to the Families Metamodel and i'm pretty much sure it isn't correct.

To load the Families metamodel i'm using:
EMFReferenceModel Metamodel1 = (EMFReferenceModel)factory.newReferenceModel();
injector.inject(Metamodel1, "file:/C:/wS/BS/Families.ecore");


And the Watch i added returned this:
{org.eclipse.emf.ecore.impl.EClassImpl@dc86eb (name: EDataType) (instanceClassName: null) (abstract: false, interface: false)=[org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name: String) (instanceClassName: java.lang.String) (serializable: true)]}
{org.eclipse.emf.ecore.impl.EClassImpl@1546dbc (name: EPackage) (instanceClassName: null) (abstract: false, interface: false)=[org.eclipse.emf.ecore.impl.EPackageImpl@c1186f (name: Families) (nsURI: Families, nsPrefix: null), org.eclipse.emf.ecore.impl.EPackageImpl@12b3349 (name: PrimitiveTypes) (nsURI: PrimitiveTypes, nsPrefix: null)], org.eclipse.emf.ecore.impl.EClassImpl@dc86eb (name: EDataType) (instanceClassName: null) (abstract: false, interface: false)=[org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name: String) (instanceClassName: java.lang.String) (serializable: true)]}
null
false
{Member=org.eclipse.emf.ecore.impl.EClassImpl@6a63d3 (name: Member) (instanceClassName: null) (abstract: false, interface: false), Families::Family=org.eclipse.emf.ecore.impl.EClassImpl@b9b8d0 (name: Family) (instanceClassName: null) (abstract: false, interface: false), PrimitiveTypes::String=org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name: String) (instanceClassName: java.lang.String) (serializable: true), Families::Member=org.eclipse.emf.ecore.impl.EClassImpl@6a63d3 (name: Member) (instanceClassName: null) (abstract: false, interface: false), String=org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name: String) (instanceClassName: java.lang.String) (serializable: true), Family=org.eclipse.emf.ecore.impl.EClassImpl@b9b8d0 (name: Family) (instanceClassName: null) (abstract: false, interface: false)}
org.eclipse.m2m.atl.core.emf.EMFModelFactory@1972e3a
[]
org.eclipse.m2m.atl.core.emf.EMFReferenceModel@1955970


Since i'm new to all this EMF and ATL world i can't seem to figure out if the injected metamodel is correct.

Thanks,

João Vaz

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Re: ATL launch error [message #521660 is a reply to message #521651] Thu, 18 March 2010 12:31 Go to previous messageGo to next message
Vincent MAHE is currently offline Vincent MAHEFriend
Messages: 129
Registered: July 2009
Senior Member
Vaz a écrit :
> Sylvain EVEILLARD wrote on Thu, 18 March 2010 04:57
>> Looks like you're missing some dependencies. Try to add
>> org.eclipse.m2m.atl.common as a dependency.
>
> Thanks, it did really help... although now a new problem arises when
> launching the vm:
> org.eclipse.m2m.atl.engine.emfvm.VMException: Could not find model Families
>
>
> It seems that the metamodel Families isn't being loaded correctly. Just
> debugged the code, and added a watch to the Families Metamodel and i'm
> pretty much sure it isn't correct.
> To load the Families metamodel i'm using:
>
> EMFReferenceModel Metamodel1 =
> (EMFReferenceModel)factory.newReferenceModel();
> injector.inject(Metamodel1, "file:/C:/wS/BS/Families.ecore");
>
>
> And the Watch i added returned this:
>
> {org.eclipse.emf.ecore.impl.EClassImpl@dc86eb (name: EDataType)
> (instanceClassName: null) (abstract: false, interface:
> false)=[org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name: String)
> (instanceClassName: java.lang.String) (serializable: true)]}
> {org.eclipse.emf.ecore.impl.EClassImpl@1546dbc (name: EPackage)
> (instanceClassName: null) (abstract: false, interface:
> false)=[org.eclipse.emf.ecore.impl.EPackageImpl@c1186f (name: Families)
> (nsURI: Families, nsPrefix: null),
> org.eclipse.emf.ecore.impl.EPackageImpl@12b3349 (name: PrimitiveTypes)
> (nsURI: PrimitiveTypes, nsPrefix: null)],
> org.eclipse.emf.ecore.impl.EClassImpl@dc86eb (name: EDataType)
> (instanceClassName: null) (abstract: false, interface:
> false)=[org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name: String)
> (instanceClassName: java.lang.String) (serializable: true)]}
> null
> false
> {Member=org.eclipse.emf.ecore.impl.EClassImpl@6a63d3 (name: Member)
> (instanceClassName: null) (abstract: false, interface: false),
> Families::Family=org.eclipse.emf.ecore.impl.EClassImpl@b9b8d0 (name:
> Family) (instanceClassName: null) (abstract: false, interface: false),
> PrimitiveTypes::String=org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a
> (name: String) (instanceClassName: java.lang.String) (serializable:
> true), Families::Member=org.eclipse.emf.ecore.impl.EClassImpl@6a63d3
> (name: Member) (instanceClassName: null) (abstract: false, interface:
> false), String=org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name:
> String) (instanceClassName: java.lang.String) (serializable: true),
> Family=org.eclipse.emf.ecore.impl.EClassImpl@b9b8d0 (name: Family)
> (instanceClassName: null) (abstract: false, interface: false)}
> org.eclipse.m2m.atl.core.emf.EMFModelFactory@1972e3a
> []
> org.eclipse.m2m.atl.core.emf.EMFReferenceModel@1955970
>
>
> Since i'm new to all this EMF and ATL world i can't seem to figure out
> if the injected metamodel is correct.
>
Have a look in your Model using text editor to get its way to refer to
the metamodel. May be the model point out on another instance/flavour of
Families.ecore
--
Cordialement

Vincent MAHÉ

Ingénieur plate-forme - Cesar/Artemisia - Équipe Espresso
IRISA-INRIA, Campus de Beaulieu, 35042 Rennes cedex, France
Tél: +33 (0) 2 99 84 71 00, Fax: +33 (0) 2 99 84 71 71

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Re: ATL launch error [message #522389 is a reply to message #521660] Mon, 22 March 2010 14:19 Go to previous messageGo to next message
Vaz is currently offline VazFriend
Messages: 16
Registered: July 2009
Junior Member
Vincent MAHE wrote on Thu, 18 March 2010 08:31
Vaz a écrit :
> Sylvain EVEILLARD wrote on Thu, 18 March 2010 04:57
>> Looks like you're missing some dependencies. Try to add
>> org.eclipse.m2m.atl.common as a dependency.
>
> Thanks, it did really help... although now a new problem arises when
> launching the vm:
> org.eclipse.m2m.atl.engine.emfvm.VMException: Could not find model Families
>
>
> It seems that the metamodel Families isn't being loaded correctly. Just
> debugged the code, and added a watch to the Families Metamodel and i'm
> pretty much sure it isn't correct.
> To load the Families metamodel i'm using:
>
> EMFReferenceModel Metamodel1 =
> (EMFReferenceModel)factory.newReferenceModel();
> injector.inject(Metamodel1, "file:/C:/wS/BS/Families.ecore");
>
>
> And the Watch i added returned this:
>
> {org.eclipse.emf.ecore.impl.EClassImpl@dc86eb (name: EDataType)
> (instanceClassName: null) (abstract: false, interface:
> false)=[org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name: String)
> (instanceClassName: java.lang.String) (serializable: true)]}
> {org.eclipse.emf.ecore.impl.EClassImpl@1546dbc (name: EPackage)
> (instanceClassName: null) (abstract: false, interface:
> false)=[org.eclipse.emf.ecore.impl.EPackageImpl@c1186f (name: Families)
> (nsURI: Families, nsPrefix: null),
> org.eclipse.emf.ecore.impl.EPackageImpl@12b3349 (name: PrimitiveTypes)
> (nsURI: PrimitiveTypes, nsPrefix: null)],
> org.eclipse.emf.ecore.impl.EClassImpl@dc86eb (name: EDataType)
> (instanceClassName: null) (abstract: false, interface:
> false)=[org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name: String)
> (instanceClassName: java.lang.String) (serializable: true)]}
> null
> false
> {Member=org.eclipse.emf.ecore.impl.EClassImpl@6a63d3 (name: Member)
> (instanceClassName: null) (abstract: false, interface: false),
> Families::Family=org.eclipse.emf.ecore.impl.EClassImpl@b9b8d0 (name:
> Family) (instanceClassName: null) (abstract: false, interface: false),
> PrimitiveTypes::String=org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a
> (name: String) (instanceClassName: java.lang.String) (serializable:
> true), Families::Member=org.eclipse.emf.ecore.impl.EClassImpl@6a63d3
> (name: Member) (instanceClassName: null) (abstract: false, interface:
> false), String=org.eclipse.emf.ecore.impl.EDataTypeImpl@134263a (name:
> String) (instanceClassName: java.lang.String) (serializable: true),
> Family=org.eclipse.emf.ecore.impl.EClassImpl@b9b8d0 (name: Family)
> (instanceClassName: null) (abstract: false, interface: false)}
> org.eclipse.m2m.atl.core.emf.EMFModelFactory@1972e3a
> []
> org.eclipse.m2m.atl.core.emf.EMFReferenceModel@1955970
>
>
> Since i'm new to all this EMF and ATL world i can't seem to figure out
> if the injected metamodel is correct.
>
Have a look in your Model using text editor to get its way to refer to
the metamodel. May be the model point out on another instance/flavour of
Families.ecore
--
Cordialement

Vincent MAHÉ

Ingénieur plate-forme - Cesar/Artemisia - Équipe Espresso
IRISA-INRIA, Campus de Beaulieu, 35042 Rennes cedex, France
Tél: +33 (0) 2 99 84 71 00, Fax: +33 (0) 2 99 84 71 71


Hi,

Thanks for your help. After taking an intensive look at the models (and modifying them) i couldn't solve the problem, though if i had to guess i'd say I have a problem in the "sample-families.xmi" reference to the ecore model "Families".

I still get:
org.eclipse.m2m.atl.engine.emfvm.VMException: Could not find model Families


Both models are in the same directory and the used models refer to the ATL Families-Persons example.

Families.ecore:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore">
  <ecore:EPackage name="Families">
    <eClassifiers xsi:type="ecore:EClass" name="Family">
      <eStructuralFeatures xsi:type="ecore:EAttribute" name="lastName" ordered="false" unique="false" lowerBound="1" eType="/1/String"/>
      <eStructuralFeatures xsi:type="ecore:EReference" name="father" ordered="false" lowerBound="1" eType="/0/Member" containment="true" eOpposite="/0/Member/familyFather"/>
      <eStructuralFeatures xsi:type="ecore:EReference" name="mother" ordered="false" lowerBound="1" eType="/0/Member" containment="true" eOpposite="/0/Member/familyMother"/>
      <eStructuralFeatures xsi:type="ecore:EReference" name="sons" ordered="false" upperBound="-1" eType="/0/Member" containment="true" eOpposite="/0/Member/familySon"/>
      <eStructuralFeatures xsi:type="ecore:EReference" name="daughters" ordered="false" upperBound="-1" eType="/0/Member" containment="true" eOpposite="/0/Member/familyDaughter"/>
    </eClassifiers>
    <eClassifiers xsi:type="ecore:EClass" name="Member">
      <eStructuralFeatures xsi:type="ecore:EAttribute" name="firstName" ordered="false" unique="false" lowerBound="1" eType="/1/String"/>
      <eStructuralFeatures xsi:type="ecore:EReference" name="familyFather" ordered="false" eType="/0/Family" eOpposite="/0/Family/father"/>
      <eStructuralFeatures xsi:type="ecore:EReference" name="familyMother" ordered="false" eType="/0/Family" eOpposite="/0/Family/mother"/>
      <eStructuralFeatures xsi:type="ecore:EReference" name="familySon" ordered="false" eType="/0/Family" eOpposite="/0/Family/sons"/>
      <eStructuralFeatures xsi:type="ecore:EReference" name="familyDaughter" ordered="false" eType="/0/Family" eOpposite="/0/Family/daughters"/>
    </eClassifiers>
  </ecore:EPackage>
  <ecore:EPackage name="PrimitiveTypes">
    <eClassifiers xsi:type="ecore:EDataType" name="String"/>
  </ecore:EPackage>
</xmi:XMI>



And the sample-Families.xmi:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xmi:XMI xmi:version="2.0"
	xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore"
    xmlns="Families">
  <Family lastName="March">
    <father firstName="Jim"/>
    <mother firstName="Cindy"/>
    <sons firstName="Brandon"/>
    <daughters firstName="Brenda"/>
  </Family>
  <Family lastName="Sailor">
    <father firstName="Peter"/>
    <mother firstName="Jackie"/>
    <sons firstName="David"/>
    <sons firstName="Dylan"/>
    <daughters firstName="Kelly"/>
  </Family>
</xmi:XMI>


Thanks,

João Vaz

[Updated on: Mon, 22 March 2010 14:20]

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Re: ATL launch error [message #524055 is a reply to message #522389] Tue, 30 March 2010 13:36 Go to previous messageGo to next message
Vaz is currently offline VazFriend
Messages: 16
Registered: July 2009
Junior Member
Finally i understood where the error was:
// Launching
		launcher.addInModel(model1, "IN_MODEL", "IN_META"); //$NON-NLS-1$ //$NON-NLS-2$
		launcher.addOutModel(model2, "OUT_MODEL", "OUT_META"); //$NON-NLS-1$ //$NON-NLS-2$

The names of both model and metamodel were wrong and thus returning the null pointer error. Embarrassed

Thanks,
João Vaz

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Re: ATL launch error [message #524082 is a reply to message #521486] Tue, 30 March 2010 15:32 Go to previous messageGo to next message
Wim is currently offline WimFriend
Messages: 6
Registered: March 2010
Junior Member
Care to share the full working code with us? Including the imports. I'm trying to get a similar thing to work but everything fails as soon as I try to create an EMF model factory.
Thanks

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Re: ATL launch error [message #726057 is a reply to message #524082] Fri, 16 September 2011 13:34 Go to previous message
Hugo Pereira is currently offline Hugo PereiraFriend
Messages: 2
Registered: June 2011
Junior Member
The same here!

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