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NoSuchElementException when appending refining trace to sequence [message #989204]

Wed, 05 December 2012 08:47

Andreas Brieg

Messages: 48
Registered: November 2012

Member

I have an ecore model where a lot of classes have 3 attributes for audit information. I want to replace these 3 attributes with a reference to a class that contains all those attributes. That class is contained in another ecore model.

Therefore I wrote the following transformation:

-- @atlcompiler atl2010
-- @nsURI ECore=http://www.eclipse.org/emf/2002/Ecore


module refactorAuditInfo;
create output: ECore refining input: ECore, additional: ECore;

rule addReferenceToAudit {
	from
	    input : ECore!EClass (
	    	input.eStructuralFeatures -> exists(e | e.isAuditInfoFeature())
	    )
	to  
		auditInfoReference : ECore!EReference (
			eContainingClass <- input,
			eType <- input.refImmediateComposite().auditClassifier(),
			name <- 'audit',
			eReferenceType <- input.refImmediateComposite().auditClassifier().debug()
		),
	    outputClass : ECore!EClass (
	    	eStructuralFeatures <- input.eStructuralFeatures.append(auditInfoReference.debug())
	    )
}

helper context ECore!EPackage def : auditClassifier() : OclAny = 
	thisModule.additionalDbadm.eClassifiers -> select(e | e.name = 'Audit').first();

helper def : additionalDbadm : ECore!EPackage = 
	ECore!EPackage.allInstances()->select(e | e.nsURI = 'http://additional.dbadm/1.0').first();


helper context ECore!EStructuralFeature def : isAuditInfoFeature() : Boolean = 
	Sequence{'beDat', 'beUser', 'beRolle'}.contains(self.name);

However I get a NoSuchElementException when I execute that transformation. The output is:

additional!Audit
refiningTrace!<unnamed>
org.eclipse.m2m.atl.engine.emfvm.VMException
	at __resolve__#13(refactorAuditInfo.atl)
		local variables: self=refactorAuditInfo : ASMModule, value=input!beDat
	at __resolve__#26(refactorAuditInfo.atl)
		local variables: self=refactorAuditInfo : ASMModule, value=Sequence {input!***, input!***, input!***, input!***, input!***, input!***, input!***, input!***, input!***, input!***, input!***, input!***, refiningTrace!<unnamed>}, e=input!beDat
	at __applyaddReferenceToAudit#56(refactorAuditInfo.atl[30:7-30:90])
		local variables: self=refactorAuditInfo : ASMModule, link=TransientLink {rule = addReferenceToAudit, sourceElements = {input = org.eclipse.emf.ecore.impl.EClassImpl@209933c3 (name: ***) (instanceClassName: null) (abstract: false, interface: false)}, targetElements = {auditInfoReference = org.eclipse.emf.ecore.impl.DynamicEObjectImpl@483d42d (eClass: org.eclipse.emf.ecore.impl.EClassImpl@56cb4b5d (name: Element) (instanceClassName: null) (abstract: false, interface: false)), outputClass = org.eclipse.emf.ecore.impl.DynamicEObjectImpl@6aded8ab (eClass: org.eclipse.emf.ecore.impl.EClassImpl@56cb4b5d (name: Element) (instanceClassName: null) (abstract: false, interface: false))}, variables = {}}, input=input!***, auditInfoReference=refiningTrace!<unnamed>, outputClass=refiningTrace!<unnamed>
	at __exec__#18(refactorAuditInfo.atl)
		local variables: self=refactorAuditInfo : ASMModule, e=TransientLink {rule = addReferenceToAudit, sourceElements = {input = org.eclipse.emf.ecore.impl.EClassImpl@209933c3 (name: ***) (instanceClassName: null) (abstract: false, interface: false)}, targetElements = {auditInfoReference = org.eclipse.emf.ecore.impl.DynamicEObjectImpl@483d42d (eClass: org.eclipse.emf.ecore.impl.EClassImpl@56cb4b5d (name: Element) (instanceClassName: null) (abstract: false, interface: false)), outputClass = org.eclipse.emf.ecore.impl.DynamicEObjectImpl@6aded8ab (eClass: org.eclipse.emf.ecore.impl.EClassImpl@56cb4b5d (name: Element) (instanceClassName: null) (abstract: false, interface: false))}, variables = {}}
	at main#57(refactorAuditInfo.atl)
		local variables: self=refactorAuditInfo : ASMModule
Java Stack:
org.eclipse.m2m.atl.engine.emfvm.VMException
	at org.eclipse.m2m.atl.engine.emfvm.ASMOperation.exec(ASMOperation.java:643)
	at org.eclipse.m2m.atl.engine.emfvm.ASMOperation.exec(ASMOperation.java:388)
	at org.eclipse.m2m.atl.engine.emfvm.ASMOperation.exec(ASMOperation.java:388)
	at org.eclipse.m2m.atl.engine.emfvm.ASMOperation.exec(ASMOperation.java:388)
	at org.eclipse.m2m.atl.engine.emfvm.ASMOperation.exec(ASMOperation.java:388)
	at org.eclipse.m2m.atl.engine.emfvm.ASM.run(ASM.java:208)
	at org.eclipse.m2m.atl.engine.emfvm.launch.EMFVMLauncher.internalLaunch(EMFVMLauncher.java:170)
	at org.eclipse.m2m.atl.engine.emfvm.launch.EMFVMUILauncher.launch(EMFVMUILauncher.java:46)
	at org.eclipse.m2m.atl.core.service.LauncherService.launch(LauncherService.java:136)
	at org.eclipse.m2m.atl.core.ui.launch.AtlLaunchConfigurationDelegate.launchOrDebug(AtlLaunchConfigurationDelegate.java:300)
	at org.eclipse.m2m.atl.core.ui.launch.AtlLaunchConfigurationDelegate.launch(AtlLaunchConfigurationDelegate.java:234)
	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:855)
	at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:704)
	at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1047)
	at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1251)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: java.util.NoSuchElementException
	at java.util.ArrayList$Itr.next(Unknown Source)
	at org.eclipse.m2m.atl.engine.emfvm.lib.ExecEnv$173.exec(ExecEnv.java:1683)
	at org.eclipse.m2m.atl.engine.emfvm.ASMOperation.exec(ASMOperation.java:391)
	... 15 more

The NoSuchElementException is raised during execution of the line

eStructuralFeatures <- input.eStructuralFeatures.append(auditInfoReference.debug())

Note that the line information of the ATL stack is not matching the correct line in the above ATL transformation, because I left out some other stuff.

I'm using Juno with ATL 3.3.1. Does anyone know, why this exception is raised and what I'm doing wrong? Thanks

[Updated on: Wed, 05 December 2012 08:49]

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Re: NoSuchElementException when appending refining trace to sequence [message #989210 is a reply to message #989204]

Wed, 05 December 2012 09:04

Sylvain EVEILLARD

Messages: 556
Registered: July 2009

Senior Member

In refining the first "to" element is always the "from" element.
Just place outputClass before auditInfoReference in the "to" section and it will work.

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Re: NoSuchElementException when appending refining trace to sequence [message #989247 is a reply to message #989210]

Wed, 05 December 2012 10:51

Andreas Brieg

Messages: 48
Registered: November 2012

Member

I have tried that, but it doesn't work. I get the same error message and stack trace, except that the auditInfoReference element isn't executed.

Any more ideas?

[Updated on: Wed, 05 December 2012 10:55]

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Re: NoSuchElementException when appending refining trace to sequence [message #989255 is a reply to message #989247]

Wed, 05 December 2012 11:20

Sylvain EVEILLARD

Messages: 556
Registered: July 2009

Senior Member

Have you tried eStructuralFeatures <- auditInfoReference directly ?
The existing eStructuralFeatures are already copied because of the refining type of this transformation.
So eStructuralFeatures <- auditInfoReference will add auditInfoReference to the existing list.

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Re: NoSuchElementException when appending refining trace to sequence [message #989271 is a reply to message #989255]

Wed, 05 December 2012 12:54

Andreas Brieg

Messages: 48
Registered: November 2012

Member

I found the solution for the NoSuchElementException. When i change the VM the transformation is running in to the regular VM, then I get the error message

org.eclipse.m2m.atl.engine.vm.VMException: Could not find operation contains on Sequence(OclAny) having supertypes: [Collection(OclAny)]
	at MECore!EStructuralFeature;.isAuditInfoFeature() : ??#11(refactorAuditInfo.atl[37:2-37:60])
		local variables = {self=input!betId}
		local stack = []

So the line

Sequence{'beDat', 'beUser', 'beRolle'}.contains(self.name);

must be rewritten to

Sequence{'beDat', 'beUser', 'beRolle'}->includes(self.name);

Thanks for your help Sylvain.

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