I'm refining an ecore model, so that classes will have an additional reference in their structural features and have some of their attributes dropped. The transformation is this:
-- @atlcompiler atl2010
-- @nsURI ECore=http://www.eclipse.org/emf/2002/Ecore
module refactorAuditInfo;
create output: ECore refining input: ECore, additional: ECore;
rule removeAuditInfoFeatures {
from
input_name: ECore!EAttribute (
input_name.isAuditInfoAttribute()
)
to
drop
}
rule addReferenceToAudit {
from
input: ECore!EClass (
input.eStructuralFeatures -> exists(e | e.isAuditInfoAttribute())
)
to
outputClass: ECore!EClass (
eStructuralFeatures <- auditInfoReference
),
auditInfoReference: ECore!EReference (
eType <- thisModule.auditClassifier,
name <- 'audit'
)
}
helper def: additionalDbadm: ECore!EPackage =
ECore!EPackage.allInstances() -> select(e | e.nsURI = 'http://additional.dbadm/1.0').
first();
helper def: auditClassifier: ECore!EClass =
thisModule.additionalDbadm.eClassifiers -> select(e | e.name = 'Audit').first();
helper context ECore!EStructuralFeature def: isAuditInfoAttribute(): Boolean =
false;
helper context ECore!EAttribute def: isAuditInfoAttribute(): Boolean =
Sequence{'beDat',
'beUser',
'beRolle'} -> includes(self.name);
When I run the transformation, I get
org.eclipse.m2m.atl.engine.vm.VMException: Feature sourceElement does not exist on MOF!EAttribute
at A.__applyRefiningTrace__() : ??#58(refactorAuditInfo.atl)
local variables = {self=refactorAuditInfo : ASMModule}
local stack = [refiningTrace!<unnamed>]
The problem has something to do with the drop of some of the features. However, I have no idea what I must do about it.
I already read this topic, which describes a similar problem. But as far as I understand I should already have followed the advice made their.
Does anybody has some advice for me to solve that problem? Thanks.
EDIT:
The above error message was with the regular VM. When I change to the EMF-specific VM, then I get:
org.eclipse.m2m.atl.engine.emfvm.VMException
at __applyRefiningTrace__#47(refactorAuditInfo.atl)
local variables: self=refactorAuditInfo : ASMModule
at main#79(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.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.lang.ArrayIndexOutOfBoundsException
Sadly, I don't see the trace where the ArrayIndexOutOfBoundsException comes from.
EDIT2:
The ArrayIndexOutOfBoundsException comes from the fact that the stack size is limited to 100 in the EMF-specific VM. I detected this by enabling the option Print execution information to console for every executed bytecode. The last output of that before the error had a stack depth of 100.
EDIT3:
I also get that error with a reduced transformation on the regular VM. Then it looks like this:
-- @atlcompiler atl2010
-- @nsURI ECore=http://www.eclipse.org/emf/2002/Ecore
module refactorAuditInfo;
create output: ECore refining input: ECore;
rule removeAuditInfoFeatures {
from
input_name: ECore!EAttribute (
input_name.isAuditInfoAttribute()
)
to
drop
}
helper context ECore!EAttribute def: isAuditInfoAttribute(): Boolean =
Sequence{'beDat',
'beUser',
'beRolle'} -> includes(self.name);
However when I use the EMF-specific VM, the transformation runs through. That means I'm stuck between two errors. Either the regular VM is failing because of the said error or the EMF-specific VM is failing because of its limited stack size.
As a workaround I'm going to split this up into two transformations that will run subsequently.
[Updated on: Wed, 05 December 2012 15:11]
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