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Home » Modeling » M2T (model-to-text transformation) » MWE2 and xpand outside eclipse (use of xpand )
MWE2 and xpand outside eclipse [message #937659] Tue, 09 October 2012 02:41 Go to previous message
Jim Van Dam is currently offline Jim Van Dam
Messages: 38
Registered: July 2009
Member
We are trying to use mwe2 and xpand inside a gwt application, but get the following exception:

	at com.google.inject.InjectorImpl$4.get(InjectorImpl.java:767) [com.google.inject-2.0.0.jar:]
	at org.eclipse.xtext.resource.XtextResourceFactory.createResource(XtextResourceFactory.java:19) [org.eclipse.xtext-2.0.0.jar:]
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.createResource(ResourceSetImpl.java:425) [ecore-2.4.2.jar:]
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.createResource(ResourceSetImpl.java:414) [ecore-2.4.2.jar:]
	at org.eclipse.xtext.resource.SynchronizedXtextResourceSet.createResource(SynchronizedXtextResourceSet.java:30) [org.eclipse.xtext-2.0.0.jar:]
	at org.eclipse.xtext.mwe.RuntimeResourceSetInitializer.getInitializedResourceSet(RuntimeResourceSetInitializer.java:76) [org.eclipse.xtext-2.0.0.jar:]
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.findModule(Mwe2Runner.java:112) [org.eclipse.emf.mwe2.launch-2.0.0.jar:]
	at nl.infodation.emr.pricingservice.rulegeneration.MyRunner.findModule(MyRunner.java:13) [classes:]
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:77) [org.eclipse.emf.mwe2.launch-2.0.0.jar:]


Cause: com.google.inject.ProvisionException: Guice provision errors:

1) Error injecting method, java.lang.NoClassDefFoundError: org/eclipse/xtext/impl/GrammarImpl
  at org.eclipse.xtext.conversion.impl.AbstractDeclarativeValueConverterService.setGrammar(AbstractDeclarativeValueConverterService.java:50)
  while locating org.eclipse.emf.mwe2.language.Mwe2ValueConverters
  while locating org.eclipse.xtext.conversion.IValueConverterService
    for field at org.eclipse.xtext.linking.impl.LinkingHelper.valueConverter(LinkingHelper.java:31)
  while locating org.eclipse.xtext.linking.impl.LinkingHelper
    for field at org.eclipse.xtext.parsetree.reconstr.impl.CrossReferenceSerializer.linkingHelper(CrossReferenceSerializer.java:34)
  while locating org.eclipse.xtext.parsetree.reconstr.impl.CrossReferenceSerializer
  while locating org.eclipse.xtext.parsetree.reconstr.ITokenSerializer$ICrossReferenceSerializer
    for field at org.eclipse.xtext.parsetree.reconstr.impl.AbstractParseTreeConstructor.crossRefSerializer(AbstractParseTreeConstructor.java:62)
  while locating org.eclipse.emf.mwe2.language.parseTreeConstruction.Mwe2ParsetreeConstructor
  while locating org.eclipse.xtext.parsetree.reconstr.IParseTreeConstructor
    for parameter 0 at org.eclipse.xtext.parsetree.reconstr.Serializer.<init>(Serializer.java:39)
  while locating org.eclipse.xtext.parsetree.reconstr.Serializer
  while locating org.eclipse.xtext.serializer.ISerializer
    for field at org.eclipse.xtext.resource.XtextResource.serializer(XtextResource.java:349)
  while locating org.eclipse.xtext.linking.lazy.LazyLinkingResource
  while locating org.eclipse.xtext.resource.XtextResource
Caused by: java.lang.NoClassDefFoundError: org/eclipse/xtext/impl/GrammarImpl
	at org.eclipse.xtext.impl.XtextFactoryImpl.createGrammar(XtextFactoryImpl.java:100)
	at org.eclipse.xtext.impl.XtextFactoryImpl.create(XtextFactoryImpl.java:63)
	at org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.createObject(XMLHelperImpl.java:891)
	at org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.createObject(XMLHelperImpl.java:928)
	at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFactory(XMLHandler.java:2186)
	at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1330)
	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:83)
	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 org.apache.xerces.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:496)
	at org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:789)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:827)
	at org.apache.xerces.impl.XMLDocumentScannerImpl$ContentDispatcher.scanRootElementHook(XMLDocumentScannerImpl.java:1141)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1754)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:324)
	at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:845)
	at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:768)
	at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1196)
	at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:555)
	at org.apache.xerces.jaxp.SAXParserImpl.parse(SAXParserImpl.java:289)
	at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:181)
	at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:180)
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1445)
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1241)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:255)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:270)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:397)
	at org.eclipse.xtext.resource.SynchronizedXtextResourceSet.getResource(SynchronizedXtextResourceSet.java:23)
	at org.eclipse.xtext.parser.BaseEPackageAccess.loadResource(BaseEPackageAccess.java:52)
	at org.eclipse.xtext.parser.BaseEPackageAccess.loadGrammarFile(BaseEPackageAccess.java:44)
	at org.eclipse.xtext.service.GrammarProvider.getGrammar(GrammarProvider.java:49)
	at org.eclipse.emf.mwe2.language.services.Mwe2GrammarAccess.getGrammar(Mwe2GrammarAccess.java:744)
	at org.eclipse.xtext.conversion.impl.AbstractDeclarativeValueConverterService.setGrammar(AbstractDeclarativeValueConverterService.java:50)
	at $org.eclipse.xtext.conversion.impl.AbstractDeclarativeValueConverterService$$FastClassByGuice$$7fdb40ee.invoke(<generated>)
	at com.google.inject.internal.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
	at com.google.inject.SingleMethodInjector$1.invoke(SingleMethodInjector.java:59)
	at com.google.inject.SingleMethodInjector.inject(SingleMethodInjector.java:91)
	at com.google.inject.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:99)
	at com.google.inject.ConstructorInjector.construct(ConstructorInjector.java:94)
	at com.google.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:111)
	at com.google.inject.FactoryProxy.get(FactoryProxy.java:56)
	at com.google.inject.SingleFieldInjector.inject(SingleFieldInjector.java:56)
	at com.google.inject.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:99)
	at com.google.inject.ConstructorInjector.construct(ConstructorInjector.java:94)
	at com.google.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:111)
	at com.google.inject.SingleFieldInjector.inject(SingleFieldInjector.java:56)
	at com.google.inject.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:99)
	at com.google.inject.ConstructorInjector.construct(ConstructorInjector.java:94)
	at com.google.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:111)
	at com.google.inject.InjectorImpl$3.get(InjectorImpl.java:549)
	at com.google.inject.SingleFieldInjector.inject(SingleFieldInjector.java:56)
	at com.google.inject.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:99)
	at com.google.inject.ConstructorInjector.construct(ConstructorInjector.java:94)
	at com.google.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:111)
	at com.google.inject.FactoryProxy.get(FactoryProxy.java:56)
	at com.google.inject.SingleParameterInjector.inject(SingleParameterInjector.java:42)
	at com.google.inject.SingleParameterInjector.getAll(SingleParameterInjector.java:66)
	at com.google.inject.ConstructorInjector.construct(ConstructorInjector.java:84)
	at com.google.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:111)
	at com.google.inject.FactoryProxy.get(FactoryProxy.java:56)
	at com.google.inject.SingleFieldInjector.inject(SingleFieldInjector.java:56)
	at com.google.inject.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:99)
	at com.google.inject.ConstructorInjector.construct(ConstructorInjector.java:94)
	at com.google.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:111)
	at com.google.inject.FactoryProxy.get(FactoryProxy.java:56)
	at com.google.inject.InjectorImpl$4$1.call(InjectorImpl.java:758)
	at com.google.inject.InjectorImpl.callInContext(InjectorImpl.java:804)
	at com.google.inject.InjectorImpl$4.get(InjectorImpl.java:754)
	at org.eclipse.xtext.resource.XtextResourceFactory.createResource(XtextResourceFactory.java:19)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.createResource(ResourceSetImpl.java:425)
	at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.createResource(ResourceSetImpl.java:414)
	at org.eclipse.xtext.resource.SynchronizedXtextResourceSet.createResource(SynchronizedXtextResourceSet.java:30)
	at org.eclipse.xtext.mwe.RuntimeResourceSetInitializer.getInitializedResourceSet(RuntimeResourceSetInitializer.java:76)
	at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.findModule(Mwe2Runner.java:112)


The java code that calls the mwe2 workflow looks like this:
Injector i = new Mwe2StandaloneSetup().createInjectorAndDoEMFRegistration();
Mwe2Runner runner = i.getInstance(MyRunner.class);
IWorkflowContext context = new WorkflowContextImpl();
context.put("rules", rules);
context.put("targetDir", file.getParentFile().getAbsolutePath());
context.put("ruleFile", file.getName());
runner.run("workflow.GenerateRules", new HashMap<String, String>(), context);


As the GrammarImpl is in the xtext-2.0.0.jar which is obviously there looking at the call stack, it looks like it has something to do with providing the right paths to the runner so the injected provider can find everything.
Does anybody recognize this or has experience using mwe2 and xpand in a web app outside eclipse?

Jim

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