| [ATL] No type named 'Root' in metamodel [message #869372] |
Thu, 03 May 2012 09:57 |
 Tex Iano
Messages: 99
Registered: February 2012 |
Member |
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Hi,
I am trying to perform an ATL transformation directly within a java application. The strange thing is, when I use XMLInjector zu load the input XML file, I get this error:
No type named 'Root' in metamodel 'MY'
java.lang.NullPointerException
at org.eclipse.m2m.atl.drivers.emf4atl.ASMEMFModel.newModelElement(ASMEMFModel.java:281)
at org.eclipse.m2m.atl.engine.vm.nativelib.ASMModel.newModelElement(ASMModel.java:81)
at org.eclipse.m2m.atl.engine.vm.nativelib.ASMModel.newModelElement(ASMModel.java:68)
at org.eclipse.m2m.atl.engine.injectors.xml.XMLInjector.startElement(XMLInjector.java:170)
at org.eclipse.m2m.atl.engine.injectors.xml.ProtectedHandler.startElement(ProtectedHandler.java:49)
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 javax.xml.parsers.SAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at org.eclipse.m2m.atl.engine.injectors.xml.XMLInjector.performImportation(XMLInjector.java:106)
at org.eclipse.m2m.atl.engine.injectors.xml.XMLInjector.inject(XMLInjector.java:89)
at Transformation.main(Transformation.java:139)
No type named 'Text' in metamodel 'MY'
java.lang.NullPointerException
at org.eclipse.m2m.atl.drivers.emf4atl.ASMEMFModel.newModelElement(ASMEMFModel.java:281)
at org.eclipse.m2m.atl.engine.vm.nativelib.ASMModel.newModelElement(ASMModel.java:81)
at org.eclipse.m2m.atl.engine.vm.nativelib.ASMModel.newModelElement(ASMModel.java:68)
at org.eclipse.m2m.atl.engine.injectors.xml.XMLInjector.characters(XMLInjector.java:132)
at org.eclipse.m2m.atl.engine.injectors.xml.ProtectedHandler.characters(ProtectedHandler.java:40)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.characters(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 javax.xml.parsers.SAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at org.eclipse.m2m.atl.engine.injectors.xml.XMLInjector.performImportation(XMLInjector.java:106)
at org.eclipse.m2m.atl.engine.injectors.xml.XMLInjector.inject(XMLInjector.java:89)
at Transformation.main(Transformation.java:139)
No type named 'Text' in metamodel 'MY'
java.lang.NullPointerException
"MY" is my own Metamodel for the XML file. The funny thing is: In the model there is neither a element called "Root" or an element called "Text". These types are not part of the metamodel because they are not meant to be there. And in the model they are neither. So, why does ATL talk about Text and Root elements?  Any ideas?
Regards,
Tex
Edit:
XMLInjector xmli = new XMLInjector();
try {
inputModel = mh.createModelLoader().newModel("IN", inputModelUrl.getFile(), myMetaModel);
in = new FileInputStream(inputModelUrl.getFile());
/*int c;
while((c = in.read()) > 0) {
System.out.print((char)c);
}*/
xmli.inject(inputModel, in, parameters); // Do injection !
} catch(Exception e) {
System.out.println(e);
}
This is, where the error occurs. The line: xmli.inject.
I used the commented section to check, whether the read file is correct and no, there is no Text or Root element
[Updated on: Thu, 03 May 2012 10:05] Report message to a moderator |
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