| SemanticException [message #634261] |
Wed, 20 October 2010 22:11  |
Eclipse User |
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Hi, I am having problems with OCLHelper. I have the following code which is working fine. But when I change the expression to "price > 0" I get a SemanticException. Any ideas? Thanks in advance, Eban
Class umlClass = (Class)package.getOwnedMember("Product");
Property umlProperty = umlClass.getOwnedAttribute("price", null);
OCL ocl = OCL.newInstance();
OCLHelper helper = ocl.createOCLHelper();
helper.setAttributeContext(umlProperty.getOwner(), umlProperty);
String expression = "price = 0"
OCLExpression query = helper.createQuery(expression);
org.eclipse.ocl.SemanticException: Cannot find operation (>(Integer)) for the type (null)
at org.eclipse.ocl.util.OCLUtil.checkForErrors(OCLUtil.java:352 )
at org.eclipse.ocl.util.OCLUtil.checkForErrors(OCLUtil.java:322 )
at org.eclipse.ocl.internal.helper.HelperUtil.checkForErrors(He lperUtil.java:519)
at org.eclipse.ocl.internal.helper.HelperUtil.parseQuery(Helper Util.java:165)
at org.eclipse.ocl.internal.helper.OCLHelperImpl.createQuery(OC LHelperImpl.java:175)
at org.eclipse.ocl.uml.OCLHelperImpl.createQuery(OCLHelperImpl. java:91)
at org.eclipse.ocl.uml.OCLHelperImpl.createQuery(OCLHelperImpl. java:1)
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| Re: SemanticException [message #636069 is a reply to message #636010] |
Fri, 29 October 2010 04:49  |
| Eclipse User |
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Hi Eban
Thanks for the excellent repro.
The confusion is that = should fail too. In fact both should be
diagnosed as an unresolved proxy
(https://bugs.eclipse.org/bugs/show_bug.cgi?id=329011) because you have
omitted the required initialisation of UML pathmaps. This is awkward, so
OCL provides a helper.
You need to add:
String reason = OCL.initialize(resourceSet);
TestCase.assertNull("Initialization failed : " + reason, reason);
which will then give you some failures that will prompt you to add
-Dorg.eclipse.ocl.uml=${resource_loc:/org.eclipse.ocl.uml}
-Dorg.eclipse.uml2.uml.resources=${resource_loc:/org.eclipse .uml2.uml.resources}
to your launch configuration and to load
org.eclipse.ocl.uml
org.eclipse.uml2.uml.resources
into your workspace, since the standalone EMF support cannot extract UML
models from
plugin ZIP files.
Regards
Ed Willink
On 28/10/2010 23:38, Eban Escott wrote:
> Hi Ed,
>
> I wish a had a fix to the problem and I do apologise if I have not
> supplied enough information as I am new to OCL and still finding my feet.
>
> Here is the isolated UML model and if you name it MyModel.uml and run
> the JUnit test you it will give you the exception.
>
> Cheers
> Eban
>
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xmi:XMI xmi:version="2.1"
> xmlns:xmi="http://schema.omg.org/spec/XMI/2.1"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore"
> xmlns:profileM="http:///schemas/profileM/_bYwRQKwKEd6_R4nwdX_sDQ/0"
> xmlns:uml="http://www.eclipse.org/uml2/3.0.0/UML"
> xmlns:validation="http:///schemas/validation/_LIcqENZpEd-pV_SeKY8DIg/10"
> xsi:schemaLocation="http:///schemas/profileM/_bYwRQKwKEd6_R4nwdX_sDQ/0
> ../../Profile/model/profileM.profile.uml#_bYxfYKwKEd6_R4nwdX _sDQ
> http:///schemas/validation/_LIcqENZpEd-pV_SeKY8DIg/10
> ../../Profile/model/validation.profile.uml#_LIdRINZpEd-pV_Se KY8DIg ">
> <uml:Package xmi:id="_Rl0wAHTSEd6tw7FQB0T26Q" name="MyPackage">
> <elementImport xmi:id="_RrcP0HTSEd6tw7FQB0T26Q">
> <importedElement xmi:type="uml:PrimitiveType"
> href=" pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#Boolea n"/>
> </elementImport>
> <elementImport xmi:id="_RrqSQHTSEd6tw7FQB0T26Q">
> <importedElement xmi:type="uml:PrimitiveType"
> href=" pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#String"/>
> </elementImport>
> <elementImport xmi:id="_RrqSQXTSEd6tw7FQB0T26Q">
> <importedElement xmi:type="uml:PrimitiveType"
> href=" pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#Unlimi tedNatural"/>
> </elementImport>
> <elementImport xmi:id="_RrqSQnTSEd6tw7FQB0T26Q">
> <importedElement xmi:type="uml:PrimitiveType"
> href=" pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#Intege r"/>
> </elementImport>
> <packagedElement xmi:type="uml:Class" xmi:id="_TxO3oHTSEd6tw7FQB0T26Q"
> name="Product">
> <ownedAttribute xmi:id="_QKQ5EH8nEd6YbOsakxhBTg" name="id"
> aggregation="composite">
> <type xmi:type="uml:PrimitiveType"
> href=" pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#Intege r"/>
> </ownedAttribute>
> <ownedAttribute xmi:id="_QciWUIeiEd6G9vv1xOexfw" name="name"
> aggregation="composite">
> <type xmi:type="uml:PrimitiveType"
> href=" pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#String"/>
> </ownedAttribute>
> <ownedAttribute xmi:id="_YePi8IeiEd6G9vv1xOexfw" name="price"
> aggregation="composite">
> <type xmi:type="uml:PrimitiveType"
> href=" pathmap://UML_LIBRARIES/UMLPrimitiveTypes.library.uml#Intege r"/>
> </ownedAttribute>
> </packagedElement>
> </uml:Package>
> </xmi:XMI>
>
>
>
> package transform.ocl;
>
> import java.io.File;
> import java.io.IOException;
>
> import junit.framework.Assert;
>
> import org.eclipse.emf.common.util.URI;
> import org.eclipse.emf.ecore.resource.Resource;
> import org.eclipse.emf.ecore.resource.ResourceSet;
> import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
> import org.eclipse.ocl.expressions.OCLExpression;
> import org.eclipse.ocl.helper.OCLHelper;
> import org.eclipse.ocl.uml.OCL;
> import org.eclipse.uml2.uml.Class;
> import org.eclipse.uml2.uml.Classifier;
> import org.eclipse.uml2.uml.Operation;
> import org.eclipse.uml2.uml.Package;
> import org.eclipse.uml2.uml.Property;
> import org.eclipse.uml2.uml.UMLPackage;
> import org.eclipse.uml2.uml.resource.UMLResource;
> import org.junit.Test;
>
> import transform.utils.TransformationUtils;
>
> public class IsolationForEdTest {
>
> @Test
> public void ocl1() {
> try {
> Package umlPackage = loadModel();
> Class umlClass = (Class)umlPackage.getOwnedMember("Product");
> Property umlProperty = umlClass.getOwnedAttribute("price",
> null);
>
> OCL ocl = OCL.newInstance();
> OCLHelper helper = ocl.createOCLHelper();
> helper.setAttributeContext(umlProperty.getOwner(),
> umlProperty);
> OCLExpression query = helper.createQuery("price > 0");
> } catch (Exception e) {
> e.printStackTrace();
> Assert.assertTrue(false);
> }
> }
>
> private Package loadModel() throws IOException {
> ResourceSet resourceSet = new ResourceSetImpl();
> resourceSet.getPackageRegistry().put(UMLPackage.eNS_URI,
> UMLPackage.eINSTANCE);
>
> Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap( ).put(UMLResource.FILE_EXTENSION,
> UMLResource.Factory.INSTANCE);
>
> File file = new File("MyModel.uml");
> if(!file.exists()) {
> System.out.println("Cannot find file.");
> } else {
> System.out.println("Found " + file.getCanonicalPath());
> }
>
> URI uri = URI.createFileURI(file.getCanonicalPath());
> Resource resource = resourceSet.getResource(uri, true);
> Package inputPackage = (Package)resource.getContents().get(0);
>
> return inputPackage;
> }
> }
>
>
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