Question

I’m trying to implement the sample code to this article from 2002 (I know..), but cannot get the schema to load.

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.xsd.util.XSDResourceImpl;      ResourceSet resourceSet = new ResourceSetImpl();     // I replaced the deprecated createDeviceURI with createURI as recommended in JavaDoc     XSDResourceImpl xsdSchemaResource =          (XSDResourceImpl)resourceSet.getResource(URI.createURI('my.xsd'), true); 

I’m using the following Maven2 dependencies:

<dependency>     <groupId>org.eclipse.xsd</groupId>     <artifactId>xsd</artifactId>     <version>2.1.1</version> </dependency> <dependency>     <groupId>org.eclipse.emf</groupId>     <artifactId>ecore</artifactId>     <version>2.1.0</version> </dependency> <dependency>     <groupId>org.eclipse.emf</groupId>     <artifactId>common</artifactId>     <version>2.1.0</version> </dependency> 

The code compiles just fine, but produces a RuntimeException at execution time:

java.lang.RuntimeException:      Cannot create a resource for 'my.xsd'; a registered resource factory is needed     at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:346) 

I found some resource factory implementations in org.eclipse.emf.ecore.xmi, but AFAIK there’s only a xmi snapshot in the public Maven repo, which has a dependency on org.eclipse.core.runtime.. which is not what I want.

Can anyone help?

Answer 1

Try adding this code before creating your ResourceSetImpl:

import org.eclipse.xsd.util.XSDResourceFactoryImpl;  Resource.Factory.Registry reg = Resource.Factory.Registry.INSTANCE; java.util.Map m = reg.getExtensionToFactoryMap(); m.put('xsd', new XSDResourceFactoryImpl()); 

That should create the registry and factory that you need to accomplish what you are trying to do.