Create GMFResource if default/gernic domain does not exist and resour…

plugins/org.yakindu.sct.model.resource/src/org/yakindu/sct/model/resource/SCTResourceFactory.java

@@ -13,26 +13,33 @@
 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.URIConverter;
 import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
 import org.eclipse.emf.ecore.xmi.impl.XMIResourceFactoryImpl;
+import org.eclipse.gmf.runtime.emf.core.resources.GMFResource;
 import org.yakindu.sct.domain.extension.DomainRegistry;
 import org.yakindu.sct.domain.extension.IDomainDescriptor;
 
 import com.google.inject.Injector;
 
 /**
- * 
  * @author andreas muelder - Initial contribution and API
- * 
  */
 public class SCTResourceFactory extends XMIResourceFactoryImpl {
 
 	@Override
 	public Resource createResource(URI uri) {
+
+		// if file is not existing, AND no generic/default domain is available, resource creation will fail
+		if (!URIConverter.INSTANCE.exists(uri, null)) {
+			return new GMFResource(uri);
+		}
+
 		String determinedDomainID = DomainRegistry.determineDomainID(uri);
 		IDomainDescriptor domainDescriptor = DomainRegistry.getDomainDescriptor(determinedDomainID);
 		Injector injector = domainDescriptor.getDomainInjectorProvider().getResourceInjector();
 		Resource resource = injector.getInstance(Resource.class);
+
 		ResourceSet set = new ResourceSetImpl();
 		set.getResources().add(resource);
 		resource.setURI(uri);