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package org.eclipse.emf.ecore.xcore.resource;
import org.eclipse.emf.common.util.TreeIterator;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.xcore.scoping.LazyCreationProxyUriConverter;
import org.eclipse.xtext.common.types.TypesPackage;
import org.eclipse.xtext.naming.IQualifiedNameProvider;
import org.eclipse.xtext.naming.QualifiedName;
import org.eclipse.xtext.resource.IEObjectDescription;
import org.eclipse.xtext.scoping.IScope;
import org.eclipse.xtext.scoping.IScopeProvider;
import org.eclipse.xtext.util.Pair;
import org.eclipse.xtext.xbase.resource.XbaseResource;
import com.google.inject.Inject;
public class XcoreResource extends XbaseResource {
@Inject
private LazyCreationProxyUriConverter proxyConverter;
@Inject
private IQualifiedNameProvider nameProvider;
@Inject
private IScopeProvider scopeProvider;
@Override
public synchronized EObject getEObject(String uriFragment) {
Pair<EClass,QualifiedName> fragmentInfo = proxyConverter.decodeFragment(uriFragment);
if (fragmentInfo != null) {
return findEObject(fragmentInfo.getFirst(), fragmentInfo.getSecond(), uriFragment);
} else {
return super.getEObject(uriFragment);
}
}
/**
* finds the EObject of the given type and the given {@link QualifiedName}.
*
* TODO optimize
*/
protected EObject findEObject(EClass clazz, QualifiedName name, String uriFragment) {
if (clazz == TypesPackage.Literals.JVM_GENERIC_TYPE) {
IScope scope = scopeProvider.getScope(getContents().get(0), TypesPackage.Literals.JVM_PARAMETERIZED_TYPE_REFERENCE__TYPE);
final IEObjectDescription desc = scope.getSingleElement(name);
if (desc != null && !uriFragment.equals(desc.getEObjectURI().fragment()))
return desc.getEObjectOrProxy();
}
TreeIterator<EObject> iterator = EcoreUtil.getAllContents(this, false);
while (iterator.hasNext()) {
EObject candidate = iterator.next();
if (clazz.isInstance(candidate)) {
QualifiedName qualifiedName = nameProvider.getFullyQualifiedName(candidate);
if (name.equals(qualifiedName))
return candidate;
}
}
return null;
}
}
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