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package org.eclipse.emf.ecore.xcore.mappings;
import org.eclipse.emf.codegen.ecore.genmodel.GenBase;
import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.ecore.EModelElement;
import org.eclipse.emf.ecore.ENamedElement;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.xcore.XClass;
import org.eclipse.emf.ecore.xcore.XDataType;
import org.eclipse.emf.ecore.xcore.XNamedElement;
import org.eclipse.emf.ecore.xcore.XOperation;
import org.eclipse.emf.ecore.xcore.XPackage;
import org.eclipse.emf.ecore.xcore.XStructuralFeature;
public class XcoreMapper
{
public XClass getXClass(EObject element) {
return (XClass) getXcoreElement(element);
}
public XOperation getXOperation(EObject element) {
return (XOperation) getXcoreElement(element);
}
public XStructuralFeature getXFeature(EObject element) {
return (XStructuralFeature) getXcoreElement(element);
}
public XPackageMapping getMapping(XPackage aPackage) {
return lazyCreateMapping(aPackage, XPackageMapping.class);
}
public XClassMapping getMapping(XClass clazz) {
return lazyCreateMapping(clazz, XClassMapping.class);
}
public XFeatureMapping getMapping(XStructuralFeature feature) {
return lazyCreateMapping(feature, XFeatureMapping.class);
}
public XOperationMapping getMapping(XOperation feature) {
return lazyCreateMapping(feature, XOperationMapping.class);
}
public XDataTypeMapping getMapping(XDataType derivedElement) {
return lazyCreateMapping(derivedElement, XDataTypeMapping.class);
}
public ToXcoreMapping getToXcoreMapping(EObject derivedElement) {
return lazyCreateMapping(derivedElement, ToXcoreMapping.class);
}
public ENamedElement getEcore(XNamedElement namedElement) {
if (namedElement instanceof XPackage) {
return getMapping((XPackage)namedElement).getEPackage();
} else if (namedElement instanceof XClass) {
return getMapping((XClass)namedElement).getEclass();
} else if (namedElement instanceof XDataType) {
return getMapping((XDataType)namedElement).getEDataType();
} else if (namedElement instanceof XStructuralFeature) {
return getMapping((XStructuralFeature)namedElement).getEStructuralFeature();
} else if (namedElement instanceof XOperation) {
return getMapping((XOperation)namedElement).getEOperation();
}
return null;
}
public GenBase getGen(XNamedElement namedElement) {
if (namedElement instanceof XPackage) {
return getMapping((XPackage)namedElement).getGenPackage();
} else if (namedElement instanceof XClass) {
return getMapping((XClass)namedElement).getGenClass();
} else if (namedElement instanceof XDataType) {
return getMapping((XDataType)namedElement).getGenDataType();
} else if (namedElement instanceof XStructuralFeature) {
return getMapping((XStructuralFeature)namedElement).getGenFeature();
} else if (namedElement instanceof XOperation) {
return getMapping((XOperation)namedElement).getGenOperation();
}
return null;
}
@SuppressWarnings("unchecked")
protected <T extends Adapter> T lazyCreateMapping(EObject object, Class<T> mapperType)
{
if (object == null)
throw new NullPointerException("object");
if (mapperType == null)
throw new NullPointerException("mapperType");
T adapter = (T) EcoreUtil.getAdapter(object.eAdapters(), mapperType);
if (adapter == null) {
try
{
adapter = mapperType.newInstance();
object.eAdapters().add(adapter);
} catch (Exception e)
{
throw new RuntimeException(e);
}
}
return adapter;
}
protected EObject getXcoreElement(EObject object) {
ToXcoreMapping adapter = (ToXcoreMapping) EcoreUtil.getAdapter(object.eAdapters(), ToXcoreMapping.class);
if (adapter != null)
return adapter.getXcoreElement();
return null;
}
}
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