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/*******************************************************************************
* Copyright (c) 2005-2009 itemis AG (http://www.itemis.eu) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
*******************************************************************************/
package org.eclipse.xtend.typesystem.emf;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.impl.DynamicEObjectImpl;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.internal.xtend.type.baseimpl.OperationImpl;
import org.eclipse.internal.xtend.type.baseimpl.PropertyImpl;
import org.eclipse.xtend.expression.TypeSystem;
import org.eclipse.xtend.typesystem.AbstractTypeImpl;
import org.eclipse.xtend.typesystem.Feature;
import org.eclipse.xtend.typesystem.Type;
public class EObjectType extends AbstractTypeImpl {
public EObjectType(final TypeSystem ts) {
super(ts, "emf::EObject");
}
@Override
public String getDocumentation() {
return "base type for all ecore based metamodels (added by oAW4 emftools)";
}
@Override
public Feature[] getContributedFeatures() {
return new Feature[] {
new PropertyImpl(EObjectType.this, "eContainer",
EObjectType.this) {
public Object get(final Object target) {
return ((EObject) target).eContainer();
}
@Override
public void set(final Object target, final Object newValue) {
throw new UnsupportedOperationException();
}
},
new PropertyImpl(EObjectType.this, "eContents", getTypeSystem()
.getListType(EObjectType.this)) {
public Object get(final Object target) {
return ((EObject) target).eContents();
}
@Override
public void set(final Object target, final Object newValue) {
throw new UnsupportedOperationException();
}
},
new PropertyImpl(EObjectType.this, "eRootContainer",
EObjectType.this) {
public Object get(final Object target) {
return EcoreUtil.getRootContainer((EObject) target);
}
@Override
public void set(final Object target, final Object newValue) {
throw new UnsupportedOperationException();
}
},
new PropertyImpl(EObjectType.this, "eAllContents",
getTypeSystem().getSetType(EObjectType.this)) {
@SuppressWarnings("unchecked")
public Object get(final Object target) {
final HashSet allCont = new HashSet();
final Iterator iter = ((EObject) target).eAllContents();
while (iter.hasNext()) {
allCont.add(iter.next());
}
return allCont;
}
@Override
public void set(final Object target, final Object newValue) {
throw new UnsupportedOperationException();
}
},
new OperationImpl(EObjectType.this, "toString", getTypeSystem()
.getSetType(EObjectType.this)) {
@Override
protected Object evaluateInternal(Object target,
Object[] params) {
if (target instanceof DynamicEObjectImpl) {
return EObjectType.toString((EObject) target);
}
return target.toString();
}
} };
}
public boolean isInstance(final Object o) {
return o instanceof EObject;
}
public Object newInstance() {
throw new UnsupportedOperationException("newInstance on " + getName());
}
@Override
public Set<Type> getSuperTypes() {
return Collections.singleton(getTypeSystem().getObjectType());
}
@SuppressWarnings("unchecked")
public static StringBuffer toString(EObject x) {
if (x == null) {
return new StringBuffer("null");
}
StringBuffer buff = new StringBuffer(x.eClass().getEPackage().getName()).append("::").append(x.eClass().getName()).append("(");
Iterator<EStructuralFeature> iter = x.eClass()
.getEAllStructuralFeatures().iterator();
while (iter.hasNext()) {
EStructuralFeature f = iter.next();
if (f instanceof EAttribute) {
buff.append(f.getName()).append("=").append(x.eGet(f));
}
if (f instanceof EReference) {
Object o = x.eGet(f);
if (((EReference) f).isContainment()) {
buff.append(f.getName()).append("=").append(toString(o));
} else {
buff.append(f.getName()).append("=").append(shortString(o));
}
}
if (iter.hasNext())
buff.append(",");
}
return buff.append(")");
}
private static StringBuffer toString(Object o) {
if (o instanceof Collection) {
StringBuffer buff = new StringBuffer("{");
Iterator<?> iter = ((Collection<?>) o).iterator();
while (iter.hasNext()) {
Object x = iter.next();
if (x instanceof EObject) {
buff.append(toString((EObject) x));
} else {
buff.append("nonEMF:").append(x);
}
if (iter.hasNext())
buff.append(",");
}
buff.append("}");
return buff;
}
if (o instanceof EObject)
return toString((EObject) o);
return new StringBuffer();
}
private static String shortString(Object o) {
if (o instanceof Collection) {
StringBuffer buff = new StringBuffer("{");
for (Object x : ((Collection<?>) o)) {
if (x instanceof EObject)
buff.append(shortString((EObject) x));
}
buff.append("}");
return buff.toString();
}
if (o instanceof EObject)
return shortString((EObject) o);
return "";
}
public static String shortString(EObject x) {
if (x == null) {
return "null";
}
if (x.eClass().getEStructuralFeature("name") != null) {
return x.eGet(x.eClass().getEStructuralFeature("name")) + " : "
+ x.eClass().getName();
}
return "unnamed : " + x.eClass().getName();
}
}
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