/*******************************************************************************
* Copyright (c) 2008-2011 Chair for Applied Software Engineering,
* Technische Universitaet Muenchen.
* 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
*
* Contributors:
******************************************************************************/
package org.eclipse.emf.emfstore.internal.server.model.versioning.operations.impl;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.emf.emfstore.internal.common.model.IdEObjectCollection;
import org.eclipse.emf.emfstore.internal.common.model.ModelElementId;
import org.eclipse.emf.emfstore.internal.common.model.impl.IdEObjectCollectionImpl;
import org.eclipse.emf.emfstore.internal.common.model.util.ModelUtil;
import org.eclipse.emf.emfstore.internal.server.model.versioning.operations.AbstractOperation;
import org.eclipse.emf.emfstore.internal.server.model.versioning.operations.MultiReferenceOperation;
import org.eclipse.emf.emfstore.internal.server.model.versioning.operations.OperationsFactory;
import org.eclipse.emf.emfstore.internal.server.model.versioning.operations.OperationsPackage;
import org.eclipse.emf.emfstore.internal.server.model.versioning.operations.UnkownFeatureException;
import org.eclipse.emf.emfstore.internal.server.model.versioning.operations.UnsetType;
/**
* <!-- begin-user-doc --> An implementation of the model object ' <em><b>Multi Reference Operation</b></em>'. <!--
* end-user-doc -->
* <p>
* The following features are implemented:
* <ul>
* <li>
* {@link org.eclipse.emf.emfstore.internal.server.model.versioning.operations.impl.MultiReferenceOperationImpl#isAdd
* <em>Add</em>}</li>
* <li>
* {@link org.eclipse.emf.emfstore.internal.server.model.versioning.operations.impl.MultiReferenceOperationImpl#getIndex
* <em>Index</em>}</li>
* <li>
* {@link org.eclipse.emf.emfstore.internal.server.model.versioning.operations.impl.MultiReferenceOperationImpl#getReferencedModelElements
* <em>Referenced Model Elements</em>}</li>
* </ul>
* </p>
*
* @generated
*/
public class MultiReferenceOperationImpl extends ReferenceOperationImpl implements MultiReferenceOperation {
/**
* The default value of the '{@link #isAdd() <em>Add</em>}' attribute. <!--
* begin-user-doc --> <!-- end-user-doc -->
*
* @see #isAdd()
* @generated
* @ordered
*/
protected static final boolean ADD_EDEFAULT = false;
/**
* The cached value of the '{@link #isAdd() <em>Add</em>}' attribute. <!--
* begin-user-doc --> <!-- end-user-doc -->
*
* @see #isAdd()
* @generated
* @ordered
*/
protected boolean add = ADD_EDEFAULT;
/**
* The default value of the '{@link #getIndex() <em>Index</em>}' attribute.
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @see #getIndex()
* @generated
* @ordered
*/
protected static final int INDEX_EDEFAULT = 0;
/**
* The cached value of the '{@link #getIndex() <em>Index</em>}' attribute.
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @see #getIndex()
* @generated
* @ordered
*/
protected int index = INDEX_EDEFAULT;
/**
* The cached value of the '{@link #getReferencedModelElements()
* <em>Referenced Model Elements</em>}' containment reference list. <!--
* begin-user-doc --> <!-- end-user-doc -->
*
* @see #getReferencedModelElements()
* @generated
* @ordered
*/
protected EList<ModelElementId> referencedModelElements;
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
protected MultiReferenceOperationImpl() {
super();
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
@Override
protected EClass eStaticClass() {
return OperationsPackage.Literals.MULTI_REFERENCE_OPERATION;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
public boolean isAdd() {
return add;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
public void setAdd(boolean newAdd) {
final boolean oldAdd = add;
add = newAdd;
if (eNotificationRequired()) {
eNotify(new ENotificationImpl(this, Notification.SET, OperationsPackage.MULTI_REFERENCE_OPERATION__ADD,
oldAdd, add));
}
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
public int getIndex() {
return index;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
public void setIndex(int newIndex) {
final int oldIndex = index;
index = newIndex;
if (eNotificationRequired()) {
eNotify(new ENotificationImpl(this, Notification.SET, OperationsPackage.MULTI_REFERENCE_OPERATION__INDEX,
oldIndex, index));
}
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
public EList<ModelElementId> getReferencedModelElements() {
if (referencedModelElements == null) {
referencedModelElements = new EObjectContainmentEList.Resolving<ModelElementId>(ModelElementId.class, this,
OperationsPackage.MULTI_REFERENCE_OPERATION__REFERENCED_MODEL_ELEMENTS);
}
return referencedModelElements;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
@Override
public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
switch (featureID) {
case OperationsPackage.MULTI_REFERENCE_OPERATION__REFERENCED_MODEL_ELEMENTS:
return ((InternalEList<?>) getReferencedModelElements()).basicRemove(otherEnd, msgs);
}
return super.eInverseRemove(otherEnd, featureID, msgs);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
@Override
public Object eGet(int featureID, boolean resolve, boolean coreType) {
switch (featureID) {
case OperationsPackage.MULTI_REFERENCE_OPERATION__ADD:
return isAdd();
case OperationsPackage.MULTI_REFERENCE_OPERATION__INDEX:
return getIndex();
case OperationsPackage.MULTI_REFERENCE_OPERATION__REFERENCED_MODEL_ELEMENTS:
return getReferencedModelElements();
}
return super.eGet(featureID, resolve, coreType);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
@SuppressWarnings("unchecked")
@Override
public void eSet(int featureID, Object newValue) {
switch (featureID) {
case OperationsPackage.MULTI_REFERENCE_OPERATION__ADD:
setAdd((Boolean) newValue);
return;
case OperationsPackage.MULTI_REFERENCE_OPERATION__INDEX:
setIndex((Integer) newValue);
return;
case OperationsPackage.MULTI_REFERENCE_OPERATION__REFERENCED_MODEL_ELEMENTS:
getReferencedModelElements().clear();
getReferencedModelElements().addAll((Collection<? extends ModelElementId>) newValue);
return;
}
super.eSet(featureID, newValue);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
@Override
public void eUnset(int featureID) {
switch (featureID) {
case OperationsPackage.MULTI_REFERENCE_OPERATION__ADD:
setAdd(ADD_EDEFAULT);
return;
case OperationsPackage.MULTI_REFERENCE_OPERATION__INDEX:
setIndex(INDEX_EDEFAULT);
return;
case OperationsPackage.MULTI_REFERENCE_OPERATION__REFERENCED_MODEL_ELEMENTS:
getReferencedModelElements().clear();
return;
}
super.eUnset(featureID);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
@Override
public boolean eIsSet(int featureID) {
switch (featureID) {
case OperationsPackage.MULTI_REFERENCE_OPERATION__ADD:
return add != ADD_EDEFAULT;
case OperationsPackage.MULTI_REFERENCE_OPERATION__INDEX:
return index != INDEX_EDEFAULT;
case OperationsPackage.MULTI_REFERENCE_OPERATION__REFERENCED_MODEL_ELEMENTS:
return referencedModelElements != null && !referencedModelElements.isEmpty();
}
return super.eIsSet(featureID);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
*
* @generated
*/
@Override
public String toString() {
if (eIsProxy()) {
return super.toString();
}
final StringBuffer result = new StringBuffer(super.toString());
result.append(" (add: "); //$NON-NLS-1$
result.append(add);
result.append(", index: "); //$NON-NLS-1$
result.append(index);
result.append(')');
return result.toString();
}
public void apply(IdEObjectCollection project) {
final EObject modelElement = project.getModelElement(getModelElementId());
if (modelElement == null) {
// fail silently
return;
}
final Map<EObject, ModelElementId> allocatables = new LinkedHashMap<EObject, ModelElementId>();
final EList<ModelElementId> referencedModelElementIds = getReferencedModelElements();
final List<EObject> referencedModelElements = new ArrayList<EObject>();
for (final ModelElementId refrencedModelElementId : referencedModelElementIds) {
EObject referencedModelElement = project.getModelElement(refrencedModelElementId);
if (referencedModelElement == null) {
referencedModelElement = ((IdEObjectCollectionImpl) project)
.getDeletedModelElement(refrencedModelElementId);
}
if (referencedModelElement != null) {
referencedModelElements.add(referencedModelElement);
allocatables.put(referencedModelElement, refrencedModelElementId);
}
}
EReference reference;
try {
reference = (EReference) this.getFeature(modelElement);
} catch (final UnkownFeatureException e) {
// fail silently
return;
}
final Object object = modelElement.eGet(reference);
@SuppressWarnings("unchecked")
final EList<EObject> list = (EList<EObject>) object;
switch (getUnset().getValue()) {
case UnsetType.IS_UNSET_VALUE:
modelElement.eUnset(reference);
// Fall-through because we only want to set the unset-flag of the list. The reference itself shall be
// treated as before. If no fall-through the reference will always be removed from the project by unset,
// but
// this is not intended.
// $FALL-THROUGH$
case UnsetType.NONE_VALUE:
case UnsetType.WAS_UNSET_VALUE:
if (isAdd()) {
if (index < list.size() && index > -1) {
int i = index;
for (final EObject m : referencedModelElements) {
if (i < list.size()) {
if (list.contains(m)) {
list.move(i, m);
} else {
list.add(i, m);
}
} else {
// index grows out of bounds
if (list.contains(m)) {
// if element already in list, move to the end
list.move(list.size() - 1, m);
i--;
} else {
// if element not in list, just append
list.add(m);
}
}
i++;
}
// list.addAll(getIndex(), referencedModelElements);
} else {
// if index is out of range ignore index
for (final EObject m : referencedModelElements) {
if (list.contains(m)) {
// move to end
list.move(list.size() - 1, m);
} else {
// append
list.add(m);
}
}
}
} else {
final boolean indexAdjusted = false;
for (final EObject me : referencedModelElements) {
if (list.contains(me)) {
if (!indexAdjusted) {
final int indexOf = list.indexOf(me);
setIndex(indexOf);
}
list.remove(me);
}
}
if (reference.isContainment()) {
project.allocateModelElementIds(allocatables);
for (final EObject currentElement : referencedModelElements) {
project.addModelElement(currentElement);
}
}
if (referencedModelElements.size() == 0 && getUnset().getValue() == UnsetType.WAS_UNSET_VALUE) {
modelElement.eSet(reference, list);
}
}
break;
}
}
@Override
public AbstractOperation reverse() {
final MultiReferenceOperation multiReferenceOperation = OperationsFactory.eINSTANCE
.createMultiReferenceOperation();
super.reverse(multiReferenceOperation);
multiReferenceOperation.setAdd(!isAdd());
final EList<ModelElementId> copiedReferencedModelElements = multiReferenceOperation
.getReferencedModelElements();
final EList<ModelElementId> modelElements = getReferencedModelElements();
for (final ModelElementId modelElementId : modelElements) {
copiedReferencedModelElements.add(ModelUtil.clone(modelElementId));
}
multiReferenceOperation.setIndex(getIndex());
setUnsetForReverseOperation(multiReferenceOperation);
return multiReferenceOperation;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.emfstore.internal.server.model.versioning.operations.AbstractOperation#getOtherInvolvedModelElements()
*/
@Override
public Set<ModelElementId> getOtherInvolvedModelElements() {
final Set<ModelElementId> set = new LinkedHashSet<ModelElementId>();
set.addAll(getReferencedModelElements());
return set;
}
} // MultiReferenceOperationImpl