/*******************************************************************************
* 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.server.model.versioning.operations.impl;
import java.util.HashSet;
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.emfstore.common.model.IdEObjectCollection;
import org.eclipse.emf.emfstore.common.model.ModelElementId;
import org.eclipse.emf.emfstore.common.model.Project;
import org.eclipse.emf.emfstore.common.model.util.ModelUtil;
import org.eclipse.emf.emfstore.server.model.versioning.operations.AbstractOperation;
import org.eclipse.emf.emfstore.server.model.versioning.operations.MultiReferenceMoveOperation;
import org.eclipse.emf.emfstore.server.model.versioning.operations.OperationsFactory;
import org.eclipse.emf.emfstore.server.model.versioning.operations.OperationsPackage;
import org.eclipse.emf.emfstore.server.model.versioning.operations.UnkownFeatureException;
/**
* <!-- begin-user-doc --> An implementation of the model object '
* <em><b>Multi Reference Move Operation</b></em>'. <!-- end-user-doc -->
* <p>
* The following features are implemented:
* <ul>
* <li>{@link org.eclipse.emf.emfstore.server.model.versioning.operations.impl.MultiReferenceMoveOperationImpl#getOldIndex <em>Old Index</em>}</li>
* <li>{@link org.eclipse.emf.emfstore.server.model.versioning.operations.impl.MultiReferenceMoveOperationImpl#getNewIndex <em>New Index</em>}</li>
* <li>{@link org.eclipse.emf.emfstore.server.model.versioning.operations.impl.MultiReferenceMoveOperationImpl#getReferencedModelElementId <em>Referenced Model Element Id</em>}</li>
* </ul>
* </p>
*
* @generated
*/
public class MultiReferenceMoveOperationImpl extends FeatureOperationImpl
implements MultiReferenceMoveOperation {
/**
* The default value of the '{@link #getOldIndex() <em>Old Index</em>}' attribute.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @see #getOldIndex()
* @generated
* @ordered
*/
protected static final int OLD_INDEX_EDEFAULT = 0;
/**
* The cached value of the '{@link #getOldIndex() <em>Old Index</em>}' attribute.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @see #getOldIndex()
* @generated
* @ordered
*/
protected int oldIndex = OLD_INDEX_EDEFAULT;
/**
* The default value of the '{@link #getNewIndex() <em>New Index</em>}' attribute.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @see #getNewIndex()
* @generated
* @ordered
*/
protected static final int NEW_INDEX_EDEFAULT = 0;
/**
* The cached value of the '{@link #getNewIndex() <em>New Index</em>}' attribute.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @see #getNewIndex()
* @generated
* @ordered
*/
protected int newIndex = NEW_INDEX_EDEFAULT;
/**
* The cached value of the '{@link #getReferencedModelElementId()
* <em>Referenced Model Element Id</em>}' containment reference. <!--
* begin-user-doc --> <!-- end-user-doc -->
*
* @see #getReferencedModelElementId()
* @generated
* @ordered
*/
protected ModelElementId referencedModelElementId;
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
protected MultiReferenceMoveOperationImpl() {
super();
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
protected EClass eStaticClass() {
return OperationsPackage.Literals.MULTI_REFERENCE_MOVE_OPERATION;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public int getOldIndex() {
return oldIndex;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public void setOldIndex(int newOldIndex) {
int oldOldIndex = oldIndex;
oldIndex = newOldIndex;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__OLD_INDEX, oldOldIndex, oldIndex));
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public int getNewIndex() {
return newIndex;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public void setNewIndex(int newNewIndex) {
int oldNewIndex = newIndex;
newIndex = newNewIndex;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__NEW_INDEX, oldNewIndex, newIndex));
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public ModelElementId getReferencedModelElementId() {
if (referencedModelElementId != null && referencedModelElementId.eIsProxy()) {
InternalEObject oldReferencedModelElementId = (InternalEObject)referencedModelElementId;
referencedModelElementId = (ModelElementId)eResolveProxy(oldReferencedModelElementId);
if (referencedModelElementId != oldReferencedModelElementId) {
InternalEObject newReferencedModelElementId = (InternalEObject)referencedModelElementId;
NotificationChain msgs = oldReferencedModelElementId.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID, null, null);
if (newReferencedModelElementId.eInternalContainer() == null) {
msgs = newReferencedModelElementId.eInverseAdd(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID, null, msgs);
}
if (msgs != null) msgs.dispatch();
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.RESOLVE, OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID, oldReferencedModelElementId, referencedModelElementId));
}
}
return referencedModelElementId;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public ModelElementId basicGetReferencedModelElementId() {
return referencedModelElementId;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public NotificationChain basicSetReferencedModelElementId(
ModelElementId newReferencedModelElementId, NotificationChain msgs) {
ModelElementId oldReferencedModelElementId = referencedModelElementId;
referencedModelElementId = newReferencedModelElementId;
if (eNotificationRequired()) {
ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID, oldReferencedModelElementId, newReferencedModelElementId);
if (msgs == null) msgs = notification; else msgs.add(notification);
}
return msgs;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public void setReferencedModelElementId(
ModelElementId newReferencedModelElementId) {
if (newReferencedModelElementId != referencedModelElementId) {
NotificationChain msgs = null;
if (referencedModelElementId != null)
msgs = ((InternalEObject)referencedModelElementId).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID, null, msgs);
if (newReferencedModelElementId != null)
msgs = ((InternalEObject)newReferencedModelElementId).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID, null, msgs);
msgs = basicSetReferencedModelElementId(newReferencedModelElementId, msgs);
if (msgs != null) msgs.dispatch();
}
else if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID, newReferencedModelElementId, newReferencedModelElementId));
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public NotificationChain eInverseRemove(InternalEObject otherEnd,
int featureID, NotificationChain msgs) {
switch (featureID) {
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID:
return basicSetReferencedModelElementId(null, 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_MOVE_OPERATION__OLD_INDEX:
return getOldIndex();
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__NEW_INDEX:
return getNewIndex();
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID:
if (resolve) return getReferencedModelElementId();
return basicGetReferencedModelElementId();
}
return super.eGet(featureID, resolve, coreType);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public void eSet(int featureID, Object newValue) {
switch (featureID) {
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__OLD_INDEX:
setOldIndex((Integer)newValue);
return;
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__NEW_INDEX:
setNewIndex((Integer)newValue);
return;
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID:
setReferencedModelElementId((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_MOVE_OPERATION__OLD_INDEX:
setOldIndex(OLD_INDEX_EDEFAULT);
return;
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__NEW_INDEX:
setNewIndex(NEW_INDEX_EDEFAULT);
return;
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID:
setReferencedModelElementId((ModelElementId)null);
return;
}
super.eUnset(featureID);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public boolean eIsSet(int featureID) {
switch (featureID) {
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__OLD_INDEX:
return oldIndex != OLD_INDEX_EDEFAULT;
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__NEW_INDEX:
return newIndex != NEW_INDEX_EDEFAULT;
case OperationsPackage.MULTI_REFERENCE_MOVE_OPERATION__REFERENCED_MODEL_ELEMENT_ID:
return referencedModelElementId != null;
}
return super.eIsSet(featureID);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public String toString() {
if (eIsProxy()) return super.toString();
StringBuffer result = new StringBuffer(super.toString());
result.append(" (oldIndex: ");
result.append(oldIndex);
result.append(", newIndex: ");
result.append(newIndex);
result.append(')');
return result.toString();
}
public void apply(IdEObjectCollection project) {
EObject modelElement = project.getModelElement(getModelElementId());
EObject referencedModelElement = project
.getModelElement(getReferencedModelElementId());
if (modelElement == null) {
// fail silently
return;
}
EReference reference;
try {
reference = (EReference) this.getFeature(modelElement);
} catch (UnkownFeatureException e) {
// fail silently
return;
}
Object object = modelElement.eGet(reference);
@SuppressWarnings("unchecked")
EList<EObject> list = (EList<EObject>) object;
if (getNewIndex() >= list.size() || getNewIndex() < 0
|| referencedModelElement == null
|| !list.contains(referencedModelElement)) {
// do nothing if index out of bound or element not in list.
return;
}
list.move(getNewIndex(), referencedModelElement);
}
/**
* @see org.eclipse.emf.emfstore.server.model.versioning.operations.impl.FeatureOperationImpl#canApply(org.eclipse.emf.emfstore.common.model.Project)
*/
@Override
public boolean canApply(Project project) {
if (!super.canApply(project)) {
return false;
}
EObject modelElement = project.getModelElement(getModelElementId());
if (modelElement == null) {
return false;
}
EReference reference;
try {
reference = (EReference) this.getFeature(modelElement);
} catch (UnkownFeatureException e) {
// fail silently
return false;
}
Object object = modelElement.eGet(reference);
@SuppressWarnings("unchecked")
EList<EObject> list = (EList<EObject>) object;
if (getNewIndex() >= list.size() || getNewIndex() < 0) {
return false;
}
return true;
}
@Override
public String getDescription() {
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append("Moved ");
stringBuilder.append(getFeatureName().substring(0,
getFeatureName().length() - 1));
stringBuilder.append(" from position ");
stringBuilder.append(getOldIndex() + 1);
stringBuilder.append(" to ");
stringBuilder.append(getNewIndex() + 1);
stringBuilder.append(".");
return stringBuilder.toString();
}
@Override
public String getName() {
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append("Changed order of ");
stringBuilder.append(getFeatureName());
return stringBuilder.toString();
}
@Override
public AbstractOperation reverse() {
MultiReferenceMoveOperation multiReferenceMoveOperation = OperationsFactory.eINSTANCE
.createMultiReferenceMoveOperation();
reverse(multiReferenceMoveOperation);
multiReferenceMoveOperation.setNewIndex(getOldIndex());
multiReferenceMoveOperation.setOldIndex(getNewIndex());
multiReferenceMoveOperation.setReferencedModelElementId(ModelUtil
.clone(getReferencedModelElementId()));
return multiReferenceMoveOperation;
}
/**
* @see org.eclipse.emf.emfstore.server.model.versioning.operations.impl.AbstractOperationImpl#getOtherInvolvedModelElements()
*/
@Override
public Set<ModelElementId> getOtherInvolvedModelElements() {
Set<ModelElementId> result = new HashSet<ModelElementId>();
result.add(getReferencedModelElementId());
return result;
}
} // MultiReferenceMoveOperationImpl