/**
* Copyright (c) 2006-2011 IBM Corporation 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
*
* Contributors:
* IBM - Initial API and implementation
*/
package org.eclipse.emf.ecore.change.impl;
import com.google.gwt.user.client.rpc.GwtTransient;
import java.util.Collection;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.common.util.BasicEList;
import org.eclipse.emf.common.util.ECollections;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.change.ChangePackage;
import org.eclipse.emf.ecore.change.ListChange;
import org.eclipse.emf.ecore.change.ResourceChange;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.impl.EObjectImpl;
import org.eclipse.emf.ecore.resource.ContentHandler;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.InternalEList;
/**
* <!-- begin-user-doc -->
* An implementation of the model object '<em><b>Resource Change</b></em>'.
* <!-- end-user-doc -->
* <p>
* The following features are implemented:
* <ul>
* <li>{@link org.eclipse.emf.ecore.change.impl.ResourceChangeImpl#getResourceURI <em>Resource URI</em>}</li>
* <li>{@link org.eclipse.emf.ecore.change.impl.ResourceChangeImpl#getResource <em>Resource</em>}</li>
* <li>{@link org.eclipse.emf.ecore.change.impl.ResourceChangeImpl#getValue <em>Value</em>}</li>
* <li>{@link org.eclipse.emf.ecore.change.impl.ResourceChangeImpl#getListChanges <em>List Changes</em>}</li>
* </ul>
* </p>
*
* @generated
*/
public class ResourceChangeImpl extends EObjectImpl implements ResourceChange
{
/**
* The default value of the '{@link #getResourceURI() <em>Resource URI</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getResourceURI()
* @generated
* @ordered
*/
protected static final String RESOURCE_URI_EDEFAULT = null;
/**
* The cached value of the '{@link #getResourceURI() <em>Resource URI</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getResourceURI()
* @generated
* @ordered
*/
@GwtTransient
protected String resourceURI = RESOURCE_URI_EDEFAULT;
/**
* The default value of the '{@link #getResource() <em>Resource</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getResource()
* @generated
* @ordered
*/
protected static final Resource RESOURCE_EDEFAULT = null;
/**
* The cached value of the '{@link #getResource() <em>Resource</em>}' attribute.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getResource()
* @generated
* @ordered
*/
@GwtTransient
protected Resource resource = RESOURCE_EDEFAULT;
/**
* The cached value of the '{@link #getListChanges() <em>List Changes</em>}' containment reference list.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @see #getListChanges()
* @generated
* @ordered
*/
@GwtTransient
protected EList<ListChange> listChanges;
@GwtTransient
protected EList<Object> valueField = null;
@GwtTransient
protected EList<Object> newValue = null;
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected ResourceChangeImpl()
{
super();
}
protected ResourceChangeImpl(Resource resource, EList<Object> value)
{
this();
setResource(resource);
setValue(value);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected EClass eStaticClass()
{
return ChangePackage.Literals.RESOURCE_CHANGE;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public String getResourceURI()
{
return resourceURI;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setResourceURI(String newResourceURI)
{
String oldResourceURI = resourceURI;
resourceURI = newResourceURI;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, ChangePackage.RESOURCE_CHANGE__RESOURCE_URI, oldResourceURI, resourceURI));
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated NOT
*/
public Resource getResource()
{
if (resource == null)
{
if (getResourceURI() != null)
{
Resource changeResource = eResource();
if (changeResource != null)
{
ResourceSet resourceSet = changeResource.getResourceSet();
if (resourceSet != null)
{
URI resourceURI = URI.createURI(getResourceURI());
if (resourceSet.getURIConverter().exists(resourceURI, resourceSet.getLoadOptions()))
{
resource = resourceSet.getResource(resourceURI, true);
}
else
{
resource = resourceSet.createResource(resourceURI, ContentHandler.UNSPECIFIED_CONTENT_TYPE);
}
}
}
}
}
return resource;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setResourceGen(Resource newResource)
{
Resource oldResource = resource;
resource = newResource;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, ChangePackage.RESOURCE_CHANGE__RESOURCE, oldResource, resource));
}
public void setResource(Resource newResource)
{
setResourceGen(newResource);
setResourceURI(newResource.getURI() == null ? null : newResource.getURI().toString());
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated NOT
*/
public EList<Object> getValue()
{
if (valueField == null)
{
Resource resource = getResource();
if (resource != null)
{
EList<Object> changedList = new BasicEList<Object>(resource.getContents());
apply(changedList);
valueField = changedList; // cache result
return changedList;
}
return ECollections.emptyEList();
}
return valueField;
}
protected void setValue(EList<Object> value)
{
valueField = value;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public EList<ListChange> getListChanges()
{
if (listChanges == null)
{
listChanges = new EObjectContainmentEList<ListChange>(ListChange.class, this, ChangePackage.RESOURCE_CHANGE__LIST_CHANGES);
}
return listChanges;
}
public void preApply(boolean reverse)
{
if (resource != null)
{
if (reverse)
{
newValue = new BasicEList<Object>(resource.getContents());
}
}
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated NOT
*/
public void apply()
{
apply(false);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated NOT
*/
public void applyAndReverse()
{
apply(true);
}
protected void apply(boolean reverse)
{
process(reverse, true);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated NOT
*/
public void reverse()
{
process(true, false);
}
protected void process(boolean reverse, boolean apply)
{
Resource resource = getResource();
if (resource != null && listChanges != null)
{
EList<Object> value = getValue();
if (apply)
{
@SuppressWarnings({"unchecked", "rawtypes"}) EList<Object> result = (EList)resource.getContents();
ECollections.setEList(result, value);
}
if (reverse)
{
ECollections.reverse(getListChanges());
setValue(newValue);
}
}
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs)
{
switch (featureID)
{
case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
return ((InternalEList<?>)getListChanges()).basicRemove(otherEnd, msgs);
}
return super.eInverseRemove(otherEnd, featureID, msgs);
}
protected void apply(EList<Object> toList)
{
for (ListChange listChange : getListChanges())
{
listChange.apply(toList);
}
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public Object eGet(int featureID, boolean resolve, boolean coreType)
{
switch (featureID)
{
case ChangePackage.RESOURCE_CHANGE__RESOURCE_URI:
return getResourceURI();
case ChangePackage.RESOURCE_CHANGE__RESOURCE:
return getResource();
case ChangePackage.RESOURCE_CHANGE__VALUE:
return getValue();
case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
return getListChanges();
}
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 ChangePackage.RESOURCE_CHANGE__RESOURCE_URI:
setResourceURI((String)newValue);
return;
case ChangePackage.RESOURCE_CHANGE__RESOURCE:
setResource((Resource)newValue);
return;
case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
getListChanges().clear();
getListChanges().addAll((Collection<? extends ListChange>)newValue);
return;
}
super.eSet(featureID, newValue);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void eUnset(int featureID)
{
switch (featureID)
{
case ChangePackage.RESOURCE_CHANGE__RESOURCE_URI:
setResourceURI(RESOURCE_URI_EDEFAULT);
return;
case ChangePackage.RESOURCE_CHANGE__RESOURCE:
setResource(RESOURCE_EDEFAULT);
return;
case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
getListChanges().clear();
return;
}
super.eUnset(featureID);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public boolean eIsSet(int featureID)
{
switch (featureID)
{
case ChangePackage.RESOURCE_CHANGE__RESOURCE_URI:
return RESOURCE_URI_EDEFAULT == null ? resourceURI != null : !RESOURCE_URI_EDEFAULT.equals(resourceURI);
case ChangePackage.RESOURCE_CHANGE__RESOURCE:
return RESOURCE_EDEFAULT == null ? resource != null : !RESOURCE_EDEFAULT.equals(resource);
case ChangePackage.RESOURCE_CHANGE__VALUE:
return getValue() != null;
case ChangePackage.RESOURCE_CHANGE__LIST_CHANGES:
return listChanges != null && !listChanges.isEmpty();
}
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(" (resourceURI: ");
result.append(resourceURI);
result.append(", resource: ");
result.append(resource);
result.append(')');
return result.toString();
}
} //ResourceChangeImpl