/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Whole Platform is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.util;
import org.whole.lang.model.IEntity;
import org.whole.lang.reflect.EntityKinds;
import org.whole.lang.reflect.FeatureDescriptor;
/**
* @author Riccardo Solmi
*/
public class DefaultWrapInTransformer implements IEntityTransformer {
public static final DefaultWrapInTransformer instance = new DefaultWrapInTransformer();
protected final FeatureDescriptor featureDescriptor;
protected final int index;
public DefaultWrapInTransformer() {
this(0);
}
public DefaultWrapInTransformer(FeatureDescriptor featureDescriptor) {
this(featureDescriptor, -1);
}
public DefaultWrapInTransformer(int index) {
this(null, index);
}
protected DefaultWrapInTransformer(FeatureDescriptor featureDescriptor, int index) {
this.featureDescriptor = featureDescriptor;
this.index = index;
}
public FeatureDescriptor getFeatureDescriptor() {
return featureDescriptor;
}
public int getIndex() {
return index;
}
public void transform(IEntity oldEntity, IEntity newEntity) {
EntityKinds newKind = newEntity.wGetEntityKind();
if (newKind.isData())
return;
IEntity clone = EntityUtils.clone(oldEntity);
if (featureDescriptor != null) {
if (newEntity.wGetEntityDescriptor().getEntityDescriptor(featureDescriptor).isPlatformSupertypeOf(oldEntity.wGetEntityDescriptor()))
newEntity.wSet(featureDescriptor, clone);
} else if (newEntity.wGetEntityDescriptor().getEntityDescriptor(index).isPlatformSupertypeOf(oldEntity.wGetEntityDescriptor()))
newEntity.wSet(index, clone);
}
}