/*
* Copyright (c) 2005-2011 Vincent Vandenschrick. All rights reserved.
*
* This file is part of the Jspresso framework.
*
* Jspresso 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.
*
* Jspresso 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 Jspresso. If not, see <http://www.gnu.org/licenses/>.
*/
package org.jspresso.framework.model.component.basic;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.hibernate.collection.PersistentCollection;
import org.jspresso.framework.model.component.IComponent;
import org.jspresso.framework.model.component.IComponentFactory;
import org.jspresso.framework.model.descriptor.ICollectionPropertyDescriptor;
import org.jspresso.framework.util.accessor.IAccessor;
import org.jspresso.framework.util.accessor.IAccessorFactory;
import org.jspresso.framework.util.bean.BeanComparator;
import org.jspresso.framework.util.collection.ESort;
/**
* Base class for component factories.
*
* @version $LastChangedRevision$
* @author Vincent Vandenschrick
*/
public abstract class AbstractComponentFactory implements IComponentFactory {
private IAccessorFactory accessorFactory;
/**
* Gets the accessorFactory.
*
* @return the accessorFactory.
*/
@Override
public IAccessorFactory getAccessorFactory() {
return accessorFactory;
}
/**
* Sets the accessorFactory used by this entity factory.
*
* @param accessorFactory
* the accessorFactory to set.
*/
public void setAccessorFactory(IAccessorFactory accessorFactory) {
this.accessorFactory = accessorFactory;
}
/**
* {@inheritDoc}
*/
@Override
@SuppressWarnings("unchecked")
public void sortCollectionProperty(IComponent component, String propertyName) {
Collection<Object> propertyValue = (Collection<Object>) component
.straightGetProperty(propertyName);
boolean wasClean = false;
if (propertyValue instanceof PersistentCollection
&& !((PersistentCollection) propertyValue).isDirty()) {
wasClean = true;
}
ICollectionPropertyDescriptor<?> propertyDescriptor = (ICollectionPropertyDescriptor<?>) getComponentDescriptor(
component.getComponentContract()).getPropertyDescriptor(propertyName);
if (propertyValue != null
&& !propertyValue.isEmpty()
&& !List.class.isAssignableFrom(propertyDescriptor
.getCollectionDescriptor().getCollectionInterface())) {
Map<String, ESort> orderingProperties = propertyDescriptor
.getOrderingProperties();
if (orderingProperties != null && !orderingProperties.isEmpty()) {
List<IAccessor> orderingAccessors = new ArrayList<IAccessor>();
List<ESort> orderingDirections = new ArrayList<ESort>();
Class<?> collectionElementContract = propertyDescriptor
.getCollectionDescriptor().getElementDescriptor()
.getComponentContract();
for (Map.Entry<String, ESort> orderingProperty : orderingProperties
.entrySet()) {
orderingAccessors.add(accessorFactory.createPropertyAccessor(
orderingProperty.getKey(), collectionElementContract));
orderingDirections.add(orderingProperty.getValue());
}
BeanComparator comparator = new BeanComparator(orderingAccessors,
orderingDirections);
List<Object> collectionOrigin = new ArrayList<Object>(propertyValue);
List<Object> collectionCopy = new ArrayList<Object>(propertyValue);
Collections.sort(collectionCopy, comparator);
if (!collectionCopy.equals(collectionOrigin)) {
Collection<Object> collectionProperty = propertyValue;
collectionProperty.clear();
collectionProperty.addAll(collectionCopy);
if (wasClean) {
((PersistentCollection) collectionProperty).clearDirty();
}
}
}
}
}
}