/*
* Copyright (C) 2011 eXo Platform SAS.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.portal.mop.navigation;
import org.exoplatform.portal.mop.SiteKey;
import org.exoplatform.portal.pom.data.MappedAttributes;
import org.gatein.mop.api.workspace.Navigation;
import java.io.Serializable;
/**
* An immutable navigation data class.
*
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
*/
public class NavigationData implements Serializable
{
/** Useful. */
static final NavigationData EMPTY = new NavigationData();
/** . */
final SiteKey key;
/** . */
final NavigationState state;
/** . */
final String rootId;
private NavigationData()
{
this.key = null;
this.state = null;
this.rootId = null;
}
NavigationData(SiteKey key, Navigation node)
{
String rootId = node.getObjectId();
NavigationState state = new NavigationState(node.getAttributes().getValue(MappedAttributes.PRIORITY, 1));
//
this.key = key;
this.state = state;
this.rootId = rootId;
}
NavigationData(SiteKey key, NavigationState state, String rootId)
{
this.key = key;
this.state = state;
this.rootId = rootId;
}
protected Object readResolve()
{
if (key == null && state == null && rootId == null)
{
return EMPTY;
}
else
{
return this;
}
}
}