/* copyright (C) 2007 Chris Gilbert. All Rights Reserved.
 *
 * This library 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 library 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 library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

package com.arsdigita.london.navigation.cms;

import org.apache.log4j.Logger;

import com.arsdigita.categorization.Category;
import com.arsdigita.cms.ContentPage;
import com.arsdigita.kernel.ACSObject;
import com.arsdigita.london.navigation.CookieNavigationModel;


/**
 * Implementation of Cookie Navigation Model that defers to 
 * default breadcrumb trail if cookie is not valid or not present
 */
public class CMSCookieNavigationModel extends CookieNavigationModel {

    
    private CMSNavigationModel m_cmsNavModel = new CMSNavigationModel();
    
    private static final Logger s_log
        = Logger.getLogger(CMSCookieNavigationModel.class);

   
   
   /**
    * if no valid path is available from cookie, defer to 
    * original behaviour - select default path to the item
    */
    protected Category[] getAlternativePath(boolean cookieExists) {
    	s_log.debug("retrieving default path to item");
    	return m_cmsNavModel.loadCategoryPath();
    }
    
    /**
     * in cms, content bundle is categorised not the content item
     */
    protected ACSObject getCategorisedObject() {
    	ACSObject object = m_cmsNavModel.loadObject();
    	if (object instanceof ContentPage) {
    		object = ((ContentPage)object).getContentBundle();
    	}
    	return object;
    	
    }
      
}

