/*
 * Copyright (C) 2005 Alfresco, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program 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 General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.alfresco.repo.template;

import java.util.List;
import java.util.StringTokenizer;

import org.alfresco.service.ServiceRegistry;
import org.alfresco.service.cmr.repository.TemplateNode;

/**
 * A special Map that executes an XPath against the parent Node as part of the get()
 * Map interface implementation.
 * 
 * @author Kevin Roast
 */
public class NamePathResultsMap extends BasePathResultsMap
{
    /**
     * Constructor
     * 
     * @param parent         The parent TemplateNode to execute searches from 
     * @param services       The ServiceRegistry to use
     */
    public NamePathResultsMap(TemplateNode parent, ServiceRegistry services)
    {
        super(parent, services);
    }
    
    /**
     * @see java.util.Map#get(java.lang.Object)
     */
    public Object get(Object key)
    {
        StringBuilder xpath = new StringBuilder(128);
        for (StringTokenizer t = new StringTokenizer(key.toString(), "/"); t.hasMoreTokens(); /**/)
        {
            if (xpath.length() != 0)
            {
                xpath.append('/');
            }
            xpath.append("*[@cm:name='")
                 .append(t.nextToken())   // TODO: use QueryParameterDefinition see FileFolderService.search()
                 .append("']");
        }
        
        List<TemplateNode> nodes = getChildrenByXPath(xpath.toString(), true);
        return (nodes.size() != 0) ? nodes.get(0) : null;
    }
}