/*
 * Copyright (C) 2005-2009 Alfresco Software Limited.
 *
 * 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.
 * As a special exception to the terms and conditions of version 2.0 of
 * the GPL, you may redistribute this Program in connection with Free/Libre
 * and Open Source Software ("FLOSS") applications as described in Alfresco's
 * FLOSS exception.  You should have recieved a copy of the text describing
 * the FLOSS exception, and it is also available here:
 * http://www.alfresco.com/legal/licensing" */

package org.alfresco.repo.avm.ibatis;

import java.util.ArrayList;
import java.util.List;

import org.alfresco.repo.avm.AVMDAOs;
import org.alfresco.repo.avm.AVMNode;
import org.alfresco.repo.avm.MergeLink;
import org.alfresco.repo.avm.MergeLinkDAO;
import org.alfresco.repo.avm.MergeLinkImpl;
import org.alfresco.repo.domain.avm.AVMMergeLinkEntity;

/**
 * iBATIS DAO wrapper for MergeLink
 * 
 * @author janv
 */
class MergeLinkDAOIbatis implements MergeLinkDAO
{
    /* (non-Javadoc)
     * @see org.alfresco.repo.avm.MergeLinkDAO#save(org.alfresco.repo.avm.MergeLink)
     */
    public void save(MergeLink link)
    {
        AVMDAOs.Instance().newAVMNodeLinksDAO.createMergeLink(link.getMfrom().getId(), link.getMto().getId());
    }
    
    /* (non-Javadoc)
     * @see org.alfresco.repo.avm.MergeLinkDAO#getByTo(org.alfresco.repo.avm.AVMNode)
     */
    public MergeLink getByTo(AVMNode to)
    {
        AVMMergeLinkEntity mlEntity = AVMDAOs.Instance().newAVMNodeLinksDAO.getMergeLinkByTo(to.getId());
        
        if (mlEntity == null)
        {
            return null;
        }
        
        AVMNode from = AVMDAOs.Instance().fAVMNodeDAO.getByID(mlEntity.getMergeFromNodeId());
        
        MergeLink ml = new MergeLinkImpl();
        ml.setMfrom(from);
        ml.setMto(to);
        return ml;
    }
    
    /* (non-Javadoc)
     * @see org.alfresco.repo.avm.MergeLinkDAO#getByFrom(org.alfresco.repo.avm.AVMNode)
     */
    public List<MergeLink> getByFrom(AVMNode from)
    {
        List<AVMMergeLinkEntity> mlEntities = AVMDAOs.Instance().newAVMNodeLinksDAO.getMergeLinksByFrom(from.getId());
        
        List<MergeLink> mls = new ArrayList<MergeLink>(mlEntities.size());
        for (AVMMergeLinkEntity mlEntity : mlEntities)
        {
            AVMNode to = AVMDAOs.Instance().fAVMNodeDAO.getByID(mlEntity.getMergeToNodeId());
            
            MergeLink ml = new MergeLinkImpl();
            ml.setMfrom(from);
            ml.setMto(to);
            
            mls.add(ml);
        }
        
        return mls;
    }
    
    /* (non-Javadoc)
     * @see org.alfresco.repo.avm.MergeLinkDAO#delete(org.alfresco.repo.avm.MergeLink)
     */
    public void delete(MergeLink link)
    {
        AVMDAOs.Instance().newAVMNodeLinksDAO.deleteMergeLink(link.getMfrom().getId(), link.getMto().getId());
    }
}