/*
 * Copyright (C) 2009 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.services.jcr.impl.storage.value.fs;

import org.exoplatform.services.jcr.impl.util.io.FileCleaner;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;

import java.io.File;

/**
 * Created by The eXo Platform SAS
 * 
 * Date: 22.07.2008
 * 
 * @author <a href="mailto:peter.nedonosko@exoplatform.com.ua">Peter Nedonosko</a>
 * @version $Id: TreeFile.java 34801 2009-07-31 15:44:50Z dkatayev $
 */
public class TreeFile extends File
{

   /** Files log */
   private static Log fLog = ExoLogger.getLogger("exo.jcr.component.core.TreeFile");

   private static final long serialVersionUID = 5125295927077006487L;

   private final FileCleaner cleaner;

   private final File rootDir;

   TreeFile(String fileName, FileCleaner cleaner, File rootDir)
   {
      super(fileName);
      this.cleaner = cleaner;
      this.rootDir = rootDir;
   }

   @Override
   public boolean delete()
   {
      boolean res = super.delete();
      if (res)
         deleteParent(new File(getParent()));

      return res;
   }

   protected boolean deleteParent(File fp)
   {
      boolean res = false;
      String fpPath = fp.getAbsolutePath();
      String rootPath = rootDir.getAbsolutePath();
      if (fpPath.startsWith(rootPath) && fpPath.length() > rootPath.length())
         if (fp.isDirectory())
         {
            String[] ls = fp.list();
            if (ls != null && ls.length <= 0)
            {
               if (res = fp.delete())
               {
                  res = deleteParent(new File(fp.getParent()));
               }
               else
               {
                  fLog.warn("Parent directory can not be deleted now. " + fp.getAbsolutePath());
                  cleaner.addFile(new TreeFile(fp.getAbsolutePath(), cleaner, rootDir));
               }
            }
         }
         else
            fLog.warn("Parent can not be a file but found " + fp.getAbsolutePath());
      return res;
   }
}