/*
    * Copyright (C) 2003-2009 eXo Platform SAS.
    *
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Affero General Public License
    * as published by the Free Software Foundation; either version 3
    * 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, see<http://www.gnu.org/licenses/>.
   */
  package org.exoplatform.services.cms.thumbnail.impl;
  
  import javax.jcr.ItemExistsException;
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  
  import org.exoplatform.services.cms.thumbnail.ThumbnailService;
  import org.exoplatform.services.log.ExoLogger;
  import org.exoplatform.services.log.Log;
  
  /**
   * Created by The eXo Platform SAS
   * Author : eXoPlatform
   *          nicolas.filotto@exoplatform.com
   * 8 avr. 2009
   */
  public final class ThumbnailUtils {
  
    private static final Log LOG = ExoLogger.getLogger(ThumbnailUtils.class.getName());
  
    public static synchronized Node getThumbnailFolder(Node parentNode) throws RepositoryException {
      if (!parentNode.hasNode(ThumbnailService.EXO_THUMBNAILS_FOLDER)) {
        try {
          Node thumbnailFolder = parentNode.addNode(ThumbnailService.EXO_THUMBNAILS_FOLDER,
                                               ThumbnailService.EXO_THUMBNAILS);
          parentNode.getSession().save();
          if (thumbnailFolder.canAddMixin(ThumbnailService.HIDDENABLE_NODETYPE)) {
            thumbnailFolder.addMixin(ThumbnailService.HIDDENABLE_NODETYPE);
          }
          parentNode.getSession().save();
          return thumbnailFolder;
        } catch (ItemExistsException e) {
          return parentNode.getNode(ThumbnailService.EXO_THUMBNAILS_FOLDER);
        }
      }
      return parentNode.getNode(ThumbnailService.EXO_THUMBNAILS_FOLDER);
    }
  
    public static synchronized Node getThumbnailNode(Node thumbnailFolder, String identifier) throws RepositoryException {
      if (!thumbnailFolder.hasNode(identifier)) {
        try {
          Node thumbnailNode = thumbnailFolder.addNode(identifier, ThumbnailService.EXO_THUMBNAIL);
          thumbnailFolder.getSession().save();
          return thumbnailNode;
        } catch (ItemExistsException e) {
          return thumbnailFolder.getNode(identifier);
        }
      }
      return thumbnailFolder.getNode(identifier);
    }
  }