/**
    * This file Copyright (c) 2003-2011 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.link;
  
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  
  import info.magnolia.cms.core.Content;
  
  /**
   * Transformer creating links relative to provided path.
   *
   * @version $Id$
   */
  public class RelativePathTransformer extends AbsolutePathTransformer {
  
      protected String absolutSourcePath;
      
      public void setAbsolutSourcePath(Node sourceNode){
          try {
              Link link = new Link(sourceNode);
              link.setRepository(sourceNode.getSession().getWorkspace().getName());
              link.setExtension("html");
              absolutSourcePath = super.transform(link);
          } catch (RepositoryException e) {
              throw new RuntimeException(e);
          }
      }
      
      public void setAbsolutSourcePath(String absolutSourcePath){
          this.absolutSourcePath = absolutSourcePath;
      }
      
      public RelativePathTransformer(){
      }
  
      public RelativePathTransformer(Content sourcePage, boolean useURI2RepositoryMapping, boolean useI18N) {
          this(sourcePage.getJCRNode(), useURI2RepositoryMapping, useI18N);
      }
      
      public RelativePathTransformer(Node sourcePage, boolean useURI2RepositoryMapping, boolean useI18N) {
          super(false, useURI2RepositoryMapping, useI18N);
          try {
              Link link = new Link(sourcePage);
              link.setRepository(sourcePage.getSession().getWorkspace().getName());
              link.setExtension("html");
              absolutSourcePath = super.transform(link);
          } catch (RepositoryException e) {
              throw new RuntimeException(e);
          }
      }
  
      public RelativePathTransformer(String absoluteSourcePath, boolean useURI2RepositoryMapping, boolean useI18N) {
          super(false, useURI2RepositoryMapping, useI18N);
          this.absolutSourcePath = absoluteSourcePath;
      }
  
      @Override
      public String transform(Link target) {
          String link = super.transform(target);
          return LinkUtil.makePathRelative(absolutSourcePath, link);
      }
  }