ReferenceRenamer.java :  » Wiki-Engine » fitnesse » fitnesse » components » Java Open Source

// Copyright (C) 2003,2004,2005 by Object Mentor, Inc. All rights reserved.
// Released under the terms of the GNU General Public License version 2 or later.
package fitnesse.components;

import fitnesse.wiki.*;
import fitnesse.wikitext.widgets.*;
import fitnesse.wikitext.*;

public abstract class ReferenceRenamer implements FitNesseTraversalListener
{
  protected WikiPage root;

  public ReferenceRenamer(WikiPage root)
  {
    this.root = root;
  }

  protected void renameReferences() throws Exception
  {
    root.getPageCrawler().traverse(root, this);
  }

  public void processPage(WikiPage currentPage) throws Exception
  {
    PageData data = currentPage.getData();
    String content = data.getContent();
    WidgetRoot widgetRoot = new WidgetRoot(content, currentPage, referenceModifyingWidgetBuilder);
    widgetRoot.acceptVisitor(getVisitor());

    String newContent = widgetRoot.asWikiText();
    boolean pageHasChanged = !newContent.equals(content);
    if (pageHasChanged) {
      data.setContent(newContent);
      currentPage.commit(data);
    }
  }
  
  protected abstract WidgetVisitor getVisitor();

  public static WidgetBuilder referenceModifyingWidgetBuilder = new WidgetBuilder(new Class[]{
    WikiWordWidget.class,
    LiteralWidget.class,
    CommentWidget.class,
    PreformattedWidget.class,
    LinkWidget.class,
    ImageWidget.class,
    AliasLinkWidget.class,
    ClasspathWidget.class,
    FixtureWidget.class,
  });
}