LinkWidget.java :  » Wiki-Engine » fitnesse » fitnesse » wikitext » widgets » 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.wikitext.widgets;

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import fitnesse.wikitext.WidgetBuilder;

public class LinkWidget extends ParentWidget
{
  public static final String REGEXP = "https?://[^\\s]+[^\\s.)]+";
  private static final Pattern pattern = Pattern.compile("https?://([^/\\s]*)(\\S*)?");

  public LinkWidget(ParentWidget parent, String text) throws Exception
  {
    super(parent);
    addChildWidgets(text);
  }

  public String render() throws Exception
  {
     String linkText = childHtml();
    String usableURL = makeUrlUsable(linkText);
    StringBuffer html = new StringBuffer("<a href=\"");
    html.append(usableURL);
    html.append("\">");
    html.append(linkText);
    html.append("</a>");

    return html.toString();
  }

  public static String makeUrlUsable(String url)
  {
    String usableUrl = url;
    Matcher match = pattern.matcher(url);
    if(match.find())
    {
      String host = match.group(1);
      String resource = match.group(2);
      if("files".equals(host))
        usableUrl = "/files" + resource;
    }

    return usableUrl;
  }

  public WidgetBuilder getBuilder()
  {
    return WidgetBuilder.variableWidgetBuilder;
  }

  public String asWikiText() throws Exception
  {
    return childWikiText();
  }
}