/*
JSPWiki - a JSP-based WikiWiki clone.
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
*/
package com.ecyrd.jspwiki.tags;
import java.io.IOException;
import com.ecyrd.jspwiki.TextUtil;
import com.ecyrd.jspwiki.WikiContext;
import com.ecyrd.jspwiki.WikiEngine;
import com.ecyrd.jspwiki.WikiPage;
import com.ecyrd.jspwiki.plugin.WeblogPlugin;
import com.ecyrd.jspwiki.util.BlogUtil;
/**
* Outputs links to all the site feeds and APIs this Wiki/blog supports.
*
* @since 2.2
*/
public class FeedDiscoveryTag
extends WikiTagBase
{
private static final long serialVersionUID = 0L;
public final int doWikiStartTag()
throws IOException
{
WikiEngine engine = m_wikiContext.getEngine();
WikiPage page = m_wikiContext.getPage();
String encodedName = engine.encodeName( page.getName() );
String rssURL = engine.getGlobalRSSURL();
String rssFeedURL = engine.getURL(WikiContext.NONE, "rss.jsp",
"page="+encodedName+"&mode=wiki",
true );
if( rssURL != null )
{
String siteName = BlogUtil.getSiteName(m_wikiContext);
siteName = TextUtil.replaceEntities( siteName );
pageContext.getOut().print("<link rel=\"alternate\" type=\"application/rss+xml\" title=\"RSS wiki feed for the entire site.\" href=\""+rssURL+"\" />\n");
pageContext.getOut().print("<link rel=\"alternate\" type=\"application/rss+xml\" title=\"RSS wiki feed for page "+siteName+".\" href=\""+rssFeedURL+"\" />\n");
// TODO: Enable this
/*
pageContext.getOut().print("<link rel=\"service.post\" type=\"application/atom+xml\" title=\""+
siteName+"\" href=\""+atomPostURL+"\" />\n");
*/
// FIXME: This does not work always, as plugins are not initialized until the first fetch
if( "true".equals(page.getAttribute(WeblogPlugin.ATTR_ISWEBLOG)) )
{
String blogFeedURL = engine.getURL(WikiContext.NONE,"rss.jsp","page="+encodedName,true);
String atomFeedURL = engine.getURL(WikiContext.NONE,"rss.jsp","page="+encodedName+"&type=atom",true);
pageContext.getOut().print("<link rel=\"alternate\" type=\"application/rss+xml\" title=\"RSS feed for weblog "+
siteName+".\" href=\""+blogFeedURL+"\" />\n");
pageContext.getOut().print("<link rel=\"service.feed\" type=\"application/atom+xml\" title=\"Atom 1.0 weblog feed for "+
siteName+"\" href=\""+atomFeedURL+"\" />\n");
}
}
return SKIP_BODY;
}
}