/**
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, version 2.1, dated February 1999.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the latest version of the GNU Lesser General
* Public License as published by the Free Software Foundation;
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program (LICENSE.txt); if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package org.jamwiki.taglib;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyTagSupport;
import org.jamwiki.WikiException;
import org.jamwiki.model.Watchlist;
import org.jamwiki.servlets.ServletUtil;
import org.jamwiki.utils.WikiLogger;
import org.jamwiki.utils.WikiUtil;
/**
* JSP tag used to highlight the tag content if the specified topic is in the
* current users's watchlist.
*/
public class WatchlistTag extends BodyTagSupport {
private static final WikiLogger logger = WikiLogger.getLogger(WatchlistTag.class.getName());
private String topic = null;
/**
*
*/
public int doStartTag() throws JspException {
if (this.isWatchedTopic()) {
try {
this.pageContext.getOut().print("<strong>");
} catch (IOException e) {
logger.severe("Failure processing watchlist item " + this.topic, e);
throw new JspException(e);
}
}
return EVAL_BODY_INCLUDE;
}
/**
*
*/
public int doEndTag() throws JspException {
if (this.isWatchedTopic()) {
try {
this.pageContext.getOut().print("</strong>");
} catch (IOException e) {
logger.severe("Failure processing watchlist item " + this.topic, e);
throw new JspException(e);
}
}
return EVAL_PAGE;
}
/**
*
*/
private boolean isWatchedTopic() throws JspException {
HttpServletRequest request = (HttpServletRequest)this.pageContext.getRequest();
String virtualWiki = WikiUtil.getVirtualWikiFromRequest(request);
try {
Watchlist watchlist = ServletUtil.currentWatchlist(request, virtualWiki);
return (watchlist.containsTopic(this.topic));
} catch (WikiException e) {
logger.severe("Failure processing watchlist item " + this.topic, e);
throw new JspException(e);
}
}
/**
*
*/
public String getTopic() {
return this.topic;
}
/**
*
*/
public void setTopic(String topic) {
this.topic = topic;
}
}