searchresultstag.java

wiki建站资源 java编写的 很好用

/* 
    JSPWiki - a JSP-based WikiWiki clone.

    Copyright (C) 2001-2004 Janne Jalkanen ([e-mail])

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 2.1 of the License, or
    (at your option) any later version.

    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; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package com.ecyrd.jspwiki.tags;

import java.io.IOException;
import java.util.Collection;
import javax.servlet.jsp.PageContext;

/**
 *  Includes the body content, if there are any search results.
 *
 *  @author Janne Jalkanen
 *  @since 2.0
 */
public class SearchResultsTag
    extends WikiTagBase
{
    public final int doWikiStartTag()
        throws IOException
    {
        Collection list = (Collection)pageContext.getAttribute( "searchresults",
                                                                PageContext.REQUEST_SCOPE );
        
        if( list != null )
        {
            return EVAL_BODY_INCLUDE;
        }
        else
        {
            String message = (String)pageContext.getAttribute( "err",
                                                               PageContext.REQUEST_SCOPE );
            
            if( message != null )
            {
                pageContext.getOut().print("<div class='error'>");
                pageContext.getOut().print( message );
                pageContext.getOut().println("</div>");
            }
        }
        
        return SKIP_BODY;
    }
}