001/* 
002    Licensed to the Apache Software Foundation (ASF) under one
003    or more contributor license agreements.  See the NOTICE file
004    distributed with this work for additional information
005    regarding copyright ownership.  The ASF licenses this file
006    to you under the Apache License, Version 2.0 (the
007    "License"); you may not use this file except in compliance
008    with the License.  You may obtain a copy of the License at
009
010       http://www.apache.org/licenses/LICENSE-2.0
011
012    Unless required by applicable law or agreed to in writing,
013    software distributed under the License is distributed on an
014    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015    KIND, either express or implied.  See the License for the
016    specific language governing permissions and limitations
017    under the License.  
018 */
019package org.apache.wiki.tags;
020
021import java.io.IOException;
022import java.util.Collection;
023import javax.servlet.jsp.PageContext;
024
025
026/**
027 *  If there have been no search results, then outputs the body text.
028 *
029 *  @since 2.0
030 */
031public class IfNoSearchResultsTag extends WikiTagBase {
032    private static final long serialVersionUID = 0L;
033    
034    public final int doWikiStartTag() throws IOException {
035        Collection< ? > list = (Collection< ? >)pageContext.getAttribute( "searchresults", PageContext.REQUEST_SCOPE );
036        if( list == null || list.size() == 0 ) {
037            return EVAL_BODY_INCLUDE;
038        }
039
040        return SKIP_BODY;
041    }
042    
043}