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 org.apache.wiki.api.core.Attachment;
022import org.apache.wiki.api.core.Engine;
023import org.apache.wiki.api.core.Page;
024import org.apache.wiki.render.RenderingManager;
025import org.apache.wiki.util.TextUtil;
026
027import java.io.IOException;
028
029/**
030 *  Returns the currently requested page name.
031 *
032 *  @since 2.0
033 */
034public class PageNameTag extends WikiTagBase {
035
036    private static final long serialVersionUID = 0L;
037
038    @Override
039    public final int doWikiStartTag() throws IOException {
040        final Engine engine = m_wikiContext.getEngine();
041        final Page page = m_wikiContext.getPage();
042
043        if( page != null ) {
044            if( page instanceof Attachment ) {
045                pageContext.getOut().print( TextUtil.replaceEntities( ((Attachment)page).getFileName() ) );
046            } else {
047                pageContext.getOut().print( engine.getManager( RenderingManager.class ).beautifyTitle( m_wikiContext.getName() ) );
048            }
049        }
050
051        return SKIP_BODY;
052    }
053
054}