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; 025 026import java.io.IOException; 027 028/** 029 * Returns the parent of the currently requested page. Weblog entries are recognized as subpages of the weblog page. 030 * 031 * @since 2.0 032 */ 033public class ParentPageNameTag extends WikiTagBase { 034 035 private static final long serialVersionUID = 0L; 036 037 /** 038 * {@inheritDoc} 039 */ 040 @Override 041 public final int doWikiStartTag() throws IOException { 042 final Engine engine = m_wikiContext.getEngine(); 043 final Page page = m_wikiContext.getPage(); 044 045 if( page != null ) { 046 if( page instanceof Attachment ) { 047 pageContext.getOut().print( engine.getManager( RenderingManager.class ).beautifyTitle( ((Attachment)page).getParentName()) ); 048 } else { 049 String name = page.getName(); 050 final int entrystart = name.indexOf("_blogentry_"); 051 if( entrystart != -1 ) { 052 name = name.substring( 0, entrystart ); 053 } 054 055 final int commentstart = name.indexOf("_comments_"); 056 if( commentstart != -1 ) { 057 name = name.substring( 0, commentstart ); 058 } 059 060 pageContext.getOut().print( engine.getManager( RenderingManager.class ).beautifyTitle(name) ); 061 } 062 } 063 064 return SKIP_BODY; 065 } 066 067}