| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| */ |
| package org.apache.wiki.tags; |
| |
| import org.apache.wiki.WikiPage; |
| import org.apache.wiki.api.core.Engine; |
| import org.apache.wiki.api.exceptions.ProviderException; |
| import org.apache.wiki.pages.PageManager; |
| |
| import java.io.IOException; |
| |
| /** |
| * Includes the body in case there is no such page available. |
| * |
| * @since 2.0 |
| */ |
| public class NoSuchPageTag extends WikiTagBase { |
| |
| private static final long serialVersionUID = 0L; |
| |
| private String m_pageName; |
| |
| @Override public void initTag() { |
| super.initTag(); |
| m_pageName = null; |
| } |
| |
| public void setPage( final String name ) |
| { |
| m_pageName = name; |
| } |
| |
| public String getPage() |
| { |
| return m_pageName; |
| } |
| |
| @Override public int doWikiStartTag() throws IOException, ProviderException { |
| final Engine engine = m_wikiContext.getEngine(); |
| final WikiPage page; |
| |
| if( m_pageName == null ) { |
| page = m_wikiContext.getPage(); |
| } else { |
| page = engine.getManager( PageManager.class ).getPage( m_pageName ); |
| } |
| |
| if( page != null && engine.getManager( PageManager.class ).wikiPageExists( page.getName(), page.getVersion() ) ) { |
| return SKIP_BODY; |
| } |
| |
| return EVAL_BODY_INCLUDE; |
| } |
| } |