| /* |
| 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; |
| |
| import net.sf.ehcache.CacheManager; |
| import org.apache.log4j.Logger; |
| import org.apache.wiki.url.DefaultURLConstructor; |
| |
| import javax.servlet.RequestDispatcher; |
| import javax.servlet.ServletConfig; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import java.io.IOException; |
| |
| |
| /** |
| * This provides a master servlet for dealing with short urls. It mostly does |
| * redirects to the proper JSP pages. It also intercepts the servlet |
| * shutdown events and uses it to signal wiki shutdown. |
| * |
| * @since 2.2 |
| */ |
| public class WikiServlet extends HttpServlet { |
| |
| private static final long serialVersionUID = 3258410651167633973L; |
| private WikiEngine m_engine; |
| private static final Logger log = Logger.getLogger( WikiServlet.class.getName() ); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void init( final ServletConfig config ) throws ServletException { |
| super.init( config ); |
| m_engine = WikiEngine.getInstance( config ); |
| log.info( "WikiServlet initialized." ); |
| } |
| |
| /** |
| * Destroys the WikiServlet; called by the servlet container |
| * when shutting down the webapp. This method calls the |
| * protected method {@link WikiEngine#shutdown()}, which |
| * sends {@link org.apache.wiki.event.WikiEngineEvent#SHUTDOWN} |
| * events to registered listeners. |
| * |
| * @see javax.servlet.GenericServlet#destroy() |
| */ |
| @Override |
| public void destroy() { |
| log.info( "WikiServlet shutdown." ); |
| CacheManager.getInstance().shutdown(); |
| m_engine.shutdown(); |
| super.destroy(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void doPost( final HttpServletRequest req, final HttpServletResponse res ) throws IOException, ServletException { |
| doGet( req, res ); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void doGet( final HttpServletRequest req, final HttpServletResponse res ) throws IOException, ServletException { |
| String pageName = DefaultURLConstructor.parsePageFromURL( req, m_engine.getContentEncoding() ); |
| |
| log.info( "Request for page: " + pageName ); |
| if( pageName == null ) { |
| pageName = m_engine.getFrontPage(); // FIXME: Add special pages as well |
| } |
| |
| final String jspPage = m_engine.getURLConstructor().getForwardPage( req ); |
| final RequestDispatcher dispatcher = req.getRequestDispatcher( "/" + jspPage + "?page=" + |
| m_engine.encodeName( pageName ) + "&" + req.getQueryString() ); |
| |
| dispatcher.forward( req, res ); |
| } |
| |
| } |