| /* |
| * 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.myfaces.trinidaddemo.webapp; |
| |
| import java.io.IOException; |
| |
| import javax.servlet.Filter; |
| import javax.servlet.FilterChain; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| /** |
| * Servlet filter that ensures the FacesServlet is called before rendering |
| * the page. Most useful for getting JSP Faces pages to work correctly. |
| * <p> |
| * @version $Name: $ ($Revision: adfrt/faces/adf-faces-demo/src/main/java/oracle/adfdemo/view/faces/webapp/RedirectFilter.java#1 $) $Date: 16-aug-2005.15:12:33 $ |
| */ |
| public class RedirectFilter implements Filter |
| { |
| public static final String URL_PATTERN_PARAM = "faces-servlet-url-pattern"; |
| public static final String DEFAULT_URL_PATTERN = "/faces/*"; |
| |
| public void init( |
| FilterConfig filterConfig) throws ServletException |
| { |
| String pattern = filterConfig.getInitParameter(URL_PATTERN_PARAM); |
| |
| if (pattern == null) |
| pattern = DEFAULT_URL_PATTERN; |
| |
| int offset = pattern.indexOf('*'); |
| if (offset > 1 && pattern.charAt(offset - 1) == '/') |
| offset--; |
| |
| _servletPath = pattern.substring(0, offset); |
| } |
| |
| public void destroy() |
| { |
| // Technically, we should dump _servletPath. However, |
| // OC4J is calling destroy(), then not calling init() before |
| // using the Filter again! So ignore destroy(). |
| // _servletPath = null; |
| } |
| |
| public void doFilter( |
| ServletRequest request, |
| ServletResponse response, |
| FilterChain chain) throws IOException, ServletException |
| { |
| if (request instanceof HttpServletRequest) |
| { |
| HttpServletRequest httpRequest = (HttpServletRequest) request; |
| String servletPath = httpRequest.getServletPath(); |
| if (!servletPath.startsWith(_servletPath)) |
| { |
| servletPath = _servletPath + servletPath; |
| String pathInfo = httpRequest.getPathInfo(); |
| String queryString = httpRequest.getQueryString(); |
| // Use a client-side redirect |
| String url = |
| (httpRequest.getContextPath() + |
| servletPath + |
| (pathInfo == null ? "": pathInfo) + |
| (queryString == null ? "": queryString)); |
| |
| // Use a client-side redirect so that filters will run |
| ((HttpServletResponse) response).sendRedirect(url); |
| /* |
| request.getRequestDispatcher(servletPath). |
| forward(request, response); |
| */ |
| return; |
| } |
| } |
| |
| chain.doFilter(request, response); |
| } |
| |
| private String _servletPath; |
| } |