blob: 22d5d2f1faf11f19331fc999492201d204304095 [file] [log] [blame]
/*
* 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;
}