| /* |
| * Copyright 1999, 2000 ,2004 The Apache Software Foundation. |
| * |
| * Licensed 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.tester; |
| |
| |
| import java.io.*; |
| import java.util.*; |
| import javax.servlet.*; |
| import javax.servlet.http.*; |
| |
| /** |
| * Configurable filter that will wrap the request and/or response objects |
| * it passes on with either generic or HTTP-specific wrappers. |
| * |
| * @author Craig R. McClanahan |
| * @version $Revision$ $Date$ |
| */ |
| |
| public class WrapperFilter implements Filter { |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| |
| |
| // ----------------------------------------------------- Instance Variables |
| |
| |
| /** |
| * The filter configuration object for this filter. |
| */ |
| protected FilterConfig config = null; |
| |
| |
| /** |
| * The type of wrapper for each request ("none", "generic", "http"). |
| */ |
| protected String requestWrapper = "none"; |
| |
| |
| /** |
| * The type of wrapper for each response ("none", "generic", "http"). |
| */ |
| protected String responseWrapper = "none"; |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Release this Filter instance from service. |
| */ |
| public void destroy() { |
| |
| config = null; |
| requestWrapper = "none"; |
| responseWrapper = "none"; |
| |
| } |
| |
| |
| /** |
| * Wrap this request and/or response as configured and pass it on. |
| */ |
| public void doFilter(ServletRequest inRequest, ServletResponse inResponse, |
| FilterChain chain) |
| throws IOException, ServletException { |
| |
| // Create the appropriate wrappers |
| ServletRequest outRequest = inRequest; |
| ServletResponse outResponse = inResponse; |
| if (requestWrapper.equals("generic")) { |
| outRequest = new TesterServletRequestWrapper(inRequest); |
| } else if (requestWrapper.equals("http")) { |
| outRequest = new TesterHttpServletRequestWrapper |
| ((HttpServletRequest) inRequest); |
| } |
| if (responseWrapper.equals("generic")) { |
| outResponse = new TesterServletResponseWrapper(inResponse); |
| } else if (responseWrapper.equals("http")) { |
| outResponse = new TesterHttpServletResponseWrapper |
| ((HttpServletResponse) inResponse); |
| } |
| |
| // Perform this request |
| chain.doFilter(outRequest, outResponse); |
| |
| } |
| |
| |
| /** |
| * Place this Filter instance into service. |
| * |
| * @param config The filter configuration object |
| */ |
| public void init(FilterConfig config) throws ServletException { |
| |
| this.config = config; |
| String value = null; |
| value = config.getInitParameter("request"); |
| if (value != null) |
| requestWrapper = value; |
| value = config.getInitParameter("response"); |
| if (value != null) |
| responseWrapper = value; |
| |
| } |
| |
| |
| } |