001 package org.apache.myfaces.tobago.servlet;
002
003 /*
004 * Licensed to the Apache Software Foundation (ASF) under one or more
005 * contributor license agreements. See the NOTICE file distributed with
006 * this work for additional information regarding copyright ownership.
007 * The ASF licenses this file to You under the Apache License, Version 2.0
008 * (the "License"); you may not use this file except in compliance with
009 * the License. You may obtain a copy of the License at
010 *
011 * http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019
020 import org.apache.commons.logging.Log;
021 import org.apache.commons.logging.LogFactory;
022 import org.apache.myfaces.tobago.config.Attribute;
023 import org.apache.myfaces.tobago.config.MappingRule;
024 import org.apache.myfaces.tobago.config.TobagoConfig;
025
026 import javax.faces.context.FacesContext;
027 import javax.servlet.RequestDispatcher;
028 import javax.servlet.ServletException;
029 import javax.servlet.ServletRequest;
030 import javax.servlet.http.HttpServlet;
031 import javax.servlet.http.HttpServletRequest;
032 import javax.servlet.http.HttpServletResponse;
033 import java.io.IOException;
034 import java.util.Iterator;
035
036 /**
037 * @deprecated Please use JSP 2.0 tag-files or an other template mechanism.
038 */
039 @Deprecated
040 public class TemplateServlet extends HttpServlet {
041
042 private static final long serialVersionUID = -646440036923109210L;
043
044 private static final Log LOG = LogFactory.getLog(TemplateServlet.class);
045
046 public void service(
047 HttpServletRequest request, HttpServletResponse response)
048 throws ServletException, IOException {
049
050 String viewId = request.getRequestURI().substring(
051 request.getContextPath().length());
052
053 if (LOG.isDebugEnabled()) {
054 LOG.debug("viewId = '" + viewId + "'");
055 }
056 String requestUri = remap(request, viewId);
057 if (LOG.isDebugEnabled()) {
058 LOG.debug("requestUri = '" + requestUri + "'");
059 }
060
061 if (requestUri.endsWith(".view")) { // TODO: make .view configurable
062 String error = "cannot find URI in config file: '" + requestUri + "'";
063 LOG.error(error);
064 throw new ServletException(error);
065 }
066
067 if (LOG.isDebugEnabled()) {
068 LOG.debug("requestUri = '" + requestUri + "'");
069 }
070
071 try {
072 RequestDispatcher dispatcher = request.getRequestDispatcher(requestUri);
073 dispatcher.forward(request, response);
074 } catch (IOException e) {
075 LOG.error("requestUri '" + requestUri + "' "
076 + "viewId '" + viewId + "' ", e);
077 throw e;
078 } catch (ServletException e) {
079 LOG.error("requestUri '" + requestUri + "' "
080 + "viewId '" + viewId + "' ", e);
081 throw e;
082 }
083 }
084
085 private String remap(ServletRequest request, String requestURI) {
086 FacesContext facesContext = FacesContext.getCurrentInstance();
087 TobagoConfig config = TobagoConfig.getInstance(facesContext);
088 MappingRule mappingRule = config.getMappingRule(requestURI);
089 if (mappingRule == null) {
090 return requestURI;
091 }
092 for (Iterator i = mappingRule.getAttributes().iterator(); i.hasNext();) {
093 Attribute attribute = (Attribute) i.next();
094 request.setAttribute(attribute.getKey(), attribute.getValue());
095 }
096 return mappingRule.getForwardUri();
097 }
098
099 }