| /******************************************************************************* |
| * 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.ofbiz.ecommerce.webapp.view; |
| |
| import java.io.IOException; |
| import java.net.URLEncoder; |
| |
| import javax.servlet.RequestDispatcher; |
| import javax.servlet.ServletContext; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import javax.servlet.jsp.JspException; |
| |
| import org.apache.ofbiz.base.util.Debug; |
| import org.apache.ofbiz.base.util.UtilValidate; |
| import org.apache.ofbiz.webapp.control.ControlFilter; |
| import org.apache.ofbiz.webapp.view.AbstractViewHandler; |
| import org.apache.ofbiz.webapp.view.ViewHandlerException; |
| |
| /** |
| * JspViewHandler - Java Server Pages View Handler |
| */ |
| public class JspViewHandler extends AbstractViewHandler { |
| |
| public static final String module = JspViewHandler.class.getName(); |
| |
| protected ServletContext context; |
| |
| public void init(ServletContext context) throws ViewHandlerException { |
| this.context = context; |
| } |
| |
| public void render(String name, String page, String contentType, String encoding, String info, HttpServletRequest request, HttpServletResponse response) throws ViewHandlerException { |
| // some containers call filters on EVERY request, even forwarded ones, |
| // so let it know that it came from the control servlet |
| |
| if (request == null) { |
| throw new ViewHandlerException("Null HttpServletRequest object"); |
| } |
| if (UtilValidate.isEmpty(page)) { |
| throw new ViewHandlerException("Null or empty source"); |
| } |
| |
| // Debug.logInfo("Requested Page : " + page, module); |
| // Debug.logInfo("Physical Path : " + context.getRealPath(page)); |
| |
| // tell the ControlFilter we are forwarding |
| request.setAttribute(ControlFilter.FORWARDED_FROM_SERVLET, Boolean.TRUE); |
| RequestDispatcher rd = request.getRequestDispatcher(page); |
| |
| if (rd == null) { |
| Debug.logInfo("HttpServletRequest.getRequestDispatcher() failed; trying ServletContext", module); |
| rd = context.getRequestDispatcher(page); |
| if (rd == null) { |
| Debug.logInfo("ServletContext.getRequestDispatcher() failed; trying ServletContext.getNamedDispatcher(\"jsp\")", module); |
| rd = context.getNamedDispatcher("jsp"); |
| if (rd == null) { |
| throw new ViewHandlerException("Source returned a null dispatcher (" + page + ")"); |
| } |
| } |
| } |
| |
| try { |
| if (UtilValidate.isEmpty(request.getServletPath())) { |
| // no context or filter to service this page, so we have to forward it directly and let SeoControlServlet to resolve it |
| String uri = URLEncoder.encode(request.getContextPath() + page, "UTF-8"); |
| request.setAttribute("_jsp_" + uri, Boolean.TRUE); |
| rd.forward(request, response); |
| } else { |
| rd.include(request, response); |
| } |
| } catch (IOException ie) { |
| throw new ViewHandlerException("IO Error in view", ie); |
| } catch (ServletException e) { |
| Throwable throwable = e.getRootCause() != null ? e.getRootCause() : e; |
| |
| if (throwable instanceof JspException) { |
| JspException jspe = (JspException) throwable; |
| |
| throwable = jspe.getCause() != null ? jspe.getCause() : jspe; |
| } |
| Debug.logError(throwable, "ServletException rendering JSP view", module); |
| throw new ViewHandlerException(e.getMessage(), throwable); |
| } |
| } |
| } |