1 /*
2 * $Id$
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22
23 package org.apache.struts.webapp.example;
24
25
26 import java.lang.reflect.InvocationTargetException;
27
28 import jakarta.servlet.ServletException;
29 import jakarta.servlet.http.HttpServletRequest;
30 import jakarta.servlet.http.HttpServletResponse;
31 import jakarta.servlet.http.HttpSession;
32
33 import org.apache.commons.beanutils.PropertyUtils;
34 import org.apache.struts.action.Action;
35 import org.apache.struts.action.ActionForm;
36 import org.apache.struts.action.ActionForward;
37 import org.apache.struts.action.ActionMapping;
38 import org.apache.struts.apps.mailreader.dao.User;
39 import org.slf4j.Logger;
40 import org.slf4j.LoggerFactory;
41
42
43 /**
44 * Implementation of <strong>Action</strong> that populates an instance of
45 * <code>RegistrationForm</code> from the profile of the currently logged on
46 * User (if any).
47 *
48 * @author Craig R. McClanahan
49 * @version $Rev$ $Date$
50 */
51
52 public final class EditRegistrationAction extends Action {
53 private static final long serialVersionUID = 999725197962195314L;
54
55
56 // ----------------------------------------------------- Instance Variables
57
58
59 /**
60 * The {@code Log} instance for this class.
61 */
62 private final static Logger LOG =
63 LoggerFactory.getLogger(EditRegistrationAction.class);
64
65
66 // --------------------------------------------------------- Public Methods
67
68
69 /**
70 * Process the specified HTTP request, and create the corresponding HTTP
71 * response (or forward to another web component that will create it).
72 * Return an <code>ActionForward</code> instance describing where and how
73 * control should be forwarded, or <code>null</code> if the response has
74 * already been completed.
75 *
76 * @param mapping The ActionMapping used to select this instance
77 * @param form The optional ActionForm bean for this request (if any)
78 * @param request The HTTP request we are processing
79 * @param response The HTTP response we are creating
80 *
81 * @exception Exception if the application business logic throws
82 * an exception
83 */
84 public ActionForward execute(ActionMapping mapping,
85 ActionForm form,
86 HttpServletRequest request,
87 HttpServletResponse response)
88 throws Exception {
89
90 // Extract attributes we will need
91 HttpSession session = request.getSession();
92 String action = request.getParameter("action");
93 if (action == null)
94 action = "Create";
95 LOG.debug("EditRegistrationAction: Processing {} action",
96 action);
97
98 // Is there a currently logged on user?
99 User user = null;
100 if (!"Create".equals(action)) {
101 user = (User) session.getAttribute(Constants.USER_KEY);
102 if (user == null) {
103 LOG.debug(" User is not logged on in session {}",
104 session.getId());
105 return (mapping.findForward("logon"));
106 }
107 }
108
109 // Populate the user registration form
110 if (form == null) {
111 LOG.trace(" Creating new RegistrationForm bean under key {}",
112 mapping.getAttribute());
113 form = new RegistrationForm();
114 if ("request".equals(mapping.getScope()))
115 request.setAttribute(mapping.getAttribute(), form);
116 else
117 session.setAttribute(mapping.getAttribute(), form);
118 }
119 RegistrationForm regform = (RegistrationForm) form;
120 if (user != null) {
121 LOG.trace(" Populating form from {}", user);
122 try {
123 PropertyUtils.copyProperties(regform, user);
124 regform.setAction(action);
125 regform.setPassword(null);
126 regform.setPassword2(null);
127 } catch (InvocationTargetException e) {
128 Throwable t = e.getTargetException();
129 if (t == null)
130 t = e;
131 LOG.error("RegistrationForm.populate", t);
132 throw new ServletException("RegistrationForm.populate", t);
133 } catch (Throwable t) {
134 LOG.error("RegistrationForm.populate", t);
135 throw new ServletException("RegistrationForm.populate", t);
136 }
137 }
138
139 // Set a transactional control token to prevent double posting
140 LOG.trace(" Setting transactional control token");
141 saveToken(request);
142
143 // Forward control to the edit user registration page
144 LOG.trace(" Forwarding to 'success' page");
145 return (mapping.findForward("success"));
146
147 }
148 }