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 package org.apache.struts.webapp.validator;
23
24 import jakarta.servlet.http.HttpServletRequest;
25 import jakarta.servlet.http.HttpServletResponse;
26 import jakarta.servlet.http.HttpSession;
27
28 import org.apache.struts.action.Action;
29 import org.apache.struts.action.ActionForm;
30 import org.apache.struts.action.ActionForward;
31 import org.apache.struts.action.ActionMapping;
32 import org.apache.struts.action.ActionMessages;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
35
36 /**
37 * Implementation of <strong>Action</strong> that validates a multi-page
38 * registration form.
39 *
40 */
41 public final class MultiRegistrationAction extends Action {
42 private static final long serialVersionUID = -4985230580396174675L;
43
44 /**
45 * The {@code Log} instance for this class.
46 */
47 private final static Logger LOG =
48 LoggerFactory.getLogger(MultiRegistrationAction.class);
49
50 /**
51 * Process the specified HTTP request, and create the corresponding HTTP
52 * response (or forward to another web component that will create it).
53 * Return an <code>ActionForward</code> instance describing where and how
54 * control should be forwarded, or <code>null</code> if the response has
55 * already been completed.
56 *
57 * @param mapping The ActionMapping used to select this instance
58 * @param form The optional ActionForm bean for this request (if any)
59 * @param request The HTTP request we are processing
60 * @param response The HTTP response we are creating
61 *
62 * @exception Exception if an input/output error or servlet exception occurs
63 */
64 public ActionForward execute(
65 ActionMapping mapping,
66 ActionForm form,
67 HttpServletRequest request,
68 HttpServletResponse response)
69 throws Exception {
70
71 // Extract attributes we will need
72 RegistrationForm info = (RegistrationForm) form;
73
74
75 // Was this transaction cancelled?
76 if (isCancelled(request)) {
77 LOG.info(" {} - Registration transaction was cancelled",
78 mapping.getAttribute());
79
80 removeFormBean(mapping, request);
81
82 return mapping.findForward("success");
83 }
84
85 ActionMessages errors = info.validate(mapping, request);
86
87 if (errors != null && errors.isEmpty()) {
88 if (info.getPage() == 1)
89 return mapping.findForward("input2");
90
91 if (info.getPage() == 2)
92 return mapping.findForward("success");
93
94 } else {
95 this.saveErrors(request, errors);
96
97 if (info.getPage() == 1){
98 return mapping.findForward("input" + info.getPage());
99 }
100
101 if (info.getPage() == 2){
102 return mapping.findForward("input" + info.getPage());
103 }
104 }
105
106 return mapping.findForward("input1");
107 }
108
109 /**
110 * Convenience method for removing the obsolete form bean.
111 *
112 * @param mapping The ActionMapping used to select this instance
113 * @param request The HTTP request we are processing
114 */
115 protected void removeFormBean(
116 ActionMapping mapping,
117 HttpServletRequest request) {
118
119 // Remove the obsolete form bean
120 if (mapping.getAttribute() != null) {
121 if ("request".equals(mapping.getScope())) {
122 request.removeAttribute(mapping.getAttribute());
123 } else {
124 HttpSession session = request.getSession();
125 session.removeAttribute(mapping.getAttribute());
126 }
127 }
128 }
129 }