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 examples.multibox;
23
24 import jakarta.servlet.http.HttpServletRequest;
25 import jakarta.servlet.http.HttpServletResponse;
26
27 import org.apache.struts.action.Action;
28 import org.apache.struts.action.ActionForm;
29 import org.apache.struts.action.ActionForward;
30 import org.apache.struts.action.ActionMapping;
31
32 /**
33 * Perform any tasks and setup any data that
34 * must be prepared before the form is displayed.
35 *
36 * @version $Rev$ $Date$
37 */
38 public class PrepareMultiboxAction extends Action {
39 private static final long serialVersionUID = 5055393276157457523L;
40
41 // ------------------------------------------------------------ Constructors
42
43 /**
44 * Constructor for PrepareOptionsAction.
45 */
46 public PrepareMultiboxAction() {
47 super();
48 }
49
50 // ---------------------------------------------------------- Action Methods
51
52 /**
53 * Process the request and return an <code>ActionForward</code> instance
54 * describing where and how control should be forwarded, or
55 * <code>null</code>if the response has 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 exception occurs
63 *
64 * @return the ActionForward to forward control to
65 */
66 public ActionForward execute(
67 ActionMapping mapping,
68 ActionForm form,
69 HttpServletRequest request,
70 HttpServletResponse response)
71 throws Exception {
72
73 System.out.println("Prepare MultiboxActionForm ....");
74
75 /*
76 * Prepare a String array of color names used to generate
77 * checkboxes using html:multibox tags in the JSP page.
78 */
79 String[] colors =
80 { "Red", "Orange", "Yellow", "Green", "Blue", "Indigo", "Violet" };
81 request.setAttribute("colors", colors);
82
83 /*
84 * Set default checkbox values.
85 */
86 String[] defaultFruits = { "Orange", "Banana", "Apple" };
87 String[] defaultColors = { "Orange", "Yellow" };
88 MultiboxActionForm multiboxForm = (MultiboxActionForm) form;
89 multiboxForm.setFruits(defaultFruits);
90 multiboxForm.setColors(defaultColors);
91
92 // Return an ActionForward to the form
93 return mapping.findForward("success");
94 }
95 }