1 /*
2 * Scope: a generic MVC framework.
3 * Copyright (c) 2000-2002, The Scope team
4 * All rights reserved.
5 *
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * Neither the name "Scope" nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
27 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
28 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
29 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 *
36 * $Id: LoginController.java,v 1.4 2002/09/05 15:41:48 ludovicc Exp $
37 */
38 package samples.helloworld3;
39
40
41 import org.scopemvc.controller.basic.BasicController;
42 import org.scopemvc.core.Control;
43 import org.scopemvc.core.ControlException;
44
45 /***
46 * @author <A HREF="mailto:smeyfroi@users.sourceforge.net">Steve Meyfroidt</A>
47 * @created 05 September 2002
48 * @version $Revision: 1.4 $ $Date: 2002/09/05 15:41:48 $
49 */
50 public class LoginController extends BasicController {
51
52 /***
53 * A Control ID.
54 */
55 public final static String VALIDATE_LOGIN = "Login";
56
57 /***
58 * A Control ID to be recognised by parent Controller.
59 */
60 public final static String LOGIN_OK = "login_ok";
61
62
63 /***
64 * Constructor for the LoginController object
65 */
66 public LoginController() {
67 setModel(new LoginModel());
68 setView(new LoginView());
69 }
70
71
72 /***
73 * TODO: document the method
74 */
75 public void startup() {
76 showView();
77 }
78
79
80 /***
81 * Respond to VALIDATE_LOGIN.
82 *
83 * @param inControl TODO: Describe the Parameter
84 * @throws ControlException TODO: Describe the Exception
85 */
86 protected void doHandleControl(Control inControl) throws ControlException {
87 if (inControl.matchesID(VALIDATE_LOGIN)) {
88 doValidateLogin();
89 }
90 }
91
92
93 /***
94 * On VALIDATE_LOGIN check the username/password and either throw a
95 * ControlException or issue a LOGIN_OK Control to be caught by this
96 * Controller's parent up the chain of responsibility. Consider Controls
97 * that issue from a Controller in this way to be part of the public API of
98 * the Controller.
99 *
100 * @throws ControlException TODO: Describe the Exception
101 */
102 protected void doValidateLogin() throws ControlException {
103 // Delay to see busy cursor
104 try {
105 Thread.currentThread().sleep(1000);
106 } catch (InterruptedException e) {}
107
108 if (((LoginModel) getModel()).isValidUser()) {
109 hideView();
110 handleControl(new Control(LOGIN_OK));
111 } else {
112 showError("Failed validation", "Incorrect username and/or password.\nTry again with username 'Trevor' and password 'Cat'");
113 }
114 }
115 }
116
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