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Java > Open Source Codes > com > j2biz > blogunity > web > actions > my > AddFriendAction


1 /*
2  * $Id: AddFriendAction.java,v 1.4 2005/01/17 21:35:45 michelson Exp $
3  *
4  * Copyright (c) 2004 j2biz Group, http://www.j2biz.com
5  * Koeln / Duesseldorf , Germany
6  *
7  * @author Max Kalina
8  *
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23  *
24  */
25
26 package com.j2biz.blogunity.web.actions.my;
27
28 import javax.servlet.http.HttpServletRequest JavaDoc;
29 import javax.servlet.http.HttpServletResponse JavaDoc;
30
31 import com.j2biz.blogunity.dao.UserDAO;
32 import com.j2biz.blogunity.exception.BlogunityException;
33 import com.j2biz.blogunity.pojo.User;
34 import com.j2biz.blogunity.web.ActionResultFactory;
35 import com.j2biz.blogunity.web.FormError;
36 import com.j2biz.blogunity.web.FormErrorList;
37 import com.j2biz.blogunity.web.IActionResult;
38
39 /**
40  *
41  * @author michelson
42  * @version $$
43  * @since 0.1
44  *
45  *
46  */
47 public class AddFriendAction extends MyAbstractAction {
48
49     private static final IActionResult ADD_SUCCESS_REDIRECT = ActionResultFactory
50             .buildRedirect("/my/friendsList");
51
52     private static final IActionResult ADD_ERROR_FORWARD = ActionResultFactory
53             .buildForward("/jsp/my/friends.jsp");
54
55     /*
56      * (non-Javadoc)
57      *
58      * @see com.j2biz.blogunity.web.actions.AbstractAction#execute(javax.servlet.http.HttpServletRequest,
59      * javax.servlet.http.HttpServletResponse)
60      */
61     public IActionResult execute(HttpServletRequest JavaDoc request, HttpServletResponse JavaDoc response)
62             throws BlogunityException {
63
64         String JavaDoc nickname = request.getParameter("nickname");
65         FormErrorList errors = new FormErrorList();
66
67         UserDAO userDAO = new UserDAO();
68
69         User u;
70         try {
71             u = userDAO.getUserByName(nickname);
72         } catch (Exception JavaDoc e) {
73             u = null;
74         }
75
76         if (u == null) {
77             errors.add(new FormError("nickname", "User '" + nickname + "' not found!"));
78         } else if (user.getFriends().contains(u)) {
79             errors.add(new FormError("nickname", "This user is already in your friends-list!"));
80         }
81
82         if (errors.size() > 0) {
83             request.setAttribute("friends", user.getFriends());
84             request.setAttribute("errors", errors);
85             return ADD_ERROR_FORWARD;
86         }
87
88         user.addFriend(u);
89         userDAO.updateUser(user);
90
91         return ADD_SUCCESS_REDIRECT;
92
93     }
94
95 }
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