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


1 /*
2  * $Id: DeleteCommentExecAction.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.CommentDAO;
32 import com.j2biz.blogunity.exception.BlogunityException;
33 import com.j2biz.blogunity.i18n.I18N;
34 import com.j2biz.blogunity.i18n.I18NStatusFactory;
35 import com.j2biz.blogunity.pojo.Comment;
36 import com.j2biz.blogunity.pojo.Entry;
37 import com.j2biz.blogunity.web.IActionResult;
38
39 /**
40  * @author michelson
41  * @version $$
42  * @since 0.1
43  *
44  *
45  */
46 public class DeleteCommentExecAction extends MyAbstractAction {
47
48     /*
49      * (non-Javadoc)
50      *
51      * @see com.j2biz.blogunity.web.actions.AbstractAction#execute(javax.servlet.http.HttpServletRequest,
52      * javax.servlet.http.HttpServletResponse)
53      */
54     public IActionResult execute(HttpServletRequest JavaDoc request, HttpServletResponse JavaDoc response)
55             throws BlogunityException {
56
57         String JavaDoc id = request.getParameter("id");
58         CommentDAO dao = new CommentDAO();
59         Comment comment = dao.getCommentByID(Long.parseLong(id));
60         Entry entry = comment.getCommentedEntry();
61
62         /*
63          * delete comment is allow only, if: 1. current user is the system
64          * administrator 2. current user is the author of the comment 3. current
65          * user is the author of the commented entry 4. current user is the
66          * founder of the commented entry's blog
67          *
68          */
69
70         if (!(user.isAdministrator() // 1
71 || comment.getAuthor().getId().longValue() == user.getId().longValue() //2
72 || comment.getCommentedEntry().getAuthor().getId().longValue() == user.getId()
73                         .longValue() //3
74 || comment.getCommentedEntry().getBlog().getFounder().getId().longValue() == user.getId()
75                 .longValue() //4
76
77         )) { throw new BlogunityException(I18NStatusFactory
78                 .create(I18N.ERRORS.USER_NOT_AUTHORIZED_FOR_EXECUTION)); }
79
80         // remove requested comment and all it's sub-comments
81
82         dao.deleteCommentWithAllSubComments(comment);
83
84         navigationStack.pop();
85         return navigationStack.peek();
86     }
87
88 }
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