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Java > Open Source Codes > net > myvietnam > mvncore > interceptor > sample > NoBadLoginIDInterceptor


1 /*
2  * $Header: /cvsroot/mvnforum/myvietnam/src/net/myvietnam/mvncore/interceptor/sample/NoBadLoginIDInterceptor.java,v 1.5 2006/04/15 02:59:19 minhnn Exp $
3  * $Author: minhnn $
4  * $Revision: 1.5 $
5  * $Date: 2006/04/15 02:59:19 $
6  *
7  * ====================================================================
8  *
9  * Copyright (C) 2002-2006 by MyVietnam.net
10  *
11  * All copyright notices regarding MyVietnam and MyVietnam CoreLib
12  * MUST remain intact in the scripts and source code.
13  *
14  * This library is free software; you can redistribute it and/or
15  * modify it under the terms of the GNU Lesser General Public
16  * License as published by the Free Software Foundation; either
17  * version 2.1 of the License, or (at your option) any later version.
18  *
19  * This library is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this library; if not, write to the Free Software
26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27  *
28  * Correspondence and Marketing Questions can be sent to:
29  * info at MyVietnam net
30  *
31  * @author: Minh Nguyen
32  */
33 package net.myvietnam.mvncore.interceptor.sample;
34
35 import net.myvietnam.mvncore.interceptor.LoginIDInterceptor;
36 import net.myvietnam.mvncore.exception.InterceptorException;
37
38 /**
39  * This sample LoginIDInterceptor show how to check that user cannot
40  * use bad login id such as sex (vulgar) or administrator (to confuse users)
41  * to use the system. This class
42  * show simple method for checking but for real case you should build
43  * a list of not-allowed loginID and use other data struture for efficiency
44  * You can based on this sample to write your own LoginIDInterceptor.
45  */
46 public class NoBadLoginIDInterceptor implements LoginIDInterceptor {
47
48     public NoBadLoginIDInterceptor() {
49     }
50
51     /**
52      * In this sample interceptor, it check that loginID is good or bad
53      *
54      * @param loginID String loginID to be validated
55      * @throws InterceptorException
56      */
57     public void validateLoginID(String JavaDoc loginID) throws InterceptorException {
58         loginID = loginID.toLowerCase();
59         if (loginID.equals("sex") ||
60             loginID.equals("moderator") ||
61             loginID.equals("administrator") ) {
62             throw new InterceptorException("Cannot accept this loginID. Your loginID = " + loginID);
63         }
64     }
65 }
66
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