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Java > Open Source Codes > com > sslexplorer > input > validators > AsciiValidator


1 /*
2  * SSL-Explorer
3  *
4  * Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2 of
9  * the License, or (at your option) any later version.
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18  */

19             
20 package com.sslexplorer.input.validators;
21
22 import java.io.UnsupportedEncodingException JavaDoc;
23 import java.net.URLEncoder JavaDoc;
24 import java.util.Properties JavaDoc;
25
26 import com.sslexplorer.boot.CodedException;
27 import com.sslexplorer.boot.PropertyDefinition;
28 import com.sslexplorer.boot.PropertyValidator;
29 import com.sslexplorer.core.CoreException;
30
31 /**
32  * Ensures that the String only contains ASCII characters.
33  */

34 public class AsciiValidator implements PropertyValidator {
35     private static final String JavaDoc UTF_8 = "UTF-8";
36     
37     public void validate(PropertyDefinition definition, String JavaDoc value, Properties JavaDoc properties) throws CodedException {
38         assertIsAscii(value);
39     }
40     
41     private static void assertIsAscii (String JavaDoc value) throws CodedException {
42         try {
43             if (!value.equals(URLEncoder.encode(value, UTF_8))) {
44                 throw new CoreException(ErrorConstants.ERR_STRING_NON_ASCII, ErrorConstants.CATEGORY_NAME, ErrorConstants.BUNDLE_NAME, null, value);
45             }
46         } catch (UnsupportedEncodingException JavaDoc e) {
47             // ignore, this just isn't going to happen
48
}
49     }
50 }
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