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


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.util.regex.Pattern JavaDoc;
23  
24 /**
25  * A validator for hostname / ipaddress and port strings in the format
26  * <i>hostname</i> or <i>ipAddress</i>. The string may also contain
27  * replacement variables.
28  *
29  * @author James Robinson <a HREF="mailto: james@3sp.com">&lt;james@3sp.com&gt;</a>
30  */
31 public class HostnameOrIPAddressWithReplacementsValidator extends StringValidator {
32     
33     private static final int MAX_HOST_OR_IP_CHARS = 255;
34     /**
35      * Regular expression for a string in the format <i>hostname</i> or
36      * <i>ipAddress</i>. May also contain replacement variables
37      */
38     final static String JavaDoc HOST_PATTERN = "^[a-zA-Z0-9\\.\\-\\_\\{\\}\\:\\$]*";
39
40     /**
41      * Constructor.
42      */
43     public HostnameOrIPAddressWithReplacementsValidator() {
44         super(1, MAX_HOST_OR_IP_CHARS, HOST_PATTERN, null, true);
45         this.regExpErrCode = ErrorConstants.ERR_STRING_ISNT_HOSTNAME_OR_IPADDRESS;
46     }
47
48     /**
49      * Static method which validates a host or IP.
50      *
51      * @param value
52      * @return boolean
53      */
54     public static boolean isValidAsHostOrIp(String JavaDoc value){
55         if (value.length() > MAX_HOST_OR_IP_CHARS)
56             return false;
57         else
58             return Pattern.compile(HOST_PATTERN).matcher(value).matches();
59     }
60
61 }
62
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