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Java > Open Source Codes > org > columba > ristretto > imap > parser > ListInfoParser


1 /* ***** BEGIN LICENSE BLOCK *****
2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3  *
4  * The contents of this file are subject to the Mozilla Public License Version
5  * 1.1 (the "License"); you may not use this file except in compliance with
6  * the License. You may obtain a copy of the License at
7  * http://www.mozilla.org/MPL/
8  *
9  * Software distributed under the License is distributed on an "AS IS" basis,
10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11  * for the specific language governing rights and limitations under the
12  * License.
13  *
14  * The Original Code is Ristretto Mail API.
15  *
16  * The Initial Developers of the Original Code are
17  * Timo Stich and Frederik Dietz.
18  * Portions created by the Initial Developers are Copyright (C) 2004
19  * All Rights Reserved.
20  *
21  * Contributor(s):
22  *
23  * Alternatively, the contents of this file may be used under the terms of
24  * either the GNU General Public License Version 2 or later (the "GPL"), or
25  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26  * in which case the provisions of the GPL or the LGPL are applicable instead
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32  * the provisions above, a recipient may use your version of this file under
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34  *
35  * ***** END LICENSE BLOCK ***** */
36 package org.columba.ristretto.imap.parser;
37
38 import java.util.regex.Matcher JavaDoc;
39 import java.util.regex.Pattern JavaDoc;
40
41 import org.columba.ristretto.imap.IMAPResponse;
42 import org.columba.ristretto.imap.ListInfo;
43 import org.columba.ristretto.imap.MailboxNameUTF7Converter;
44 import org.columba.ristretto.parser.ParserException;
45
46 /**
47  * @author frd
48  *
49  * To change the template for this generated type comment go to
50  * Window - Preferences - Java - Code Generation - Code and Comments
51  */
52 public class ListInfoParser {
53
54     // example : * LIST () NIL testbox\r\n
55 private static final Pattern JavaDoc listResponsePattern =
56             Pattern.compile("^\\(([^)]*)\\) " + // read parameters in $1
57 "((\"([^\"]+)\")|(NIL)) " + // read separator in $4
58 "\"?([^\"]*)\"?$"); //read name or literal in $6
59
60     private static final Pattern JavaDoc parameterPattern =
61         Pattern.compile(
62             "((\\\\Noinferiors)|(\\\\Noselect)|(\\\\Marked)|(\\\\UnMarked)) ?",
63             Pattern.CASE_INSENSITIVE);
64
65     /**
66      * Parse the ListInfo of the IMAP response.
67      *
68      * @param response
69      * @return the ListInfo
70      * @throws ParserException
71      */
72     public static ListInfo parse(IMAPResponse response)
73         throws ParserException {
74         Matcher JavaDoc matcher =
75             listResponsePattern.matcher(response.getResponseMessage());
76         if (matcher.matches()) {
77             String JavaDoc parameterString = matcher.group(1);
78             int parameters = 0;
79             if (parameterString != null) {
80                 parameters = parseParameters(parameterString);
81             }
82             String JavaDoc delimiter = matcher.group(4); // this might also be null
83 String JavaDoc name = MailboxNameUTF7Converter.decode(matcher.group(6));
84         
85             name = response.getData(name).toString();
86
87             ListInfo result = new ListInfo(name, delimiter, parameters);
88
89             return result;
90         }
91
92         throw new ParserException(
93             "Invalid List/Lsub response : " + response.getSource());
94     }
95
96     private static int parseParameters(String JavaDoc parameterString) {
97         Matcher JavaDoc matcher = parameterPattern.matcher(parameterString);
98         int result = 0;
99
100         while (matcher.find()) {
101             // Noinferiors
102 if (matcher.group(2) != null) {
103                 result |= ListInfo.NOINFERIORS;
104                 continue;
105             }
106             // Noselect
107 if (matcher.group(3) != null) {
108                 result |= ListInfo.NOSELECT;
109                 continue;
110             }
111             // Marked
112 if (matcher.group(4) != null) {
113                 result |= ListInfo.MARKED;
114                 continue;
115             }
116             // Unmarked
117 if (matcher.group(5) != null) {
118                 result |= ListInfo.UNMARKED;
119                 continue;
120             }
121         }
122
123         return result;
124     }
125
126 }
127
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