1/*
2* Conditions Of Use
3*
4* This software was developed by employees of the National Institute of
5* Standards and Technology (NIST), an agency of the Federal Government.
6* Pursuant to title 15 Untied States Code Section 105, works of NIST
7* employees are not subject to copyright protection in the United States
8* and are considered to be in the public domain.  As a result, a formal
9* license is not needed to use the software.
10*
11* This software is provided by NIST as a service and is expressly
12* provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
13* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
14* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
15* AND DATA ACCURACY.  NIST does not warrant or make any representations
16* regarding the use of the software or the results thereof, including but
17* not limited to the correctness, accuracy, reliability or usefulness of
18* the software.
19*
20* Permission to use this software is contingent upon your acceptance
21* of the terms of this agreement
22*
23* .
24*
25*/
26package gov.nist.javax.sip.parser;
27
28import gov.nist.javax.sip.header.*;
29import gov.nist.core.*;
30import java.text.ParseException;
31
32/**
33 * Parser for ContentLanguage header.
34 *
35 * @version 1.2 $Revision: 1.8 $ $Date: 2009/07/17 18:57:58 $
36 *
37 * @author Olivier Deruelle   <br/>
38 * @author M. Ranganathan   <br/>
39 *
40 *
41 *
42 * @version 1.0
43 */
44public class ContentEncodingParser extends HeaderParser {
45
46    /**
47     * Creates a new instance of ContentEncodingParser
48     * @param contentEncoding the header to parse
49     */
50    public ContentEncodingParser(String contentEncoding) {
51        super(contentEncoding);
52    }
53
54    /**
55     * Constructor
56     * @param lexer the lexer to use to parse the header
57     */
58    protected ContentEncodingParser(Lexer lexer) {
59        super(lexer);
60    }
61
62    /**
63     * parse the ContentEncodingHeader String header
64     * @return SIPHeader (ContentEncodingList object)
65     * @throws SIPParseException if the message does not respect the spec.
66     */
67    public SIPHeader parse() throws ParseException {
68
69        if (debug)
70            dbg_enter("ContentEncodingParser.parse");
71        ContentEncodingList list = new ContentEncodingList();
72
73        try {
74            headerName(TokenTypes.CONTENT_ENCODING);
75
76            while (lexer.lookAhead(0) != '\n') {
77                ContentEncoding cl = new ContentEncoding();
78                cl.setHeaderName(SIPHeaderNames.CONTENT_ENCODING);
79
80                this.lexer.SPorHT();
81                this.lexer.match(TokenTypes.ID);
82
83                Token token = lexer.getNextToken();
84                cl.setEncoding(token.getTokenValue());
85
86                this.lexer.SPorHT();
87                list.add(cl);
88
89                while (lexer.lookAhead(0) == ',') {
90                    cl = new ContentEncoding();
91                    this.lexer.match(',');
92                    this.lexer.SPorHT();
93                    this.lexer.match(TokenTypes.ID);
94                    this.lexer.SPorHT();
95                    token = lexer.getNextToken();
96                    cl.setEncoding(token.getTokenValue());
97                    this.lexer.SPorHT();
98                    list.add(cl);
99                }
100            }
101
102            return list;
103        } catch (ParseException ex) {
104            throw createParseException(ex.getMessage());
105        } finally {
106            if (debug)
107                dbg_leave("ContentEncodingParser.parse");
108        }
109    }
110
111
112}
113/*
114 * $Log: ContentEncodingParser.java,v $
115 * Revision 1.8  2009/07/17 18:57:58  emcho
116 * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
117 *
118 * Revision 1.7  2006/07/13 09:01:56  mranga
119 * Issue number:
120 * Obtained from:
121 * Submitted by:  jeroen van bemmel
122 * Reviewed by:   mranga
123 * Moved some changes from jain-sip-1.2 to java.net
124 *
125 * CVS: ----------------------------------------------------------------------
126 * CVS: Issue number:
127 * CVS:   If this change addresses one or more issues,
128 * CVS:   then enter the issue number(s) here.
129 * CVS: Obtained from:
130 * CVS:   If this change has been taken from another system,
131 * CVS:   then name the system in this line, otherwise delete it.
132 * CVS: Submitted by:
133 * CVS:   If this code has been contributed to the project by someone else; i.e.,
134 * CVS:   they sent us a patch or a set of diffs, then include their name/email
135 * CVS:   address here. If this is your work then delete this line.
136 * CVS: Reviewed by:
137 * CVS:   If we are doing pre-commit code reviews and someone else has
138 * CVS:   reviewed your changes, include their name(s) here.
139 * CVS:   If you have not had it reviewed then delete this line.
140 *
141 * Revision 1.3  2006/06/19 06:47:27  mranga
142 * javadoc fixups
143 *
144 * Revision 1.2  2006/06/16 15:26:28  mranga
145 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
146 *
147 * Revision 1.1.1.1  2005/10/04 17:12:35  mranga
148 *
149 * Import
150 *
151 *
152 * Revision 1.5  2004/07/28 14:13:55  mranga
153 * Submitted by:  mranga
154 *
155 * Move out the test code to a separate test/unit class.
156 * Fixed some encode methods.
157 *
158 * Revision 1.4  2004/01/22 13:26:31  sverker
159 * Issue number:
160 * Obtained from:
161 * Submitted by:  sverker
162 * Reviewed by:   mranga
163 *
164 * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
165 *
166 * CVS: ----------------------------------------------------------------------
167 * CVS: Issue number:
168 * CVS:   If this change addresses one or more issues,
169 * CVS:   then enter the issue number(s) here.
170 * CVS: Obtained from:
171 * CVS:   If this change has been taken from another system,
172 * CVS:   then name the system in this line, otherwise delete it.
173 * CVS: Submitted by:
174 * CVS:   If this code has been contributed to the project by someone else; i.e.,
175 * CVS:   they sent us a patch or a set of diffs, then include their name/email
176 * CVS:   address here. If this is your work then delete this line.
177 * CVS: Reviewed by:
178 * CVS:   If we are doing pre-commit code reviews and someone else has
179 * CVS:   reviewed your changes, include their name(s) here.
180 * CVS:   If you have not had it reviewed then delete this line.
181 *
182 */
183