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 Accept header.
34 *
35 * @version 1.2 $Revision: 1.7 $ $Date: 2009/07/17 18:57:56 $
36 *
37 * @author Olivier Deruelle
38 * @author M. Ranganathan   <br/>
39 *
40 *
41 */
42public class AcceptParser extends ParametersParser {
43
44    /**
45     * Creates a new instance of Accept Parser
46     * @param accept  the header to parse
47     */
48    public AcceptParser(String accept) {
49        super(accept);
50    }
51
52    /**
53     * Constructor
54     * @param lexer the lexer to use to parse the header
55     */
56    protected AcceptParser(Lexer lexer) {
57        super(lexer);
58    }
59
60    /**
61     * parse the Accept  String header
62     * @return SIPHeader (AcceptList  object)
63     * @throws SIPParseException if the message does not respect the spec.
64     */
65    public SIPHeader parse() throws ParseException {
66
67        if (debug)
68            dbg_enter("AcceptParser.parse");
69        AcceptList list = new AcceptList();
70
71        try {
72            headerName(TokenTypes.ACCEPT);
73
74            Accept accept = new Accept();
75            accept.setHeaderName(SIPHeaderNames.ACCEPT);
76
77            this.lexer.SPorHT();
78            this.lexer.match(TokenTypes.ID);
79            Token token = lexer.getNextToken();
80            accept.setContentType(token.getTokenValue());
81            this.lexer.match('/');
82            this.lexer.match(TokenTypes.ID);
83            token = lexer.getNextToken();
84            accept.setContentSubType(token.getTokenValue());
85            this.lexer.SPorHT();
86
87            super.parse(accept);
88            list.add(accept);
89
90            while (lexer.lookAhead(0) == ',') {
91                this.lexer.match(',');
92                this.lexer.SPorHT();
93
94                accept = new Accept();
95
96                this.lexer.match(TokenTypes.ID);
97                token = lexer.getNextToken();
98                accept.setContentType(token.getTokenValue());
99                this.lexer.match('/');
100                this.lexer.match(TokenTypes.ID);
101                token = lexer.getNextToken();
102                accept.setContentSubType(token.getTokenValue());
103                this.lexer.SPorHT();
104                super.parse(accept);
105                list.add(accept);
106
107            }
108            return list;
109        } finally {
110            if (debug)
111                dbg_leave("AcceptParser.parse");
112        }
113    }
114}
115/*
116 * $Log: AcceptParser.java,v $
117 * Revision 1.7  2009/07/17 18:57:56  emcho
118 * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
119 *
120 * Revision 1.6  2006/07/13 09:02:16  mranga
121 * Issue number:
122 * Obtained from:
123 * Submitted by:  jeroen van bemmel
124 * Reviewed by:   mranga
125 * Moved some changes from jain-sip-1.2 to java.net
126 *
127 * CVS: ----------------------------------------------------------------------
128 * CVS: Issue number:
129 * CVS:   If this change addresses one or more issues,
130 * CVS:   then enter the issue number(s) here.
131 * CVS: Obtained from:
132 * CVS:   If this change has been taken from another system,
133 * CVS:   then name the system in this line, otherwise delete it.
134 * CVS: Submitted by:
135 * CVS:   If this code has been contributed to the project by someone else; i.e.,
136 * CVS:   they sent us a patch or a set of diffs, then include their name/email
137 * CVS:   address here. If this is your work then delete this line.
138 * CVS: Reviewed by:
139 * CVS:   If we are doing pre-commit code reviews and someone else has
140 * CVS:   reviewed your changes, include their name(s) here.
141 * CVS:   If you have not had it reviewed then delete this line.
142 *
143 * Revision 1.3  2006/06/19 06:47:27  mranga
144 * javadoc fixups
145 *
146 * Revision 1.2  2006/06/16 15:26:28  mranga
147 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
148 *
149 * Revision 1.1.1.1  2005/10/04 17:12:35  mranga
150 *
151 * Import
152 *
153 *
154 * Revision 1.4  2004/01/22 13:26:31  sverker
155 * Issue number:
156 * Obtained from:
157 * Submitted by:  sverker
158 * Reviewed by:   mranga
159 *
160 * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
161 *
162 * CVS: ----------------------------------------------------------------------
163 * CVS: Issue number:
164 * CVS:   If this change addresses one or more issues,
165 * CVS:   then enter the issue number(s) here.
166 * CVS: Obtained from:
167 * CVS:   If this change has been taken from another system,
168 * CVS:   then name the system in this line, otherwise delete it.
169 * CVS: Submitted by:
170 * CVS:   If this code has been contributed to the project by someone else; i.e.,
171 * CVS:   they sent us a patch or a set of diffs, then include their name/email
172 * CVS:   address here. If this is your work then delete this line.
173 * CVS: Reviewed by:
174 * CVS:   If we are doing pre-commit code reviews and someone else has
175 * CVS:   reviewed your changes, include their name(s) here.
176 * CVS:   If you have not had it reviewed then delete this line.
177 *
178 */
179