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 Supported header.
34 *
35 * @version 1.2 $Revision: 1.7 $ $Date: 2009/07/17 18:58:06 $
36 *
37 * @author Olivier Deruelle   <br/>
38 * @author M. Ranganathan   <br/>
39 *
40 *
41 *
42 * @version 1.0
43 */
44public class SupportedParser extends HeaderParser {
45
46    /**
47     * Creates a new instance of SupportedParser
48     * @param supported the header to parse
49     */
50    public SupportedParser(String supported) {
51        super(supported);
52    }
53
54    /**
55     * Constructor
56     * @param lexer the lexer to use to parse the header
57     */
58    protected SupportedParser(Lexer lexer) {
59        super(lexer);
60    }
61
62    /**
63     * parse the String message
64     * @return SIPHeader (Supported object)
65     * @throws SIPParseException if the message does not respect the spec.
66     */
67    public SIPHeader parse() throws ParseException {
68        SupportedList supportedList = new SupportedList();
69        if (debug)
70            dbg_enter("SupportedParser.parse");
71
72        try {
73            headerName(TokenTypes.SUPPORTED);
74
75            while (lexer.lookAhead(0) != '\n') {
76                this.lexer.SPorHT();
77                Supported supported = new Supported();
78                supported.setHeaderName(SIPHeaderNames.SUPPORTED);
79
80                // Parsing the option tag
81                this.lexer.match(TokenTypes.ID);
82                Token token = lexer.getNextToken();
83                supported.setOptionTag(token.getTokenValue());
84                this.lexer.SPorHT();
85
86                supportedList.add(supported);
87
88                while (lexer.lookAhead(0) == ',') {
89                    this.lexer.match(',');
90                    this.lexer.SPorHT();
91
92                    supported = new Supported();
93
94                    // Parsing the option tag
95                    this.lexer.match(TokenTypes.ID);
96                    token = lexer.getNextToken();
97                    supported.setOptionTag(token.getTokenValue());
98                    this.lexer.SPorHT();
99
100                    supportedList.add(supported);
101                }
102
103            }
104        } finally {
105            if (debug)
106                dbg_leave("SupportedParser.parse");
107        }
108
109        return supportedList;
110    }
111
112    /** Test program
113    public static void main(String args[]) throws ParseException {
114        String supported[] = {
115            "Supported: 100rel \n",
116            "Supported: foo1, foo2 ,foo3 , foo4 \n"
117        };
118
119        for (int i = 0; i < supported.length; i++ ) {
120            SupportedParser parser =
121            new SupportedParser(supported[i]);
122            SupportedList s= (SupportedList) parser.parse();
123            System.out.println("encoded = " + s.encode());
124        }
125
126    }
127     */
128}
129/*
130 * $Log: SupportedParser.java,v $
131 * Revision 1.7  2009/07/17 18:58:06  emcho
132 * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
133 *
134 * Revision 1.6  2006/07/13 09:02:02  mranga
135 * Issue number:
136 * Obtained from:
137 * Submitted by:  jeroen van bemmel
138 * Reviewed by:   mranga
139 * Moved some changes from jain-sip-1.2 to java.net
140 *
141 * CVS: ----------------------------------------------------------------------
142 * CVS: Issue number:
143 * CVS:   If this change addresses one or more issues,
144 * CVS:   then enter the issue number(s) here.
145 * CVS: Obtained from:
146 * CVS:   If this change has been taken from another system,
147 * CVS:   then name the system in this line, otherwise delete it.
148 * CVS: Submitted by:
149 * CVS:   If this code has been contributed to the project by someone else; i.e.,
150 * CVS:   they sent us a patch or a set of diffs, then include their name/email
151 * CVS:   address here. If this is your work then delete this line.
152 * CVS: Reviewed by:
153 * CVS:   If we are doing pre-commit code reviews and someone else has
154 * CVS:   reviewed your changes, include their name(s) here.
155 * CVS:   If you have not had it reviewed then delete this line.
156 *
157 * Revision 1.3  2006/06/19 06:47:27  mranga
158 * javadoc fixups
159 *
160 * Revision 1.2  2006/06/16 15:26:28  mranga
161 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
162 *
163 * Revision 1.1.1.1  2005/10/04 17:12:36  mranga
164 *
165 * Import
166 *
167 *
168 * Revision 1.4  2004/01/22 13:26:32  sverker
169 * Issue number:
170 * Obtained from:
171 * Submitted by:  sverker
172 * Reviewed by:   mranga
173 *
174 * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
175 *
176 * CVS: ----------------------------------------------------------------------
177 * CVS: Issue number:
178 * CVS:   If this change addresses one or more issues,
179 * CVS:   then enter the issue number(s) here.
180 * CVS: Obtained from:
181 * CVS:   If this change has been taken from another system,
182 * CVS:   then name the system in this line, otherwise delete it.
183 * CVS: Submitted by:
184 * CVS:   If this code has been contributed to the project by someone else; i.e.,
185 * CVS:   they sent us a patch or a set of diffs, then include their name/email
186 * CVS:   address here. If this is your work then delete this line.
187 * CVS: Reviewed by:
188 * CVS:   If we are doing pre-commit code reviews and someone else has
189 * CVS:   reviewed your changes, include their name(s) here.
190 * CVS:   If you have not had it reviewed then delete this line.
191 *
192 */
193