ProxyRequireParser.java revision 600c7a4bbc7348167293eac928192e695b4ad5ba 
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 ProxyRequire header.
34 * @version 1.2 $Revision: 1.7 $ $Date: 2009/07/17 18:58:02 $
35 *
36 * @author Olivier Deruelle   <br/>
37 * @author M. Ranganathan   <br/>
38 *
39 *
40 */
41public class ProxyRequireParser extends HeaderParser {
42
43    /**
44     * Creates a new instance of ProxyRequireParser
45     * @param require the header to parse
46     */
47    public ProxyRequireParser(String require) {
48        super(require);
49    }
50
51    /**
52     * Constructor
53     * @param lexer the lexer to use to parse the header
54     */
55    protected ProxyRequireParser(Lexer lexer) {
56        super(lexer);
57    }
58
59    /**
60     * parse the String message
61     * @return SIPHeader (ProxyRequireList object)
62     * @throws SIPParseException if the message does not respect the spec.
63     */
64    public SIPHeader parse() throws ParseException {
65        ProxyRequireList list = new ProxyRequireList();
66        if (debug)
67            dbg_enter("ProxyRequireParser.parse");
68
69        try {
70            headerName(TokenTypes.PROXY_REQUIRE);
71
72            while (lexer.lookAhead(0) != '\n') {
73                ProxyRequire r = new ProxyRequire();
74                r.setHeaderName(SIPHeaderNames.PROXY_REQUIRE);
75
76                // Parsing the option tag
77                this.lexer.match(TokenTypes.ID);
78                Token token = lexer.getNextToken();
79                r.setOptionTag(token.getTokenValue());
80                this.lexer.SPorHT();
81
82                list.add(r);
83
84                while (lexer.lookAhead(0) == ',') {
85                    this.lexer.match(',');
86                    this.lexer.SPorHT();
87
88                    r = new ProxyRequire();
89
90                    // Parsing the option tag
91                    this.lexer.match(TokenTypes.ID);
92                    token = lexer.getNextToken();
93                    r.setOptionTag(token.getTokenValue());
94                    this.lexer.SPorHT();
95
96                    list.add(r);
97                }
98
99            }
100        } finally {
101            if (debug)
102                dbg_leave("ProxyRequireParser.parse");
103        }
104
105        return list;
106    }
107
108    /** Test program
109    public static void main(String args[]) throws ParseException {
110        String r[] = {
111            "Proxy-Require: foo \n",
112            "Proxy-Require: foo1, foo2 , 389\n"
113        };
114
115        for (int i = 0; i < r.length; i++ ) {
116            ProxyRequireParser parser =
117            new ProxyRequireParser(r[i]);
118            ProxyRequireList rl= (ProxyRequireList) parser.parse();
119            System.out.println("encoded = " + rl.encode());
120        }
121    }
122     */
123}
124/*
125 * $Log: ProxyRequireParser.java,v $
126 * Revision 1.7  2009/07/17 18:58:02  emcho
127 * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
128 *
129 * Revision 1.6  2006/07/13 09:02:15  mranga
130 * Issue number:
131 * Obtained from:
132 * Submitted by:  jeroen van bemmel
133 * Reviewed by:   mranga
134 * Moved some changes from jain-sip-1.2 to java.net
135 *
136 * CVS: ----------------------------------------------------------------------
137 * CVS: Issue number:
138 * CVS:   If this change addresses one or more issues,
139 * CVS:   then enter the issue number(s) here.
140 * CVS: Obtained from:
141 * CVS:   If this change has been taken from another system,
142 * CVS:   then name the system in this line, otherwise delete it.
143 * CVS: Submitted by:
144 * CVS:   If this code has been contributed to the project by someone else; i.e.,
145 * CVS:   they sent us a patch or a set of diffs, then include their name/email
146 * CVS:   address here. If this is your work then delete this line.
147 * CVS: Reviewed by:
148 * CVS:   If we are doing pre-commit code reviews and someone else has
149 * CVS:   reviewed your changes, include their name(s) here.
150 * CVS:   If you have not had it reviewed then delete this line.
151 *
152 * Revision 1.3  2006/06/19 06:47:27  mranga
153 * javadoc fixups
154 *
155 * Revision 1.2  2006/06/16 15:26:28  mranga
156 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
157 *
158 * Revision 1.1.1.1  2005/10/04 17:12:35  mranga
159 *
160 * Import
161 *
162 *
163 * Revision 1.4  2004/01/22 13:26:31  sverker
164 * Issue number:
165 * Obtained from:
166 * Submitted by:  sverker
167 * Reviewed by:   mranga
168 *
169 * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
170 *
171 * CVS: ----------------------------------------------------------------------
172 * CVS: Issue number:
173 * CVS:   If this change addresses one or more issues,
174 * CVS:   then enter the issue number(s) here.
175 * CVS: Obtained from:
176 * CVS:   If this change has been taken from another system,
177 * CVS:   then name the system in this line, otherwise delete it.
178 * CVS: Submitted by:
179 * CVS:   If this code has been contributed to the project by someone else; i.e.,
180 * CVS:   they sent us a patch or a set of diffs, then include their name/email
181 * CVS:   address here. If this is your work then delete this line.
182 * CVS: Reviewed by:
183 * CVS:   If we are doing pre-commit code reviews and someone else has
184 * CVS:   reviewed your changes, include their name(s) here.
185 * CVS:   If you have not had it reviewed then delete this line.
186 *
187 */
188