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*/
26/************************************************************************************************
27 * PRODUCT OF PT INOVACAO - EST DEPARTMENT and Telecommunications Institute (Aveiro, Portugal)  *
28 ************************************************************************************************/
29
30package gov.nist.javax.sip.parser.ims;
31
32
33import java.text.ParseException;
34
35import gov.nist.javax.sip.header.ims.PAccessNetworkInfo;
36import gov.nist.javax.sip.header.ims.SIPHeaderNamesIms;
37import gov.nist.core.Token;
38import gov.nist.core.NameValue;
39import gov.nist.javax.sip.header.SIPHeader;
40import gov.nist.javax.sip.parser.HeaderParser;
41import gov.nist.javax.sip.parser.Lexer;
42import gov.nist.javax.sip.parser.ParametersParser;
43import gov.nist.javax.sip.parser.TokenTypes;
44
45
46/**
47 * P-Access-Network-Info header parser.
48 *
49 * <p>RFC 3455 - Private Header (P-Header) Extensions to the Session Initiation
50 *   Protocol (SIP) for the 3rd-Generation Partnership Project (3GPP) </p>
51 *
52 * <p>Sintax (RFC 3455):</p>
53 * <pre>
54 * P-Access-Network-Info  = "P-Access-Network-Info" HCOLON access-net-spec
55 * access-net-spec        = access-type *(SEMI access-info)
56 * access-type            = "IEEE-802.11a" / "IEEE-802.11b" /
57 *                          "3GPP-GERAN" / "3GPP-UTRAN-FDD" /
58 *                          "3GPP-UTRAN-TDD" / "3GPP-CDMA2000" / token
59 * access-info            = cgi-3gpp / utran-cell-id-3gpp / extension-access-info
60 * extension-access-info  = gen-value
61 * cgi-3gpp               = "cgi-3gpp" EQUAL (token / quoted-string)
62 * utran-cell-id-3gpp     = "utran-cell-id-3gpp" EQUAL (token / quoted-string)
63 * </pre>
64 *
65 * @author Miguel Freitas (IT) PT-Inovacao
66 */
67
68
69public class PAccessNetworkInfoParser
70    extends HeaderParser
71    implements TokenTypes
72{
73
74    public PAccessNetworkInfoParser(String accessNetwork) {
75
76        super(accessNetwork);
77
78    }
79
80
81    protected PAccessNetworkInfoParser(Lexer lexer) {
82        super(lexer);
83
84    }
85
86
87    public SIPHeader parse() throws ParseException
88    {
89
90        if (debug)
91            dbg_enter("AccessNetworkInfoParser.parse");
92        try {
93            headerName(TokenTypes.P_ACCESS_NETWORK_INFO);
94            PAccessNetworkInfo accessNetworkInfo = new PAccessNetworkInfo();
95            accessNetworkInfo.setHeaderName(SIPHeaderNamesIms.P_ACCESS_NETWORK_INFO);
96
97            this.lexer.SPorHT();
98            lexer.match(TokenTypes.ID);
99            Token token = lexer.getNextToken();
100            accessNetworkInfo.setAccessType(token.getTokenValue());
101
102            this.lexer.SPorHT();
103            while (lexer.lookAhead(0) == ';') {
104                this.lexer.match(';');
105                this.lexer.SPorHT();
106
107                NameValue nv = super.nameValue('=');
108                accessNetworkInfo.setParameter(nv);
109                this.lexer.SPorHT();
110            }
111            this.lexer.SPorHT();
112            this.lexer.match('\n');
113
114
115            return accessNetworkInfo;
116        } finally {
117            if (debug)
118                dbg_leave("AccessNetworkInfoParser.parse");
119        }
120
121    }
122
123
124
125
126}
127