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 
30 package gov.nist.javax.sip.parser.ims;
31 
32 
33 import java.text.ParseException;
34 
35 import gov.nist.javax.sip.header.ims.PAccessNetworkInfo;
36 import gov.nist.javax.sip.header.ims.SIPHeaderNamesIms;
37 import gov.nist.core.Token;
38 import gov.nist.core.NameValue;
39 import gov.nist.javax.sip.header.SIPHeader;
40 import gov.nist.javax.sip.parser.HeaderParser;
41 import gov.nist.javax.sip.parser.Lexer;
42 import gov.nist.javax.sip.parser.ParametersParser;
43 import 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 
69 public class PAccessNetworkInfoParser
70     extends HeaderParser
71     implements TokenTypes
72 {
73 
PAccessNetworkInfoParser(String accessNetwork)74     public PAccessNetworkInfoParser(String accessNetwork) {
75 
76         super(accessNetwork);
77 
78     }
79 
80 
PAccessNetworkInfoParser(Lexer lexer)81     protected PAccessNetworkInfoParser(Lexer lexer) {
82         super(lexer);
83 
84     }
85 
86 
parse()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