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      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 
     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