content: /*
  * Conditions Of Use
  *
  * This software was developed by employees of the National Institute of
  * Standards and Technology (NIST), an agency of the Federal Government.
  * Pursuant to title 15 Untied States Code Section 105, works of NIST
  * employees are not subject to copyright protection in the United States
  * and are considered to be in the public domain.  As a result, a formal
  * license is not needed to use the software.
  *
  * This software is provided by NIST as a service and is expressly
  * provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
  * OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
  * AND DATA ACCURACY.  NIST does not warrant or make any representations
  * regarding the use of the software or the results thereof, including but
  * not limited to the correctness, accuracy, reliability or usefulness of
  * the software.
  *
  * Permission to use this software is contingent upon your acceptance
  * of the terms of this agreement
  *
  * .
  *
  */
  /************************************************************************************************
   * PRODUCT OF PT INOVACAO - EST DEPARTMENT and Telecommunications Institute (Aveiro, Portugal)  *
   ************************************************************************************************/
  
  package gov2.nist.javax2.sip.parser.ims;
  
  
  import java.text.ParseException;
  
  import gov2.nist.core.NameValue;
  import gov2.nist.core.Token;
  import gov2.nist.javax2.sip.header.SIPHeader;
  import gov2.nist.javax2.sip.header.ims.PAccessNetworkInfo;
  import gov2.nist.javax2.sip.header.ims.SIPHeaderNamesIms;
  import gov2.nist.javax2.sip.parser.HeaderParser;
  import gov2.nist.javax2.sip.parser.Lexer;
  import gov2.nist.javax2.sip.parser.ParametersParser;
  import gov2.nist.javax2.sip.parser.TokenTypes;
  
  
  /**
   * P-Access-Network-Info header parser.
   *
   * <p>RFC 3455 - Private Header (P-Header) Extensions to the Session Initiation
   *   Protocol (SIP) for the 3rd-Generation Partnership Project (3GPP) </p>
   *
   * <p>Sintax (RFC 3455):</p>
   * <pre>
   * P-Access-Network-Info  = "P-Access-Network-Info" HCOLON access-net-spec
   * access-net-spec        = access-type *(SEMI access-info)
   * access-type            = "IEEE-802.11a" / "IEEE-802.11b" /
   *                          "3GPP-GERAN" / "3GPP-UTRAN-FDD" /
   *                          "3GPP-UTRAN-TDD" / "3GPP-CDMA2000" / token
   * access-info            = cgi-3gpp / utran-cell-id-3gpp / extension-access-info
   * extension-access-info  = gen-value
   * cgi-3gpp               = "cgi-3gpp" EQUAL (token / quoted-string)
   * utran-cell-id-3gpp     = "utran-cell-id-3gpp" EQUAL (token / quoted-string)
   * </pre>
   *
   * @author Miguel Freitas (IT) PT-Inovacao
   */
  
  
  public class PAccessNetworkInfoParser
      extends HeaderParser
      implements TokenTypes
  {
  
      public PAccessNetworkInfoParser(String accessNetwork) {
  
          super(accessNetwork);
  
      }
  
  
      protected PAccessNetworkInfoParser(Lexer lexer) {
          super(lexer);
  
      }
  
  
      public SIPHeader parse() throws ParseException
      {
  
          if (debug)
              dbg_enter("AccessNetworkInfoParser.parse");
          try {
              headerName(TokenTypes.P_ACCESS_NETWORK_INFO);
              PAccessNetworkInfo accessNetworkInfo = new PAccessNetworkInfo();
              accessNetworkInfo.setHeaderName(SIPHeaderNamesIms.P_ACCESS_NETWORK_INFO);
  
              this.lexer.SPorHT();
              lexer.match(TokenTypes.ID);
              Token token = lexer.getNextToken();
              accessNetworkInfo.setAccessType(token.getTokenValue());
  
              this.lexer.SPorHT();
              while (lexer.lookAhead(0) == ';') {
                  this.lexer.match(';');
                  this.lexer.SPorHT();
  
                  NameValue nv = super.nameValue('=');
                  accessNetworkInfo.setParameter(nv);
                  this.lexer.SPorHT();
              }
              this.lexer.SPorHT();
              this.lexer.match('\n');
  
  
              return accessNetworkInfo;
          } finally {
              if (debug)
                  dbg_leave("AccessNetworkInfoParser.parse");
          }
  
      }
  
  
  
  
  }
  