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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 INOVAO - EST DEPARTMENT *
     28  *******************************************/
     29 
     30 package gov.nist.javax.sip.parser.ims;
     31 
     32 import java.text.ParseException;
     33 
     34 import gov.nist.javax.sip.header.ims.ServiceRoute;
     35 import gov.nist.javax.sip.header.ims.ServiceRouteList;
     36 import gov.nist.javax.sip.header.SIPHeader;
     37 import gov.nist.javax.sip.parser.AddressParametersParser;
     38 import gov.nist.javax.sip.parser.Lexer;
     39 import gov.nist.javax.sip.parser.TokenTypes;
     40 
     41 /**
     42  * Service-Route header parser.
     43  *
     44  * @author ALEXANDRE MIGUEL SILVA SANTOS
     45  */
     46 
     47 public class ServiceRouteParser extends AddressParametersParser {
     48 
     49     /**
     50      * Constructor
     51      */
     52     public ServiceRouteParser(String serviceRoute) {
     53         super(serviceRoute);
     54 
     55     }
     56 
     57     protected ServiceRouteParser(Lexer lexer) {
     58         super(lexer);
     59 
     60     }
     61 
     62 
     63 
     64 
     65     /**
     66      * parse the String message and generate the RecordRoute List Object
     67      * @return SIPHeader the RecordRoute List object
     68      * @throws ParseException if errors occur during the parsing
     69      */
     70 
     71     public SIPHeader parse() throws ParseException {
     72         ServiceRouteList serviceRouteList = new ServiceRouteList();
     73 
     74         if (debug)
     75             dbg_enter("ServiceRouteParser.parse");
     76 
     77         try {
     78             this.lexer.match(TokenTypes.SERVICE_ROUTE);
     79             this.lexer.SPorHT();
     80             this.lexer.match(':');
     81             this.lexer.SPorHT();
     82             while (true) {
     83                 ServiceRoute serviceRoute = new ServiceRoute();
     84                 super.parse(serviceRoute);
     85                 serviceRouteList.add(serviceRoute);
     86                 this.lexer.SPorHT();
     87                 if (lexer.lookAhead(0) == ',') {
     88                     this.lexer.match(',');
     89                     this.lexer.SPorHT();
     90                 } else if (lexer.lookAhead(0) == '\n')
     91                     break;
     92                 else
     93                     throw createParseException("unexpected char");
     94             }
     95             return serviceRouteList;
     96         } finally {
     97             if (debug)
     98                 dbg_leave("ServiceRouteParser.parse");
     99         }
    100 
    101     }
    102 
    103 }
    104