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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 *
     28  *******************************************/
     29 
     30 package gov.nist.javax.sip.parser.ims;
     31 
     32 import gov.nist.javax.sip.header.SIPHeader;
     33 import gov.nist.javax.sip.header.ims.Path;
     34 import gov.nist.javax.sip.header.ims.PathList;
     35 import gov.nist.javax.sip.parser.AddressParametersParser;
     36 import gov.nist.javax.sip.parser.Lexer;
     37 import gov.nist.javax.sip.parser.TokenTypes;
     38 
     39 import java.text.ParseException;
     40 
     41 /**
     42  * @author ALEXANDRE MIGUEL SILVA SANTOS
     43  */
     44 
     45 
     46 public class PathParser extends AddressParametersParser implements TokenTypes {
     47 
     48     /**
     49      * Constructor
     50      */
     51     public PathParser(String path) {
     52         super(path);
     53 
     54     }
     55 
     56     protected PathParser(Lexer lexer) {
     57         super(lexer);
     58 
     59     }
     60 
     61 
     62 
     63 
     64     /**
     65      * parse the String message and generate the RecordRoute List Object
     66      * @return SIPHeader the RecordRoute List object
     67      * @throws ParseException if errors occur during the parsing
     68      */
     69 
     70     public SIPHeader parse() throws ParseException {
     71 
     72         PathList pathList = new PathList();
     73 
     74         if (debug)
     75             dbg_enter("PathParser.parse");
     76 
     77         try {
     78             this.lexer.match(TokenTypes.PATH);
     79             this.lexer.SPorHT();
     80             this.lexer.match(':');
     81             this.lexer.SPorHT();
     82             while (true) {
     83                 Path path = new Path();
     84                 super.parse(path);
     85                 pathList.add(path);
     86                 this.lexer.SPorHT();
     87                 char la = lexer.lookAhead(0);
     88                 if (la == ',') {
     89                     this.lexer.match(',');
     90                     this.lexer.SPorHT();
     91                 } else if (la == '\n')
     92                     break;
     93                 else
     94                     throw createParseException("unexpected char");
     95             }
     96             return pathList;
     97         } finally {
     98             if (debug)
     99                 dbg_leave("PathParser.parse");
    100         }
    101 
    102     }
    103 
    104 
    105 
    106 }
    107