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      */
PathParser(String path)51     public PathParser(String path) {
52         super(path);
53 
54     }
55 
PathParser(Lexer lexer)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 
parse()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