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      */
ServiceRouteParser(String serviceRoute)52     public ServiceRouteParser(String serviceRoute) {
53         super(serviceRoute);
54 
55     }
56 
ServiceRouteParser(Lexer lexer)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 
parse()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