1 package gov.nist.javax.sip.parser.ims;
2 /*
3 * Conditions Of Use
4 *
5 * This software was developed by employees of the National Institute of
6 * Standards and Technology (NIST), an agency of the Federal Government.
7 * Pursuant to title 15 Untied States Code Section 105, works of NIST
8 * employees are not subject to copyright protection in the United States
9 * and are considered to be in the public domain.  As a result, a formal
10 * license is not needed to use the software.
11 *
12 * This software is provided by NIST as a service and is expressly
13 * provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
14 * OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
15 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
16 * AND DATA ACCURACY.  NIST does not warrant or make any representations
17 * regarding the use of the software or the results thereof, including but
18 * not limited to the correctness, accuracy, reliability or usefulness of
19 * the software.
20 *
21 * Permission to use this software is contingent upon your acceptance
22 * of the terms of this agreement
23 *
24 * .
25 *
26 */
27 import java.text.ParseException;
28 import javax.sip.InvalidArgumentException;
29 import gov.nist.javax.sip.header.SIPHeader;
30 import gov.nist.javax.sip.header.ims.PAssertedService;
31 import gov.nist.javax.sip.header.ims.ParameterNamesIms;
32 import gov.nist.javax.sip.parser.HeaderParser;
33 import gov.nist.javax.sip.parser.Lexer;
34 import gov.nist.javax.sip.parser.TokenTypes;
35 
36 /**
37  *
38  * @author aayush.bhatnagar
39  * Rancore Technologies Pvt Ltd, Mumbai India.
40  *
41  * Parse this:
42  * P-Asserted-Service: urn:urn-7:3gpp-service.exampletelephony.version1
43  *
44  */
45 public class PAssertedServiceParser extends HeaderParser implements TokenTypes{
46 
PAssertedServiceParser(Lexer lexer)47     protected PAssertedServiceParser(Lexer lexer) {
48         super(lexer);
49     }
50 
PAssertedServiceParser(String pas)51     public PAssertedServiceParser(String pas)
52     {
53         super(pas);
54     }
55 
parse()56     public SIPHeader parse() throws ParseException {
57         if(debug)
58             dbg_enter("PAssertedServiceParser.parse");
59         try
60         {
61         this.lexer.match(TokenTypes.P_ASSERTED_SERVICE);
62         this.lexer.SPorHT();
63         this.lexer.match(':');
64         this.lexer.SPorHT();
65 
66         PAssertedService pps = new PAssertedService();
67         String urn = this.lexer.getBuffer();
68         if(urn.contains(ParameterNamesIms.SERVICE_ID)){
69 
70            if(urn.contains(ParameterNamesIms.SERVICE_ID_LABEL))
71                    {
72                     String serviceID = urn.split(ParameterNamesIms.SERVICE_ID_LABEL+".")[1];
73 
74                      if(serviceID.trim().equals(""))
75                         try {
76                             throw new InvalidArgumentException("URN should atleast have one sub-service");
77                         } catch (InvalidArgumentException e) {
78 
79                             e.printStackTrace();
80                         }
81                         else
82                     pps.setSubserviceIdentifiers(urn.split(ParameterNamesIms.SERVICE_ID_LABEL)[1]);
83                    }
84            else if(urn.contains(ParameterNamesIms.APPLICATION_ID_LABEL))
85               {
86                String appID = urn.split(ParameterNamesIms.APPLICATION_ID_LABEL+".")[1];
87                if(appID.trim().equals(""))
88                     try {
89                         throw new InvalidArgumentException("URN should atleast have one sub-application");
90                     } catch (InvalidArgumentException e) {
91                         e.printStackTrace();
92                     }
93                     else
94                   pps.setApplicationIdentifiers(urn.split(ParameterNamesIms.APPLICATION_ID_LABEL)[1]);
95               }
96            else
97            {
98                try {
99                 throw new InvalidArgumentException("URN is not well formed");
100 
101             } catch (InvalidArgumentException e) {
102                 e.printStackTrace();
103                     }
104                   }
105           }
106 
107             super.parse();
108             return pps;
109         }
110         finally{
111             if(debug)
112                 dbg_enter("PAssertedServiceParser.parse");
113         }
114 
115     }
116 }
117