PAssertedServiceParser.java revision 600c7a4bbc7348167293eac928192e695b4ad5ba 
1package 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*/
27import java.text.ParseException;
28import javax.sip.InvalidArgumentException;
29import gov.nist.javax.sip.header.SIPHeader;
30import gov.nist.javax.sip.header.ims.PAssertedService;
31import gov.nist.javax.sip.header.ims.ParameterNamesIms;
32import gov.nist.javax.sip.parser.HeaderParser;
33import gov.nist.javax.sip.parser.Lexer;
34import 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 */
45public class PAssertedServiceParser extends HeaderParser implements TokenTypes{
46
47    protected PAssertedServiceParser(Lexer lexer) {
48        super(lexer);
49    }
50
51    public PAssertedServiceParser(String pas)
52    {
53        super(pas);
54    }
55
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