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      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 
     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