1 package gov.nist.javax.sip.parser.extensions;
2 
3 import gov.nist.javax.sip.header.*;
4 import gov.nist.javax.sip.header.extensions.*;
5 import gov.nist.javax.sip.parser.*;
6 
7 import java.text.ParseException;
8 
9 // Parser for Join Header (RFC3911)
10 // Extension by jean deruelle
11 //
12 // Join        = "Join" HCOLON callid *(SEMI join-param)
13 // join-param  = to-tag / from-tag / generic-param
14 // to-tag          = "to-tag" EQUAL token
15 // from-tag        = "from-tag" EQUAL token
16 //
17 //
18 
19 public class JoinParser extends ParametersParser {
20 
21     /**
22      * Creates new CallIDParser
23      * @param callID message to parse
24      */
JoinParser(String callID)25     public JoinParser(String callID) {
26         super(callID);
27     }
28 
29     /**
30      * Constructor
31      * @param lexer Lexer to set
32      */
JoinParser(Lexer lexer)33     protected JoinParser(Lexer lexer) {
34         super(lexer);
35     }
36 
37     /**
38      * parse the String message
39      * @return SIPHeader (CallID object)
40      * @throws ParseException if the message does not respect the spec.
41      */
parse()42     public SIPHeader parse() throws ParseException {
43         if (debug)
44             dbg_enter("parse");
45         try {
46             headerName(TokenTypes.JOIN_TO);
47 
48             Join join = new Join();
49             this.lexer.SPorHT();
50             String callId = lexer.byteStringNoSemicolon();
51             this.lexer.SPorHT();
52             super.parse(join);
53             join.setCallId(callId);
54             return join;
55         } finally {
56             if (debug)
57                 dbg_leave("parse");
58         }
59     }
60 
main(String args[])61     public static void main(String args[]) throws ParseException {
62         String to[] =
63             {   "Join: 12345th5z8z\n",
64                 "Join: 12345th5z8z;to-tag=tozght6-45;from-tag=fromzght789-337-2\n",
65             };
66 
67         for (int i = 0; i < to.length; i++) {
68             JoinParser tp = new JoinParser(to[i]);
69             Join t = (Join) tp.parse();
70             System.out.println("Parsing => " + to[i]);
71             System.out.print("encoded = " + t.encode() + "==> ");
72             System.out.println("callId " + t.getCallId() + " from-tag=" + t.getFromTag()
73                     + " to-tag=" + t.getToTag()) ;
74 
75         }
76     }
77 
78 }
79