MinSEParser.java revision 600c7a4bbc7348167293eac928192e695b4ad5ba 
1package gov.nist.javax.sip.parser.extensions;
2
3import gov.nist.javax.sip.header.*;
4import gov.nist.javax.sip.header.extensions.*;
5import gov.nist.javax.sip.parser.*;
6
7import java.text.ParseException;
8import javax.sip.*;
9
10/**
11 * Parser for SIP MinSE Parser.
12 *
13 *    Min-SE  =  "Min-SE" HCOLON delta-seconds *(SEMI generic-param)
14 *
15 * @author P. Musgrave <pmusgrave@newheights.com>
16 *
17 * <a href="{@docRoot}/uncopyright.html">This code is in the public domain.</a>
18 */
19public class MinSEParser extends ParametersParser {
20
21    /**
22     * protected constructor.
23     * @param text is the text of the header to parse
24     */
25    public MinSEParser(String text) {
26        super(text);
27    }
28
29    /**
30     * constructor.
31     * @param lexer is the lexer passed in from the enclosing parser.
32     */
33    protected MinSEParser(Lexer lexer) {
34        super(lexer);
35    }
36
37    /**
38     * Parse the header.
39     */
40    public SIPHeader parse() throws ParseException {
41        MinSE minse = new MinSE();
42        if (debug)
43            dbg_enter("parse");
44        try {
45            headerName(TokenTypes.MINSE_TO);
46
47            String nextId = lexer.getNextId();
48            try {
49                int delta = Integer.parseInt(nextId);
50                minse.setExpires(delta);
51            } catch (NumberFormatException ex) {
52                throw createParseException("bad integer format");
53            } catch (InvalidArgumentException ex) {
54                throw createParseException(ex.getMessage());
55            }
56            this.lexer.SPorHT();
57            super.parse(minse);
58            return minse;
59
60        } finally {
61            if (debug)
62                dbg_leave("parse");
63        }
64
65    }
66
67    public static void main(String args[]) throws ParseException {
68        String to[] =
69            {   "Min-SE: 30\n",
70                "Min-SE: 45;some-param=somevalue\n",
71            };
72
73        for (int i = 0; i < to.length; i++) {
74            MinSEParser tp = new MinSEParser(to[i]);
75            MinSE t = (MinSE) tp.parse();
76            System.out.println("encoded = " + t.encode());
77            System.out.println("\ntime=" + t.getExpires() );
78            if ( t.getParameter("some-param") != null)
79                System.out.println("some-param=" + t.getParameter("some-param") );
80
81        }
82    }
83
84
85
86
87}
88