01: /*
02: * Portions Copyright 2000-2007 Sun Microsystems, Inc. All Rights
03: * Reserved. Use is subject to license terms.
04: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
05: *
06: * This program is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU General Public License version
08: * 2 only, as published by the Free Software Foundation.
09: *
10: * This program is distributed in the hope that it will be useful, but
11: * WITHOUT ANY WARRANTY; without even the implied warranty of
12: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: * General Public License version 2 for more details (a copy is
14: * included at /legal/license.txt).
15: *
16: * You should have received a copy of the GNU General Public License
17: * version 2 along with this work; if not, write to the Free Software
18: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
19: * 02110-1301 USA
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
22: * Clara, CA 95054 or visit www.sun.com if you need additional
23: * information or have any questions.
24: */
25: package gov.nist.siplite.parser;
26:
27: import gov.nist.siplite.header.*;
28: import gov.nist.core.*;
29:
30: /**
31: * Parser for CALL ID header.
32: *
33: * @version JAIN-SIP-1.1
34: *
35: *
36: * <a href="{@docRoot}/uncopyright.html">This code is in the public domain.</a>
37: *
38: */
39: public class CallIDParser extends HeaderParser {
40: /** Default constructor. */
41: CallIDParser() {
42: }
43:
44: /**
45: * Creates new CallIdHeaderParser.
46: * @param callID message to parse to set
47: */
48: public CallIDParser(String callID) {
49: super (callID);
50: }
51:
52: /**
53: * Constructor within initial lexer engine.
54: * @param lexer to set
55: */
56: protected CallIDParser(Lexer lexer) {
57: super (lexer);
58: }
59:
60: /**
61: * Parses the String message.
62: * @return Header (CallIdHeader object)
63: * @throws ParseException if the message does not respect the spec.
64: */
65: public Header parse() throws ParseException {
66: if (debug)
67: dbg_enter("parse");
68: try {
69: this .lexer.match(TokenTypes.CALL_ID);
70: this .lexer.SPorHT();
71: this .lexer.match(':');
72: this .lexer.SPorHT();
73:
74: CallIdHeader callID = new CallIdHeader();
75:
76: this .lexer.SPorHT();
77: String rest = lexer.getRest();
78: callID.setCallId(rest.trim());
79: return callID;
80: } finally {
81: if (debug)
82: dbg_leave("parse");
83: }
84: }
85: }
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