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 a list of route headers.
32: *
33: *@version JAIN-SIP-1.1
34: *
35: *<a href="{@docRoot}/uncopyright.html">This code is in the public domain.</a>
36: *
37: *@version 1.0
38: */
39: public class RecordRouteParser extends AddressParametersParser {
40: /** Default constructor. */
41: RecordRouteParser() {
42: }
43:
44: /**
45: * Constructor with initial record route header.
46: * @param recordRoute message to parse to set
47: */
48: public RecordRouteParser(String recordRoute) {
49: super (recordRoute);
50: }
51:
52: /**
53: * Constructor with initial lexer engine.
54: * @param lexer initial lexer engine
55: */
56: protected RecordRouteParser(Lexer lexer) {
57: super (lexer);
58: }
59:
60: /**
61: * Parses the String message and generate the RecordRoute List Object.
62: * @return Header the RecordRoute List object
63: * @throws ParseException if errors occur during the parsing
64: */
65: public Header parse() throws ParseException {
66: RecordRouteList recordRouteList = new RecordRouteList();
67:
68: if (debug)
69: dbg_enter("RecordRouteParser.parse");
70:
71: try {
72: this .lexer.match(TokenTypes.RECORD_ROUTE);
73: this .lexer.SPorHT();
74: this .lexer.match(':');
75: this .lexer.SPorHT();
76: while (true) {
77: RecordRouteHeader recordRoute = new RecordRouteHeader();
78: super .parse(recordRoute);
79: recordRouteList.add(recordRoute);
80: this .lexer.SPorHT();
81: if (lexer.lookAhead(0) == ',') {
82: this .lexer.match(',');
83: this .lexer.SPorHT();
84: } else if (lexer.lookAhead(0) == '\n')
85: break;
86: else
87: throw createParseException("unexpected char");
88: }
89: return recordRouteList;
90: } finally {
91: if (debug)
92: dbg_leave("RecordRouteParser.parse");
93: }
94: }
95: }
|