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:
26: package gov.nist.siplite.parser;
27:
28: import gov.nist.core.*;
29: import gov.nist.siplite.header.*;
30:
31: /**
32: * Parser for content type header.
33: *
34: *
35: *
36: * <a href="{@docRoot}/uncopyright.html">This code is in the public domain.</a>
37: *
38: */
39: public class ContentTypeParser extends ParametersParser {
40: /** Default constructor. */
41: ContentTypeParser() {
42: }
43:
44: /**
45: * Constructor with initial content type header string.
46: * @param contentType initial content length header
47: */
48: public ContentTypeParser(String contentType) {
49: super (contentType);
50: }
51:
52: /**
53: * Constructor with initial lexer engine.
54: * @param lexer initial lexer engine
55: */
56: protected ContentTypeParser(Lexer lexer) {
57: super (lexer);
58: }
59:
60: /**
61: * Invokes parser for content type header field.
62: * @return the parsed content type header
63: * @exception ParseException if a parsing error occurs
64: */
65: public Header parse() throws ParseException {
66:
67: ContentTypeHeader contentType = new ContentTypeHeader();
68: if (debug)
69: dbg_enter("ContentTypeParser.parse");
70:
71: try {
72: this .headerName(TokenTypes.CONTENT_TYPE);
73:
74: // The type:
75: lexer.match(TokenTypes.ID);
76: Token type = lexer.getNextToken();
77: this .lexer.SPorHT();
78: contentType.setContentType(type.getTokenValue());
79:
80: // The sub-type:
81: lexer.match('/');
82: lexer.match(TokenTypes.ID);
83: Token subType = lexer.getNextToken();
84: this .lexer.SPorHT();
85: contentType.setContentSubType(subType.getTokenValue());
86: super .parse(contentType);
87: this .lexer.match('\n');
88: } finally {
89: if (debug)
90: dbg_leave("ContentTypeParser.parse");
91: }
92: return contentType;
93:
94: }
95:
96: }
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