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.javax.sdp.parser;
26:
27: import java.util.*;
28: import gov.nist.core.*;
29: import gov.nist.javax.sdp.fields.*;
30: import gov.nist.javax.sdp.*;
31:
32: /**
33: * Announcement parser.
34: */
35: public class SDPAnnounceParser extends ParserCore {
36: /** Current lexer engine. */
37: protected Lexer lexer;
38: /** The SDP message to be parsed. */
39: protected Vector sdpMessage;
40:
41: /**
42: * Creates new SDPAnnounceParser.
43: * @param sdpMessage Vector of messages to parse.
44: */
45: public SDPAnnounceParser(Vector sdpMessage) {
46: this .sdpMessage = sdpMessage;
47:
48: }
49:
50: /**
51: * Creates a new SDPAnnounceParser.
52: * @param sdpAnnounce message containing the sdp announce message.
53: */
54: public SDPAnnounceParser(String sdpAnnounce) {
55: sdpMessage = new Vector();
56: int start = 0;
57: if (sdpAnnounce == null)
58: return;
59: while (start < sdpAnnounce.length()) {
60: int add = 0;
61: int index = sdpAnnounce.indexOf("\n", start);
62: if (index == -1)
63: break;
64: if (sdpAnnounce.charAt(index - 1) == '\r') {
65: index = index - 1;
66: add = 1;
67: }
68: String line = sdpAnnounce.substring(start, index);
69: start = index + 1 + add;
70: sdpMessage.addElement(line);
71: }
72:
73: }
74:
75: /**
76: * Parses the session description field.
77: * @exception ParseException if a parsing error occurs
78: * @return the parsed session description field
79: */
80: public SessionDescriptionImpl parse() throws ParseException {
81: SessionDescriptionImpl retval = new SessionDescriptionImpl();
82: for (int i = 0; i < sdpMessage.size(); i++) {
83: String field = (String) sdpMessage.elementAt(i);
84: SDPParser sdpParser = ParserFactory.createParser(field);
85: SDPField sdpField = sdpParser.parse();
86: retval.addField(sdpField);
87: }
88: return retval;
89:
90: }
91:
92: }
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