/* * Conditions Of Use * * This software was developed by employees of the National Institute of * Standards and Technology (NIST), an agency of the Federal Government. * Pursuant to title 15 Untied States Code Section 105, works of NIST * employees are not subject to copyright protection in the United States * and are considered to be in the public domain. As a result, a formal * license is not needed to use the software. * * This software is provided by NIST as a service and is expressly * provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED * OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT * AND DATA ACCURACY. NIST does not warrant or make any representations * regarding the use of the software or the results thereof, including but * not limited to the correctness, accuracy, reliability or usefulness of * the software. * * Permission to use this software is contingent upon your acceptance * of the terms of this agreement * * . * */ package gov.nist.javax.sdp.parser; import java.util.*; import gov.nist.core.*; import gov.nist.javax.sdp.fields.*; import gov.nist.javax.sdp.*; import java.text.ParseException; // Acknowledgement: this includes a bug fix submitted by // Rafael Barriuso rbarriuso@dit.upm.es /** Parser for SDP Announce messages. */ public class SDPAnnounceParser extends ParserCore { protected Lexer lexer; protected Vector sdpMessage; /** Creates new SDPAnnounceParser * @param sdpMessage Vector of messages to parse. */ public SDPAnnounceParser(Vector sdpMessage) { this.sdpMessage = sdpMessage; } /** Create a new SDPAnnounceParser. *@param message string containing the sdp announce message. * */ public SDPAnnounceParser(String message) { int start = 0; String line = null; // Return trivially if there is no sdp announce message // to be parsed. Bruno Konik noticed this bug. if (message == null ) return; sdpMessage = new Vector(); // Fix by Omnitor (Andreas & Benjamin) 2006-09-27 int ix1 = message.indexOf("\n", start); int ix2 = message.indexOf("\r", start); String endingSeparator; if (ix1>0 && ix2<0) { // Only "\n" endingSeparator = "\n"; } else if (ix1<0 && ix2>0) { // Only "\r" endingSeparator = "\r"; } else if (ix1 0 && index2 < 0) { // there are only "\n" separators line = sdpAnnounce.substring(start, index); start = index + 1; } else if (index < 0 && index2 > 0) { //bug fix: there are only "\r" separators line = sdpAnnounce.substring(start, index2); start = index2 + 1; } else if (index > 0 && index2 > 0) { // there are "\r\n" or "\n\r" (if exists) separators if (index > index2) { line = sdpAnnounce.substring(start, index2); start = index + 1; } else { line = sdpAnnounce.substring(start, index); start = index2 + 1; } } else if (index < 0 && index2 < 0) // end break; sdpMessage.addElement(line); } } public SessionDescriptionImpl parse() throws ParseException { SessionDescriptionImpl retval = new SessionDescriptionImpl(); for (int i = 0; i < sdpMessage.size(); i++) { String field = (String) sdpMessage.elementAt(i); SDPParser sdpParser = ParserFactory.createParser(field); SDPField sdpField = sdpParser.parse(); retval.addField(sdpField); } return retval; } public static void main( String [] args ) throws Exception { String sdpData = "\r\n " + "v=0\r\n" + "o=4855 13760799956958020 13760799956958020" + " IN IP4 129.6.55.78\r\n" + "s=mysession session\r\n" + "p=+46 8 52018010\r\n" + "c=IN IP4 129.6.55.78\r\n" + "t=0 0\r\n" + "m=audio 6022 RTP/AVP 0 4 18\r\n" + "a=rtpmap:0 PCMU/8000\r\n" + "a=rtpmap:4 G723/8000\r\n" + "a=rtpmap:18 G729A/8000\r\n" + "a=ptime:20\r\n"; SDPAnnounceParser parser = new SDPAnnounceParser (sdpData); SessionDescriptionImpl sessiondescription = parser.parse(); System.out.println("Encoded structure = " + sessiondescription.toString() ); } } /* * $Log: SDPAnnounceParser.java,v $ * Revision 1.1 2007-12-26 22:58:19 wonsang * initial * * Revision 1.1 2007/12/18 23:06:55 wonsang * initial unmodified * * Revision 1.4 2006/09/27 09:24:58 apiirimets * Fixed bug with SDPs that only contains \n (and not \r). * * Revision 1.3 2006/09/25 07:12:13 apiirimets * Missed some things in forst commit, here is the complete new version. * * Revision 1.7 2006/07/13 09:02:37 mranga * Issue number: * Obtained from: * Submitted by: jeroen van bemmel * Reviewed by: mranga * Moved some changes from jain-sip-1.2 to java.net * * CVS: ---------------------------------------------------------------------- * CVS: Issue number: * CVS: If this change addresses one or more issues, * CVS: then enter the issue number(s) here. * CVS: Obtained from: * CVS: If this change has been taken from another system, * CVS: then name the system in this line, otherwise delete it. * CVS: Submitted by: * CVS: If this code has been contributed to the project by someone else; i.e., * CVS: they sent us a patch or a set of diffs, then include their name/email * CVS: address here. If this is your work then delete this line. * CVS: Reviewed by: * CVS: If we are doing pre-commit code reviews and someone else has * CVS: reviewed your changes, include their name(s) here. * CVS: If you have not had it reviewed then delete this line. * * Revision 1.3 2006/06/19 06:47:26 mranga * javadoc fixups * * Revision 1.2 2006/06/16 15:26:28 mranga * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak * * Revision 1.1.1.1 2005/10/04 17:12:34 mranga * * Import * * * Revision 1.5 2005/01/21 21:19:24 mranga * Reviewed by: mranga * Strip leading whitespace while parsing Sdp Announce messages. * * Revision 1.4 2004/02/18 14:33:02 mranga * Submitted by: Bruno Konik * Reviewed by: mranga * Remove extraneous newline in encoding messages. Test for empty sdp announce * rather than die with null when null is passed to sdp announce parser. * Fixed bug in checking for \n\n when looking for message end. * * Revision 1.3 2004/01/22 13:26:28 sverker * Issue number: * Obtained from: * Submitted by: sverker * Reviewed by: mranga * * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags. * * CVS: ---------------------------------------------------------------------- * CVS: Issue number: * CVS: If this change addresses one or more issues, * CVS: then enter the issue number(s) here. * CVS: Obtained from: * CVS: If this change has been taken from another system, * CVS: then name the system in this line, otherwise delete it. * CVS: Submitted by: * CVS: If this code has been contributed to the project by someone else; i.e., * CVS: they sent us a patch or a set of diffs, then include their name/email * CVS: address here. If this is your work then delete this line. * CVS: Reviewed by: * CVS: If we are doing pre-commit code reviews and someone else has * CVS: reviewed your changes, include their name(s) here. * CVS: If you have not had it reviewed then delete this line. * */