/* * 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.sip.parser; import gov.nist.javax.sip.header.*; import gov.nist.core.*; import java.text.ParseException; /** * Parser for Require header. * * @version 1.2 $Revision: 1.7 $ $Date: 2009-07-17 18:58:04 $ * * @author Olivier Deruelle * @author M. Ranganathan <br/> * * * * @version 1.0 */ public class RequireParser extends HeaderParser { /** * Creates a new instance of RequireParser * @param require the header to parse */ public RequireParser(String require) { super(require); } /** * Constructor * @param lexer the lexer to use to parse the header */ protected RequireParser(Lexer lexer) { super(lexer); } /** * parse the String message * @return SIPHeader (RequireList object) * @throws SIPParseException if the message does not respect the spec. */ public SIPHeader parse() throws ParseException { RequireList requireList = new RequireList(); if (debug) dbg_enter("RequireParser.parse"); try { headerName(TokenTypes.REQUIRE); while (lexer.lookAhead(0) != '\n') { Require r = new Require(); r.setHeaderName(SIPHeaderNames.REQUIRE); // Parsing the option tag this.lexer.match(TokenTypes.ID); Token token = lexer.getNextToken(); r.setOptionTag(token.getTokenValue()); this.lexer.SPorHT(); requireList.add(r); while (lexer.lookAhead(0) == ',') { this.lexer.match(','); this.lexer.SPorHT(); r = new Require(); // Parsing the option tag this.lexer.match(TokenTypes.ID); token = lexer.getNextToken(); r.setOptionTag(token.getTokenValue()); this.lexer.SPorHT(); requireList.add(r); } } } finally { if (debug) dbg_leave("RequireParser.parse"); } return requireList; } /** Test program public static void main(String args[]) throws ParseException { String r[] = { "Require: 100rel \n", "Require: 100rel, 200ok , 389\n" }; for (int i = 0; i < r.length; i++ ) { RequireParser parser = new RequireParser(r[i]); RequireList rl= (RequireList) parser.parse(); System.out.println("encoded = " + rl.encode()); } } */ } /* * $Log: not supported by cvs2svn $ * Revision 1.6 2006/07/13 09:02:18 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 06:47:27 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 17:12:36 mranga * * Import * * * Revision 1.4 2004/01/22 13:26:31 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. * */