1 /* 2 * Conditions Of Use 3 * 4 * This software was developed by employees of the National Institute of 5 * Standards and Technology (NIST), an agency of the Federal Government. 6 * Pursuant to title 15 Untied States Code Section 105, works of NIST 7 * employees are not subject to copyright protection in the United States 8 * and are considered to be in the public domain. As a result, a formal 9 * license is not needed to use the software. 10 * 11 * This software is provided by NIST as a service and is expressly 12 * provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED 13 * OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF 14 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT 15 * AND DATA ACCURACY. NIST does not warrant or make any representations 16 * regarding the use of the software or the results thereof, including but 17 * not limited to the correctness, accuracy, reliability or usefulness of 18 * the software. 19 * 20 * Permission to use this software is contingent upon your acceptance 21 * of the terms of this agreement 22 * 23 * . 24 * 25 */ 26 package gov.nist.javax.sip.parser; 27 28 import gov.nist.javax.sip.header.*; 29 import gov.nist.core.*; 30 import java.text.ParseException; 31 32 /** 33 * Parser for Require header. 34 * 35 * @version 1.2 $Revision: 1.7 $ $Date: 2009/07/17 18:58:04 $ 36 * 37 * @author Olivier Deruelle 38 * @author M. Ranganathan <br/> 39 * 40 * 41 * 42 * @version 1.0 43 */ 44 public class RequireParser extends HeaderParser { 45 46 /** 47 * Creates a new instance of RequireParser 48 * @param require the header to parse 49 */ RequireParser(String require)50 public RequireParser(String require) { 51 super(require); 52 } 53 54 /** 55 * Constructor 56 * @param lexer the lexer to use to parse the header 57 */ RequireParser(Lexer lexer)58 protected RequireParser(Lexer lexer) { 59 super(lexer); 60 } 61 62 /** 63 * parse the String message 64 * @return SIPHeader (RequireList object) 65 * @throws SIPParseException if the message does not respect the spec. 66 */ parse()67 public SIPHeader parse() throws ParseException { 68 RequireList requireList = new RequireList(); 69 if (debug) 70 dbg_enter("RequireParser.parse"); 71 72 try { 73 headerName(TokenTypes.REQUIRE); 74 75 while (lexer.lookAhead(0) != '\n') { 76 Require r = new Require(); 77 r.setHeaderName(SIPHeaderNames.REQUIRE); 78 79 // Parsing the option tag 80 this.lexer.match(TokenTypes.ID); 81 Token token = lexer.getNextToken(); 82 r.setOptionTag(token.getTokenValue()); 83 this.lexer.SPorHT(); 84 85 requireList.add(r); 86 87 while (lexer.lookAhead(0) == ',') { 88 this.lexer.match(','); 89 this.lexer.SPorHT(); 90 91 r = new Require(); 92 93 // Parsing the option tag 94 this.lexer.match(TokenTypes.ID); 95 token = lexer.getNextToken(); 96 r.setOptionTag(token.getTokenValue()); 97 this.lexer.SPorHT(); 98 99 requireList.add(r); 100 } 101 102 } 103 } finally { 104 if (debug) 105 dbg_leave("RequireParser.parse"); 106 } 107 108 return requireList; 109 } 110 111 /** Test program 112 public static void main(String args[]) throws ParseException { 113 String r[] = { 114 "Require: 100rel \n", 115 "Require: 100rel, 200ok , 389\n" 116 }; 117 118 for (int i = 0; i < r.length; i++ ) { 119 RequireParser parser = 120 new RequireParser(r[i]); 121 RequireList rl= (RequireList) parser.parse(); 122 System.out.println("encoded = " + rl.encode()); 123 } 124 } 125 */ 126 127 } 128 /* 129 * $Log: RequireParser.java,v $ 130 * Revision 1.7 2009/07/17 18:58:04 emcho 131 * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project. 132 * 133 * Revision 1.6 2006/07/13 09:02:18 mranga 134 * Issue number: 135 * Obtained from: 136 * Submitted by: jeroen van bemmel 137 * Reviewed by: mranga 138 * Moved some changes from jain-sip-1.2 to java.net 139 * 140 * CVS: ---------------------------------------------------------------------- 141 * CVS: Issue number: 142 * CVS: If this change addresses one or more issues, 143 * CVS: then enter the issue number(s) here. 144 * CVS: Obtained from: 145 * CVS: If this change has been taken from another system, 146 * CVS: then name the system in this line, otherwise delete it. 147 * CVS: Submitted by: 148 * CVS: If this code has been contributed to the project by someone else; i.e., 149 * CVS: they sent us a patch or a set of diffs, then include their name/email 150 * CVS: address here. If this is your work then delete this line. 151 * CVS: Reviewed by: 152 * CVS: If we are doing pre-commit code reviews and someone else has 153 * CVS: reviewed your changes, include their name(s) here. 154 * CVS: If you have not had it reviewed then delete this line. 155 * 156 * Revision 1.3 2006/06/19 06:47:27 mranga 157 * javadoc fixups 158 * 159 * Revision 1.2 2006/06/16 15:26:28 mranga 160 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak 161 * 162 * Revision 1.1.1.1 2005/10/04 17:12:36 mranga 163 * 164 * Import 165 * 166 * 167 * Revision 1.4 2004/01/22 13:26:31 sverker 168 * Issue number: 169 * Obtained from: 170 * Submitted by: sverker 171 * Reviewed by: mranga 172 * 173 * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags. 174 * 175 * CVS: ---------------------------------------------------------------------- 176 * CVS: Issue number: 177 * CVS: If this change addresses one or more issues, 178 * CVS: then enter the issue number(s) here. 179 * CVS: Obtained from: 180 * CVS: If this change has been taken from another system, 181 * CVS: then name the system in this line, otherwise delete it. 182 * CVS: Submitted by: 183 * CVS: If this code has been contributed to the project by someone else; i.e., 184 * CVS: they sent us a patch or a set of diffs, then include their name/email 185 * CVS: address here. If this is your work then delete this line. 186 * CVS: Reviewed by: 187 * CVS: If we are doing pre-commit code reviews and someone else has 188 * CVS: reviewed your changes, include their name(s) here. 189 * CVS: If you have not had it reviewed then delete this line. 190 * 191 */ 192