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 /******************************************* 27 * PRODUCT OF PT INOVACAO - EST DEPARTMENT * 28 *******************************************/ 29 30 package gov.nist.javax.sip.parser.ims; 31 32 import gov.nist.javax.sip.header.SIPHeader; 33 import gov.nist.javax.sip.header.ims.Path; 34 import gov.nist.javax.sip.header.ims.PathList; 35 import gov.nist.javax.sip.parser.AddressParametersParser; 36 import gov.nist.javax.sip.parser.Lexer; 37 import gov.nist.javax.sip.parser.TokenTypes; 38 39 import java.text.ParseException; 40 41 /** 42 * @author ALEXANDRE MIGUEL SILVA SANTOS 43 */ 44 45 46 public class PathParser extends AddressParametersParser implements TokenTypes { 47 48 /** 49 * Constructor 50 */ PathParser(String path)51 public PathParser(String path) { 52 super(path); 53 54 } 55 PathParser(Lexer lexer)56 protected PathParser(Lexer lexer) { 57 super(lexer); 58 59 } 60 61 62 63 64 /** 65 * parse the String message and generate the RecordRoute List Object 66 * @return SIPHeader the RecordRoute List object 67 * @throws ParseException if errors occur during the parsing 68 */ 69 parse()70 public SIPHeader parse() throws ParseException { 71 72 PathList pathList = new PathList(); 73 74 if (debug) 75 dbg_enter("PathParser.parse"); 76 77 try { 78 this.lexer.match(TokenTypes.PATH); 79 this.lexer.SPorHT(); 80 this.lexer.match(':'); 81 this.lexer.SPorHT(); 82 while (true) { 83 Path path = new Path(); 84 super.parse(path); 85 pathList.add(path); 86 this.lexer.SPorHT(); 87 char la = lexer.lookAhead(0); 88 if (la == ',') { 89 this.lexer.match(','); 90 this.lexer.SPorHT(); 91 } else if (la == '\n') 92 break; 93 else 94 throw createParseException("unexpected char"); 95 } 96 return pathList; 97 } finally { 98 if (debug) 99 dbg_leave("PathParser.parse"); 100 } 101 102 } 103 104 105 106 } 107