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.RecordRoute; 29 import gov.nist.javax.sip.header.RecordRouteList; 30 import gov.nist.javax.sip.header.SIPHeader; 31 32 import java.text.ParseException; 33 34 /** 35 * Parser for a list of route headers. 36 * 37 * @version 1.2 $Revision: 1.9 $ $Date: 2009/07/17 18:58:03 $ 38 * 39 * @author Olivier Deruelle <br/> 40 * @author M. Ranganathan <br/> 41 * 42 */ 43 public class RecordRouteParser extends AddressParametersParser { 44 45 /** 46 * Constructor 47 * @param recordRoute message to parse to set 48 */ 49 public RecordRouteParser(String recordRoute) { 50 super(recordRoute); 51 } 52 53 protected RecordRouteParser(Lexer lexer) { 54 super(lexer); 55 } 56 57 /** 58 * parse the String message and generate the RecordRoute List Object 59 * @return SIPHeader the RecordRoute List object 60 * @throws ParseException if errors occur during the parsing 61 */ 62 public SIPHeader parse() throws ParseException { 63 RecordRouteList recordRouteList = new RecordRouteList(); 64 65 if (debug) 66 dbg_enter("RecordRouteParser.parse"); 67 68 try { 69 this.lexer.match(TokenTypes.RECORD_ROUTE); 70 this.lexer.SPorHT(); 71 this.lexer.match(':'); 72 this.lexer.SPorHT(); 73 while (true) { 74 RecordRoute recordRoute = new RecordRoute(); 75 super.parse(recordRoute); 76 recordRouteList.add(recordRoute); 77 this.lexer.SPorHT(); 78 char la = lexer.lookAhead(0); 79 if (la == ',') { 80 this.lexer.match(','); 81 this.lexer.SPorHT(); 82 } else if (la == '\n') 83 break; 84 else 85 throw createParseException("unexpected char"); 86 } 87 return recordRouteList; 88 } finally { 89 if (debug) 90 dbg_leave("RecordRouteParser.parse"); 91 } 92 93 } 94 95 96 } 97