content: /*
  * 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 gov2.nist.javax2.sip.parser;
  
  import gov2.nist.core.*;
  import gov2.nist.javax2.sip.header.*;
  
  import java.text.ParseException;
  
  import javax2.sip.*;
  
  /**
   * Parser for Warning header.
   *
   * @version 1.2
   *
   * @author Olivier Deruelle
   * @author M. Ranganathan
   *
   *
   *
   * @version 1.0
   */
  public class WarningParser extends HeaderParser {
  
      /**
       * Constructor
       *
       * @param warning -
       *            Warning header to parse
       */
      public WarningParser(String warning) {
          super(warning);
      }
  
      /**
       * Cosntructor
       *
       * @param lexer -
       *            the lexer to use.
       */
      protected WarningParser(Lexer lexer) {
          super(lexer);
      }
  
      /**
       * parse the String message
       *
       * @return SIPHeader (WarningList object)
       * @throws SIPParseException
       *             if the message does not respect the spec.
       */
      public SIPHeader parse() throws ParseException {
          WarningList warningList = new WarningList();
          if (debug)
              dbg_enter("WarningParser.parse");
  
          try {
              headerName(TokenTypes.WARNING);
  
              while (lexer.lookAhead(0) != '\n') {
                  Warning warning = new Warning();
                  warning.setHeaderName(SIPHeaderNames.WARNING);
  
                  // Parsing the 3digits code
                  this.lexer.match(TokenTypes.ID);
                  Token token = lexer.getNextToken();
                  try {
                      int code = Integer.parseInt(token.getTokenValue());
                      warning.setCode(code);
                  } catch (NumberFormatException ex) {
                      throw createParseException(ex.getMessage());
                  } catch (InvalidArgumentException ex) {
                      throw createParseException(ex.getMessage());
                  }
                  this.lexer.SPorHT();
  
                  // Parsing the agent
                  this.lexer.match(TokenTypes.ID);
                  token = lexer.getNextToken();
                  // Bug reported by zvali@dev.java.net
                  if (lexer.lookAhead(0) == ':') {
                      this.lexer.match(':');
                      this.lexer.match(TokenTypes.ID);
                      Token token2 = lexer.getNextToken();
                      warning.setAgent(token.getTokenValue() + ":"
                              + token2.getTokenValue());
                  } else {
                      warning.setAgent(token.getTokenValue());
                  }
  
                  this.lexer.SPorHT();
  
                  // Parsing the text
                  String text = this.lexer.quotedString();
                  warning.setText(text);
                  this.lexer.SPorHT();
  
                  warningList.add(warning);
  
                  while (lexer.lookAhead(0) == ',') {
                      this.lexer.match(',');
                      this.lexer.SPorHT();
  
                      warning = new Warning();
  
                      // Parsing the 3digits code
                      this.lexer.match(TokenTypes.ID);
                      Token tok = lexer.getNextToken();
                      try {
                          int code = Integer.parseInt(tok.getTokenValue());
                          warning.setCode(code);
                      } catch (NumberFormatException ex) {
                          throw createParseException(ex.getMessage());
                      } catch (InvalidArgumentException ex) {
                          throw createParseException(ex.getMessage());
                      }
                      this.lexer.SPorHT();
  
                      // Parsing the agent
                      this.lexer.match(TokenTypes.ID);
                      tok = lexer.getNextToken();
  
                      // Bug reported by zvali@dev.java.net
  
                      if (lexer.lookAhead(0) == ':') {
                          this.lexer.match(':');
                          this.lexer.match(TokenTypes.ID);
                          Token token2 = lexer.getNextToken();
                          warning.setAgent(tok.getTokenValue() + ":"
                                  + token2.getTokenValue());
                      } else {
                          warning.setAgent(tok.getTokenValue());
                      }
  
                      this.lexer.SPorHT();
  
                      // Parsing the text
                      text = this.lexer.quotedString();
                      warning.setText(text);
                      this.lexer.SPorHT();
  
                      warningList.add(warning);
                  }
  
              }
          } finally {
              if (debug)
                  dbg_leave("WarningParser.parse");
          }
  
          return warningList;
      }
  
      /**
       * public static void main(String args[]) throws ParseException { String
       * warning[] = { "Warning: 307 isi.edu \"Session parameter 'foo' not
       * understood\"\n", "Warning: 301 isi.edu \"Incompatible network address
       * type 'E.164'\"\n", "Warning: 312 ii.edu \"Soda\", "+ " 351 i.edu \"I
       * network address 'E.164'\" , 323 ii.edu \"Sodwea\"\n", "Warning: 392
       * 192.168.89.71:5060 \"Noisy feedback tells: pid=936
       * req_src_ip=192.168.89.20 in_uri=sip:xxx@yyyy.org:5061
       * out_uri=sip:xxx@yyyy.org:5061 via_cnt==1\"\n" };
       *
       * for (int i = 0; i < warning.length; i++ ) { WarningParser parser = new
       * WarningParser(warning[i]); WarningList warningList= (WarningList)
       * parser.parse(); System.out.println("encoded = " + warningList.encode()); }
       *  }
       */
  
  }
  