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      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 java.text.ParseException;
     30 import javax.sip.*;
     31 
     32 /**
     33  * Parser for TimeStamp header.
     34  *
     35  * @version 1.2 $Revision: 1.9 $ $Date: 2009/10/18 13:46:39 $
     36  *
     37  * @author Olivier Deruelle   <br/>
     38  * @author M. Ranganathan   <br/>
     39  *
     40  *
     41  */
     42 public class TimeStampParser extends HeaderParser {
     43 
     44     /**
     45      * Creates a new instance of TimeStampParser
     46      * @param timeStamp the header to parse
     47      */
     48     public TimeStampParser(String timeStamp) {
     49         super(timeStamp);
     50     }
     51 
     52     /**
     53      * Constructor
     54      * @param lexer the lexer to use to parse the header
     55      */
     56     protected TimeStampParser(Lexer lexer) {
     57         super(lexer);
     58     }
     59 
     60     /**
     61      * parse the String message
     62      * @return SIPHeader (TimeStamp object)
     63      * @throws SIPParseException if the message does not respect the spec.
     64      */
     65     public SIPHeader parse() throws ParseException {
     66 
     67         if (debug)
     68             dbg_enter("TimeStampParser.parse");
     69         TimeStamp timeStamp = new TimeStamp();
     70         try {
     71             headerName(TokenTypes.TIMESTAMP);
     72 
     73             timeStamp.setHeaderName(SIPHeaderNames.TIMESTAMP);
     74 
     75             this.lexer.SPorHT();
     76             String firstNumber = this.lexer.number();
     77 
     78             try {
     79 
     80                 if (lexer.lookAhead(0) == '.') {
     81                     this.lexer.match('.');
     82                     String secondNumber = this.lexer.number();
     83 
     84                     String s = firstNumber + "." + secondNumber;
     85                     float ts = Float.parseFloat(s);
     86                     timeStamp.setTimeStamp(ts);
     87                 } else {
     88                     long ts = Long.parseLong(firstNumber);
     89                     timeStamp.setTime(ts);
     90                 }
     91 
     92 
     93             } catch (NumberFormatException ex) {
     94                 throw createParseException(ex.getMessage());
     95             } catch (InvalidArgumentException ex) {
     96                 throw createParseException(ex.getMessage());
     97             }
     98 
     99             this.lexer.SPorHT();
    100             if (lexer.lookAhead(0) != '\n') {
    101                 firstNumber = this.lexer.number();
    102 
    103                 try {
    104 
    105                     if (lexer.lookAhead(0) == '.') {
    106                         this.lexer.match('.');
    107                         String secondNumber = this.lexer.number();
    108 
    109                         String s = firstNumber + "." + secondNumber;
    110                         float ts = Float.parseFloat(s);
    111                         timeStamp.setDelay(ts);
    112                     } else {
    113                         int ts = Integer.parseInt(firstNumber);
    114                         timeStamp.setDelay(ts);
    115                     }
    116 
    117 
    118                 } catch (NumberFormatException ex) {
    119                     throw createParseException(ex.getMessage());
    120                 } catch (InvalidArgumentException ex) {
    121                     throw createParseException(ex.getMessage());
    122                 }
    123             }
    124 
    125         } finally {
    126             if (debug)
    127                 dbg_leave("TimeStampParser.parse");
    128         }
    129 
    130         return timeStamp;
    131     }
    132 
    133 
    134 
    135 
    136 }
    137 /*
    138  * $Log: TimeStampParser.java,v $
    139  * Revision 1.9  2009/10/18 13:46:39  deruelle_jean
    140  * FindBugs Fixes (Category Performance Warnings)
    141  *
    142  * Issue number:
    143  * Obtained from:
    144  * Submitted by: Jean Deruelle
    145  * Reviewed by:
    146  *
    147  * Revision 1.8  2009/07/17 18:58:06  emcho
    148  * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
    149  *
    150  * Revision 1.7  2006/08/15 21:44:50  mranga
    151  * Issue number:
    152  * Obtained from:
    153  * Submitted by:  mranga
    154  * Reviewed by:   mranga
    155  * Incorporating the latest API changes from Phelim
    156  * CVS: ----------------------------------------------------------------------
    157  * CVS: Issue number:
    158  * CVS:   If this change addresses one or more issues,
    159  * CVS:   then enter the issue number(s) here.
    160  * CVS: Obtained from:
    161  * CVS:   If this change has been taken from another system,
    162  * CVS:   then name the system in this line, otherwise delete it.
    163  * CVS: Submitted by:
    164  * CVS:   If this code has been contributed to the project by someone else; i.e.,
    165  * CVS:   they sent us a patch or a set of diffs, then include their name/email
    166  * CVS:   address here. If this is your work then delete this line.
    167  * CVS: Reviewed by:
    168  * CVS:   If we are doing pre-commit code reviews and someone else has
    169  * CVS:   reviewed your changes, include their name(s) here.
    170  * CVS:   If you have not had it reviewed then delete this line.
    171  *
    172  * Revision 1.6  2006/07/13 09:02:14  mranga
    173  * Issue number:
    174  * Obtained from:
    175  * Submitted by:  jeroen van bemmel
    176  * Reviewed by:   mranga
    177  * Moved some changes from jain-sip-1.2 to java.net
    178  *
    179  * CVS: ----------------------------------------------------------------------
    180  * CVS: Issue number:
    181  * CVS:   If this change addresses one or more issues,
    182  * CVS:   then enter the issue number(s) here.
    183  * CVS: Obtained from:
    184  * CVS:   If this change has been taken from another system,
    185  * CVS:   then name the system in this line, otherwise delete it.
    186  * CVS: Submitted by:
    187  * CVS:   If this code has been contributed to the project by someone else; i.e.,
    188  * CVS:   they sent us a patch or a set of diffs, then include their name/email
    189  * CVS:   address here. If this is your work then delete this line.
    190  * CVS: Reviewed by:
    191  * CVS:   If we are doing pre-commit code reviews and someone else has
    192  * CVS:   reviewed your changes, include their name(s) here.
    193  * CVS:   If you have not had it reviewed then delete this line.
    194  *
    195  * Revision 1.5  2006/06/19 06:47:27  mranga
    196  * javadoc fixups
    197  *
    198  * Revision 1.4  2006/06/16 15:26:28  mranga
    199  * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
    200  *
    201  * Revision 1.3  2006/05/25 23:46:23  mranga
    202  * Added @author NIST to all API files. Moved a package around in the tck directory.
    203  *
    204  * Ranga.
    205  *
    206  * Revision 1.2  2006/05/18 10:08:43  mranga
    207  * Fixes null pointer in comparison when host is not specified. Add methods to allow longs and ints as args in TimeStamp Header.
    208  *
    209  * Ranga.
    210  *
    211  * Revision 1.1.1.1  2005/10/04 17:12:36  mranga
    212  *
    213  * Import
    214  *
    215  *
    216  * Revision 1.4  2004/01/22 13:26:32  sverker
    217  * Issue number:
    218  * Obtained from:
    219  * Submitted by:  sverker
    220  * Reviewed by:   mranga
    221  *
    222  * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
    223  *
    224  * CVS: ----------------------------------------------------------------------
    225  * CVS: Issue number:
    226  * CVS:   If this change addresses one or more issues,
    227  * CVS:   then enter the issue number(s) here.
    228  * CVS: Obtained from:
    229  * CVS:   If this change has been taken from another system,
    230  * CVS:   then name the system in this line, otherwise delete it.
    231  * CVS: Submitted by:
    232  * CVS:   If this code has been contributed to the project by someone else; i.e.,
    233  * CVS:   they sent us a patch or a set of diffs, then include their name/email
    234  * CVS:   address here. If this is your work then delete this line.
    235  * CVS: Reviewed by:
    236  * CVS:   If we are doing pre-commit code reviews and someone else has
    237  * CVS:   reviewed your changes, include their name(s) here.
    238  * CVS:   If you have not had it reviewed then delete this line.
    239  *
    240  */
    241