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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      */
TimeStampParser(String timeStamp)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      */
TimeStampParser(Lexer lexer)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      */
parse()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