android.gov.nist.javax.sip.parser.DateParser Maven / Gradle / Ivy
/*
* 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 android.gov.nist.javax.sip.parser;
import android.gov.nist.javax.sip.header.*;
import java.util.*;
import java.text.ParseException;
/**
* Parser for SIP Date field. Converts from SIP Date to the
* internal storage (Calendar)
*
* @version 1.2 $Revision: 1.11 $ $Date: 2009-07-17 18:57:59 $
*/
public class DateParser extends HeaderParser {
/**
* Constructor
* @param date message to parse to set
*/
public DateParser(String date) {
super(date);
}
protected DateParser(Lexer lexer) {
super(lexer);
}
/**
* Parse method.
* @throws ParseException
* @return the parsed Date header/
*/
public SIPHeader parse() throws ParseException {
if (debug)
dbg_enter("DateParser.parse");
try {
headerName(TokenTypes.DATE);
wkday();
lexer.match(',');
lexer.match(' ');
Calendar cal = date();
lexer.match(' ');
time(cal);
lexer.match(' ');
String tzone = this.lexer.ttoken().toLowerCase();
if (!"gmt".equals(tzone))
throw createParseException("Bad Time Zone " + tzone);
this.lexer.match('\n');
SIPDateHeader retval = new SIPDateHeader();
retval.setDate(cal);
return retval;
} finally {
if (debug)
dbg_leave("DateParser.parse");
}
}
}