/*
* 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 gov.nist.javax.sip.parser;

import gov.nist.javax.sip.header.*;
import gov.nist.javax.sip.message.SIPRequest;

import java.text.ParseException;
import javax.sip.*;

import gov.nist.core.*;

/**
 * Parser for CSeq headers.
 * 
 * @version 1.2 $Revision: 1.10 $ $Date: 2006/08/15 21:44:50 $
 * 
 * @author M. Ranganathan 
 * @author Olivier Deruelle 
 * 
 */
public class CSeqParser extends HeaderParser {

    public CSeqParser(String cseq) {
        super(cseq);
    }

    protected CSeqParser(Lexer lexer) {
        super(lexer);
    }

    public SIPHeader parse() throws ParseException {
        try {
            CSeq c = new CSeq();

            this.lexer.match(TokenTypes.CSEQ);
            this.lexer.SPorHT();
            this.lexer.match(':');
            this.lexer.SPorHT();
            String number = this.lexer.number();
            c.setSeqNumber(Long.parseLong(number));
            this.lexer.SPorHT();
            String m = SIPRequest.getCannonicalName( method() );
            
            
            
            c.setMethod(m);
            this.lexer.SPorHT();
            this.lexer.match('\n');
            return c;
        } catch (NumberFormatException ex) {
            Debug.printStackTrace(ex);
            throw createParseException("Number format exception");
        } catch (InvalidArgumentException ex) {
            Debug.printStackTrace(ex);
            throw createParseException(ex.getMessage());
        }
    }

    /**
     *  
     */
}
/*
 * $Log: CSeqParser.java,v $
 * Revision 1.10  2006/08/15 21:44:50  mranga
 * Issue number:
 * Obtained from:
 * Submitted by:  mranga
 * Reviewed by:   mranga
 * Incorporating the latest API changes from Phelim
 * CVS: ----------------------------------------------------------------------
 * CVS: Issue number:
 * CVS:   If this change addresses one or more issues,
 * CVS:   then enter the issue number(s) here.
 * CVS: Obtained from:
 * CVS:   If this change has been taken from another system,
 * CVS:   then name the system in this line, otherwise delete it.
 * CVS: Submitted by:
 * CVS:   If this code has been contributed to the project by someone else; i.e.,
 * CVS:   they sent us a patch or a set of diffs, then include their name/email
 * CVS:   address here. If this is your work then delete this line.
 * CVS: Reviewed by:
 * CVS:   If we are doing pre-commit code reviews and someone else has
 * CVS:   reviewed your changes, include their name(s) here.
 * CVS:   If you have not had it reviewed then delete this line.
 *
 * Revision 1.9  2006/07/13 09:02:17  mranga
 * Issue number:
 * Obtained from:
 * Submitted by:  jeroen van bemmel
 * Reviewed by:   mranga
 * Moved some changes from jain-sip-1.2 to java.net
 *
 * CVS: ----------------------------------------------------------------------
 * CVS: Issue number:
 * CVS:   If this change addresses one or more issues,
 * CVS:   then enter the issue number(s) here.
 * CVS: Obtained from:
 * CVS:   If this change has been taken from another system,
 * CVS:   then name the system in this line, otherwise delete it.
 * CVS: Submitted by:
 * CVS:   If this code has been contributed to the project by someone else; i.e.,
 * CVS:   they sent us a patch or a set of diffs, then include their name/email
 * CVS:   address here. If this is your work then delete this line.
 * CVS: Reviewed by:
 * CVS:   If we are doing pre-commit code reviews and someone else has
 * CVS:   reviewed your changes, include their name(s) here.
 * CVS:   If you have not had it reviewed then delete this line.
 *
 * Revision 1.5  2006/06/19 06:47:27  mranga
 * javadoc fixups
 *
 * Revision 1.4  2006/06/16 15:26:28  mranga
 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
 *
 * Revision 1.3  2006/05/22 08:16:15  mranga
 * Added tests for retransmissionAlert flag
 * Added tests for transaction terminated event
 *
 * Revision 1.2  2006/04/17 17:45:01  jeroen
 * - Using SIPRequest method to canonicalize request name (current code was omitting some)
 *
 * Revision 1.1.1.1  2005/10/04 17:12:35  mranga
 *
 * Import
 *
 *
 * Revision 1.7  2005/04/27 14:12:04  mranga
 * Submitted by:  Mario Mantak
 * Reviewed by:   mranga
 *
 * Added a missing "short form" for event header.
 *
 * Revision 1.6  2005/04/21 00:01:59  mranga
 * Issue number:
 * Obtained from:
 * Submitted by:  mranga
 * Reviewed by:  mranga
 *
 * Adjust remote sequence number when sending out a 491
 * CVS: ----------------------------------------------------------------------
 * CVS: Issue number:
 * CVS:   If this change addresses one or more issues,
 * CVS:   then enter the issue number(s) here.
 * CVS: Obtained from:
 * CVS:   If this change has been taken from another system,
 * CVS:   then name the system in this line, otherwise delete it.
 * CVS: Submitted by:
 * CVS:   If this code has been contributed to the project by someone else; i.e.,
 * CVS:   they sent us a patch or a set of diffs, then include their name/email
 * CVS:   address here. If this is your work then delete this line.
 * CVS: Reviewed by:
 * CVS:   If we are doing pre-commit code reviews and someone else has
 * CVS:   reviewed your changes, include their name(s) here.
 * CVS:   If you have not had it reviewed then delete this line.
 * Revision 1.5 2004/07/28 14:13:54 mranga Submitted
 * by: mranga
 * 
 * Move out the test code to a separate test/unit class. Fixed some encode
 * methods.
 * 
 * Revision 1.4 2004/01/22 13:26:31 sverker Issue number: Obtained from:
 * Submitted by: sverker Reviewed by: mranga
 * 
 * Major reformat of code to conform with style guide. Resolved compiler and
 * javadoc warnings. Added CVS tags.
 * 
 * CVS: ----------------------------------------------------------------------
 * CVS: Issue number: CVS: If this change addresses one or more issues, CVS:
 * then enter the issue number(s) here. CVS: Obtained from: CVS: If this change
 * has been taken from another system, CVS: then name the system in this line,
 * otherwise delete it. CVS: Submitted by: CVS: If this code has been
 * contributed to the project by someone else; i.e., CVS: they sent us a patch
 * or a set of diffs, then include their name/email CVS: address here. If this
 * is your work then delete this line. CVS: Reviewed by: CVS: If we are doing
 * pre-commit code reviews and someone else has CVS: reviewed your changes,
 * include their name(s) here. CVS: If you have not had it reviewed then delete
 * this line.
 *  
 */