xref: /external/nist-sip/java/gov/nist/javax/sip/parser/StatusLineParser.java

/*
* 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 java.text.ParseException;

/**
 * Parser for the SIP status line.
 *
 * @version 1.2 $Revision: 1.7 $ $Date: 2009/07/17 18:58:05 $
 *
 * @author M. Ranganathan   <br/>
 *
 *
 *
 */
public class StatusLineParser extends Parser {
    public StatusLineParser(String statusLine) {
        this.lexer = new Lexer("status_lineLexer", statusLine);
    }

    public StatusLineParser(Lexer lexer) {
        this.lexer = lexer;
        this.lexer.selectLexer("status_lineLexer");
    }

    protected int statusCode() throws ParseException {
        String scode = this.lexer.number();
        if (debug)
            dbg_enter("statusCode");
        try {
            int retval = Integer.parseInt(scode);
            return retval;
        } catch (NumberFormatException ex) {
            throw new ParseException(
                lexer.getBuffer() + ":" + ex.getMessage(),
                lexer.getPtr());
        } finally {
            if (debug)
                dbg_leave("statusCode");
        }

    }

    protected String reasonPhrase() throws ParseException {
        return this.lexer.getRest().trim();
    }

    public StatusLine parse() throws ParseException {
        try {
            if (debug)
                dbg_enter("parse");
            StatusLine retval = new StatusLine();
            String version = this.sipVersion();
            retval.setSipVersion(version);
            lexer.SPorHT();
            int scode = statusCode();
            retval.setStatusCode(scode);
            lexer.SPorHT();
            String rp = reasonPhrase();
            retval.setReasonPhrase(rp);
            lexer.SPorHT();
            return retval;
        } finally {
            if (debug)
                dbg_leave("parse");
        }
    }

    /**
        public static void main(String[] args)  throws ParseException {
            String[] statusLines = {
             "SIP/2.0 200 OK\n",
             "BOO 200 OK\n",
             "SIP/2.0 500 OK bad things happened \n"
            };
            for (int i = 0 ; i < statusLines.length; i++) {
               try {
               StatusLineParser slp = new StatusLineParser(statusLines[i]);
               StatusLine sl = slp.parse();
               System.out.println("encoded = " + sl.encode());
               } catch (ParseException ex) {
                System.out.println("error message " + ex.getMessage());
               }
            }
        }
    */
}
/*
 * $Log: StatusLineParser.java,v $
 * Revision 1.7  2009/07/17 18:58:05  emcho
 * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
 *
 * Revision 1.6  2006/07/13 09:02:20  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 1.3  2006/06/19 06:47:27  mranga
 * javadoc fixups
 *
 * Revision 1.2  2006/06/16 15:26:28  mranga
 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
 *
 * Revision 1.1.1.1  2005/10/04 17:12:36  mranga
 *
 * Import
 *
 *
 * Revision 1.4  2004/01/22 13:26:32  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.
 *
 */