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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 gov.nist.core.*;
     30 import java.text.ParseException;
     31 
     32 /**
     33  * Parser for ContentLanguage header.
     34  *
     35  * @version 1.2 $Revision: 1.8 $ $Date: 2009/07/17 18:57:58 $
     36  *
     37  * @author Olivier Deruelle   <br/>
     38  * @author M. Ranganathan   <br/>
     39  *
     40  *
     41  *
     42  * @version 1.0
     43  */
     44 public class ContentEncodingParser extends HeaderParser {
     45 
     46     /**
     47      * Creates a new instance of ContentEncodingParser
     48      * @param contentEncoding the header to parse
     49      */
     50     public ContentEncodingParser(String contentEncoding) {
     51         super(contentEncoding);
     52     }
     53 
     54     /**
     55      * Constructor
     56      * @param lexer the lexer to use to parse the header
     57      */
     58     protected ContentEncodingParser(Lexer lexer) {
     59         super(lexer);
     60     }
     61 
     62     /**
     63      * parse the ContentEncodingHeader String header
     64      * @return SIPHeader (ContentEncodingList object)
     65      * @throws SIPParseException if the message does not respect the spec.
     66      */
     67     public SIPHeader parse() throws ParseException {
     68 
     69         if (debug)
     70             dbg_enter("ContentEncodingParser.parse");
     71         ContentEncodingList list = new ContentEncodingList();
     72 
     73         try {
     74             headerName(TokenTypes.CONTENT_ENCODING);
     75 
     76             while (lexer.lookAhead(0) != '\n') {
     77                 ContentEncoding cl = new ContentEncoding();
     78                 cl.setHeaderName(SIPHeaderNames.CONTENT_ENCODING);
     79 
     80                 this.lexer.SPorHT();
     81                 this.lexer.match(TokenTypes.ID);
     82 
     83                 Token token = lexer.getNextToken();
     84                 cl.setEncoding(token.getTokenValue());
     85 
     86                 this.lexer.SPorHT();
     87                 list.add(cl);
     88 
     89                 while (lexer.lookAhead(0) == ',') {
     90                     cl = new ContentEncoding();
     91                     this.lexer.match(',');
     92                     this.lexer.SPorHT();
     93                     this.lexer.match(TokenTypes.ID);
     94                     this.lexer.SPorHT();
     95                     token = lexer.getNextToken();
     96                     cl.setEncoding(token.getTokenValue());
     97                     this.lexer.SPorHT();
     98                     list.add(cl);
     99                 }
    100             }
    101 
    102             return list;
    103         } catch (ParseException ex) {
    104             throw createParseException(ex.getMessage());
    105         } finally {
    106             if (debug)
    107                 dbg_leave("ContentEncodingParser.parse");
    108         }
    109     }
    110 
    111 
    112 }
    113 /*
    114  * $Log: ContentEncodingParser.java,v $
    115  * Revision 1.8  2009/07/17 18:57:58  emcho
    116  * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
    117  *
    118  * Revision 1.7  2006/07/13 09:01:56  mranga
    119  * Issue number:
    120  * Obtained from:
    121  * Submitted by:  jeroen van bemmel
    122  * Reviewed by:   mranga
    123  * Moved some changes from jain-sip-1.2 to java.net
    124  *
    125  * CVS: ----------------------------------------------------------------------
    126  * CVS: Issue number:
    127  * CVS:   If this change addresses one or more issues,
    128  * CVS:   then enter the issue number(s) here.
    129  * CVS: Obtained from:
    130  * CVS:   If this change has been taken from another system,
    131  * CVS:   then name the system in this line, otherwise delete it.
    132  * CVS: Submitted by:
    133  * CVS:   If this code has been contributed to the project by someone else; i.e.,
    134  * CVS:   they sent us a patch or a set of diffs, then include their name/email
    135  * CVS:   address here. If this is your work then delete this line.
    136  * CVS: Reviewed by:
    137  * CVS:   If we are doing pre-commit code reviews and someone else has
    138  * CVS:   reviewed your changes, include their name(s) here.
    139  * CVS:   If you have not had it reviewed then delete this line.
    140  *
    141  * Revision 1.3  2006/06/19 06:47:27  mranga
    142  * javadoc fixups
    143  *
    144  * Revision 1.2  2006/06/16 15:26:28  mranga
    145  * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
    146  *
    147  * Revision 1.1.1.1  2005/10/04 17:12:35  mranga
    148  *
    149  * Import
    150  *
    151  *
    152  * Revision 1.5  2004/07/28 14:13:55  mranga
    153  * Submitted by:  mranga
    154  *
    155  * Move out the test code to a separate test/unit class.
    156  * Fixed some encode methods.
    157  *
    158  * Revision 1.4  2004/01/22 13:26:31  sverker
    159  * Issue number:
    160  * Obtained from:
    161  * Submitted by:  sverker
    162  * Reviewed by:   mranga
    163  *
    164  * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
    165  *
    166  * CVS: ----------------------------------------------------------------------
    167  * CVS: Issue number:
    168  * CVS:   If this change addresses one or more issues,
    169  * CVS:   then enter the issue number(s) here.
    170  * CVS: Obtained from:
    171  * CVS:   If this change has been taken from another system,
    172  * CVS:   then name the system in this line, otherwise delete it.
    173  * CVS: Submitted by:
    174  * CVS:   If this code has been contributed to the project by someone else; i.e.,
    175  * CVS:   they sent us a patch or a set of diffs, then include their name/email
    176  * CVS:   address here. If this is your work then delete this line.
    177  * CVS: Reviewed by:
    178  * CVS:   If we are doing pre-commit code reviews and someone else has
    179  * CVS:   reviewed your changes, include their name(s) here.
    180  * CVS:   If you have not had it reviewed then delete this line.
    181  *
    182  */
    183