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