207 lines
7.0 KiB
Java
207 lines
7.0 KiB
Java
/*
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* Conditions Of Use
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*
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* This software was developed by employees of the National Institute of
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* Standards and Technology (NIST), an agency of the Federal Government.
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* Pursuant to title 15 Untied States Code Section 105, works of NIST
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* employees are not subject to copyright protection in the United States
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* and are considered to be in the public domain. As a result, a formal
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* license is not needed to use the software.
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*
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* This software is provided by NIST as a service and is expressly
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* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
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* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
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* AND DATA ACCURACY. NIST does not warrant or make any representations
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* regarding the use of the software or the results thereof, including but
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* not limited to the correctness, accuracy, reliability or usefulness of
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* the software.
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*
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* Permission to use this software is contingent upon your acceptance
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* of the terms of this agreement
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*
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* .
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*
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*/
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/*
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* AcceptLanguageParser.java
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*
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* Created on June 10, 2002, 3:31 PM
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*/
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package gov.nist.javax.sip.parser;
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import gov.nist.core.*;
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import gov.nist.javax.sip.header.*;
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import javax.sip.*;
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import java.text.ParseException;
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/**
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* Parser for Accept Language Headers.
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*
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* Accept Language body.
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* <pre>
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*
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* Accept-Language = "Accept-Language" ":"
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* 1#( language-range [ ";" "q" "=" qvalue ] )
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* language-range = ( ( 1*8ALPHA *( "-" 1*8ALPHA ) ) | "*" )
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*
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* HTTP RFC 2616 Section 14.4
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* </pre>
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*
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* Accept-Language: da, en-gb;q=0.8, en;q=0.7
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*
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* @see AcceptLanguageList
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* @version 1.2 $Revision: 1.8 $ $Date: 2009/07/17 18:57:56 $
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*
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* @author Olivier Deruelle
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*
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*/
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public class AcceptLanguageParser extends HeaderParser {
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/**
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* Constructor
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* @param acceptLanguage AcceptLanguage message to parse
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*/
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public AcceptLanguageParser(String acceptLanguage) {
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super(acceptLanguage);
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}
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/**
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* Constructor
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* @param lexer Lexer to set
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*/
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protected AcceptLanguageParser(Lexer lexer) {
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super(lexer);
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}
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/**
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* parse the String message
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* @return SIPHeader (AcceptLanguage object)
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* @throws ParseException if the message does not respect the spec.
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*/
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public SIPHeader parse() throws ParseException {
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AcceptLanguageList acceptLanguageList = new AcceptLanguageList();
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if (debug)
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dbg_enter("AcceptLanguageParser.parse");
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try {
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headerName(TokenTypes.ACCEPT_LANGUAGE);
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while (lexer.lookAhead(0) != '\n') {
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AcceptLanguage acceptLanguage = new AcceptLanguage();
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acceptLanguage.setHeaderName(SIPHeaderNames.ACCEPT_LANGUAGE);
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if (lexer.lookAhead(0) != ';') {
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// Content-Coding:
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lexer.match(TokenTypes.ID);
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Token value = lexer.getNextToken();
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acceptLanguage.setLanguageRange(value.getTokenValue());
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}
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while (lexer.lookAhead(0) == ';') {
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this.lexer.match(';');
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this.lexer.SPorHT();
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this.lexer.match('q');
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this.lexer.SPorHT();
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this.lexer.match('=');
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this.lexer.SPorHT();
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lexer.match(TokenTypes.ID);
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Token value = lexer.getNextToken();
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try {
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float fl = Float.parseFloat(value.getTokenValue());
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acceptLanguage.setQValue(fl);
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} catch (NumberFormatException ex) {
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throw createParseException(ex.getMessage());
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} catch (InvalidArgumentException ex) {
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throw createParseException(ex.getMessage());
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}
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this.lexer.SPorHT();
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}
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acceptLanguageList.add(acceptLanguage);
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if (lexer.lookAhead(0) == ',') {
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this.lexer.match(',');
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this.lexer.SPorHT();
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} else
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this.lexer.SPorHT();
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}
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} finally {
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if (debug)
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dbg_leave("AcceptLanguageParser.parse");
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}
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return acceptLanguageList;
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}
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}
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/*
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* $Log: AcceptLanguageParser.java,v $
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* Revision 1.8 2009/07/17 18:57:56 emcho
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* Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
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*
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* Revision 1.7 2006/07/13 09:02:11 mranga
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* Issue number:
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* Obtained from:
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* Submitted by: jeroen van bemmel
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* Reviewed by: mranga
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* Moved some changes from jain-sip-1.2 to java.net
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*
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* CVS: ----------------------------------------------------------------------
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* CVS: Issue number:
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* CVS: If this change addresses one or more issues,
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* CVS: then enter the issue number(s) here.
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* CVS: Obtained from:
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* CVS: If this change has been taken from another system,
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* CVS: then name the system in this line, otherwise delete it.
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* CVS: Submitted by:
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* CVS: If this code has been contributed to the project by someone else; i.e.,
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* CVS: they sent us a patch or a set of diffs, then include their name/email
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* CVS: address here. If this is your work then delete this line.
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* CVS: Reviewed by:
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* CVS: If we are doing pre-commit code reviews and someone else has
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* CVS: reviewed your changes, include their name(s) here.
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* CVS: If you have not had it reviewed then delete this line.
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*
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* Revision 1.3 2006/06/19 06:47:27 mranga
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* javadoc fixups
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*
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* Revision 1.2 2006/06/16 15:26:28 mranga
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* Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
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*
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* Revision 1.1.1.1 2005/10/04 17:12:35 mranga
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*
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* Import
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*
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*
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* Revision 1.5 2004/07/28 14:13:54 mranga
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* Submitted by: mranga
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*
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* Move out the test code to a separate test/unit class.
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* Fixed some encode methods.
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*
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* Revision 1.4 2004/01/22 13:26:31 sverker
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* Issue number:
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* Obtained from:
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* Submitted by: sverker
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* Reviewed by: mranga
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*
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* Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
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*
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* CVS: ----------------------------------------------------------------------
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* CVS: Issue number:
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* CVS: If this change addresses one or more issues,
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* CVS: then enter the issue number(s) here.
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* CVS: Obtained from:
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* CVS: If this change has been taken from another system,
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* CVS: then name the system in this line, otherwise delete it.
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* CVS: Submitted by:
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* CVS: If this code has been contributed to the project by someone else; i.e.,
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* CVS: they sent us a patch or a set of diffs, then include their name/email
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* CVS: address here. If this is your work then delete this line.
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* CVS: Reviewed by:
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* CVS: If we are doing pre-commit code reviews and someone else has
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* CVS: reviewed your changes, include their name(s) here.
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* CVS: If you have not had it reviewed then delete this line.
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*
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*/
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