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/*
* 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
*  
* .
* 
*/
/*******************************************
 * PRODUCT OF PT INOVACAO - EST DEPARTMENT *
 *******************************************/

package gov.nist.javax.sip.parser.ims;

import gov.nist.core.NameValue;
import gov.nist.javax.sip.header.SIPHeader;
import gov.nist.javax.sip.header.ims.PChargingVector;
import gov.nist.javax.sip.header.ims.ParameterNamesIms;
import gov.nist.javax.sip.parser.Lexer;
import gov.nist.javax.sip.parser.ParametersParser;
import gov.nist.javax.sip.parser.TokenTypes;

import java.text.ParseException;

/**
 * P-Charging-Vector header parser.
 * 
 * @author ALEXANDRE MIGUEL SILVA SANTOS 
 */

public class PChargingVectorParser 
extends ParametersParser implements TokenTypes {
	
	public PChargingVectorParser(String chargingVector) {
		
		super(chargingVector);
	
	}
	
	protected PChargingVectorParser(Lexer lexer) {
		
		super(lexer);
		
	}
	
	
	
	public SIPHeader parse() throws ParseException {
		
		
		if (debug)
			dbg_enter("parse");
		try {
			headerName(TokenTypes.P_VECTOR_CHARGING);
			PChargingVector chargingVector = new PChargingVector();
			
			try {
				while (lexer.lookAhead(0) != '\n') {
					this.parseParameter(chargingVector);
					this.lexer.SPorHT();
					char la = lexer.lookAhead(0);
					if (la == '\n' || la == '\0')
						break;
					this.lexer.match(';');
					this.lexer.SPorHT();
				}
				
			} catch (ParseException ex) {
				throw ex;
			}
			
			
			super.parse(chargingVector);
			if ( chargingVector.getParameter(ParameterNamesIms.ICID_VALUE) == null ) 
				throw new ParseException("Missing a required Parameter : " + ParameterNamesIms.ICID_VALUE, 0);
			return chargingVector;
		} finally {
			if (debug)
				dbg_leave("parse");
		}
	}
	
	protected void parseParameter(PChargingVector chargingVector) throws ParseException {
		
		if (debug)
			dbg_enter("parseParameter");
		try {
			NameValue nv = this.nameValue('=');
			chargingVector.setParameter(nv);
		} finally {
			if (debug)
				dbg_leave("parseParameter");
		}
		
		
		
	}
	
	

}