src/org/apache/xerces/impl/dv/xs_new/MonthDayDV.java

/*
 * The Apache Software License, Version 1.1
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 * reserved.
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 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *       "This product includes software developed by the
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 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 2001, International
 * Business Machines, Inc., http://www.apache.org.  For more
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package org.apache.xerces.impl.dv.xs_new;

import org.apache.xerces.impl.dv.InvalidDatatypeValueException;
import org.apache.xerces.impl.validation.ValidationContext;

/**
 * Validator for <gMonthDay> datatype (W3C Schema Datatypes)
 *
 * @author Elena Litani
 * @author Gopal Sharma, SUN Microsystem Inc.
 *
 * @version $Id$
 */

public class MonthDayDV extends AbstractDateTimeDV {

    //size without time zone: --MM-DD
    private final static int MONTHDAY_SIZE = 7;

    /**
     * Convert a string to a compiled form
     *
     * @param  content The lexical representation of gMonthDay
     * @return a valid and normalized gMonthDay object
     */
    public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
        try{
            return parse(content, null);
        } catch(Exception ex){
            throw new InvalidDatatypeValueException("not a valid monthDay");
        }
    }

    /**
     * Parses, validates and computes normalized version of gMonthDay object
     *
     * @param str    The lexical representation of gMonthDay object --MM-DD
     *               with possible time zone Z or (-),(+)hh:mm
     * @param date   uninitialized date object
     * @return normalized date representation
     * @exception Exception Invalid lexical representation
     */
    protected int[] parse(String str, int[] date) throws SchemaDateTimeException{

        resetBuffer(str);

        //create structure to hold an object
        if ( date== null ) {
            date=new int[TOTAL_SIZE];
        }
        resetDateObj(date);

        //initialize
        date[CY]=YEAR;

        if (fBuffer.charAt(0)!='-' || fBuffer.charAt(1)!='-') {
            throw new SchemaDateTimeException("Invalid format for gMonthDay: "+str);
        }
        date[M]=parseInt(fStart+2,fStart+4);
        fStart+=4;

        if (fBuffer.charAt(fStart++)!='-') {
            throw new SchemaDateTimeException("Invalid format for gMonthDay: " + str);
        }

        date[D]=parseInt(fStart, fStart+2);

        if ( MONTHDAY_SIZE<fEnd ) {
            int sign = findUTCSign(MONTHDAY_SIZE, fEnd);
            if ( sign<0 ) {
                throw new SchemaDateTimeException ("Error in month parsing:" +str);
            }
            else {
                getTimeZone(date, sign);
            }
        }
        //validate and normalize

        validateDateTime(date);

        if ( date[utc]!=0 && date[utc]!='Z' ) {
            normalize(date);
        }
        return date;
    }

    /**
     * Converts gMonthDay object representation to String
     *
     * @param date   gmonthDay object
     * @return lexical representation of month: --MM-DD with an optional time zone sign
     */
    protected String dateToString(int[] date) {
        message.setLength(0);
        message.append('-');
        message.append('-');
        message.append(date[M]);
        message.append('-');
        message.append(date[D]);
        message.append((char)date[utc]);
        return message.toString();
    }

}