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package com.sun.org.apache.xerces.internal.impl.dv.xs;

import javax.xml.datatype.DatatypeConstants;
import javax.xml.datatype.XMLGregorianCalendar;

import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;

Validator for  datatype (W3C Schema datatypes)
Author:
Elena Litani, Gopal Sharma, SUN Microsystems Inc.
@xerces.internal
/**
 * Validator for <date> datatype (W3C Schema datatypes)
 *
 * @xerces.internal
 *
 * @author Elena Litani
 * @author Gopal Sharma, SUN Microsystems Inc.
 *
 */
public class DateDV extends DateTimeDV {

    public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
        try{
            return parse(content);
        } catch(Exception ex){
            throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "date"});
        }
    }

    
Parses, validates and computes normalized version of dateTime object
Params:
str –    The lexical representation of dateTime object CCYY-MM-DD
              with possible time zone Z or (-),(+)hh:mm
Throws:
SchemaDateTimeException – Invalid lexical representation
Returns:
normalized dateTime representation/**
     * Parses, validates and computes normalized version of dateTime object
     *
     * @param str    The lexical representation of dateTime object CCYY-MM-DD
     *               with possible time zone Z or (-),(+)hh:mm
     * @return normalized dateTime representation
     * @exception SchemaDateTimeException Invalid lexical representation
     */
    protected DateTimeData parse(String str) throws SchemaDateTimeException {
        DateTimeData date = new DateTimeData(str, this);
        int len = str.length();

        int end = getDate(str, 0, len, date);
        parseTimeZone (str, end, len, date);

        //validate and normalize
        //REVISIT: do we need SchemaDateTimeException?
        validateDateTime(date);

        //save unnormalized values
        saveUnnormalized(date);

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

    protected String dateToString(DateTimeData date) {
        StringBuffer message = new StringBuffer(25);
        append(message, date.year, 4);
        message.append('-');
        append(message, date.month, 2);
        message.append('-');
        append(message, date.day, 2);
        append(message, (char)date.utc, 0);
        return message.toString();
    }

    protected XMLGregorianCalendar getXMLGregorianCalendar(DateTimeData date) {
        return datatypeFactory.newXMLGregorianCalendar(date.unNormYear, date.unNormMonth,
                date.unNormDay, DatatypeConstants.FIELD_UNDEFINED, DatatypeConstants.FIELD_UNDEFINED,
                DatatypeConstants.FIELD_UNDEFINED, DatatypeConstants.FIELD_UNDEFINED,
                date.hasTimeZone() ? (date.timezoneHr * 60 + date.timezoneMin) : DatatypeConstants.FIELD_UNDEFINED);
    }

}