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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 <gMonth> datatype (W3C Schema Datatypes)
*
* @xerces.internal
*
* @author Elena Litani
* @author Gopal Sharma, SUN Microsystem Inc.
*
* @version $Id: MonthDV.java,v 1.8 2010-11-01 04:39:47 joehw Exp $
*/
public class MonthDV extends AbstractDateTimeDV {
/**
* Convert a string to a compiled form
*
* @param content The lexical representation of gMonth
* @return a valid and normalized gMonth object
*/
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, "gMonth"});
}
}
/**
* Parses, validates and computes normalized version of gMonth object
*
* @param str The lexical representation of gMonth object --MM
* with possible time zone Z or (-),(+)hh:mm
* @return normalized date representation
* @exception SchemaDateTimeException Invalid lexical representation
*/
protected DateTimeData parse(String str) throws SchemaDateTimeException{
DateTimeData date = new DateTimeData(str, this);
int len = str.length();
//set constants
date.year=YEAR;
date.day=DAY;
if (str.charAt(0)!='-' || str.charAt(1)!='-') {
throw new SchemaDateTimeException("Invalid format for gMonth: "+str);
}
int stop = 4;
date.month=parseInt(str,2,stop);
// REVISIT: allow both --MM and --MM-- now.
// need to remove the following 4 lines to disallow --MM--
// when the errata is offically in the rec.
if (str.length() >= stop+2 &&
str.charAt(stop) == '-' && str.charAt(stop+1) == '-') {
stop += 2;
}
if (stop < len) {
if (!isNextCharUTCSign(str, stop, len)) {
throw new SchemaDateTimeException ("Error in month parsing: "+str);
}
else {
getTimeZone(str, date, stop, len);
}
}
//validate and normalize
validateDateTime(date);
//save unnormalized values
saveUnnormalized(date);
if ( date.utc!=0 && date.utc!='Z' ) {
normalize(date);
}
date.position = 1;
return date;
}
/**
* Overwrite compare algorithm to optimize month comparison
*
* REVISIT: this one is lack of the third parameter: boolean strict, so it
* doesn't override the method in the base. But maybe this method
* is not correctly implemented, and I did encounter errors when
* trying to add the extra parameter. I'm leaving it as is. -SG
*
* @param date1
* @param date2
* @return less, greater, equal, indeterminate
*/
/*protected short compareDates(DateTimeData date1, DateTimeData date2) {
if ( date1.utc==date2.utc ) {
return (short)((date1.month>=date2.month)?(date1.month>date2.month)?1:0:-1);
}
if ( date1.utc=='Z' || date2.utc=='Z' ) {
if ( date1.month==date2.month ) {
//--05--Z and --05--
return INDETERMINATE;
}
if ( (date1.month+1 == date2.month || date1.month-1 == date2.month) ) {
//--05--Z and (--04-- or --05--)
//REVISIT: should this case be less than or equal?
// maxExclusive should fail but what about maxInclusive
//
return INDETERMINATE;
}
}
if ( date1.month