/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
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*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* 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
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package com.sun.org.apache.xerces.internal.impl.dv.xs;
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)
*
* @author Elena Litani
* @author Gopal Sharma, SUN Microsystem Inc.
*
* @version $Id: MonthDV.java,v 1.9 2003/01/16 18:34:04 sandygao 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 new DateTimeData(parse(content), this);
} 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
* @param date uninitialized date object
* @return normalized date representation
* @exception SchemaDateTimeException Invalid lexical representation
*/
protected int[] parse(String str) throws SchemaDateTimeException{
int len = str.length();
int[] date=new int[TOTAL_SIZE];
int[] timeZone = new int[2];
//set constants
date[CY]=YEAR;
date[D]=DAY;
if (str.charAt(0)!='-' || str.charAt(1)!='-') {
throw new SchemaDateTimeException("Invalid format for gMonth: "+str);
}
int stop = 4;
date[M]=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) {
int sign = findUTCSign(str, stop, len);
if ( sign<0 ) {
throw new SchemaDateTimeException ("Error in month parsing: "+str);
}
else {
getTimeZone(str, date, sign, len, timeZone);
}
}
//validate and normalize
validateDateTime(date, timeZone);
if ( date[utc]!=0 && date[utc]!='Z' ) {
normalize(date, timeZone);
}
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(int[] date1, int[] date2) {
if ( date1[utc]==date2[utc] ) {
return (short)((date1[M]>=date2[M])?(date1[M]>date2[M])?1:0:-1);
}
if ( date1[utc]=='Z' || date2[utc]=='Z' ) {
if ( date1[M]==date2[M] ) {
//--05--Z and --05--
return INDETERMINATE;
}
if ( (date1[M]+1 == date2[M] || date1[M]-1 == date2[M]) ) {
//--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[M]<date2[M] ) {
return -1;
}
else {
return 1;
}
}
/**
* Converts month object representation to String
*
* @param date month object
* @return lexical representation of month: --MM with an optional time zone sign
*/
protected String dateToString(int[] date) {
StringBuffer message = new StringBuffer(5);
message.append('-');
message.append('-');
append(message, date[M], 2);
append(message, (char)date[utc], 0);
return message.toString();
}
}
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