package net.sf.saxon.value;
import net.sf.saxon.expr.XPathContext;
import net.sf.saxon.om.FastStringBuffer;
import net.sf.saxon.om.StandardNames;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.type.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Implementation of the xs:gYear data type
*/
public class GYearValue extends GDateValue {
private static Pattern regex =
Pattern.compile("(-?[0-9]+)(Z|[+-][0-9][0-9]:[0-9][0-9])?");
private GYearValue(){}
public static ConversionResult makeGYearValue(CharSequence value) {
GYearValue g = new GYearValue();
Matcher m = regex.matcher(Whitespace.trimWhitespace(value));
if (!m.matches()) {
return new ValidationFailure("Cannot convert '" + value + "' to a gYear");
}
String base = m.group(1);
String tz = m.group(2);
String date = base + "-01-01" + (tz==null ? "" : tz);
g.typeLabel = BuiltInAtomicType.G_YEAR;
return setLexicalValue(g, date);
}
public GYearValue(int year, int tz) {
this(year, tz, BuiltInAtomicType.G_YEAR);
}
public GYearValue(int year, int tz, AtomicType type) {
this.year = year;
this.month = 1;
this.day = 1;
setTimezoneInMinutes(tz);
this.typeLabel = type;
}
/**
* Make a copy of this date, time, or dateTime value
* @param typeLabel
*/
public AtomicValue copyAsSubType(AtomicType typeLabel) {
GYearValue v = new GYearValue(year, getTimezoneInMinutes());
v.typeLabel = typeLabel;
return v;
}
/**
* Determine the primitive type of the value. This delivers the same answer as
* getItemType().getPrimitiveItemType(). The primitive types are
* the 19 primitive types of XML Schema, plus xs:integer, xs:dayTimeDuration and xs:yearMonthDuration,
* and xs:untypedAtomic. For external objects, the result is AnyAtomicType.
*/
public BuiltInAtomicType getPrimitiveType() {
return BuiltInAtomicType.G_YEAR;
}
/**
* Convert to target data type
* @param requiredType an integer identifying the required atomic type
* @param context
* @return an AtomicValue, a value of the required type; or an ErrorValue
*/
public ConversionResult convertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context) {
switch(requiredType.getPrimitiveType()) {
case StandardNames.XS_G_YEAR:
case StandardNames.XS_ANY_ATOMIC_TYPE:
return this;
case StandardNames.XS_STRING:
return new StringValue(getStringValueCS());
case StandardNames.XS_UNTYPED_ATOMIC:
return new UntypedAtomicValue(getStringValueCS());
default:
ValidationFailure err = new ValidationFailure("Cannot convert gYear to " +
requiredType.getDisplayName());
err.setErrorCode("XPTY0004");
return err;
}
}
public CharSequence getPrimitiveStringValue() {
FastStringBuffer sb = new FastStringBuffer(FastStringBuffer.TINY);
int yr = year;
if (year <= 0) {
sb.append('-');
yr = -yr +1; // no year zero in lexical space
}
appendString(sb, yr, (yr>9999 ? (yr+"").length() : 4));
if (hasTimezone()) {
appendTimezone(sb);
}
return sb;
}
/**
* Add a duration to this date/time value
*
* @param duration the duration to be added (which might be negative)
* @return a new date/time value representing the result of adding the duration. The original
* object is not modified.
* @throws net.sf.saxon.trans.XPathException
*
*/
public CalendarValue add(DurationValue duration) throws XPathException {
XPathException err = new XPathException("Cannot add a duration to an xs:gYear");
err.setErrorCode("XPTY0004");
throw err;
}
/**
* Return a new date, time, or dateTime with the same normalized value, but
* in a different timezone
*
* @param tz the new timezone, in minutes
* @return the date/time in the new timezone
*/
public CalendarValue adjustTimezone(int tz) {
DateTimeValue dt = (DateTimeValue)toDateTime().adjustTimezone(tz);
return new GYearValue(dt.getYear(), dt.getTimezoneInMinutes());
}
}
//
// The contents of this file are subject to the Mozilla Public License Version 1.0 (the "License");
// you may not use this file except in compliance with the License. You may obtain a copy of the
// License at http://www.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is Saxonica Limited
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
// Contributor(s): none
//