package client.net.sf.saxon.ce.value;
import client.net.sf.saxon.ce.tree.util.FastStringBuffer;
import client.net.sf.saxon.ce.om.StandardNames;
import client.net.sf.saxon.ce.trans.XPathException;
import client.net.sf.saxon.ce.type.*;
import com.google.gwt.regexp.shared.MatchResult;
import com.google.gwt.regexp.shared.RegExp;
/**
* Implementation of the xs:gMonth data type
*/
public class GMonthValue extends GDateValue {
private static RegExp regex =
//Pattern.compile("--([0-9][0-9])(--)?(Z|[+-][0-9][0-9]:[0-9][0-9])?");
RegExp.compile("--([0-9][0-9])(Z|[+-][0-9][0-9]:[0-9][0-9])?");
// The commented-out pattern tolerates the bogus format --MM-- which was wrongly permitted by the original schema spec
private GMonthValue(){}
public static ConversionResult makeGMonthValue(CharSequence value) {
GMonthValue g = new GMonthValue();
MatchResult m = regex.exec(Whitespace.trimWhitespace(value).toString());
if (m == null) {
return new ValidationFailure("Cannot convert '" + value + "' to a gMonth");
}
String base = m.getGroup(1);
String tz = m.getGroup(2);
String date = "2000-" + (base==null ? "" : base) + "-01" + (tz==null ? "" : tz);
g.typeLabel = BuiltInAtomicType.G_MONTH;
return setLexicalValue(g, date);
}
public GMonthValue(int month, int tz) {
this(month, tz, BuiltInAtomicType.G_MONTH);
}
public GMonthValue(int month, int tz, AtomicType type) {
this.year = 2000;
this.month = month;
this.day = 1;
setTimezoneInMinutes(tz);
this.typeLabel = type;
}
/**
* Make a copy of this date, time, or dateTime value
*/
public AtomicValue copy() {
GMonthValue v = new GMonthValue(month, 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_MONTH;
}
/**
* Convert to target data type
* @param requiredType an integer identifying the required atomic type
* @return an AtomicValue, a value of the required type; or an ErrorValue
*/
public ConversionResult convertPrimitive(BuiltInAtomicType requiredType, boolean validate) {
switch(requiredType.getPrimitiveType()) {
case StandardNames.XS_G_MONTH:
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 gMonth to " +
requiredType.getDisplayName());
err.setErrorCode("XPTY0004");
return err;
}
}
public CharSequence getPrimitiveStringValue() {
FastStringBuffer sb = new FastStringBuffer(FastStringBuffer.TINY);
sb.append("--");
appendTwoDigits(sb, month);
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 client.net.sf.saxon.ce.trans.XPathException
*
*/
public CalendarValue add(DurationValue duration) throws XPathException {
XPathException err = new XPathException("Cannot add a duration to an xs:gMonth");
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 GMonthValue(dt.getMonth(), dt.getTimezoneInMinutes());
}
}
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is “Incompatible With Secondary Licenses”, as defined by the Mozilla Public License, v. 2.0.