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/*******************************************************************************
* Copyright (c) 2005, 2010 Andrea Bittau, University College London, and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Andrea Bittau - initial API and implementation from the PsychoPath XPath 2.0
* David Carver (STAR) - bug 262765 - Fix parsing of gMonthDay to valid date
* David Carver (STAR) - bug 282223 - fix timezone adjustment creation.
* fixed casting issue.
* David Carver - bug 280547 - fix dates for comparison
* Mukul Gandhi - bug 280798 - PsychoPath support for JDK 1.4
*******************************************************************************/
package org.eclipse.wst.xml.xpath2.processor.internal.types;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.TimeZone;
import org.eclipse.wst.xml.xpath2.api.DynamicContext;
import org.eclipse.wst.xml.xpath2.api.ResultBuffer;
import org.eclipse.wst.xml.xpath2.api.ResultSequence;
import org.eclipse.wst.xml.xpath2.api.typesystem.TypeDefinition;
import org.eclipse.wst.xml.xpath2.processor.DynamicError;
import org.eclipse.wst.xml.xpath2.processor.internal.function.CmpEq;
import org.eclipse.wst.xml.xpath2.processor.internal.types.builtin.BuiltinTypeLibrary;
/**
* A representation of the MonthDay datatype
*/
public class XSGMonthDay extends CalendarType implements CmpEq {
private static final String XS_G_MONTH_DAY = "xs:gMonthDay";
private Calendar _calendar;
private boolean _timezoned;
private XSDuration _tz;
/**
* Initialises a representation of the supplied month and day
*
* @param cal
* Calendar representation of the month and day to be stored
* @param tz
* Timezone associated with this month and day
*/
public XSGMonthDay(Calendar cal, XSDuration tz) {
_calendar = cal;
if (tz != null) {
_timezoned = true;
_tz = tz;
}
}
/**
* Initialises a representation of the current month and day
*/
public XSGMonthDay() {
this(new GregorianCalendar(TimeZone.getTimeZone("GMT")), null);
}
/**
* Retrieves the datatype's name
*
* @return "gMonthDay" which is the datatype's name
*/
public String type_name() {
return "gMonthDay";
}
/**
* Parses a String representation of a month and day and constructs a new
* XSGMonthDay representation of it.
*
* @param str
* The String representation of the month and day (and optional
* timezone)
* @return The XSGMonthDay representation of the supplied date
*/
public static XSGMonthDay parse_gMonthDay(String str) {
String startdate = "1972-";
String starttime = "T00:00:00";
int index = str.lastIndexOf('+', str.length());
if (index == -1)
index = str.lastIndexOf('-');
if (index == -1)
index = str.lastIndexOf('Z', str.length());
if (index != -1) {
int zIndex = str.lastIndexOf('Z', str.length());
if (zIndex == -1) {
if (index > 5)
zIndex = index;
}
if (zIndex == -1) {
zIndex = str.lastIndexOf('+');
}
String[] split = str.split("-");
startdate += split[2].replaceAll("Z", "") + "-" + split[3].replaceAll("Z", "").substring(0, 2);
if (split.length > 4) {
String[] timesplit = split[4].split(":");
if (timesplit.length < 3) {
starttime = "T";
StringBuffer buf = new StringBuffer(starttime);
for (int cnt = 0; cnt < timesplit.length; cnt++) {
buf.append(timesplit[cnt] + ":");
}
buf.append("00");
starttime = buf.toString();
} else {
starttime += timesplit[0] + ":" + timesplit[1] + ":" + timesplit[2];
}
}
startdate = startdate.trim();
startdate += starttime;
if (zIndex != -1) {
startdate += str.substring(zIndex);
}
} else {
startdate += starttime;
}
XSDateTime dt = XSDateTime.parseDateTime(startdate);
if (dt == null)
return null;
return new XSGMonthDay(dt.calendar(), dt.tz());
}
/**
* Creates a new ResultSequence consisting of the extractable gMonthDay in
* the supplied ResultSequence
*
* @param arg
* The ResultSequence from which the gMonthDay is to be extracted
* @return New ResultSequence consisting of the supplied month and day
* @throws DynamicError
*/
public ResultSequence constructor(ResultSequence arg) throws DynamicError {
if (arg.empty())
return ResultBuffer.EMPTY;
AnyAtomicType aat = (AnyAtomicType) arg.first();
if (aat instanceof NumericType || aat instanceof XSDuration ||
aat instanceof XSTime || isGDataType(aat) ||
aat instanceof XSBoolean || aat instanceof XSBase64Binary ||
aat instanceof XSHexBinary || aat instanceof XSAnyURI) {
throw DynamicError.invalidType();
}
if (!isCastable(aat)) {
throw DynamicError.cant_cast(null);
}
XSGMonthDay val = castGMonthDay(aat);
if (val == null)
throw DynamicError.cant_cast(null);
return val;
}
protected boolean isGDataType(AnyAtomicType aat) {
String type = aat.string_type();
if (type.equals("xs:gDay") ||
type.equals("xs:gMonth") ||
type.equals("xs:gYear") ||
type.equals("xs:gYearMonth")) {
return true;
}
return false;
}
private boolean isCastable(AnyAtomicType aat) {
if (aat instanceof XSString || aat instanceof XSUntypedAtomic) {
return true;
}
if (aat instanceof XSTime) {
return false;
}
if (aat instanceof XSDate || aat instanceof XSDateTime ||
aat instanceof XSGMonthDay) {
return true;
}
return false;
}
private XSGMonthDay castGMonthDay(AnyAtomicType aat) {
if (aat instanceof XSGMonthDay) {
XSGMonthDay gmd = (XSGMonthDay) aat;
return new XSGMonthDay(gmd.calendar(), gmd.tz());
}
if (aat instanceof XSDate) {
XSDate date = (XSDate) aat;
return new XSGMonthDay(date.calendar(), date.tz());
}
if (aat instanceof XSDateTime) {
XSDateTime dateTime = (XSDateTime) aat;
return new XSGMonthDay(dateTime.calendar(), dateTime.tz());
}
return parse_gMonthDay(aat.getStringValue());
}
/**
* Retrieves the actual month as an integer
*
* @return The actual month as an integer
*/
public int month() {
return _calendar.get(Calendar.MONTH) + 1;
}
/**
* Retrieves the actual day as an integer
*
* @return The actual day as an integer
*/
public int day() {
return _calendar.get(Calendar.DAY_OF_MONTH);
}
/**
* Check for whether a timezone was specified at creation
*
* @return True if a timezone was specified. False otherwise
*/
public boolean timezoned() {
return _timezoned;
}
/**
* Retrieves a String representation of the stored month and day
*
* @return String representation of the stored month and day
*/
public String getStringValue() {
String ret = "--";
Calendar adjustFortimezone = calendar();
ret += XSDateTime.pad_int(month(), 2);
ret += "-";
ret += XSDateTime.pad_int(adjustFortimezone.get(Calendar.DAY_OF_MONTH), 2);
if (timezoned()) {
int hrs = tz().hours();
int min = tz().minutes();
double secs = tz().seconds();
if (hrs == 0 && min == 0 && secs == 0) {
ret += "Z";
}
else {
String tZoneStr = "";
if (tz().negative()) {
tZoneStr += "-";
}
else {
tZoneStr += "+";
}
tZoneStr += XSDateTime.pad_int(hrs, 2);
tZoneStr += ":";
tZoneStr += XSDateTime.pad_int(min, 2);
ret += tZoneStr;
}
}
return ret;
}
/**
* Retrieves the datatype's full pathname
*
* @return "xs:gMonthDay" which is the datatype's full pathname
*/
public String string_type() {
return XS_G_MONTH_DAY;
}
/**
* Retrieves the Calendar representation of the month and day stored
*
* @return Calendar representation of the month and day stored
*/
public Calendar calendar() {
return _calendar;
}
/**
* Equality comparison between this and the supplied representation. This
* representation must be of type XSGMonthDay
*
* @param arg
* The XSGMonthDay to compare with
* @return True if the two representations are of the same month and day.
* False otherwise
* @throws DynamicError
*/
public boolean eq(AnyType arg, DynamicContext dynamicContext) throws DynamicError {
XSGMonthDay val = (XSGMonthDay) NumericType.get_single_type(arg,
XSGMonthDay.class);
return calendar().equals(val.calendar());
}
/**
* Retrieves the timezone associated with the date stored
*
* @return the timezone associated with the date stored
*/
public XSDuration tz() {
return _tz;
}
public TypeDefinition getTypeDefinition() {
return BuiltinTypeLibrary.XS_GMONTHDAY;
}
}