| /******************************************************************************* |
| * Copyright (c) 2005, 2009 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 282223 - fixed casting issues. |
| * David Carver - bug 280547 - fix dates for comparison |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.xpath2.processor.internal.types; |
| |
| import org.eclipse.wst.xml.xpath2.processor.DynamicContext; |
| import org.eclipse.wst.xml.xpath2.processor.DynamicError; |
| import org.eclipse.wst.xml.xpath2.processor.ResultSequence; |
| import org.eclipse.wst.xml.xpath2.processor.ResultSequenceFactory; |
| import org.eclipse.wst.xml.xpath2.processor.internal.function.*; |
| |
| import java.util.*; |
| |
| /** |
| * A representation of the YearMonth datatype |
| */ |
| public class XSGYearMonth extends CalendarType implements CmpEq { |
| |
| private static final String XS_G_YEAR_MONTH = "xs:gYearMonth"; |
| private Calendar _calendar; |
| private boolean _timezoned; |
| private XSDuration _tz; |
| |
| |
| /** |
| * Initialises a representation of the supplied year and month |
| * |
| * @param cal |
| * Calendar representation of the year and month to be stored |
| * @param tz |
| * Timezone associated with this year and month |
| */ |
| public XSGYearMonth(Calendar cal, XSDuration tz) { |
| _calendar = cal; |
| if (tz != null) { |
| _timezoned = true; |
| _tz = tz; |
| } |
| } |
| |
| /** |
| * Initialises a representation of the current year and month |
| */ |
| public XSGYearMonth() { |
| this(new GregorianCalendar(TimeZone.getTimeZone("GMT")), null); |
| } |
| |
| /** |
| * Retrieves the datatype's name |
| * |
| * @return "gYearMonth" which is the datatype's name |
| */ |
| @Override |
| public String type_name() { |
| return "gYearMonth"; |
| } |
| |
| /** |
| * Parses a String representation of a year and month and constructs a new |
| * XSGYearMonth representation of it. |
| * |
| * @param str |
| * The String representation of the year and month (and optional |
| * timezone) |
| * @return The XSGYearMonth representation of the supplied date |
| */ |
| public static XSGYearMonth parse_gYearMonth(String str) { |
| |
| String yearMonth = ""; |
| String dayTime = "-01T00:00:00.0"; |
| |
| int index = str.indexOf('+', 1); |
| if (index == -1) { |
| index = str.indexOf('-', 1); |
| if (index == -1) |
| return null; |
| index = str.indexOf('-', index + 1); |
| } |
| if (index == -1) |
| index = str.indexOf('Z', 1); |
| if (index != -1) { |
| yearMonth = str.substring(0, index); |
| yearMonth += dayTime; |
| yearMonth += str.substring(index, str.length()); |
| } else { |
| yearMonth = str + dayTime; |
| } |
| |
| XSDateTime dt = XSDateTime.parseDateTime(yearMonth); |
| if (dt == null) |
| return null; |
| |
| return new XSGYearMonth(dt.calendar(), dt.tz()); |
| } |
| |
| /** |
| * Creates a new ResultSequence consisting of the extractable gYearMonth in |
| * the supplied ResultSequence |
| * |
| * @param arg |
| * The ResultSequence from which the gYearMonth is to be |
| * extracted |
| * @return New ResultSequence consisting of the supplied year and month |
| * @throws DynamicError |
| */ |
| @Override |
| public ResultSequence constructor(ResultSequence arg) throws DynamicError { |
| ResultSequence rs = ResultSequenceFactory.create_new(); |
| |
| if (arg.empty()) |
| return rs; |
| |
| 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); |
| } |
| |
| XSGYearMonth val = castGYearMonth(aat); |
| |
| if (val == null) |
| throw DynamicError.cant_cast(null); |
| |
| rs.add(val); |
| |
| return rs; |
| } |
| |
| protected boolean isGDataType(AnyAtomicType aat) { |
| String type = aat.string_type(); |
| if (type.equals("xs:gMonthDay") || |
| type.equals("xs:gDay") || |
| type.equals("xs:gMonth") || |
| type.equals("xs:gYear")) { |
| return true; |
| } |
| return false; |
| } |
| |
| private boolean isCastable(AnyAtomicType aat) { |
| |
| if (aat instanceof XSString || aat instanceof XSUntypedAtomic) { |
| return true; |
| } |
| |
| if (aat instanceof XSGYearMonth) { |
| return true; |
| } |
| |
| if (aat instanceof XSDate) { |
| return true; |
| } |
| |
| if (aat instanceof XSTime) { |
| return false; |
| } |
| |
| if (aat instanceof XSDateTime) { |
| return true; |
| } |
| |
| return false; |
| |
| } |
| |
| private XSGYearMonth castGYearMonth(AnyAtomicType aat) { |
| if (aat instanceof XSGYearMonth) { |
| XSGYearMonth gym = (XSGYearMonth) aat; |
| return new XSGYearMonth(gym.calendar(), gym.tz()); |
| } |
| |
| if (aat instanceof XSDate) { |
| XSDate date = (XSDate) aat; |
| return new XSGYearMonth(date.calendar(), date.tz()); |
| } |
| |
| if (aat instanceof XSDateTime) { |
| XSDateTime dateTime = (XSDateTime) aat; |
| return new XSGYearMonth(dateTime.calendar(), dateTime.tz()); |
| } |
| |
| return parse_gYearMonth(aat.string_value()); |
| } |
| |
| /** |
| * Retrieves the actual year as an integer |
| * |
| * @return The actual year as an integer |
| */ |
| public int year() { |
| int y = _calendar.get(Calendar.YEAR); |
| if (_calendar.get(Calendar.ERA) == GregorianCalendar.BC) |
| y *= -1; |
| |
| return y; |
| } |
| |
| /** |
| * Retrieves the actual month as an integer |
| * |
| * @return The actual month as an integer |
| */ |
| public int month() { |
| return _calendar.get(Calendar.MONTH) + 1; |
| } |
| |
| /** |
| * 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 year and month |
| * |
| * @return String representation of the stored year and month |
| */ |
| @Override |
| public String string_value() { |
| String ret = ""; |
| |
| ret += XSDateTime.pad_int(year(), 4); |
| |
| ret += "-"; |
| ret += XSDateTime.pad_int(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:gYearMonth" which is the datatype's full pathname |
| */ |
| @Override |
| public String string_type() { |
| return XS_G_YEAR_MONTH; |
| } |
| |
| /** |
| * Retrieves the Calendar representation of the year and month stored |
| * |
| * @return Calendar representation of the year and month stored |
| */ |
| public Calendar calendar() { |
| return _calendar; |
| } |
| |
| /** |
| * Equality comparison between this and the supplied representation. This |
| * representation must be of type XSGYearMonth |
| * |
| * @param arg |
| * The XSGYearMonth to compare with |
| * @return True if the two representations are of the same year and month. |
| * False otherwise |
| * @throws DynamicError |
| */ |
| public boolean eq(AnyType arg, DynamicContext context) throws DynamicError { |
| XSGYearMonth val = (XSGYearMonth) NumericType.get_single_type(arg, |
| XSGYearMonth.class); |
| Calendar thiscal = normalizeCalendar(calendar(), tz()); |
| Calendar thatcal = normalizeCalendar(val.calendar(), val.tz()); |
| |
| return thiscal.equals(thatcal); |
| } |
| |
| /** |
| * Retrieves the timezone associated with the date stored |
| * |
| * @return the timezone associated with the date stored |
| */ |
| public XSDuration tz() { |
| return _tz; |
| } |
| |
| } |