JDK 11 java.xml.jmod - XML Module
JDK 11 java.xml.jmod is the JMOD file for JDK 11 XML (eXtensible Markup Language) module.
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⏎ com/sun/org/apache/xalan/internal/lib/ExsltDatetime.java
/*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
*/
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.sun.org.apache.xalan.internal.lib;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import com.sun.org.apache.xpath.internal.objects.XBoolean;
import com.sun.org.apache.xpath.internal.objects.XNumber;
import com.sun.org.apache.xpath.internal.objects.XObject;
/**
* This class contains EXSLT dates and times extension functions.
* It is accessed by specifying a namespace URI as follows:
* <pre>
* xmlns:datetime="http://exslt.org/dates-and-times"
* </pre>
*
* The documentation for each function has been copied from the relevant
* EXSLT Implementer page.
*
* @see <a href="http://www.exslt.org/">EXSLT</a>
* @xsl.usage general
* @LastModified: Nov 2017
*/
public class ExsltDatetime
{
// Datetime formats (era and zone handled separately).
static final String dt = "yyyy-MM-dd'T'HH:mm:ss";
static final String d = "yyyy-MM-dd";
static final String gym = "yyyy-MM";
static final String gy = "yyyy";
static final String gmd = "--MM-dd";
static final String gm = "--MM--";
static final String gd = "---dd";
static final String t = "HH:mm:ss";
static final String EMPTY_STR = "";
/**
* The date:date-time function returns the current date and time as a date/time string.
* The date/time string that's returned must be a string in the format defined as the
* lexical representation of xs:dateTime in
* <a href="http://www.w3.org/TR/xmlschema-2/#dateTime">[3.2.7 dateTime]</a> of
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The date/time format is basically CCYY-MM-DDThh:mm:ss, although implementers should consult
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a> and
* <a href="http://www.iso.ch/markete/8601.pdf">[ISO 8601]</a> for details.
* The date/time string format must include a time zone, either a Z to indicate Coordinated
* Universal Time or a + or - followed by the difference between the difference from UTC
* represented as hh:mm.
*/
public static String dateTime()
{
Calendar cal = Calendar.getInstance();
Date datetime = cal.getTime();
// Format for date and time.
SimpleDateFormat dateFormat = new SimpleDateFormat(dt);
StringBuffer buff = new StringBuffer(dateFormat.format(datetime));
// Must also include offset from UTF.
// Get the offset (in milliseconds).
int offset = cal.get(Calendar.ZONE_OFFSET) + cal.get(Calendar.DST_OFFSET);
// If there is no offset, we have "Coordinated
// Universal Time."
if (offset == 0)
buff.append("Z");
else
{
// Convert milliseconds to hours and minutes
int hrs = offset/(60*60*1000);
// In a few cases, the time zone may be +/-hh:30.
int min = offset%(60*60*1000);
char posneg = hrs < 0? '-': '+';
buff.append(posneg).append(formatDigits(hrs)).append(':').append(formatDigits(min));
}
return buff.toString();
}
/**
* Represent the hours and minutes with two-digit strings.
* @param q hrs or minutes.
* @return two-digit String representation of hrs or minutes.
*/
private static String formatDigits(int q)
{
String dd = String.valueOf(Math.abs(q));
return dd.length() == 1 ? '0' + dd : dd;
}
/**
* The date:date function returns the date specified in the date/time string given
* as the argument. If no argument is given, then the current local date/time, as
* returned by date:date-time is used as a default argument.
* The date/time string that's returned must be a string in the format defined as the
* lexical representation of xs:dateTime in
* <a href="http://www.w3.org/TR/xmlschema-2/#dateTime">[3.2.7 dateTime]</a> of
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* If the argument is not in either of these formats, date:date returns an empty string ('').
* The date/time format is basically CCYY-MM-DDThh:mm:ss, although implementers should consult
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a> and
* <a href="http://www.iso.ch/markete/8601.pdf">[ISO 8601]</a> for details.
* The date is returned as a string with a lexical representation as defined for xs:date in
* [3.2.9 date] of [XML Schema Part 2: Datatypes]. The date format is basically CCYY-MM-DD,
* although implementers should consult [XML Schema Part 2: Datatypes] and [ISO 8601] for details.
* If no argument is given or the argument date/time specifies a time zone, then the date string
* format must include a time zone, either a Z to indicate Coordinated Universal Time or a + or -
* followed by the difference between the difference from UTC represented as hh:mm. If an argument
* is specified and it does not specify a time zone, then the date string format must not include
* a time zone.
*/
public static String date(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String leader = edz[0];
String datetime = edz[1];
String zone = edz[2];
if (datetime == null || zone == null)
return EMPTY_STR;
String[] formatsIn = {dt, d};
String formatOut = d;
Date date = testFormats(datetime, formatsIn);
if (date == null) return EMPTY_STR;
SimpleDateFormat dateFormat = new SimpleDateFormat(formatOut);
dateFormat.setLenient(false);
String dateOut = dateFormat.format(date);
if (dateOut.length() == 0)
return EMPTY_STR;
else
return (leader + dateOut + zone);
}
/**
* See above.
*/
public static String date()
{
String datetime = dateTime().toString();
String date = datetime.substring(0, datetime.indexOf("T"));
String zone = datetime.substring(getZoneStart(datetime));
return (date + zone);
}
/**
* The date:time function returns the time specified in the date/time string given
* as the argument. If no argument is given, then the current local date/time, as
* returned by date:date-time is used as a default argument.
* The date/time string that's returned must be a string in the format defined as the
* lexical representation of xs:dateTime in
* <a href="http://www.w3.org/TR/xmlschema-2/#dateTime">[3.2.7 dateTime]</a> of
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* If the argument string is not in this format, date:time returns an empty string ('').
* The date/time format is basically CCYY-MM-DDThh:mm:ss, although implementers should consult
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a> and
* <a href="http://www.iso.ch/markete/8601.pdf">[ISO 8601]</a> for details.
* The date is returned as a string with a lexical representation as defined for xs:time in
* <a href="http://www.w3.org/TR/xmlschema-2/#time">[3.2.8 time]</a> of [XML Schema Part 2: Datatypes].
* The time format is basically hh:mm:ss, although implementers should consult [XML Schema Part 2:
* Datatypes] and [ISO 8601] for details.
* If no argument is given or the argument date/time specifies a time zone, then the time string
* format must include a time zone, either a Z to indicate Coordinated Universal Time or a + or -
* followed by the difference between the difference from UTC represented as hh:mm. If an argument
* is specified and it does not specify a time zone, then the time string format must not include
* a time zone.
*/
public static String time(String timeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(timeIn);
String time = edz[1];
String zone = edz[2];
if (time == null || zone == null)
return EMPTY_STR;
String[] formatsIn = {dt, d, t};
String formatOut = t;
Date date = testFormats(time, formatsIn);
if (date == null) return EMPTY_STR;
SimpleDateFormat dateFormat = new SimpleDateFormat(formatOut);
String out = dateFormat.format(date);
return (out + zone);
}
/**
* See above.
*/
public static String time()
{
String datetime = dateTime().toString();
String time = datetime.substring(datetime.indexOf("T")+1);
// The datetime() function returns the zone on the datetime string. If we
// append it, we get the zone substring duplicated.
// Fix for JIRA 2013
// String zone = datetime.substring(getZoneStart(datetime));
// return (time + zone);
return (time);
}
/**
* The date:year function returns the year of a date as a number. If no
* argument is given, then the current local date/time, as returned by
* date:date-time is used as a default argument.
* The date/time string specified as the first argument must be a right-truncated
* string in the format defined as the lexical representation of xs:dateTime in one
* of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* xs:gYearMonth (CCYY-MM)
* xs:gYear (CCYY)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static double year(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
boolean ad = edz[0].length() == 0; // AD (Common Era -- empty leader)
String datetime = edz[1];
if (datetime == null)
return Double.NaN;
String[] formats = {dt, d, gym, gy};
double yr = getNumber(datetime, formats, Calendar.YEAR);
if (ad || yr == Double.NaN)
return yr;
else
return -yr;
}
/**
* See above.
*/
public static double year()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.YEAR);
}
/**
* The date:month-in-year function returns the month of a date as a number. If no argument
* is given, then the current local date/time, as returned by date:date-time is used
* as a default argument.
* The date/time string specified as the first argument is a left or right-truncated
* string in the format defined as the lexical representation of xs:dateTime in one of
* the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* xs:gYearMonth (CCYY-MM)
* xs:gMonth (--MM--)
* xs:gMonthDay (--MM-DD)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static double monthInYear(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return Double.NaN;
String[] formats = {dt, d, gym, gm, gmd};
return getNumber(datetime, formats, Calendar.MONTH) + 1;
}
/**
* See above.
*/
public static double monthInYear()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.MONTH) + 1;
}
/**
* The date:week-in-year function returns the week of the year as a number. If no argument
* is given, then the current local date/time, as returned by date:date-time is used as the
* default argument. For the purposes of numbering, counting follows ISO 8601: week 1 in a year
* is the week containing the first Thursday of the year, with new weeks beginning on a Monday.
* The date/time string specified as the argument is a right-truncated string in the format
* defined as the lexical representation of xs:dateTime in one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>. The
* permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static double weekInYear(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return Double.NaN;
String[] formats = {dt, d};
return getNumber(datetime, formats, Calendar.WEEK_OF_YEAR);
}
/**
* See above.
*/
public static double weekInYear()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.WEEK_OF_YEAR);
}
/**
* The date:day-in-year function returns the day of a date in a year
* as a number. If no argument is given, then the current local
* date/time, as returned by date:date-time is used the default argument.
* The date/time string specified as the argument is a right-truncated
* string in the format defined as the lexical representation of xs:dateTime
* in one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static double dayInYear(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return Double.NaN;
String[] formats = {dt, d};
return getNumber(datetime, formats, Calendar.DAY_OF_YEAR);
}
/**
* See above.
*/
public static double dayInYear()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.DAY_OF_YEAR);
}
/**
* The date:day-in-month function returns the day of a date as a number.
* If no argument is given, then the current local date/time, as returned
* by date:date-time is used the default argument.
* The date/time string specified as the argument is a left or right-truncated
* string in the format defined as the lexical representation of xs:dateTime
* in one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* xs:gMonthDay (--MM-DD)
* xs:gDay (---DD)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static double dayInMonth(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
String[] formats = {dt, d, gmd, gd};
double day = getNumber(datetime, formats, Calendar.DAY_OF_MONTH);
return day;
}
/**
* See above.
*/
public static double dayInMonth()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.DAY_OF_MONTH);
}
/**
* The date:day-of-week-in-month function returns the day-of-the-week
* in a month of a date as a number (e.g. 3 for the 3rd Tuesday in May).
* If no argument is given, then the current local date/time, as returned
* by date:date-time is used the default argument.
* The date/time string specified as the argument is a right-truncated string
* in the format defined as the lexical representation of xs:dateTime in one
* of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static double dayOfWeekInMonth(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return Double.NaN;
String[] formats = {dt, d};
return getNumber(datetime, formats, Calendar.DAY_OF_WEEK_IN_MONTH);
}
/**
* See above.
*/
public static double dayOfWeekInMonth()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.DAY_OF_WEEK_IN_MONTH);
}
/**
* The date:day-in-week function returns the day of the week given in a
* date as a number. If no argument is given, then the current local date/time,
* as returned by date:date-time is used the default argument.
* The date/time string specified as the argument is a right-truncated string
* in the format defined as the lexical representation of xs:dateTime in one
* of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* If the date/time string is not in one of these formats, then NaN is returned.
The numbering of days of the week starts at 1 for Sunday, 2 for Monday and so on up to 7 for Saturday.
*/
public static double dayInWeek(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return Double.NaN;
String[] formats = {dt, d};
return getNumber(datetime, formats, Calendar.DAY_OF_WEEK);
}
/**
* See above.
*/
public static double dayInWeek()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.DAY_OF_WEEK);
}
/**
* The date:hour-in-day function returns the hour of the day as a number.
* If no argument is given, then the current local date/time, as returned
* by date:date-time is used the default argument.
* The date/time string specified as the argument is a right-truncated
* string in the format defined as the lexical representation of xs:dateTime
* in one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:time (hh:mm:ss)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static double hourInDay(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return Double.NaN;
String[] formats = {dt, t};
return getNumber(datetime, formats, Calendar.HOUR_OF_DAY);
}
/**
* See above.
*/
public static double hourInDay()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.HOUR_OF_DAY);
}
/**
* The date:minute-in-hour function returns the minute of the hour
* as a number. If no argument is given, then the current local
* date/time, as returned by date:date-time is used the default argument.
* The date/time string specified as the argument is a right-truncated
* string in the format defined as the lexical representation of xs:dateTime
* in one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:time (hh:mm:ss)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static double minuteInHour(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return Double.NaN;
String[] formats = {dt,t};
return getNumber(datetime, formats, Calendar.MINUTE);
}
/**
* See above.
*/
public static double minuteInHour()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.MINUTE);
}
/**
* The date:second-in-minute function returns the second of the minute
* as a number. If no argument is given, then the current local
* date/time, as returned by date:date-time is used the default argument.
* The date/time string specified as the argument is a right-truncated
* string in the format defined as the lexical representation of xs:dateTime
* in one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:time (hh:mm:ss)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static double secondInMinute(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return Double.NaN;
String[] formats = {dt, t};
return getNumber(datetime, formats, Calendar.SECOND);
}
/**
* See above.
*/
public static double secondInMinute()
{
Calendar cal = Calendar.getInstance();
return cal.get(Calendar.SECOND);
}
/**
* The date:leap-year function returns true if the year given in a date
* is a leap year. If no argument is given, then the current local
* date/time, as returned by date:date-time is used as a default argument.
* The date/time string specified as the first argument must be a
* right-truncated string in the format defined as the lexical representation
* of xs:dateTime in one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* xs:gYearMonth (CCYY-MM)
* xs:gYear (CCYY)
* If the date/time string is not in one of these formats, then NaN is returned.
*/
public static XObject leapYear(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return new XNumber(Double.NaN);
String[] formats = {dt, d, gym, gy};
double dbl = getNumber(datetime, formats, Calendar.YEAR);
if (dbl == Double.NaN)
return new XNumber(Double.NaN);
int yr = (int)dbl;
return new XBoolean(yr % 400 == 0 || (yr % 100 != 0 && yr % 4 == 0));
}
/**
* See above.
*/
public static boolean leapYear()
{
Calendar cal = Calendar.getInstance();
int yr = cal.get(Calendar.YEAR);
return (yr % 400 == 0 || (yr % 100 != 0 && yr % 4 == 0));
}
/**
* The date:month-name function returns the full name of the month of a date.
* If no argument is given, then the current local date/time, as returned by
* date:date-time is used the default argument.
* The date/time string specified as the argument is a left or right-truncated
* string in the format defined as the lexical representation of xs:dateTime in
* one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* xs:gYearMonth (CCYY-MM)
* xs:gMonth (--MM--)
* If the date/time string is not in one of these formats, then an empty string ('')
* is returned.
* The result is an English month name: one of 'January', 'February', 'March',
* 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November'
* or 'December'.
*/
public static String monthName(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return EMPTY_STR;
String[] formatsIn = {dt, d, gym, gm};
String formatOut = "MMMM";
return getNameOrAbbrev(datetimeIn, formatsIn, formatOut);
}
/**
* See above.
*/
public static String monthName()
{
Calendar cal = Calendar.getInstance();
String format = "MMMM";
return getNameOrAbbrev(format);
}
/**
* The date:month-abbreviation function returns the abbreviation of the month of
* a date. If no argument is given, then the current local date/time, as returned
* by date:date-time is used the default argument.
* The date/time string specified as the argument is a left or right-truncated
* string in the format defined as the lexical representation of xs:dateTime in
* one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* xs:gYearMonth (CCYY-MM)
* xs:gMonth (--MM--)
* If the date/time string is not in one of these formats, then an empty string ('')
* is returned.
* The result is a three-letter English month abbreviation: one of 'Jan', 'Feb', 'Mar',
* 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov' or 'Dec'.
* An implementation of this extension function in the EXSLT date namespace must conform
* to the behaviour described in this document.
*/
public static String monthAbbreviation(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return EMPTY_STR;
String[] formatsIn = {dt, d, gym, gm};
String formatOut = "MMM";
return getNameOrAbbrev(datetimeIn, formatsIn, formatOut);
}
/**
* See above.
*/
public static String monthAbbreviation()
{
String format = "MMM";
return getNameOrAbbrev(format);
}
/**
* The date:day-name function returns the full name of the day of the week
* of a date. If no argument is given, then the current local date/time,
* as returned by date:date-time is used the default argument.
* The date/time string specified as the argument is a left or right-truncated
* string in the format defined as the lexical representation of xs:dateTime
* in one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* If the date/time string is not in one of these formats, then the empty string ('')
* is returned.
* The result is an English day name: one of 'Sunday', 'Monday', 'Tuesday', 'Wednesday',
* 'Thursday' or 'Friday'.
* An implementation of this extension function in the EXSLT date namespace must conform
* to the behaviour described in this document.
*/
public static String dayName(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return EMPTY_STR;
String[] formatsIn = {dt, d};
String formatOut = "EEEE";
return getNameOrAbbrev(datetimeIn, formatsIn, formatOut);
}
/**
* See above.
*/
public static String dayName()
{
String format = "EEEE";
return getNameOrAbbrev(format);
}
/**
* The date:day-abbreviation function returns the abbreviation of the day
* of the week of a date. If no argument is given, then the current local
* date/time, as returned by date:date-time is used the default argument.
* The date/time string specified as the argument is a left or right-truncated
* string in the format defined as the lexical representation of xs:dateTime
* in one of the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* xs:dateTime (CCYY-MM-DDThh:mm:ss)
* xs:date (CCYY-MM-DD)
* If the date/time string is not in one of these formats, then the empty string
* ('') is returned.
* The result is a three-letter English day abbreviation: one of 'Sun', 'Mon', 'Tue',
* 'Wed', 'Thu' or 'Fri'.
* An implementation of this extension function in the EXSLT date namespace must conform
* to the behaviour described in this document.
*/
public static String dayAbbreviation(String datetimeIn)
throws ParseException
{
String[] edz = getEraDatetimeZone(datetimeIn);
String datetime = edz[1];
if (datetime == null)
return EMPTY_STR;
String[] formatsIn = {dt, d};
String formatOut = "EEE";
return getNameOrAbbrev(datetimeIn, formatsIn, formatOut);
}
/**
* See above.
*/
public static String dayAbbreviation()
{
String format = "EEE";
return getNameOrAbbrev(format);
}
/**
* Returns an array with the 3 components that a datetime input string
* may contain: - (for BC era), datetime, and zone. If the zone is not
* valid, return null for that component.
*/
private static String[] getEraDatetimeZone(String in)
{
String leader = "";
String datetime = in;
String zone = "";
if (in.charAt(0)=='-' && !in.startsWith("--"))
{
leader = "-"; // '+' is implicit , not allowed
datetime = in.substring(1);
}
int z = getZoneStart(datetime);
if (z > 0)
{
zone = datetime.substring(z);
datetime = datetime.substring(0, z);
}
else if (z == -2)
zone = null;
//System.out.println("'" + leader + "' " + datetime + " " + zone);
return new String[]{leader, datetime, zone};
}
/**
* Get the start of zone information if the input ends
* with 'Z' or +/-hh:mm. If a zone string is not
* found, return -1; if the zone string is invalid,
* return -2.
*/
private static int getZoneStart (String datetime)
{
if (datetime.indexOf("Z") == datetime.length()-1)
return datetime.length()-1;
else if (datetime.length() >=6
&& datetime.charAt(datetime.length()-3) == ':'
&& (datetime.charAt(datetime.length()-6) == '+'
|| datetime.charAt(datetime.length()-6) == '-'))
{
try
{
SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm");
dateFormat.setLenient(false);
Date d = dateFormat.parse(datetime.substring(datetime.length() -5));
return datetime.length()-6;
}
catch (ParseException pe)
{
System.out.println("ParseException " + pe.getErrorOffset());
return -2; // Invalid.
}
}
return -1; // No zone information.
}
/**
* Attempt to parse an input string with the allowed formats, returning
* null if none of the formats work.
*/
private static Date testFormats (String in, String[] formats)
throws ParseException
{
for (int i = 0; i <formats.length; i++)
{
try
{
SimpleDateFormat dateFormat = new SimpleDateFormat(formats[i]);
dateFormat.setLenient(false);
return dateFormat.parse(in);
}
catch (ParseException pe)
{
}
}
return null;
}
/**
* Parse the input string and return the corresponding calendar field
* number.
*/
private static double getNumber(String in, String[] formats, int calField)
throws ParseException
{
Calendar cal = Calendar.getInstance();
cal.setLenient(false);
// Try the allowed formats, from longest to shortest.
Date date = testFormats(in, formats);
if (date == null) return Double.NaN;
cal.setTime(date);
return cal.get(calField);
}
/**
* Get the full name or abbreviation of the month or day.
*/
private static String getNameOrAbbrev(String in,
String[] formatsIn,
String formatOut)
throws ParseException
{
for (int i = 0; i <formatsIn.length; i++) // from longest to shortest.
{
try
{
SimpleDateFormat dateFormat = new SimpleDateFormat(formatsIn[i], Locale.ENGLISH);
dateFormat.setLenient(false);
Date dt = dateFormat.parse(in);
dateFormat.applyPattern(formatOut);
return dateFormat.format(dt);
}
catch (ParseException pe)
{
}
}
return "";
}
/**
* Get the full name or abbreviation for the current month or day
* (no input string).
*/
private static String getNameOrAbbrev(String format)
{
Calendar cal = Calendar.getInstance();
SimpleDateFormat dateFormat = new SimpleDateFormat(format, Locale.ENGLISH);
return dateFormat.format(cal.getTime());
}
/**
* The date:format-date function formats a date/time according to a pattern.
* <p>
* The first argument to date:format-date specifies the date/time to be
* formatted. It must be right or left-truncated date/time strings in one of
* the formats defined in
* <a href="http://www.w3.org/TR/xmlschema-2/">[XML Schema Part 2: Datatypes]</a>.
* The permitted formats are as follows:
* <ul>
* <li>xs:dateTime (CCYY-MM-DDThh:mm:ss)
* <li>xs:date (CCYY-MM-DD)
* <li>xs:time (hh:mm:ss)
* <li>xs:gYearMonth (CCYY-MM)
* <li>xs:gYear (CCYY)
* <li>xs:gMonthDay (--MM-DD)
* <li>xs:gMonth (--MM--)
* <li>xs:gDay (---DD)
* </ul>
* The second argument is a string that gives the format pattern used to
* format the date. The format pattern must be in the syntax specified by
* the JDK 1.1 SimpleDateFormat class. The format pattern string is
* interpreted as described for the JDK 1.1 SimpleDateFormat class.
* <p>
* If the date/time format is right-truncated (i.e. in a format other than
* xs:time, or xs:dateTime) then any missing components are assumed to be as
* follows: if no month is specified, it is given a month of 01; if no day
* is specified, it is given a day of 01; if no time is specified, it is
* given a time of 00:00:00.
* <p>
* If the date/time format is left-truncated (i.e. xs:time, xs:gMonthDay,
* xs:gMonth or xs:gDay) and the format pattern has a token that uses a
* component that is missing from the date/time format used, then that token
* is replaced with an empty string ('') within the result.
*
* The author is Helg Bredow (helg.bredow@kalido.com)
*/
public static String formatDate(String dateTime, String pattern)
{
final String yearSymbols = "Gy";
final String monthSymbols = "M";
final String daySymbols = "dDEFwW";
TimeZone timeZone;
String zone;
// Get the timezone information if it was supplied and modify the
// dateTime so that SimpleDateFormat will understand it.
if (dateTime.endsWith("Z") || dateTime.endsWith("z"))
{
timeZone = TimeZone.getTimeZone("GMT");
dateTime = dateTime.substring(0, dateTime.length()-1) + "GMT";
zone = "z";
}
else if ((dateTime.length() >= 6)
&& (dateTime.charAt(dateTime.length()-3) == ':')
&& ((dateTime.charAt(dateTime.length()-6) == '+')
|| (dateTime.charAt(dateTime.length()-6) == '-')))
{
String offset = dateTime.substring(dateTime.length()-6);
if ("+00:00".equals(offset) || "-00:00".equals(offset))
{
timeZone = TimeZone.getTimeZone("GMT");
}
else
{
timeZone = TimeZone.getTimeZone("GMT" + offset);
}
zone = "z";
// Need to adjust it since SimpleDateFormat requires GMT+hh:mm but
// we have +hh:mm.
dateTime = dateTime.substring(0, dateTime.length()-6) + "GMT" + offset;
}
else
{
// Assume local time.
timeZone = TimeZone.getDefault();
zone = "";
// Leave off the timezone since SimpleDateFormat will assume local
// time if time zone is not included.
}
String[] formats = {dt + zone, d, gym, gy};
// Try the time format first. We need to do this to prevent
// SimpleDateFormat from interpreting a time as a year. i.e we just need
// to check if it's a time before we check it's a year.
try
{
SimpleDateFormat inFormat = new SimpleDateFormat(t + zone);
inFormat.setLenient(false);
Date d= inFormat.parse(dateTime);
SimpleDateFormat outFormat = new SimpleDateFormat(strip
(yearSymbols + monthSymbols + daySymbols, pattern));
outFormat.setTimeZone(timeZone);
return outFormat.format(d);
}
catch (ParseException pe)
{
}
// Try the right truncated formats.
for (int i = 0; i < formats.length; i++)
{
try
{
SimpleDateFormat inFormat = new SimpleDateFormat(formats[i]);
inFormat.setLenient(false);
Date d = inFormat.parse(dateTime);
SimpleDateFormat outFormat = new SimpleDateFormat(pattern);
outFormat.setTimeZone(timeZone);
return outFormat.format(d);
}
catch (ParseException pe)
{
}
}
// Now try the left truncated ones. The Java format() function doesn't
// return the correct strings in this case. We strip any pattern
// symbols that shouldn't be output so that they are not defaulted to
// inappropriate values in the output.
try
{
SimpleDateFormat inFormat = new SimpleDateFormat(gmd);
inFormat.setLenient(false);
Date d = inFormat.parse(dateTime);
SimpleDateFormat outFormat = new SimpleDateFormat(strip(yearSymbols, pattern));
outFormat.setTimeZone(timeZone);
return outFormat.format(d);
}
catch (ParseException pe)
{
}
try
{
SimpleDateFormat inFormat = new SimpleDateFormat(gm);
inFormat.setLenient(false);
Date d = inFormat.parse(dateTime);
SimpleDateFormat outFormat = new SimpleDateFormat(strip(yearSymbols, pattern));
outFormat.setTimeZone(timeZone);
return outFormat.format(d);
}
catch (ParseException pe)
{
}
try
{
SimpleDateFormat inFormat = new SimpleDateFormat(gd);
inFormat.setLenient(false);
Date d = inFormat.parse(dateTime);
SimpleDateFormat outFormat = new SimpleDateFormat(strip(yearSymbols + monthSymbols, pattern));
outFormat.setTimeZone(timeZone);
return outFormat.format(d);
}
catch (ParseException pe)
{
}
return EMPTY_STR;
}
/**
* Strips occurrences of the given character from a date format pattern.
* @param symbols list of symbols to strip.
* @param pattern
* @return
*/
private static String strip(String symbols, String pattern)
{
int quoteSemaphore = 0;
int i = 0;
StringBuffer result = new StringBuffer(pattern.length());
while (i < pattern.length())
{
char ch = pattern.charAt(i);
if (ch == '\'')
{
// Assume it's an openening quote so simply copy the quoted
// text to the result. There is nothing to strip here.
int endQuote = pattern.indexOf('\'', i + 1);
if (endQuote == -1)
{
endQuote = pattern.length();
}
result.append(pattern.substring(i, endQuote));
i = endQuote++;
}
else if (symbols.indexOf(ch) > -1)
{
// The char needs to be stripped.
i++;
}
else
{
result.append(ch);
i++;
}
}
return result.toString();
}
}
⏎ com/sun/org/apache/xalan/internal/lib/ExsltDatetime.java
Or download all of them as a single archive file:
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