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Java date time library based on joda time
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/*
* Copyright (C) 2014-2024 Philip Helger (www.helger.com)
* philip[at]helger[dot]com
*
* Licensed 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.helger.datetime.util;
import java.time.Clock;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZonedDateTime;
import java.time.temporal.ChronoField;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import javax.annotation.CheckForSigned;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeConstants;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.helger.commons.CGlobal;
import com.helger.commons.annotation.PresentForCodeCoverage;
import com.helger.commons.datetime.PDTConfig;
import com.helger.commons.datetime.PDTFactory;
import com.helger.commons.exception.InitializationException;
/**
* Utility class for XML date/time data type handling.
*
* @author Philip Helger
*/
@Immutable
public final class PDTXMLConverter
{
private static final Logger LOGGER = LoggerFactory.getLogger (PDTXMLConverter.class);
private static final DatatypeFactory DT_FACTORY;
static
{
try
{
// required for the Gregorian calendar
DT_FACTORY = DatatypeFactory.newInstance ();
}
catch (final DatatypeConfigurationException ex)
{
throw new InitializationException ("Failed to init DataTypeFactory", ex);
}
}
@PresentForCodeCoverage
private static final PDTXMLConverter INSTANCE = new PDTXMLConverter ();
private PDTXMLConverter ()
{}
/**
* @return The global {@link DatatypeFactory} used internally in this class.
*/
@Nonnull
public static DatatypeFactory getDatatypeFactory ()
{
return DT_FACTORY;
}
/**
* Convert milliseconds to minutes.
*
* @param nOffsetInMillis
* The offset in milliseconds to use. May not be null.
* @return 0 for no offset to UTC, the minutes otherwise. Usually in 60minutes
* steps :)
*/
public static int getTimezoneOffsetInMinutes (final int nOffsetInMillis)
{
return nOffsetInMillis / (int) CGlobal.MILLISECONDS_PER_MINUTE;
}
/**
* Get the time zone offset to UTC of the passed calendar in minutes to be
* used in {@link XMLGregorianCalendar}.
*
* @param aCalendar
* The calendar to use. May not be null.
* @return 0 for no offset to UTC, the minutes otherwise. Usually in 60minutes
* steps :)
*/
public static int getTimezoneOffsetInMinutes (@Nonnull final Calendar aCalendar)
{
final int nOffsetInMillis = aCalendar.getTimeZone ().getOffset (aCalendar.getTimeInMillis ());
return getTimezoneOffsetInMinutes (nOffsetInMillis);
}
/**
* Get the passed date as {@link GregorianCalendar} using the default time
* zone.
*
* @param aDate
* The source date. May be null.
* @return Never null.
*/
@Nonnull
public static GregorianCalendar getCalendar (@Nonnull final Date aDate)
{
final GregorianCalendar aCalendar = new GregorianCalendar (PDTFactory.getTimeZone (aDate), Locale.getDefault (Locale.Category.FORMAT));
aCalendar.setTime (aDate);
return aCalendar;
}
/**
* Get the passed milliseconds as {@link GregorianCalendar}.
*
* @param nMillis
* Milliseconds since 1.1.1970
* @return Never null.
* @since 9.1.8
*/
@Nonnull
public static GregorianCalendar getCalendarDefaultTimeZone (final long nMillis)
{
final GregorianCalendar aCalendar = new GregorianCalendar (PDTConfig.getDefaultTimeZone (), Locale.getDefault (Locale.Category.FORMAT));
aCalendar.setTimeInMillis (nMillis);
return aCalendar;
}
/**
* Get the passed milliseconds as {@link GregorianCalendar}.
*
* @param nMillis
* Milliseconds since 1.1.1970
* @return Never null.
* @since 9.1.8
*/
@Nonnull
public static GregorianCalendar getCalendarUTC (final long nMillis)
{
final GregorianCalendar aCalendar = new GregorianCalendar (PDTConfig.getUTCTimeZone (), Locale.getDefault (Locale.Category.FORMAT));
aCalendar.setTimeInMillis (nMillis);
return aCalendar;
}
/**
* @return A new XML calendar instance, with all fields uninitialized. Never
* null.
*/
@Nonnull
public static XMLGregorianCalendar createNewCalendar ()
{
return DT_FACTORY.newXMLGregorianCalendar ();
}
/**
* Get the current date as {@link XMLGregorianCalendar}.
*
* @return Never null.
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendarDateNow ()
{
return getXMLCalendarDate (PDTFactory.getCurrentLocalDate ());
}
/**
* Get the passed object as {@link XMLGregorianCalendar} date (without a
* time).
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendarDate (@Nullable final LocalDate aBase)
{
return getXMLCalendarDate (aBase, DatatypeConstants.FIELD_UNDEFINED);
}
/**
* Get the passed object as {@link XMLGregorianCalendar} date (without a
* time).
*
* @param aBase
* The source object. May be null.
* @param nTimezoneOffsetInMinutes
* Timezone offset in minutes. Use
* {@link DatatypeConstants#FIELD_UNDEFINED} if none is to be used.
* @return null if the parameter is null.
* @since 9.3.5
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendarDate (@Nullable final LocalDate aBase, final int nTimezoneOffsetInMinutes)
{
if (aBase == null)
return null;
return DT_FACTORY.newXMLGregorianCalendarDate (aBase.getYear (),
aBase.getMonth ().getValue (),
aBase.getDayOfMonth (),
nTimezoneOffsetInMinutes);
}
/**
* Get the passed object as {@link XMLGregorianCalendar} date (without a
* time).
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendarDate (@Nullable final Date aBase)
{
if (aBase == null)
return null;
return getXMLCalendarDate (getCalendar (aBase));
}
/**
* Get the passed object as {@link XMLGregorianCalendar} date (without a
* time).
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendarDate (@Nullable final GregorianCalendar aBase)
{
if (aBase == null)
return null;
// Month in XMLGregorianCalendar is 1-based! Fix in 9.1.8
return DT_FACTORY.newXMLGregorianCalendarDate (aBase.get (Calendar.YEAR),
aBase.get (Calendar.MONTH) + 1,
aBase.get (Calendar.DAY_OF_MONTH),
getTimezoneOffsetInMinutes (aBase));
}
/**
* Get the passed object as {@link XMLGregorianCalendar} date (without a
* time).
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendarDate (@Nullable final XMLGregorianCalendar aBase)
{
if (aBase == null)
return null;
return DT_FACTORY.newXMLGregorianCalendarDate (aBase.getYear (),
aBase.getMonth (),
aBase.getDay (),
aBase.getTimezone () == 0 ? DatatypeConstants.FIELD_UNDEFINED : aBase.getTimezone ());
}
/**
*
* Create a Java representation of XML Schema builtin datatype
* date or g*.
*
*
* For example, an instance of gYear can be created invoking this
* factory with month and day parameters set to
* {@link DatatypeConstants#FIELD_UNDEFINED}.
*
*
* A {@link DatatypeConstants#FIELD_UNDEFINED} value indicates that field is
* not set.
*
*
* @param nYear
* Year to be created.
* @param nMonth
* Month to be created.
* @param nDay
* Day to be created.
* @return XMLGregorianCalendar created from parameter values.
* @see DatatypeConstants#FIELD_UNDEFINED
* @throws IllegalArgumentException
* If any individual parameter's value is outside the maximum value
* constraint for the field as determined by the Date/Time Data
* Mapping table in {@link XMLGregorianCalendar} or if the composite
* values constitute an invalid XMLGregorianCalendar
* instance as determined by {@link XMLGregorianCalendar#isValid()}.
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendarDate (final int nYear, final int nMonth, final int nDay)
{
return getXMLCalendarDate (nYear, nMonth, nDay, DatatypeConstants.FIELD_UNDEFINED);
}
/**
*
* Create a Java representation of XML Schema builtin datatype
* date or g*.
*
*
* For example, an instance of gYear can be created invoking this
* factory with month and day parameters set to
* {@link DatatypeConstants#FIELD_UNDEFINED}.
*
*
* A {@link DatatypeConstants#FIELD_UNDEFINED} value indicates that field is
* not set.
*
*
* @param nYear
* Year to be created.
* @param nMonth
* Month to be created.
* @param nDay
* Day to be created.
* @param nTimezone
* Offset in minutes. {@link DatatypeConstants#FIELD_UNDEFINED}
* indicates optional field is not set.
* @return XMLGregorianCalendar created from parameter values.
* @see DatatypeConstants#FIELD_UNDEFINED
* @throws IllegalArgumentException
* If any individual parameter's value is outside the maximum value
* constraint for the field as determined by the Date/Time Data
* Mapping table in {@link XMLGregorianCalendar} or if the composite
* values constitute an invalid XMLGregorianCalendar
* instance as determined by {@link XMLGregorianCalendar#isValid()}.
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendarDate (final int nYear, final int nMonth, final int nDay, final int nTimezone)
{
return DT_FACTORY.newXMLGregorianCalendarDate (nYear, nMonth, nDay, nTimezone);
}
/**
* Get the current time as {@link XMLGregorianCalendar}.
*
* @return Never null.
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendarTimeNow ()
{
return getXMLCalendarTime (PDTFactory.getCurrentLocalTime ());
}
/**
* Get the passed object as {@link XMLGregorianCalendar} time (without a
* date).
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendarTime (@Nullable final LocalTime aBase)
{
if (aBase == null)
return null;
return DT_FACTORY.newXMLGregorianCalendarTime (aBase.getHour (),
aBase.getMinute (),
aBase.getSecond (),
aBase.get (ChronoField.MILLI_OF_SECOND),
DatatypeConstants.FIELD_UNDEFINED);
}
/**
* Get the passed object as {@link XMLGregorianCalendar} time (without a
* date).
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendarTime (@Nullable final Date aBase)
{
if (aBase == null)
return null;
return getXMLCalendarTime (getCalendar (aBase));
}
/**
* Get the passed object as {@link XMLGregorianCalendar} time (without a
* date).
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendarTime (@Nullable final GregorianCalendar aBase)
{
if (aBase == null)
return null;
return DT_FACTORY.newXMLGregorianCalendarTime (aBase.get (Calendar.HOUR_OF_DAY),
aBase.get (Calendar.MINUTE),
aBase.get (Calendar.SECOND),
aBase.get (Calendar.MILLISECOND),
getTimezoneOffsetInMinutes (aBase));
}
/**
* Get the passed object as {@link XMLGregorianCalendar} time (without a
* date).
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendarTime (@Nullable final XMLGregorianCalendar aBase)
{
if (aBase == null)
return null;
return DT_FACTORY.newXMLGregorianCalendarTime (aBase.getHour (),
aBase.getMinute (),
aBase.getSecond (),
aBase.getMillisecond (),
aBase.getTimezone ());
}
/**
*
* Create a Java representation of XML Schema builtin datatype
* date or g*.
*
*
* For example, an instance of gYear can be created invoking this
* factory with month and day parameters set to
* {@link DatatypeConstants#FIELD_UNDEFINED}.
*
*
* A {@link DatatypeConstants#FIELD_UNDEFINED} value indicates that field is
* not set.
*
*
* @param nHour
* Hour to be created.
* @param nMinute
* Minute to be created.
* @param nSecond
* Second to be created.
* @param nMilliSecond
* Milli second to be created.
* @return XMLGregorianCalendar created from parameter values.
* @see DatatypeConstants#FIELD_UNDEFINED
* @throws IllegalArgumentException
* If any individual parameter's value is outside the maximum value
* constraint for the field as determined by the Date/Time Data
* Mapping table in {@link XMLGregorianCalendar} or if the composite
* values constitute an invalid XMLGregorianCalendar
* instance as determined by {@link XMLGregorianCalendar#isValid()}.
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendarTime (final int nHour, final int nMinute, final int nSecond, final int nMilliSecond)
{
return getXMLCalendarTime (nHour, nMinute, nSecond, nMilliSecond, DatatypeConstants.FIELD_UNDEFINED);
}
/**
*
* Create a Java representation of XML Schema builtin datatype
* date or g*.
*
*
* For example, an instance of gYear can be created invoking this
* factory with month and day parameters set to
* {@link DatatypeConstants#FIELD_UNDEFINED}.
*
*
* A {@link DatatypeConstants#FIELD_UNDEFINED} value indicates that field is
* not set.
*
*
* @param nHour
* Hour to be created.
* @param nMinute
* Minute to be created.
* @param nSecond
* Second to be created.
* @param nMilliSecond
* Milli second to be created.
* @param nTimezone
* Offset in minutes. {@link DatatypeConstants#FIELD_UNDEFINED}
* indicates optional field is not set.
* @return XMLGregorianCalendar created from parameter values.
* @see DatatypeConstants#FIELD_UNDEFINED
* @throws IllegalArgumentException
* If any individual parameter's value is outside the maximum value
* constraint for the field as determined by the Date/Time Data
* Mapping table in {@link XMLGregorianCalendar} or if the composite
* values constitute an invalid XMLGregorianCalendar
* instance as determined by {@link XMLGregorianCalendar#isValid()}.
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendarTime (final int nHour,
final int nMinute,
final int nSecond,
final int nMilliSecond,
final int nTimezone)
{
return DT_FACTORY.newXMLGregorianCalendarTime (nHour, nMinute, nSecond, nMilliSecond, nTimezone);
}
/**
* Get the current date and time as {@link XMLGregorianCalendar} in the
* default time zone.
*
* @return Never null.
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendarNow ()
{
return getXMLCalendar (PDTFactory.getCurrentZonedDateTime ());
}
/**
* Get the current date and time as {@link XMLGregorianCalendar} in UTC.
*
* @return Never null.
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendarNowUTC ()
{
return getXMLCalendar (LocalDateTime.now (Clock.systemUTC ()));
}
/**
* Get the passed object as {@link XMLGregorianCalendar} with date and time.
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendar (@Nullable final LocalDateTime aBase)
{
if (aBase == null)
return null;
return DT_FACTORY.newXMLGregorianCalendar (aBase.getYear (),
aBase.getMonth ().getValue (),
aBase.getDayOfMonth (),
aBase.getHour (),
aBase.getMinute (),
aBase.getSecond (),
aBase.get (ChronoField.MILLI_OF_SECOND),
DatatypeConstants.FIELD_UNDEFINED);
}
/**
* Get the passed object as {@link XMLGregorianCalendar} with date and time.
*
* @param aBase
* The source object. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendar (@Nullable final ZonedDateTime aBase)
{
if (aBase == null)
return null;
return DT_FACTORY.newXMLGregorianCalendar (GregorianCalendar.from (aBase));
}
/**
* Get the passed {@link GregorianCalendar} as {@link XMLGregorianCalendar}.
*
* @param aCal
* Source calendar. May be null.
* @return null if the passed calendar is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendar (@Nullable final GregorianCalendar aCal)
{
if (aCal == null)
return null;
return DT_FACTORY.newXMLGregorianCalendar (aCal);
}
/**
* Create a new {@link XMLGregorianCalendar} using separate objects for date
* and time.
*
* @param aDate
* Source date. May be null.
* @param aTime
* Source time. May be null.
* @return null if the passed date and time are null
* .
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendar (@Nullable final XMLGregorianCalendar aDate, @Nullable final XMLGregorianCalendar aTime)
{
if (aDate == null && aTime == null)
return null;
if (aTime == null)
{
// Date only
return DT_FACTORY.newXMLGregorianCalendar (aDate.getYear (), aDate.getMonth (), aDate.getDay (), 0, 0, 0, 0, aDate.getTimezone ());
}
if (aDate == null)
{
// Time only
return DT_FACTORY.newXMLGregorianCalendar (0,
0,
0,
aTime.getHour (),
aTime.getMinute (),
aTime.getSecond (),
aTime.getMillisecond (),
aTime.getTimezone ());
}
if (aDate.getTimezone () != aTime.getTimezone ())
LOGGER.warn ("Date and time have different timezones: " + aDate.getTimezone () + " vs. " + aTime.getTimezone ());
return DT_FACTORY.newXMLGregorianCalendar (aDate.getYear (),
aDate.getMonth (),
aDate.getDay (),
aTime.getHour (),
aTime.getMinute (),
aTime.getSecond (),
aTime.getMillisecond (),
aDate.getTimezone ());
}
/**
* Get the passed milliseconds as {@link XMLGregorianCalendar}.
*
* @param nMillis
* Milliseconds since 1.1.1970
* @return Never null.
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendar (final long nMillis)
{
return DT_FACTORY.newXMLGregorianCalendar (getCalendarDefaultTimeZone (nMillis));
}
/**
* Get the passed milliseconds as {@link XMLGregorianCalendar}.
*
* @param nMillis
* Milliseconds since 1.1.1970
* @return Never null.
* @since 9.1.8
*/
@Nonnull
public static XMLGregorianCalendar getXMLCalendarUTC (final long nMillis)
{
return DT_FACTORY.newXMLGregorianCalendar (getCalendarUTC (nMillis));
}
/**
* Get the passed {@link Date} as {@link XMLGregorianCalendar}.
*
* @param aDate
* Source date. May be null.
* @return null if the passed date is null.
*/
@Nullable
public static XMLGregorianCalendar getXMLCalendar (@Nullable final Date aDate)
{
if (aDate == null)
return null;
return DT_FACTORY.newXMLGregorianCalendar (getCalendar (aDate));
}
/**
* Convert the passed {@link XMLGregorianCalendar} to a
* {@link GregorianCalendar}.
*
* @param aCal
* Source calendar. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static GregorianCalendar getGregorianCalendar (@Nullable final XMLGregorianCalendar aCal)
{
if (aCal == null)
return null;
return aCal.toGregorianCalendar (aCal.getTimeZone (aCal.getTimezone ()), Locale.getDefault (Locale.Category.FORMAT), null);
}
/**
* Get the passed {@link XMLGregorianCalendar} as {@link LocalDate}.
*
* @param aCal
* The source {@link XMLGregorianCalendar}. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static LocalDate getLocalDate (@Nullable final XMLGregorianCalendar aCal)
{
if (aCal == null)
return null;
return getGregorianCalendar (aCal).toZonedDateTime ().toLocalDate ();
}
/**
* Get the passed {@link XMLGregorianCalendar} as {@link LocalTime}.
*
* @param aCal
* The source {@link XMLGregorianCalendar}. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static LocalTime getLocalTime (@Nullable final XMLGregorianCalendar aCal)
{
if (aCal == null)
return null;
return getGregorianCalendar (aCal).toZonedDateTime ().toLocalTime ();
}
/**
* Get the passed {@link XMLGregorianCalendar} as {@link LocalDateTime}.
*
* @param aCal
* The source {@link XMLGregorianCalendar}. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static LocalDateTime getLocalDateTime (@Nullable final XMLGregorianCalendar aCal)
{
if (aCal == null)
return null;
return getGregorianCalendar (aCal).toZonedDateTime ().toLocalDateTime ();
}
/**
* Get the passed {@link XMLGregorianCalendar} as {@link ZonedDateTime}.
*
* @param aCal
* The source {@link XMLGregorianCalendar}. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static ZonedDateTime getZonedDateTime (@Nullable final XMLGregorianCalendar aCal)
{
if (aCal == null)
return null;
return getGregorianCalendar (aCal).toZonedDateTime ();
}
/**
* Get the passed {@link XMLGregorianCalendar} as {@link Date}.
*
* @param aCal
* The source {@link XMLGregorianCalendar}. May be null.
* @return null if the parameter is null.
*/
@Nullable
public static Date getDate (@Nullable final XMLGregorianCalendar aCal)
{
final GregorianCalendar aGregorianCalendar = getGregorianCalendar (aCal);
return aGregorianCalendar == null ? null : aGregorianCalendar.getTime ();
}
/**
* Get the passed {@link XMLGregorianCalendar} as milliseconds.
*
* @param aCal
* The source {@link XMLGregorianCalendar}. May be null.
* @return {@link CGlobal#ILLEGAL_ULONG} if the parameter is
* null.
*/
@CheckForSigned
public static long getMillis (@Nullable final XMLGregorianCalendar aCal)
{
final GregorianCalendar aGregorianCalendar = getGregorianCalendar (aCal);
return aGregorianCalendar == null ? CGlobal.ILLEGAL_ULONG : aGregorianCalendar.getTimeInMillis ();
}
}