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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.commons.datetime;
import static java.time.temporal.ChronoField.DAY_OF_MONTH;
import static java.time.temporal.ChronoField.HOUR_OF_DAY;
import static java.time.temporal.ChronoField.MILLI_OF_SECOND;
import static java.time.temporal.ChronoField.MINUTE_OF_HOUR;
import static java.time.temporal.ChronoField.MONTH_OF_YEAR;
import static java.time.temporal.ChronoField.SECOND_OF_MINUTE;
import static java.time.temporal.ChronoField.YEAR;
import java.time.Clock;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.OffsetTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.chrono.IsoChronology;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.time.format.DateTimeParseException;
import java.time.format.ResolverStyle;
import java.time.format.SignStyle;
import java.time.temporal.Temporal;
import java.util.Locale;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.helger.commons.ValueEnforcer;
import com.helger.commons.annotation.Nonempty;
import com.helger.commons.annotation.PresentForCodeCoverage;
import com.helger.commons.string.StringHelper;
import com.helger.commons.typeconvert.TypeConverter;
/**
* A helper class that parses Dates out of Strings with date time in RFC822 and
* W3CDateTime formats plus the variants Atom (0.3) and RSS (0.9, 0.91, 0.92,
* 0.93, 0.94, 1.0 and 2.0) specificators added to those formats.
* It uses the JDK java.text.SimpleDateFormat class attempting the parse using a
* mask for each one of the possible formats.
* Original work Copyright 2004 Sun Microsystems, Inc.
*
* @author Alejandro Abdelnur (original; mainly the formatting masks)
* @author Philip Helger (major modification)
*/
@Immutable
public final class PDTWebDateHelper
{
private static final Logger LOGGER = LoggerFactory.getLogger (PDTWebDateHelper.class);
// "XXX" [no todo] means "+HH:mm"
// "XX" means "+HHmm"
private static final String ZONE_PATTERN1 = "XXX";
private static final String ZONE_PATTERN2 = "XX";
private static final String FORMAT_RFC822 = "EEE, dd MMM uuuu HH:mm:ss 'GMT'";
private static final String FORMAT_W3C = "uuuu-MM-dd'T'HH:mm:ss" + ZONE_PATTERN1;
/**
* order is like this because the SimpleDateFormat.parse does not fail with
* exception if it can parse a valid date out of a substring of the full
* string given the mask so we have to check the most complete format first,
* then it fails with exception.
* RFC 1123 superseding 822 recommends to use yyyy instead of yy
* Because of strict formatting "uuuu" (year) must be used instead of "yyyy"
* (year of era)
*/
private static final PDTMask [] RFC822_MASKS = { PDTMask.zonedDateTime (FORMAT_RFC822),
PDTMask.zonedDateTime ("EEE, dd MMM uuuu HH:mm:ss " + ZONE_PATTERN2),
PDTMask.localDateTime ("EEE, dd MMM uuuu HH:mm:ss"),
PDTMask.localDateTime ("EEE, dd MMM uu HH:mm:ss"),
PDTMask.localDateTime ("EEE, dd MMM uuuu HH:mm"),
PDTMask.localDateTime ("EEE, dd MMM uu HH:mm"),
PDTMask.localDateTime ("dd MMM uuuu HH:mm:ss"),
PDTMask.localDateTime ("dd MMM uu HH:mm:ss"),
PDTMask.localDateTime ("dd MMM uuuu HH:mm"),
PDTMask.localDateTime ("dd MMM uu HH:mm") };
/*
* order is like this because the SimpleDateFormat.parse does not fail with
* exception if it can parse a valid date out of a substring of the full
* string given the mask so we have to check the most complete format first,
* then it fails with exception
*/
private static final PDTMask [] W3CDATETIME_MASKS = { PDTMask.offsetDateTime ("uuuu-MM-dd'T'HH:mm:ss.SSS" + ZONE_PATTERN1),
PDTMask.offsetDateTime ("uuuu-MM-dd'T'HH:mm:ss.SSS" + ZONE_PATTERN2),
PDTMask.offsetDateTime ("uuuu-MM-dd't'HH:mm:ss.SSS" + ZONE_PATTERN1),
PDTMask.offsetDateTime ("uuuu-MM-dd't'HH:mm:ss.SSS" + ZONE_PATTERN2),
PDTMask.localDateTime ("uuuu-MM-dd'T'HH:mm:ss.SSS"),
PDTMask.localDateTime ("uuuu-MM-dd't'HH:mm:ss.SSS"),
PDTMask.offsetDateTime (FORMAT_W3C),
PDTMask.offsetDateTime ("uuuu-MM-dd'T'HH:mm:ss" + ZONE_PATTERN2),
PDTMask.offsetDateTime ("uuuu-MM-dd't'HH:mm:ss" + ZONE_PATTERN1),
PDTMask.offsetDateTime ("uuuu-MM-dd't'HH:mm:ss" + ZONE_PATTERN2),
PDTMask.localDateTime ("uuuu-MM-dd'T'HH:mm:ss"),
PDTMask.localDateTime ("uuuu-MM-dd't'HH:mm:ss"),
PDTMask.offsetDateTime ("uuuu-MM-dd'T'HH:mm" + ZONE_PATTERN1),
PDTMask.offsetDateTime ("uuuu-MM-dd'T'HH:mm" + ZONE_PATTERN2),
PDTMask.offsetDateTime ("uuuu-MM-dd't'HH:mm" + ZONE_PATTERN1),
PDTMask.offsetDateTime ("uuuu-MM-dd't'HH:mm" + ZONE_PATTERN2),
PDTMask.localDateTime ("uuuu-MM-dd'T'HH:mm"),
PDTMask.localDateTime ("uuuu-MM-dd't'HH:mm"),
/*
* Applies to the
* following 2:
* together with
* logic in the
* parseW3CDateTime
* they handle W3C
* dates without
* time forcing them
* to be GMT
*/
PDTMask.localDateTime ("uuuu-MM'T'HH:mm"),
PDTMask.localDateTime ("uuuu'T'HH:mm"),
PDTMask.localDate ("uuuu-MM-dd"),
PDTMask.yearMonth ("uuuu-MM"),
PDTMask.year ("uuuu") };
private static final Locale LOCALE_TO_USE = Locale.US;
@PresentForCodeCoverage
private static final PDTWebDateHelper INSTANCE = new PDTWebDateHelper ();
private PDTWebDateHelper ()
{}
/**
* Parses a Date out of a string using an array of masks. It uses the masks in
* order until one of them succeeds or all fail.
*
* @param aMasks
* array of masks to use for parsing the string
* @param sDate
* string to parse for a date.
* @return the Date represented by the given string using one of the given
* masks. It returns null if it was not possible to parse the
* the string with any of the masks.
*/
@Nullable
public static OffsetDateTime parseOffsetDateTimeUsingMask (@Nonnull final PDTMask [] aMasks, @Nonnull @Nonempty final String sDate)
{
for (final PDTMask aMask : aMasks)
{
final DateTimeFormatter aDTF = PDTFormatter.getForPattern (aMask.getPattern (), LOCALE_TO_USE);
try
{
final Temporal ret = aDTF.parse (sDate, aMask.getQuery ());
if (LOGGER.isDebugEnabled ())
LOGGER.debug ("Parsed '" + sDate + "' with '" + aMask.getPattern () + "' to " + ret.getClass ().getName ());
return TypeConverter.convert (ret, OffsetDateTime.class);
}
catch (final DateTimeParseException ex)
{
if (LOGGER.isDebugEnabled ())
LOGGER.debug ("Failed to parse '" + sDate + "' with '" + aMask.getPattern () + "': " + ex.getMessage ());
}
}
return null;
}
/**
* Parses a Date out of a string using an array of masks. It uses the masks in
* order until one of them succeeds or all fail.
*
* @param aMasks
* array of masks to use for parsing the string
* @param sDate
* string to parse for a date.
* @param aDTZ
* The date/time zone to use. Optional.
* @return the Date represented by the given string using one of the given
* masks. It returns null if it was not possible to parse the
* the string with any of the masks.
*/
@Nullable
public static ZonedDateTime parseZonedDateTimeUsingMask (@Nonnull final PDTMask [] aMasks,
@Nonnull @Nonempty final String sDate,
@Nullable final ZoneId aDTZ)
{
for (final PDTMask aMask : aMasks)
{
DateTimeFormatter aDTF = PDTFormatter.getForPattern (aMask.getPattern (), LOCALE_TO_USE);
if (aDTZ != null)
aDTF = aDTF.withZone (aDTZ);
try
{
final Temporal ret = aDTF.parse (sDate, aMask.getQuery ());
if (LOGGER.isDebugEnabled ())
LOGGER.debug ("Parsed '" + sDate + "' with '" + aMask.getPattern () + "' to " + ret.getClass ().getName ());
return TypeConverter.convert (ret, ZonedDateTime.class);
}
catch (final DateTimeParseException ex)
{
if (LOGGER.isDebugEnabled ())
LOGGER.debug ("Failed to parse '" + sDate + "' with '" + aMask.getPattern () + "': " + ex.getMessage ());
}
}
return null;
}
/**
* Extract the time zone from the passed string. UTC and GMT are supported.
*
* @param sDate
* The date string.
* @return A non-null {@link WithZoneId}, where the remaining
* string to be parsed (never null) and and the extracted
* time zone (may be null) are contained.
*/
@Nonnull
public static WithZoneId extractDateTimeZone (@Nonnull final String sDate)
{
ValueEnforcer.notNull (sDate, "Date");
final int nDateLen = sDate.length ();
for (final PDTZoneID aSupp : PDTZoneID.getDefaultZoneIDs ())
{
final String sDTZ = aSupp.getZoneIDString ();
if (sDate.endsWith (" " + sDTZ))
return new WithZoneId (sDate.substring (0, nDateLen - (1 + sDTZ.length ())), aSupp.getZoneID ());
if (sDate.endsWith (sDTZ))
return new WithZoneId (sDate.substring (0, nDateLen - sDTZ.length ()), aSupp.getZoneID ());
}
return new WithZoneId (sDate, null);
}
/**
* Parses a Date out of a String with a date in RFC822 format.
* It parsers the following formats:
*
* - "EEE, dd MMM uuuu HH:mm:ss z"
* - "EEE, dd MMM uuuu HH:mm z"
* - "EEE, dd MMM uu HH:mm:ss z"
* - "EEE, dd MMM uu HH:mm z"
* - "dd MMM uuuu HH:mm:ss z"
* - "dd MMM uuuu HH:mm z"
* - "dd MMM uu HH:mm:ss z"
* - "dd MMM uu HH:mm z"
*
*
* Refer to the java.text.SimpleDateFormat javadocs for details on the format
* of each element.
*
*
* @param sDate
* string to parse for a date. May be null.
* @return the Date represented by the given RFC822 string. It returns
* null if it was not possible to parse the given string into a
* {@link ZonedDateTime} or if the passed {@link String} was
* null.
*/
@Nullable
public static ZonedDateTime getDateTimeFromRFC822 (@Nullable final String sDate)
{
if (StringHelper.hasNoText (sDate))
return null;
final WithZoneId aPair = extractDateTimeZone (sDate.trim ());
return parseZonedDateTimeUsingMask (RFC822_MASKS, aPair.getString (), aPair.getZoneId ());
}
/**
* Parses a Date out of a String with a date in W3C date-time format.
* It parsers the following formats:
*
* - "uuuu-MM-dd'T'HH:mm:ssz"
* - "uuuu-MM-dd'T'HH:mmz"
* - "uuuu-MM-dd"
* - "uuuu-MM"
* - "uuuu"
*
*
* Refer to the java.text.SimpleDateFormat javadocs for details on the format
* of each element.
*
*
* @param sDate
* string to parse for a date. May be null.
* @return the Date represented by the given W3C date-time string. It returns
* null if it was not possible to parse the given string into a
* {@link ZonedDateTime} or if the input string was null.
*/
@Nullable
public static OffsetDateTime getDateTimeFromW3C (@Nullable final String sDate)
{
if (StringHelper.hasNoText (sDate))
return null;
return parseOffsetDateTimeUsingMask (W3CDATETIME_MASKS, sDate.trim ());
}
/**
* Parses a Date out of a String with a date in W3C date-time format or in a
* RFC822 format.
*
* @param sDate
* string to parse for a date.
* @return the Date represented by the given W3C date-time string. It returns
* null if it was not possible to parse the given string into a
* Date.
*/
@Nullable
public static ZonedDateTime getDateTimeFromW3COrRFC822 (@Nullable final String sDate)
{
final OffsetDateTime aDateTime = getDateTimeFromW3C (sDate);
if (aDateTime != null)
return aDateTime.toZonedDateTime ();
return getDateTimeFromRFC822 (sDate);
}
/**
* Parses a Date out of a String with a date in W3C date-time format or in a
* RFC822 format.
*
* @param sDate
* string to parse for a date.
* @return the Date represented by the given W3C date-time string. It returns
* null if it was not possible to parse the given string into a
* Date.
*/
@Nullable
public static LocalDateTime getLocalDateTimeFromW3COrRFC822 (@Nullable final String sDate)
{
final ZonedDateTime aDateTime = getDateTimeFromW3COrRFC822 (sDate);
return aDateTime == null ? null : aDateTime.toLocalDateTime ();
}
/**
* create a RFC822 representation of a date.
*
* @param aDateTime
* Date to print. May be null.
* @return the RFC822 represented by the given Date. null if the
* parameter is null.
*/
@Nullable
public static String getAsStringRFC822 (@Nullable final ZonedDateTime aDateTime)
{
if (aDateTime == null)
return null;
return PDTFormatter.getForPattern (FORMAT_RFC822, LOCALE_TO_USE).format (aDateTime);
}
/**
* create a RFC822 representation of a date.
*
* @param aDateTime
* Date to print. May be null.
* @return the RFC822 represented by the given Date. null if the
* parameter is null.
*/
@Nullable
public static String getAsStringRFC822 (@Nullable final OffsetDateTime aDateTime)
{
if (aDateTime == null)
return null;
return getAsStringRFC822 (aDateTime.toZonedDateTime ());
}
/**
* create a RFC822 representation of a date time using UTC date time zone.
*
* @param aDateTime
* Date to print. May be null.
* @return the RFC822 represented by the given Date. null if the
* parameter is null.
*/
@Nullable
public static String getAsStringRFC822 (@Nullable final LocalDateTime aDateTime)
{
if (aDateTime == null)
return null;
return getAsStringRFC822 (aDateTime.atOffset (ZoneOffset.UTC));
}
/**
* create a W3C Date Time representation of a date time using UTC date time
* zone.
*
* @param aDateTime
* Date to print. May not be null.
* @return the W3C Date Time represented by the given Date.
*/
@Nullable
public static String getAsStringW3C (@Nullable final ZonedDateTime aDateTime)
{
if (aDateTime == null)
return null;
final DateTimeFormatter aFormatter = PDTFormatter.getForPattern (FORMAT_W3C, LOCALE_TO_USE);
return aFormatter.format (aDateTime);
}
/**
* create a W3C Date Time representation of a date time using UTC date time
* zone.
*
* @param aDateTime
* Date to print. May not be null.
* @return the W3C Date Time represented by the given Date.
*/
@Nullable
public static String getAsStringW3C (@Nullable final OffsetDateTime aDateTime)
{
if (aDateTime == null)
return null;
return getAsStringW3C (aDateTime.toZonedDateTime ());
}
/**
* create a W3C Date Time representation of a date.
*
* @param aDateTime
* Date to print. May not be null.
* @return the W3C Date Time represented by the given Date.
*/
@Nullable
public static String getAsStringW3C (@Nullable final LocalDateTime aDateTime)
{
if (aDateTime == null)
return null;
return getAsStringW3C (aDateTime.atOffset (ZoneOffset.UTC));
}
/**
* @return The current date time formatted using RFC 822
*/
@Nonnull
public static String getCurrentDateTimeAsStringRFC822 ()
{
// Important to use date time zone GMT as this is what the standard
// printer emits!
// Use no milliseconds as the standard printer does not print them!
final ZonedDateTime aNow = ZonedDateTime.now (Clock.systemUTC ()).withNano (0);
return getAsStringRFC822 (aNow);
}
/**
* @return The current date time formatted using W3C format
*/
@Nonnull
public static String getCurrentDateTimeAsStringW3C ()
{
// Use no milli seconds as the standard printer does not print them!
final ZonedDateTime aNow = PDTFactory.getCurrentZonedDateTime ().withNano (0);
return getAsStringW3C (aNow);
}
public static final DateTimeFormatter XSD_TIME;
public static final DateTimeFormatter XSD_DATE;
public static final DateTimeFormatter XSD_DATE_TIME;
static
{
// From the XSD spec:
// hh ':' mm ':' ss ('.' s+)? (zzzzzz)?
XSD_TIME = new DateTimeFormatterBuilder ().parseCaseInsensitive ()
.appendValue (HOUR_OF_DAY, 2)
.appendLiteral (':')
.appendValue (MINUTE_OF_HOUR, 2)
.optionalStart ()
.appendLiteral (':')
.appendValue (SECOND_OF_MINUTE, 2)
.optionalStart ()
/*
* This is different compared to
* ISO_LOCAL_TIME. The maximum is
* unbounded, but we are limited
* to 9 here
*/
.appendFraction (MILLI_OF_SECOND, 0, 9, true)
.optionalEnd ()
// Timezone can occur without
// milliseconds
.optionalStart ()
.appendOffsetId ()
.optionalStart ()
.appendLiteral ('[')
.parseCaseSensitive ()
.appendZoneRegionId ()
.appendLiteral (']')
.toFormatter (Locale.getDefault (Locale.Category.FORMAT))
.withResolverStyle (ResolverStyle.STRICT)
.withChronology (IsoChronology.INSTANCE);
// From the XSD spec:
// '-'? yyyy '-' mm '-' dd zzzzzz?
XSD_DATE = new DateTimeFormatterBuilder ().appendValue (YEAR, 4, 10, SignStyle.EXCEEDS_PAD)
.appendLiteral ('-')
.appendValue (MONTH_OF_YEAR, 2)
.appendLiteral ('-')
.appendValue (DAY_OF_MONTH, 2)
// Timezone is optional
.optionalStart ()
.appendOffsetId ()
.optionalStart ()
.appendLiteral ('[')
.parseCaseSensitive ()
.appendZoneRegionId ()
.appendLiteral (']')
.toFormatter (Locale.getDefault (Locale.Category.FORMAT))
.withResolverStyle (ResolverStyle.STRICT)
.withChronology (IsoChronology.INSTANCE);
XSD_DATE_TIME = new DateTimeFormatterBuilder ().parseCaseInsensitive ()
.append (DateTimeFormatter.ISO_LOCAL_DATE)
.appendLiteral ('T')
.append (XSD_TIME)
.toFormatter (Locale.getDefault (Locale.Category.FORMAT))
.withResolverStyle (ResolverStyle.STRICT)
.withChronology (IsoChronology.INSTANCE);
}
@Nonnull
public static DateTimeFormatter getXSDFormatterDateTime (@Nullable final ZoneId aOverrideZoneID)
{
DateTimeFormatter ret = XSD_DATE_TIME;
if (aOverrideZoneID != null)
ret = ret.withZone (aOverrideZoneID);
return ret;
}
@Nullable
public static LocalDateTime getLocalDateTimeFromXSD (@Nullable final String sValue)
{
// For LocalDateTime always use the default chronology
return PDTFromString.getLocalDateTimeFromString (sValue, getXSDFormatterDateTime (ZoneOffset.UTC));
}
@Nullable
public static String getAsStringXSD (@Nullable final LocalDateTime aLDT)
{
// For LocalDateTime always use the default zone ID
return aLDT == null ? null : getXSDFormatterDateTime (PDTConfig.getDefaultZoneId ()).format (aLDT);
}
@Nullable
public static ZonedDateTime getZonedDateTimeFromXSD (@Nullable final String sValue)
{
// No override zone ID is needed
return getZonedDateTimeFromXSD (sValue, null);
}
@Nullable
public static ZonedDateTime getZonedDateTimeFromXSD (@Nullable final String sValue, @Nullable final ZoneId aZoneID)
{
return PDTFromString.getZonedDateTimeFromString (sValue, getXSDFormatterDateTime (aZoneID));
}
@Nullable
public static String getAsStringXSD (@Nullable final ZonedDateTime aZDT)
{
return aZDT == null ? null : getAsStringXSD (aZDT.getZone (), aZDT);
}
@Nullable
public static String getAsStringXSD (@Nonnull final ZoneId aZoneID, @Nullable final ZonedDateTime aZDT)
{
return aZDT == null ? null : getXSDFormatterDateTime (aZoneID).format (aZDT);
}
@Nullable
public static OffsetDateTime getOffsetDateTimeFromXSD (@Nullable final String sValue)
{
return PDTFromString.getOffsetDateTimeFromString (sValue, getXSDFormatterDateTime (null));
}
@Nullable
public static String getAsStringXSD (@Nullable final OffsetDateTime aODT)
{
return aODT == null ? null : getXSDFormatterDateTime (null).format (aODT);
}
@Nullable
public static XMLOffsetDateTime getXMLOffsetDateTimeFromXSD (@Nullable final String sValue)
{
XMLOffsetDateTime ret = PDTFromString.getXMLOffsetDateTimeFromString (sValue, getXSDFormatterDateTime (null));
if (ret == null && sValue != null)
{
// XMLOffsetDateTime is also possible if no zone offset is present.
// Check if this would be a valid LocalDateTime and use no offset as
// fallback
final LocalDateTime aLDT = getLocalDateTimeFromXSD (sValue);
if (aLDT != null)
ret = XMLOffsetDateTime.of (aLDT);
}
return ret;
}
@Nullable
public static String getAsStringXSD (@Nullable final XMLOffsetDateTime aODT)
{
if (aODT == null)
return null;
if (!aODT.hasOffset ())
{
// Required for Java 9+
return getAsStringXSD (aODT.toLocalDateTime ());
}
return getXSDFormatterDateTime (null).format (aODT);
}
@Nonnull
public static DateTimeFormatter getXSDFormatterDate ()
{
return XSD_DATE;
}
@Nullable
public static LocalDate getLocalDateFromXSD (@Nullable final String sValue)
{
return PDTFromString.getLocalDateFromString (sValue, getXSDFormatterDate ());
}
@Nullable
public static String getAsStringXSD (@Nullable final LocalDate aLD)
{
return aLD == null ? null : getXSDFormatterDate ().format (aLD);
}
@Nullable
public static OffsetDate getOffsetDateFromXSD (@Nullable final String sValue)
{
return PDTFromString.getOffsetDateFromString (sValue, getXSDFormatterDate ());
}
@Nullable
public static String getAsStringXSD (@Nullable final OffsetDate aOD)
{
return aOD == null ? null : getXSDFormatterDate ().format (aOD);
}
@Nullable
public static XMLOffsetDate getXMLOffsetDateFromXSD (@Nullable final String sValue)
{
XMLOffsetDate ret = PDTFromString.getXMLOffsetDateFromString (sValue, getXSDFormatterDate ());
if (ret == null && sValue != null)
{
// XMLOffsetDate is also possible if no zone offset is present.
// Check if this would be a valid LocalDate and use no zone offset
final LocalDate aLD = getLocalDateFromXSD (sValue);
if (aLD != null)
ret = XMLOffsetDate.of (aLD);
}
return ret;
}
@Nullable
public static String getAsStringXSD (@Nullable final XMLOffsetDate aOD)
{
if (aOD == null)
return null;
if (!aOD.hasOffset ())
{
// Required for Java 9+
return getAsStringXSD (aOD.toLocalDate ());
}
return getXSDFormatterDate ().format (aOD);
}
@Nonnull
public static DateTimeFormatter getXSDFormatterTime ()
{
return XSD_TIME;
}
@Nullable
public static LocalTime getLocalTimeFromXSD (@Nullable final String sValue)
{
return PDTFromString.getLocalTimeFromString (sValue, getXSDFormatterTime ());
}
@Nullable
public static String getAsStringXSD (@Nullable final LocalTime aLT)
{
return aLT == null ? null : getXSDFormatterTime ().format (aLT);
}
@Nullable
public static OffsetTime getOffsetTimeFromXSD (@Nullable final String sValue)
{
return PDTFromString.getOffsetTimeFromString (sValue, getXSDFormatterTime ());
}
@Nullable
public static String getAsStringXSD (@Nullable final OffsetTime aOT)
{
return aOT == null ? null : getXSDFormatterTime ().format (aOT);
}
@Nullable
public static XMLOffsetTime getXMLOffsetTimeFromXSD (@Nullable final String sValue)
{
XMLOffsetTime ret = PDTFromString.getXMLOffsetTimeFromString (sValue, getXSDFormatterTime ());
if (ret == null && sValue != null)
{
// XMLOffsetTime is only possible if a zone offset is present.
// Check if this would be a valid LocalTime and use no Zone ID
final LocalTime aLT = getLocalTimeFromXSD (sValue);
if (aLT != null)
ret = XMLOffsetTime.of (aLT);
}
return ret;
}
@Nullable
public static String getAsStringXSD (@Nullable final XMLOffsetTime aOT)
{
if (aOT == null)
return null;
if (!aOT.hasOffset ())
{
// Required for Java 9+
return getAsStringXSD (aOT.toLocalTime ());
}
return getXSDFormatterTime ().format (aOT);
}
}