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/*
 *  Copyright 2001-2009 Stephen Colebourne
 *
 *  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 org.joda.time.format;

import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

import org.joda.time.DateTimeFieldType;

/**
 * Factory that creates instances of DateTimeFormatter based on the ISO8601 standard.
 * 

* Date-time formatting is performed by the {@link DateTimeFormatter} class. * Three classes provide factory methods to create formatters, and this is one. * The others are {@link DateTimeFormat} and {@link DateTimeFormatterBuilder}. *

* ISO8601 is the international standard for data interchange. It defines a * framework, rather than an absolute standard. As a result this provider has a * number of methods that represent common uses of the framework. The most common * formats are {@link #date() date}, {@link #time() time}, and {@link #dateTime() dateTime}. *

* For example, to format a date time in ISO format: *

 * DateTime dt = new DateTime();
 * DateTimeFormatter fmt = ISODateTimeFormat.dateTime();
 * String str = fmt.print(dt);
 * 
*

* Note that these formatters mostly follow the ISO8601 standard for printing. * For parsing, the formatters are more lenient and allow formats that are not * in strict compliance with the standard. *

* It is important to understand that these formatters are not linked to * the ISOChronology. These formatters may be used with any * chronology, however there may be certain side effects with more unusual * chronologies. For example, the ISO formatters rely on dayOfWeek being * single digit, dayOfMonth being two digit and dayOfYear being three digit. * A chronology with a ten day week would thus cause issues. However, in * general, it is safe to use these formatters with other chronologies. *

* ISODateTimeFormat is thread-safe and immutable, and the formatters it * returns are as well. * * @author Brian S O'Neill * @since 1.0 * @see DateTimeFormat * @see DateTimeFormatterBuilder */ public class ISODateTimeFormat { /** * Constructor. * * @since 1.1 (previously private) */ protected ISODateTimeFormat() { super(); } //----------------------------------------------------------------------- /** * Returns a formatter that outputs only those fields specified. *

* This method examines the fields provided and returns an ISO-style * formatter that best fits. This can be useful for outputting * less-common ISO styles, such as YearMonth (YYYY-MM) or MonthDay (--MM-DD). *

* The list provided may have overlapping fields, such as dayOfWeek and * dayOfMonth. In this case, the style is chosen based on the following * list, thus in the example, the calendar style is chosen as dayOfMonth * is higher in priority than dayOfWeek: *

    *
  • monthOfYear - calendar date style *
  • dayOfYear - ordinal date style *
  • weekOfWeekYear - week date style *
  • dayOfMonth - calendar date style *
  • dayOfWeek - week date style *
  • year *
  • weekyear *
* The supported formats are: *
     * Extended      Basic       Fields
     * 2005-03-25    20050325    year/monthOfYear/dayOfMonth
     * 2005-03       2005-03     year/monthOfYear
     * 2005--25      2005--25    year/dayOfMonth *
     * 2005          2005        year
     * --03-25       --0325      monthOfYear/dayOfMonth
     * --03          --03        monthOfYear
     * ---03         ---03       dayOfMonth
     * 2005-084      2005084     year/dayOfYear
     * -084          -084        dayOfYear
     * 2005-W12-5    2005W125    weekyear/weekOfWeekyear/dayOfWeek
     * 2005-W-5      2005W-5     weekyear/dayOfWeek *
     * 2005-W12      2005W12     weekyear/weekOfWeekyear
     * -W12-5        -W125       weekOfWeekyear/dayOfWeek
     * -W12          -W12        weekOfWeekyear
     * -W-5          -W-5        dayOfWeek
     * 10:20:30.040  102030.040  hour/minute/second/milli
     * 10:20:30      102030      hour/minute/second
     * 10:20         1020        hour/minute
     * 10            10          hour
     * -20:30.040    -2030.040   minute/second/milli
     * -20:30        -2030       minute/second
     * -20           -20         minute
     * --30.040      --30.040    second/milli
     * --30          --30        second
     * ---.040       ---.040     milli *
     * 10-30.040     10-30.040   hour/second/milli *
     * 10:20-.040    1020-.040   hour/minute/milli *
     * 10-30         10-30       hour/second *
     * 10--.040      10--.040    hour/milli *
     * -20-.040      -20-.040    minute/milli *
     *   plus datetime formats like {date}T{time}
     * 
* * indicates that this is not an official ISO format and can be excluded * by passing in strictISO as true. *

* This method can side effect the input collection of fields. * If the input collection is modifiable, then each field that was added to * the formatter will be removed from the collection, including any duplicates. * If the input collection is unmodifiable then no side effect occurs. *

* This side effect processing is useful if you need to know whether all * the fields were converted into the formatter or not. To achieve this, * pass in a modifiable list, and check that it is empty on exit. * * @param fields the fields to get a formatter for, not null, * updated by the method call unless unmodifiable, * removing those fields built in the formatter * @param extended true to use the extended format (with separators) * @param strictISO true to stick exactly to ISO8601, false to include additional formats * @return a suitable formatter * @throws IllegalArgumentException if there is no format for the fields * @since 1.1 */ public static DateTimeFormatter forFields( Collection fields, boolean extended, boolean strictISO) { if (fields == null || fields.size() == 0) { throw new IllegalArgumentException("The fields must not be null or empty"); } Set workingFields = new HashSet(fields); int inputSize = workingFields.size(); boolean reducedPrec = false; DateTimeFormatterBuilder bld = new DateTimeFormatterBuilder(); // date if (workingFields.contains(DateTimeFieldType.monthOfYear())) { reducedPrec = dateByMonth(bld, workingFields, extended, strictISO); } else if (workingFields.contains(DateTimeFieldType.dayOfYear())) { reducedPrec = dateByOrdinal(bld, workingFields, extended, strictISO); } else if (workingFields.contains(DateTimeFieldType.weekOfWeekyear())) { reducedPrec = dateByWeek(bld, workingFields, extended, strictISO); } else if (workingFields.contains(DateTimeFieldType.dayOfMonth())) { reducedPrec = dateByMonth(bld, workingFields, extended, strictISO); } else if (workingFields.contains(DateTimeFieldType.dayOfWeek())) { reducedPrec = dateByWeek(bld, workingFields, extended, strictISO); } else if (workingFields.remove(DateTimeFieldType.year())) { bld.append(Constants.ye); reducedPrec = true; } else if (workingFields.remove(DateTimeFieldType.weekyear())) { bld.append(Constants.we); reducedPrec = true; } boolean datePresent = (workingFields.size() < inputSize); // time time(bld, workingFields, extended, strictISO, reducedPrec, datePresent); // result if (bld.canBuildFormatter() == false) { throw new IllegalArgumentException("No valid format for fields: " + fields); } // side effect the input collection to indicate the processed fields // handling unmodifiable collections with no side effect try { fields.retainAll(workingFields); } catch (UnsupportedOperationException ex) { // ignore, so we can handle unmodifiable collections } return bld.toFormatter(); } //----------------------------------------------------------------------- /** * Creates a date using the calendar date format. * Specification reference: 5.2.1. * * @param bld the builder * @param fields the fields * @param extended true to use extended format * @param strictISO true to only allow ISO formats * @return true if reduced precision * @since 1.1 */ private static boolean dateByMonth( DateTimeFormatterBuilder bld, Collection fields, boolean extended, boolean strictISO) { boolean reducedPrec = false; if (fields.remove(DateTimeFieldType.year())) { bld.append(Constants.ye); if (fields.remove(DateTimeFieldType.monthOfYear())) { if (fields.remove(DateTimeFieldType.dayOfMonth())) { // YYYY-MM-DD/YYYYMMDD appendSeparator(bld, extended); bld.appendMonthOfYear(2); appendSeparator(bld, extended); bld.appendDayOfMonth(2); } else { // YYYY-MM/YYYY-MM bld.appendLiteral('-'); bld.appendMonthOfYear(2); reducedPrec = true; } } else { if (fields.remove(DateTimeFieldType.dayOfMonth())) { // YYYY--DD/YYYY--DD (non-iso) checkNotStrictISO(fields, strictISO); bld.appendLiteral('-'); bld.appendLiteral('-'); bld.appendDayOfMonth(2); } else { // YYYY/YYYY reducedPrec = true; } } } else if (fields.remove(DateTimeFieldType.monthOfYear())) { bld.appendLiteral('-'); bld.appendLiteral('-'); bld.appendMonthOfYear(2); if (fields.remove(DateTimeFieldType.dayOfMonth())) { // --MM-DD/--MMDD appendSeparator(bld, extended); bld.appendDayOfMonth(2); } else { // --MM/--MM reducedPrec = true; } } else if (fields.remove(DateTimeFieldType.dayOfMonth())) { // ---DD/---DD bld.appendLiteral('-'); bld.appendLiteral('-'); bld.appendLiteral('-'); bld.appendDayOfMonth(2); } return reducedPrec; } //----------------------------------------------------------------------- /** * Creates a date using the ordinal date format. * Specification reference: 5.2.2. * * @param bld the builder * @param fields the fields * @param extended true to use extended format * @param strictISO true to only allow ISO formats * @since 1.1 */ private static boolean dateByOrdinal( DateTimeFormatterBuilder bld, Collection fields, boolean extended, boolean strictISO) { boolean reducedPrec = false; if (fields.remove(DateTimeFieldType.year())) { bld.append(Constants.ye); if (fields.remove(DateTimeFieldType.dayOfYear())) { // YYYY-DDD/YYYYDDD appendSeparator(bld, extended); bld.appendDayOfYear(3); } else { // YYYY/YYYY reducedPrec = true; } } else if (fields.remove(DateTimeFieldType.dayOfYear())) { // -DDD/-DDD bld.appendLiteral('-'); bld.appendDayOfYear(3); } return reducedPrec; } //----------------------------------------------------------------------- /** * Creates a date using the calendar date format. * Specification reference: 5.2.3. * * @param bld the builder * @param fields the fields * @param extended true to use extended format * @param strictISO true to only allow ISO formats * @since 1.1 */ private static boolean dateByWeek( DateTimeFormatterBuilder bld, Collection fields, boolean extended, boolean strictISO) { boolean reducedPrec = false; if (fields.remove(DateTimeFieldType.weekyear())) { bld.append(Constants.we); if (fields.remove(DateTimeFieldType.weekOfWeekyear())) { appendSeparator(bld, extended); bld.appendLiteral('W'); bld.appendWeekOfWeekyear(2); if (fields.remove(DateTimeFieldType.dayOfWeek())) { // YYYY-WWW-D/YYYYWWWD appendSeparator(bld, extended); bld.appendDayOfWeek(1); } else { // YYYY-WWW/YYYY-WWW reducedPrec = true; } } else { if (fields.remove(DateTimeFieldType.dayOfWeek())) { // YYYY-W-D/YYYYW-D (non-iso) checkNotStrictISO(fields, strictISO); appendSeparator(bld, extended); bld.appendLiteral('W'); bld.appendLiteral('-'); bld.appendDayOfWeek(1); } else { // YYYY/YYYY reducedPrec = true; } } } else if (fields.remove(DateTimeFieldType.weekOfWeekyear())) { bld.appendLiteral('-'); bld.appendLiteral('W'); bld.appendWeekOfWeekyear(2); if (fields.remove(DateTimeFieldType.dayOfWeek())) { // -WWW-D/-WWWD appendSeparator(bld, extended); bld.appendDayOfWeek(1); } else { // -WWW/-WWW reducedPrec = true; } } else if (fields.remove(DateTimeFieldType.dayOfWeek())) { // -W-D/-W-D bld.appendLiteral('-'); bld.appendLiteral('W'); bld.appendLiteral('-'); bld.appendDayOfWeek(1); } return reducedPrec; } //----------------------------------------------------------------------- /** * Adds the time fields to the builder. * Specification reference: 5.3.1. * * @param bld the builder * @param fields the fields * @param extended whether to use the extended format * @param strictISO whether to be strict * @param reducedPrec whether the date was reduced precision * @param datePresent whether there was a date * @since 1.1 */ private static void time( DateTimeFormatterBuilder bld, Collection fields, boolean extended, boolean strictISO, boolean reducedPrec, boolean datePresent) { boolean hour = fields.remove(DateTimeFieldType.hourOfDay()); boolean minute = fields.remove(DateTimeFieldType.minuteOfHour()); boolean second = fields.remove(DateTimeFieldType.secondOfMinute()); boolean milli = fields.remove(DateTimeFieldType.millisOfSecond()); if (!hour && !minute && !second && !milli) { return; } if (hour || minute || second || milli) { if (strictISO && reducedPrec) { throw new IllegalArgumentException("No valid ISO8601 format for fields because Date was reduced precision: " + fields); } if (datePresent) { bld.appendLiteral('T'); } } if (hour && minute && second || (hour && !second && !milli)) { // OK - HMSm/HMS/HM/H - valid in combination with date } else { if (strictISO && datePresent) { throw new IllegalArgumentException("No valid ISO8601 format for fields because Time was truncated: " + fields); } if (!hour && (minute && second || (minute && !milli) || second)) { // OK - MSm/MS/M/Sm/S - valid ISO formats } else { if (strictISO) { throw new IllegalArgumentException("No valid ISO8601 format for fields: " + fields); } } } if (hour) { bld.appendHourOfDay(2); } else if (minute || second || milli) { bld.appendLiteral('-'); } if (extended && hour && minute) { bld.appendLiteral(':'); } if (minute) { bld.appendMinuteOfHour(2); } else if (second || milli) { bld.appendLiteral('-'); } if (extended && minute && second) { bld.appendLiteral(':'); } if (second) { bld.appendSecondOfMinute(2); } else if (milli) { bld.appendLiteral('-'); } if (milli) { bld.appendLiteral('.'); bld.appendMillisOfSecond(3); } } //----------------------------------------------------------------------- /** * Checks that the iso only flag is not set, throwing an exception if it is. * * @param fields the fields * @param strictISO true if only ISO formats allowed * @since 1.1 */ private static void checkNotStrictISO(Collection fields, boolean strictISO) { if (strictISO) { throw new IllegalArgumentException("No valid ISO8601 format for fields: " + fields); } } /** * Appends the separator if necessary. * * @param bld the builder * @param extended whether to append the separator * @param sep the separator * @since 1.1 */ private static void appendSeparator(DateTimeFormatterBuilder bld, boolean extended) { if (extended) { bld.appendLiteral('-'); } } //----------------------------------------------------------------------- /** * Returns a generic ISO date parser for parsing dates with a possible zone. *

* The returned formatter can only be used for parsing, printing is unsupported. *

* It accepts formats described by the following syntax: *

     * date              = date-element ['T' offset]
     * date-element      = std-date-element | ord-date-element | week-date-element
     * std-date-element  = yyyy ['-' MM ['-' dd]]
     * ord-date-element  = yyyy ['-' DDD]
     * week-date-element = xxxx '-W' ww ['-' e]
     * offset            = 'Z' | (('+' | '-') HH [':' mm [':' ss [('.' | ',') SSS]]])
     * 
*/ public static DateTimeFormatter dateParser() { return Constants.dp; } /** * Returns a generic ISO date parser for parsing local dates. *

* The returned formatter can only be used for parsing, printing is unsupported. *

* This parser is initialised with the local (UTC) time zone. *

* It accepts formats described by the following syntax: *

     * date-element      = std-date-element | ord-date-element | week-date-element
     * std-date-element  = yyyy ['-' MM ['-' dd]]
     * ord-date-element  = yyyy ['-' DDD]
     * week-date-element = xxxx '-W' ww ['-' e]
     * 
* @since 1.3 */ public static DateTimeFormatter localDateParser() { return Constants.ldp; } /** * Returns a generic ISO date parser for parsing dates. *

* The returned formatter can only be used for parsing, printing is unsupported. *

* It accepts formats described by the following syntax: *

     * date-element      = std-date-element | ord-date-element | week-date-element
     * std-date-element  = yyyy ['-' MM ['-' dd]]
     * ord-date-element  = yyyy ['-' DDD]
     * week-date-element = xxxx '-W' ww ['-' e]
     * 
*/ public static DateTimeFormatter dateElementParser() { return Constants.dpe; } /** * Returns a generic ISO time parser for parsing times with a possible zone. *

* The returned formatter can only be used for parsing, printing is unsupported. *

* The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* It accepts formats described by the following syntax: *

     * time           = ['T'] time-element [offset]
     * time-element   = HH [minute-element] | [fraction]
     * minute-element = ':' mm [second-element] | [fraction]
     * second-element = ':' ss [fraction]
     * fraction       = ('.' | ',') digit+
     * offset         = 'Z' | (('+' | '-') HH [':' mm [':' ss [('.' | ',') SSS]]])
     * 
*/ public static DateTimeFormatter timeParser() { return Constants.tp; } /** * Returns a generic ISO time parser for parsing local times. *

* The returned formatter can only be used for parsing, printing is unsupported. *

* This parser is initialised with the local (UTC) time zone. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* It accepts formats described by the following syntax: *

     * time           = ['T'] time-element
     * time-element   = HH [minute-element] | [fraction]
     * minute-element = ':' mm [second-element] | [fraction]
     * second-element = ':' ss [fraction]
     * fraction       = ('.' | ',') digit+
     * 
* @since 1.3 */ public static DateTimeFormatter localTimeParser() { return Constants.ltp; } /** * Returns a generic ISO time parser. *

* The returned formatter can only be used for parsing, printing is unsupported. *

* The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* It accepts formats described by the following syntax: *

     * time-element   = HH [minute-element] | [fraction]
     * minute-element = ':' mm [second-element] | [fraction]
     * second-element = ':' ss [fraction]
     * fraction       = ('.' | ',') digit+
     * 
*/ public static DateTimeFormatter timeElementParser() { return Constants.tpe; } /** * Returns a generic ISO datetime parser which parses either a date or a time or both. *

* The returned formatter can only be used for parsing, printing is unsupported. *

* The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* It accepts formats described by the following syntax: *

     * datetime          = time | date-opt-time
     * time              = 'T' time-element [offset]
     * date-opt-time     = date-element ['T' [time-element] [offset]]
     * date-element      = std-date-element | ord-date-element | week-date-element
     * std-date-element  = yyyy ['-' MM ['-' dd]]
     * ord-date-element  = yyyy ['-' DDD]
     * week-date-element = xxxx '-W' ww ['-' e]
     * time-element      = HH [minute-element] | [fraction]
     * minute-element    = ':' mm [second-element] | [fraction]
     * second-element    = ':' ss [fraction]
     * fraction          = ('.' | ',') digit+
     * offset            = 'Z' | (('+' | '-') HH [':' mm [':' ss [('.' | ',') SSS]]])
     * 
*/ public static DateTimeFormatter dateTimeParser() { return Constants.dtp; } /** * Returns a generic ISO datetime parser where the date is mandatory and the time is optional. *

* The returned formatter can only be used for parsing, printing is unsupported. *

* This parser can parse zoned datetimes. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* It accepts formats described by the following syntax: *

     * date-opt-time     = date-element ['T' [time-element] [offset]]
     * date-element      = std-date-element | ord-date-element | week-date-element
     * std-date-element  = yyyy ['-' MM ['-' dd]]
     * ord-date-element  = yyyy ['-' DDD]
     * week-date-element = xxxx '-W' ww ['-' e]
     * time-element      = HH [minute-element] | [fraction]
     * minute-element    = ':' mm [second-element] | [fraction]
     * second-element    = ':' ss [fraction]
     * fraction          = ('.' | ',') digit+
     * 
* @since 1.3 */ public static DateTimeFormatter dateOptionalTimeParser() { return Constants.dotp; } /** * Returns a generic ISO datetime parser where the date is mandatory and the time is optional. *

* The returned formatter can only be used for parsing, printing is unsupported. *

* This parser only parses local datetimes. * This parser is initialised with the local (UTC) time zone. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* It accepts formats described by the following syntax: *

     * datetime          = date-element ['T' time-element]
     * date-element      = std-date-element | ord-date-element | week-date-element
     * std-date-element  = yyyy ['-' MM ['-' dd]]
     * ord-date-element  = yyyy ['-' DDD]
     * week-date-element = xxxx '-W' ww ['-' e]
     * time-element      = HH [minute-element] | [fraction]
     * minute-element    = ':' mm [second-element] | [fraction]
     * second-element    = ':' ss [fraction]
     * fraction          = ('.' | ',') digit+
     * 
* @since 1.3 */ public static DateTimeFormatter localDateOptionalTimeParser() { return Constants.ldotp; } //----------------------------------------------------------------------- /** * Returns a formatter for a full date as four digit year, two digit month * of year, and two digit day of month (yyyy-MM-dd). *

* The returned formatter prints and parses only this format. * See {@link #dateParser()} for a more flexible parser that accepts different formats. * * @return a formatter for yyyy-MM-dd */ public static DateTimeFormatter date() { return yearMonthDay(); } /** * Returns a formatter for a two digit hour of day, two digit minute of * hour, two digit second of minute, three digit fraction of second, and * time zone offset (HH:mm:ss.SSSZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * See {@link #timeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for HH:mm:ss.SSSZZ */ public static DateTimeFormatter time() { return Constants.t; } /** * Returns a formatter for a two digit hour of day, two digit minute of * hour, two digit second of minute, and time zone offset (HH:mm:ssZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * See {@link #timeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for HH:mm:ssZZ */ public static DateTimeFormatter timeNoMillis() { return Constants.tx; } /** * Returns a formatter for a two digit hour of day, two digit minute of * hour, two digit second of minute, three digit fraction of second, and * time zone offset prefixed by 'T' ('T'HH:mm:ss.SSSZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * See {@link #timeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for 'T'HH:mm:ss.SSSZZ */ public static DateTimeFormatter tTime() { return Constants.tt; } /** * Returns a formatter for a two digit hour of day, two digit minute of * hour, two digit second of minute, and time zone offset prefixed * by 'T' ('T'HH:mm:ssZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * See {@link #timeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for 'T'HH:mm:ssZZ */ public static DateTimeFormatter tTimeNoMillis() { return Constants.ttx; } /** * Returns a formatter that combines a full date and time, separated by a 'T' * (yyyy-MM-dd'T'HH:mm:ss.SSSZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * See {@link #dateTimeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for yyyy-MM-dd'T'HH:mm:ss.SSSZZ */ public static DateTimeFormatter dateTime() { return Constants.dt; } /** * Returns a formatter that combines a full date and time without millis, * separated by a 'T' (yyyy-MM-dd'T'HH:mm:ssZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * See {@link #dateTimeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for yyyy-MM-dd'T'HH:mm:ssZZ */ public static DateTimeFormatter dateTimeNoMillis() { return Constants.dtx; } /** * Returns a formatter for a full ordinal date, using a four * digit year and three digit dayOfYear (yyyy-DDD). *

* The returned formatter prints and parses only this format. * See {@link #dateParser()} for a more flexible parser that accepts different formats. * * @return a formatter for yyyy-DDD * @since 1.1 */ public static DateTimeFormatter ordinalDate() { return Constants.od; } /** * Returns a formatter for a full ordinal date and time, using a four * digit year and three digit dayOfYear (yyyy-DDD'T'HH:mm:ss.SSSZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * See {@link #dateTimeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for yyyy-DDD'T'HH:mm:ss.SSSZZ * @since 1.1 */ public static DateTimeFormatter ordinalDateTime() { return Constants.odt; } /** * Returns a formatter for a full ordinal date and time without millis, * using a four digit year and three digit dayOfYear (yyyy-DDD'T'HH:mm:ssZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * See {@link #dateTimeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for yyyy-DDD'T'HH:mm:ssZZ * @since 1.1 */ public static DateTimeFormatter ordinalDateTimeNoMillis() { return Constants.odtx; } /** * Returns a formatter for a full date as four digit weekyear, two digit * week of weekyear, and one digit day of week (xxxx-'W'ww-e). *

* The returned formatter prints and parses only this format. * See {@link #dateParser()} for a more flexible parser that accepts different formats. * * @return a formatter for xxxx-'W'ww-e */ public static DateTimeFormatter weekDate() { return Constants.wwd; } /** * Returns a formatter that combines a full weekyear date and time, * separated by a 'T' (xxxx-'W'ww-e'T'HH:mm:ss.SSSZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * See {@link #dateTimeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for xxxx-'W'ww-e'T'HH:mm:ss.SSSZZ */ public static DateTimeFormatter weekDateTime() { return Constants.wdt; } /** * Returns a formatter that combines a full weekyear date and time without millis, * separated by a 'T' (xxxx-'W'ww-e'T'HH:mm:ssZZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HH:mm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * See {@link #dateTimeParser()} for a more flexible parser that accepts different formats. * * @return a formatter for xxxx-'W'ww-e'T'HH:mm:ssZZ */ public static DateTimeFormatter weekDateTimeNoMillis() { return Constants.wdtx; } //----------------------------------------------------------------------- /** * Returns a basic formatter for a full date as four digit year, two digit * month of year, and two digit day of month (yyyyMMdd). *

* The returned formatter prints and parses only this format. * * @return a formatter for yyyyMMdd */ public static DateTimeFormatter basicDate() { return Constants.bd; } /** * Returns a basic formatter for a two digit hour of day, two digit minute * of hour, two digit second of minute, three digit millis, and time zone * offset (HHmmss.SSSZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * * @return a formatter for HHmmss.SSSZ */ public static DateTimeFormatter basicTime() { return Constants.bt; } /** * Returns a basic formatter for a two digit hour of day, two digit minute * of hour, two digit second of minute, and time zone offset (HHmmssZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * * @return a formatter for HHmmssZ */ public static DateTimeFormatter basicTimeNoMillis() { return Constants.btx; } /** * Returns a basic formatter for a two digit hour of day, two digit minute * of hour, two digit second of minute, three digit millis, and time zone * offset prefixed by 'T' ('T'HHmmss.SSSZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * * @return a formatter for 'T'HHmmss.SSSZ */ public static DateTimeFormatter basicTTime() { return Constants.btt; } /** * Returns a basic formatter for a two digit hour of day, two digit minute * of hour, two digit second of minute, and time zone offset prefixed by 'T' * ('T'HHmmssZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * * @return a formatter for 'T'HHmmssZ */ public static DateTimeFormatter basicTTimeNoMillis() { return Constants.bttx; } /** * Returns a basic formatter that combines a basic date and time, separated * by a 'T' (yyyyMMdd'T'HHmmss.SSSZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * * @return a formatter for yyyyMMdd'T'HHmmss.SSSZ */ public static DateTimeFormatter basicDateTime() { return Constants.bdt; } /** * Returns a basic formatter that combines a basic date and time without millis, * separated by a 'T' (yyyyMMdd'T'HHmmssZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * * @return a formatter for yyyyMMdd'T'HHmmssZ */ public static DateTimeFormatter basicDateTimeNoMillis() { return Constants.bdtx; } /** * Returns a formatter for a full ordinal date, using a four * digit year and three digit dayOfYear (yyyyDDD). *

* The returned formatter prints and parses only this format. * * @return a formatter for yyyyDDD * @since 1.1 */ public static DateTimeFormatter basicOrdinalDate() { return Constants.bod; } /** * Returns a formatter for a full ordinal date and time, using a four * digit year and three digit dayOfYear (yyyyDDD'T'HHmmss.SSSZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * * @return a formatter for yyyyDDD'T'HHmmss.SSSZ * @since 1.1 */ public static DateTimeFormatter basicOrdinalDateTime() { return Constants.bodt; } /** * Returns a formatter for a full ordinal date and time without millis, * using a four digit year and three digit dayOfYear (yyyyDDD'T'HHmmssZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * * @return a formatter for yyyyDDD'T'HHmmssZ * @since 1.1 */ public static DateTimeFormatter basicOrdinalDateTimeNoMillis() { return Constants.bodtx; } /** * Returns a basic formatter for a full date as four digit weekyear, two * digit week of weekyear, and one digit day of week (xxxx'W'wwe). *

* The returned formatter prints and parses only this format. * * @return a formatter for xxxx'W'wwe */ public static DateTimeFormatter basicWeekDate() { return Constants.bwd; } /** * Returns a basic formatter that combines a basic weekyear date and time, * separated by a 'T' (xxxx'W'wwe'T'HHmmss.SSSZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which includes milliseconds. * * @return a formatter for xxxx'W'wwe'T'HHmmss.SSSZ */ public static DateTimeFormatter basicWeekDateTime() { return Constants.bwdt; } /** * Returns a basic formatter that combines a basic weekyear date and time * without millis, separated by a 'T' (xxxx'W'wwe'T'HHmmssZ). *

* The time zone offset is 'Z' for zero, and of the form '\u00b1HHmm' for non-zero. * The parser is strict by default, thus time string {@code 24:00} cannot be parsed. *

* The returned formatter prints and parses only this format, which excludes milliseconds. * * @return a formatter for xxxx'W'wwe'T'HHmmssZ */ public static DateTimeFormatter basicWeekDateTimeNoMillis() { return Constants.bwdtx; } //----------------------------------------------------------------------- /** * Returns a formatter for a four digit year. (yyyy) * * @return a formatter for yyyy */ public static DateTimeFormatter year() { return Constants.ye; } /** * Returns a formatter for a four digit year and two digit month of * year. (yyyy-MM) * * @return a formatter for yyyy-MM */ public static DateTimeFormatter yearMonth() { return Constants.ym; } /** * Returns a formatter for a four digit year, two digit month of year, and * two digit day of month. (yyyy-MM-dd) * * @return a formatter for yyyy-MM-dd */ public static DateTimeFormatter yearMonthDay() { return Constants.ymd; } /** * Returns a formatter for a four digit weekyear. (xxxx) * * @return a formatter for xxxx */ public static DateTimeFormatter weekyear() { return Constants.we; } /** * Returns a formatter for a four digit weekyear and two digit week of * weekyear. (xxxx-'W'ww) * * @return a formatter for xxxx-'W'ww */ public static DateTimeFormatter weekyearWeek() { return Constants.ww; } /** * Returns a formatter for a four digit weekyear, two digit week of * weekyear, and one digit day of week. (xxxx-'W'ww-e) * * @return a formatter for xxxx-'W'ww-e */ public static DateTimeFormatter weekyearWeekDay() { return Constants.wwd; } /** * Returns a formatter for a two digit hour of day. (HH) * * @return a formatter for HH */ public static DateTimeFormatter hour() { return Constants.hde; } /** * Returns a formatter for a two digit hour of day and two digit minute of * hour. (HH:mm) * * @return a formatter for HH:mm */ public static DateTimeFormatter hourMinute() { return Constants.hm; } /** * Returns a formatter for a two digit hour of day, two digit minute of * hour, and two digit second of minute. (HH:mm:ss) * * @return a formatter for HH:mm:ss */ public static DateTimeFormatter hourMinuteSecond() { return Constants.hms; } /** * Returns a formatter for a two digit hour of day, two digit minute of * hour, two digit second of minute, and three digit fraction of * second (HH:mm:ss.SSS). Parsing will parse up to 3 fractional second * digits. * * @return a formatter for HH:mm:ss.SSS */ public static DateTimeFormatter hourMinuteSecondMillis() { return Constants.hmsl; } /** * Returns a formatter for a two digit hour of day, two digit minute of * hour, two digit second of minute, and three digit fraction of * second (HH:mm:ss.SSS). Parsing will parse up to 9 fractional second * digits, throwing away all except the first three. * * @return a formatter for HH:mm:ss.SSS */ public static DateTimeFormatter hourMinuteSecondFraction() { return Constants.hmsf; } /** * Returns a formatter that combines a full date and two digit hour of * day. (yyyy-MM-dd'T'HH) * * @return a formatter for yyyy-MM-dd'T'HH */ public static DateTimeFormatter dateHour() { return Constants.dh; } /** * Returns a formatter that combines a full date, two digit hour of day, * and two digit minute of hour. (yyyy-MM-dd'T'HH:mm) * * @return a formatter for yyyy-MM-dd'T'HH:mm */ public static DateTimeFormatter dateHourMinute() { return Constants.dhm; } /** * Returns a formatter that combines a full date, two digit hour of day, * two digit minute of hour, and two digit second of * minute. (yyyy-MM-dd'T'HH:mm:ss) * * @return a formatter for yyyy-MM-dd'T'HH:mm:ss */ public static DateTimeFormatter dateHourMinuteSecond() { return Constants.dhms; } /** * Returns a formatter that combines a full date, two digit hour of day, * two digit minute of hour, two digit second of minute, and three digit * fraction of second (yyyy-MM-dd'T'HH:mm:ss.SSS). Parsing will parse up * to 3 fractional second digits. * * @return a formatter for yyyy-MM-dd'T'HH:mm:ss.SSS */ public static DateTimeFormatter dateHourMinuteSecondMillis() { return Constants.dhmsl; } /** * Returns a formatter that combines a full date, two digit hour of day, * two digit minute of hour, two digit second of minute, and three digit * fraction of second (yyyy-MM-dd'T'HH:mm:ss.SSS). Parsing will parse up * to 9 fractional second digits, throwing away all except the first three. * * @return a formatter for yyyy-MM-dd'T'HH:mm:ss.SSS */ public static DateTimeFormatter dateHourMinuteSecondFraction() { return Constants.dhmsf; } //----------------------------------------------------------------------- static final class Constants { private static final DateTimeFormatter ye = yearElement(), // year element (yyyy) mye = monthElement(), // monthOfYear element (-MM) dme = dayOfMonthElement(), // dayOfMonth element (-dd) we = weekyearElement(), // weekyear element (xxxx) wwe = weekElement(), // weekOfWeekyear element (-ww) dwe = dayOfWeekElement(), // dayOfWeek element (-ee) dye = dayOfYearElement(), // dayOfYear element (-DDD) hde = hourElement(), // hourOfDay element (HH) mhe = minuteElement(), // minuteOfHour element (:mm) sme = secondElement(), // secondOfMinute element (:ss) fse = fractionElement(), // fractionOfSecond element (.SSSSSSSSS) ze = offsetElement(), // zone offset element lte = literalTElement(), // literal 'T' element //y, // year (same as year element) ym = yearMonth(), // year month ymd = yearMonthDay(), // year month day //w, // weekyear (same as weekyear element) ww = weekyearWeek(), // weekyear week wwd = weekyearWeekDay(), // weekyear week day //h, // hour (same as hour element) hm = hourMinute(), // hour minute hms = hourMinuteSecond(), // hour minute second hmsl = hourMinuteSecondMillis(), // hour minute second millis hmsf = hourMinuteSecondFraction(), // hour minute second fraction dh = dateHour(), // date hour dhm = dateHourMinute(), // date hour minute dhms = dateHourMinuteSecond(), // date hour minute second dhmsl = dateHourMinuteSecondMillis(), // date hour minute second millis dhmsf = dateHourMinuteSecondFraction(), // date hour minute second fraction //d, // date (same as ymd) t = time(), // time tx = timeNoMillis(), // time no millis tt = tTime(), // Ttime ttx = tTimeNoMillis(), // Ttime no millis dt = dateTime(), // date time dtx = dateTimeNoMillis(), // date time no millis //wd, // week date (same as wwd) wdt = weekDateTime(), // week date time wdtx = weekDateTimeNoMillis(), // week date time no millis od = ordinalDate(), // ordinal date (same as yd) odt = ordinalDateTime(), // ordinal date time odtx = ordinalDateTimeNoMillis(), // ordinal date time no millis bd = basicDate(), // basic date bt = basicTime(), // basic time btx = basicTimeNoMillis(), // basic time no millis btt = basicTTime(), // basic Ttime bttx = basicTTimeNoMillis(), // basic Ttime no millis bdt = basicDateTime(), // basic date time bdtx = basicDateTimeNoMillis(), // basic date time no millis bod = basicOrdinalDate(), // basic ordinal date bodt = basicOrdinalDateTime(), // basic ordinal date time bodtx = basicOrdinalDateTimeNoMillis(), // basic ordinal date time no millis bwd = basicWeekDate(), // basic week date bwdt = basicWeekDateTime(), // basic week date time bwdtx = basicWeekDateTimeNoMillis(), // basic week date time no millis dpe = dateElementParser(), // date parser element tpe = timeElementParser(), // time parser element dp = dateParser(), // date parser ldp = localDateParser(), // local date parser tp = timeParser(), // time parser ltp = localTimeParser(), // local time parser dtp = dateTimeParser(), // date time parser dotp = dateOptionalTimeParser(), // date optional time parser ldotp = localDateOptionalTimeParser(); // local date optional time parser //----------------------------------------------------------------------- private static DateTimeFormatter dateParser() { if (dp == null) { DateTimeParser tOffset = new DateTimeFormatterBuilder() .appendLiteral('T') .append(offsetElement()).toParser(); return new DateTimeFormatterBuilder() .append(dateElementParser()) .appendOptional(tOffset) .toFormatter(); } return dp; } private static DateTimeFormatter localDateParser() { if (ldp == null) { return dateElementParser().withZoneUTC(); } return ldp; } private static DateTimeFormatter dateElementParser() { if (dpe == null) { return new DateTimeFormatterBuilder() .append(null, new DateTimeParser[] { new DateTimeFormatterBuilder() .append(yearElement()) .appendOptional (new DateTimeFormatterBuilder() .append(monthElement()) .appendOptional(dayOfMonthElement().getParser()) .toParser()) .toParser(), new DateTimeFormatterBuilder() .append(weekyearElement()) .append(weekElement()) .appendOptional(dayOfWeekElement().getParser()) .toParser(), new DateTimeFormatterBuilder() .append(yearElement()) .append(dayOfYearElement()) .toParser() }) .toFormatter(); } return dpe; } private static DateTimeFormatter timeParser() { if (tp == null) { return new DateTimeFormatterBuilder() .appendOptional(literalTElement().getParser()) .append(timeElementParser()) .appendOptional(offsetElement().getParser()) .toFormatter(); } return tp; } private static DateTimeFormatter localTimeParser() { if (ltp == null) { return new DateTimeFormatterBuilder() .appendOptional(literalTElement().getParser()) .append(timeElementParser()) .toFormatter().withZoneUTC(); } return ltp; } private static DateTimeFormatter timeElementParser() { if (tpe == null) { // Decimal point can be either '.' or ',' DateTimeParser decimalPoint = new DateTimeFormatterBuilder() .append(null, new DateTimeParser[] { new DateTimeFormatterBuilder() .appendLiteral('.') .toParser(), new DateTimeFormatterBuilder() .appendLiteral(',') .toParser() }) .toParser(); return new DateTimeFormatterBuilder() // time-element .append(hourElement()) .append (null, new DateTimeParser[] { new DateTimeFormatterBuilder() // minute-element .append(minuteElement()) .append (null, new DateTimeParser[] { new DateTimeFormatterBuilder() // second-element .append(secondElement()) // second fraction .appendOptional(new DateTimeFormatterBuilder() .append(decimalPoint) .appendFractionOfSecond(1, 9) .toParser()) .toParser(), // minute fraction new DateTimeFormatterBuilder() .append(decimalPoint) .appendFractionOfMinute(1, 9) .toParser(), null }) .toParser(), // hour fraction new DateTimeFormatterBuilder() .append(decimalPoint) .appendFractionOfHour(1, 9) .toParser(), null }) .toFormatter(); } return tpe; } private static DateTimeFormatter dateTimeParser() { if (dtp == null) { // This is different from the general time parser in that the 'T' // is required. DateTimeParser time = new DateTimeFormatterBuilder() .appendLiteral('T') .append(timeElementParser()) .appendOptional(offsetElement().getParser()) .toParser(); return new DateTimeFormatterBuilder() .append(null, new DateTimeParser[] {time, dateOptionalTimeParser().getParser()}) .toFormatter(); } return dtp; } private static DateTimeFormatter dateOptionalTimeParser() { if (dotp == null) { DateTimeParser timeOrOffset = new DateTimeFormatterBuilder() .appendLiteral('T') .appendOptional(timeElementParser().getParser()) .appendOptional(offsetElement().getParser()) .toParser(); return new DateTimeFormatterBuilder() .append(dateElementParser()) .appendOptional(timeOrOffset) .toFormatter(); } return dotp; } private static DateTimeFormatter localDateOptionalTimeParser() { if (ldotp == null) { DateTimeParser time = new DateTimeFormatterBuilder() .appendLiteral('T') .append(timeElementParser()) .toParser(); return new DateTimeFormatterBuilder() .append(dateElementParser()) .appendOptional(time) .toFormatter().withZoneUTC(); } return ldotp; } //----------------------------------------------------------------------- private static DateTimeFormatter time() { if (t == null) { return new DateTimeFormatterBuilder() .append(hourMinuteSecondFraction()) .append(offsetElement()) .toFormatter(); } return t; } private static DateTimeFormatter timeNoMillis() { if (tx == null) { return new DateTimeFormatterBuilder() .append(hourMinuteSecond()) .append(offsetElement()) .toFormatter(); } return tx; } private static DateTimeFormatter tTime() { if (tt == null) { return new DateTimeFormatterBuilder() .append(literalTElement()) .append(time()) .toFormatter(); } return tt; } private static DateTimeFormatter tTimeNoMillis() { if (ttx == null) { return new DateTimeFormatterBuilder() .append(literalTElement()) .append(timeNoMillis()) .toFormatter(); } return ttx; } private static DateTimeFormatter dateTime() { if (dt == null) { return new DateTimeFormatterBuilder() .append(date()) .append(tTime()) .toFormatter(); } return dt; } private static DateTimeFormatter dateTimeNoMillis() { if (dtx == null) { return new DateTimeFormatterBuilder() .append(date()) .append(tTimeNoMillis()) .toFormatter(); } return dtx; } private static DateTimeFormatter ordinalDate() { if (od == null) { return new DateTimeFormatterBuilder() .append(yearElement()) .append(dayOfYearElement()) .toFormatter(); } return od; } private static DateTimeFormatter ordinalDateTime() { if (odt == null) { return new DateTimeFormatterBuilder() .append(ordinalDate()) .append(tTime()) .toFormatter(); } return odt; } private static DateTimeFormatter ordinalDateTimeNoMillis() { if (odtx == null) { return new DateTimeFormatterBuilder() .append(ordinalDate()) .append(tTimeNoMillis()) .toFormatter(); } return odtx; } private static DateTimeFormatter weekDateTime() { if (wdt == null) { return new DateTimeFormatterBuilder() .append(weekDate()) .append(tTime()) .toFormatter(); } return wdt; } private static DateTimeFormatter weekDateTimeNoMillis() { if (wdtx == null) { return new DateTimeFormatterBuilder() .append(weekDate()) .append(tTimeNoMillis()) .toFormatter(); } return wdtx; } //----------------------------------------------------------------------- private static DateTimeFormatter basicDate() { if (bd == null) { return new DateTimeFormatterBuilder() .appendYear(4, 4) .appendFixedDecimal(DateTimeFieldType.monthOfYear(), 2) .appendFixedDecimal(DateTimeFieldType.dayOfMonth(), 2) .toFormatter(); } return bd; } private static DateTimeFormatter basicTime() { if (bt == null) { return new DateTimeFormatterBuilder() .appendFixedDecimal(DateTimeFieldType.hourOfDay(), 2) .appendFixedDecimal(DateTimeFieldType.minuteOfHour(), 2) .appendFixedDecimal(DateTimeFieldType.secondOfMinute(), 2) .appendLiteral('.') .appendFractionOfSecond(3, 9) .appendTimeZoneOffset("Z", false, 2, 2) .toFormatter(); } return bt; } private static DateTimeFormatter basicTimeNoMillis() { if (btx == null) { return new DateTimeFormatterBuilder() .appendFixedDecimal(DateTimeFieldType.hourOfDay(), 2) .appendFixedDecimal(DateTimeFieldType.minuteOfHour(), 2) .appendFixedDecimal(DateTimeFieldType.secondOfMinute(), 2) .appendTimeZoneOffset("Z", false, 2, 2) .toFormatter(); } return btx; } private static DateTimeFormatter basicTTime() { if (btt == null) { return new DateTimeFormatterBuilder() .append(literalTElement()) .append(basicTime()) .toFormatter(); } return btt; } private static DateTimeFormatter basicTTimeNoMillis() { if (bttx == null) { return new DateTimeFormatterBuilder() .append(literalTElement()) .append(basicTimeNoMillis()) .toFormatter(); } return bttx; } private static DateTimeFormatter basicDateTime() { if (bdt == null) { return new DateTimeFormatterBuilder() .append(basicDate()) .append(basicTTime()) .toFormatter(); } return bdt; } private static DateTimeFormatter basicDateTimeNoMillis() { if (bdtx == null) { return new DateTimeFormatterBuilder() .append(basicDate()) .append(basicTTimeNoMillis()) .toFormatter(); } return bdtx; } private static DateTimeFormatter basicOrdinalDate() { if (bod == null) { return new DateTimeFormatterBuilder() .appendYear(4, 4) .appendFixedDecimal(DateTimeFieldType.dayOfYear(), 3) .toFormatter(); } return bod; } private static DateTimeFormatter basicOrdinalDateTime() { if (bodt == null) { return new DateTimeFormatterBuilder() .append(basicOrdinalDate()) .append(basicTTime()) .toFormatter(); } return bodt; } private static DateTimeFormatter basicOrdinalDateTimeNoMillis() { if (bodtx == null) { return new DateTimeFormatterBuilder() .append(basicOrdinalDate()) .append(basicTTimeNoMillis()) .toFormatter(); } return bodtx; } private static DateTimeFormatter basicWeekDate() { if (bwd == null) { return new DateTimeFormatterBuilder() .appendWeekyear(4, 4) .appendLiteral('W') .appendFixedDecimal(DateTimeFieldType.weekOfWeekyear(), 2) .appendFixedDecimal(DateTimeFieldType.dayOfWeek(), 1) .toFormatter(); } return bwd; } private static DateTimeFormatter basicWeekDateTime() { if (bwdt == null) { return new DateTimeFormatterBuilder() .append(basicWeekDate()) .append(basicTTime()) .toFormatter(); } return bwdt; } private static DateTimeFormatter basicWeekDateTimeNoMillis() { if (bwdtx == null) { return new DateTimeFormatterBuilder() .append(basicWeekDate()) .append(basicTTimeNoMillis()) .toFormatter(); } return bwdtx; } //----------------------------------------------------------------------- private static DateTimeFormatter yearMonth() { if (ym == null) { return new DateTimeFormatterBuilder() .append(yearElement()) .append(monthElement()) .toFormatter(); } return ym; } private static DateTimeFormatter yearMonthDay() { if (ymd == null) { return new DateTimeFormatterBuilder() .append(yearElement()) .append(monthElement()) .append(dayOfMonthElement()) .toFormatter(); } return ymd; } private static DateTimeFormatter weekyearWeek() { if (ww == null) { return new DateTimeFormatterBuilder() .append(weekyearElement()) .append(weekElement()) .toFormatter(); } return ww; } private static DateTimeFormatter weekyearWeekDay() { if (wwd == null) { return new DateTimeFormatterBuilder() .append(weekyearElement()) .append(weekElement()) .append(dayOfWeekElement()) .toFormatter(); } return wwd; } private static DateTimeFormatter hourMinute() { if (hm == null) { return new DateTimeFormatterBuilder() .append(hourElement()) .append(minuteElement()) .toFormatter(); } return hm; } private static DateTimeFormatter hourMinuteSecond() { if (hms == null) { return new DateTimeFormatterBuilder() .append(hourElement()) .append(minuteElement()) .append(secondElement()) .toFormatter(); } return hms; } private static DateTimeFormatter hourMinuteSecondMillis() { if (hmsl == null) { return new DateTimeFormatterBuilder() .append(hourElement()) .append(minuteElement()) .append(secondElement()) .appendLiteral('.') .appendFractionOfSecond(3, 3) .toFormatter(); } return hmsl; } private static DateTimeFormatter hourMinuteSecondFraction() { if (hmsf == null) { return new DateTimeFormatterBuilder() .append(hourElement()) .append(minuteElement()) .append(secondElement()) .append(fractionElement()) .toFormatter(); } return hmsf; } private static DateTimeFormatter dateHour() { if (dh == null) { return new DateTimeFormatterBuilder() .append(date()) .append(literalTElement()) .append(hour()) .toFormatter(); } return dh; } private static DateTimeFormatter dateHourMinute() { if (dhm == null) { return new DateTimeFormatterBuilder() .append(date()) .append(literalTElement()) .append(hourMinute()) .toFormatter(); } return dhm; } private static DateTimeFormatter dateHourMinuteSecond() { if (dhms == null) { return new DateTimeFormatterBuilder() .append(date()) .append(literalTElement()) .append(hourMinuteSecond()) .toFormatter(); } return dhms; } private static DateTimeFormatter dateHourMinuteSecondMillis() { if (dhmsl == null) { return new DateTimeFormatterBuilder() .append(date()) .append(literalTElement()) .append(hourMinuteSecondMillis()) .toFormatter(); } return dhmsl; } private static DateTimeFormatter dateHourMinuteSecondFraction() { if (dhmsf == null) { return new DateTimeFormatterBuilder() .append(date()) .append(literalTElement()) .append(hourMinuteSecondFraction()) .toFormatter(); } return dhmsf; } //----------------------------------------------------------------------- private static DateTimeFormatter yearElement() { if (ye == null) { return new DateTimeFormatterBuilder() .appendYear(4, 9) .toFormatter(); } return ye; } private static DateTimeFormatter monthElement() { if (mye == null) { return new DateTimeFormatterBuilder() .appendLiteral('-') .appendMonthOfYear(2) .toFormatter(); } return mye; } private static DateTimeFormatter dayOfMonthElement() { if (dme == null) { return new DateTimeFormatterBuilder() .appendLiteral('-') .appendDayOfMonth(2) .toFormatter(); } return dme; } private static DateTimeFormatter weekyearElement() { if (we == null) { return new DateTimeFormatterBuilder() .appendWeekyear(4, 9) .toFormatter(); } return we; } private static DateTimeFormatter weekElement() { if (wwe == null) { return new DateTimeFormatterBuilder() .appendLiteral("-W") .appendWeekOfWeekyear(2) .toFormatter(); } return wwe; } private static DateTimeFormatter dayOfWeekElement() { if (dwe == null) { return new DateTimeFormatterBuilder() .appendLiteral('-') .appendDayOfWeek(1) .toFormatter(); } return dwe; } private static DateTimeFormatter dayOfYearElement() { if (dye == null) { return new DateTimeFormatterBuilder() .appendLiteral('-') .appendDayOfYear(3) .toFormatter(); } return dye; } private static DateTimeFormatter literalTElement() { if (lte == null) { return new DateTimeFormatterBuilder() .appendLiteral('T') .toFormatter(); } return lte; } private static DateTimeFormatter hourElement() { if (hde == null) { return new DateTimeFormatterBuilder() .appendHourOfDay(2) .toFormatter(); } return hde; } private static DateTimeFormatter minuteElement() { if (mhe == null) { return new DateTimeFormatterBuilder() .appendLiteral(':') .appendMinuteOfHour(2) .toFormatter(); } return mhe; } private static DateTimeFormatter secondElement() { if (sme == null) { return new DateTimeFormatterBuilder() .appendLiteral(':') .appendSecondOfMinute(2) .toFormatter(); } return sme; } private static DateTimeFormatter fractionElement() { if (fse == null) { return new DateTimeFormatterBuilder() .appendLiteral('.') // Support parsing up to nanosecond precision even though // those extra digits will be dropped. .appendFractionOfSecond(3, 9) .toFormatter(); } return fse; } private static DateTimeFormatter offsetElement() { if (ze == null) { return new DateTimeFormatterBuilder() .appendTimeZoneOffset("Z", true, 2, 4) .toFormatter(); } return ze; } } }





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