2016-06-26 11:38:41 +02:00
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/*
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* Copyright 2013 Martin Smock <smock.martin@gmail.com>
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2018-05-28 11:29:59 +02:00
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*
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2016-06-26 11:38:41 +02:00
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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2018-05-28 11:29:59 +02:00
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*
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2016-06-26 11:38:41 +02:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2018-05-28 11:29:59 +02:00
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*
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2016-06-26 11:38:41 +02:00
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package li.strolch.utils.iso8601;
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2018-05-28 11:29:59 +02:00
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import java.time.ZoneId;
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2018-10-15 10:23:19 +02:00
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import java.time.ZoneOffset;
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2018-05-28 11:29:59 +02:00
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import java.time.ZonedDateTime;
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import java.time.format.DateTimeFormatter;
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2016-06-26 11:38:41 +02:00
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import java.util.Date;
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2018-05-28 11:29:59 +02:00
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import li.strolch.utils.helper.StringHelper;
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2016-06-26 11:38:41 +02:00
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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2016-09-22 15:26:32 +02:00
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* @author Martin Smock <smock.martin@gmail.com>
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2016-06-26 11:38:41 +02:00
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*/
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@SuppressWarnings("nls")
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public class ISO8601 implements DateFormat {
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private static final Logger logger = LoggerFactory.getLogger(ISO8601.class);
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2019-03-27 20:56:18 +01:00
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public static final Date EMPTY_VALUE = parseToDate("-");
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2019-07-03 20:36:37 +02:00
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public static final ZonedDateTime EMPTY_VALUE_ZONED_DATE = ZonedDateTime
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.ofInstant(EMPTY_VALUE.toInstant(), ZoneId.systemDefault());
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2019-03-27 20:56:18 +01:00
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2016-06-26 11:38:41 +02:00
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@Override
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public String format(long timePoint) {
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if (timePoint == Long.MAX_VALUE || timePoint == Long.MIN_VALUE)
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return "-";
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try {
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Date date = new Date();
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date.setTime(timePoint);
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2018-05-28 11:29:59 +02:00
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return format(date);
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2016-06-26 11:38:41 +02:00
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} catch (Exception e) {
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logger.error(e.getMessage(), e);
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return null;
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}
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}
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@Override
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public String format(Date date) {
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return toString(date);
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2016-06-26 11:38:41 +02:00
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}
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2018-10-15 10:23:19 +02:00
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@Override
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public long parseLong(String s) {
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return parse(s).getTime();
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2018-05-28 11:29:59 +02:00
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}
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2016-06-26 11:38:41 +02:00
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@Override
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public Date parse(String s) {
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2018-10-15 10:23:19 +02:00
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return parseToDate(s);
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}
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public static ZonedDateTime parseToZdt(String s) {
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2016-06-26 11:38:41 +02:00
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if (StringHelper.isEmpty(s)) {
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String msg = "An empty value can not pe parsed to a date!";
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throw new IllegalArgumentException(msg);
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}
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2018-10-15 10:23:19 +02:00
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if (s.equals("-"))
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return ZonedDateTime.of(1970, 1, 1, 0, 0, 0, 0, ZoneOffset.UTC);
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return ZonedDateTime.parse(s, DateTimeFormatter.ISO_OFFSET_DATE_TIME.withZone(ZoneId.systemDefault()));
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}
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public static Date parseToDate(String s) {
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return Date.from(parseToZdt(s).toInstant());
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}
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2016-06-26 11:38:41 +02:00
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2018-10-15 10:23:19 +02:00
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public static String toString(ZonedDateTime zonedDateTime) {
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return DateTimeFormatter.ISO_OFFSET_DATE_TIME.withZone(ZoneId.systemDefault()).format(zonedDateTime);
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}
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public static String toString(Date date) {
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return DateTimeFormatter.ISO_OFFSET_DATE_TIME.withZone(ZoneId.systemDefault()).format(date.toInstant());
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}
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public static void main(String[] args) {
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System.out.println(toString(ISO8601.parseToZdt("-")));
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2016-06-26 11:38:41 +02:00
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}
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}
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