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Java library for interacting with the Digipost UserAgreements API

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/**
 * Copyright (C) Posten Norge AS
 *
 * 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 no.digipost.api.useragreements.client.xml;

import javax.xml.bind.DatatypeConverter;
import javax.xml.bind.annotation.adapters.XmlAdapter;

import java.time.LocalDate;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;

public class DateXmlAdapter extends XmlAdapter {

	@Override
	public LocalDate unmarshal(final String value) {
		Calendar parsed = DatatypeConverter.parseDate(value);
		ZoneId zoneId = parsed.getTimeZone().toZoneId();
		return ZonedDateTime.ofInstant(parsed.toInstant(), zoneId).toLocalDate();
	}

	@Override
	public String marshal(final LocalDate date) {
		return DateTimeFormatter.ISO_LOCAL_DATE.format(date);
	}
}