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Various jaxb support classes: XmlAdapters for core java classes

There is a newer version: 1.36

/*
 * Copyright 2016 Bystrobank
 *
 * 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 ru.ilb.common.jaxb.adapters;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.xml.bind.DatatypeConverter;
import javax.xml.bind.annotation.adapters.XmlAdapter;

public class DateXmlAdapter extends XmlAdapter {

    private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd");

    @Override
    public Date unmarshal(String value) {
        if (value == null || value.length() == 0) {
            return null;
        }
        return DatatypeConverter.parseDate(value).getTime();
    }

    @Override
    public String marshal(Date value) {
        if (value == null) {
            return null;
        }
        return DATE_FORMAT.format(value);
    }

}