org.eclipse.om2m.commons/src/main/java/org/eclipse/om2m/commons/utils/DateConverter.java

/*******************************************************************************
 * Copyright (c) 2013-2020 LAAS-CNRS (www.laas.fr)
 * 7 Colonel Roche 31077 Toulouse - France
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * Initial Contributors:
 *     Thierry Monteil : Project manager, technical co-manager
 *     Mahdi Ben Alaya : Technical co-manager
 *     Samir Medjiah : Technical co-manager
 *     Khalil Drira : Strategy expert
 *     Guillaume Garzone : Developer
 *     François Aïssaoui : Developer
 *
 * New contributors :
 *******************************************************************************/
package org.eclipse.om2m.commons.utils;

import java.util.Date;
import java.util.GregorianCalendar;

import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Converts {@link XMLGregorianCalendar} to {@link Date} and inverse i.e.
 */

public class DateConverter {
    /** Logger */
    private static Log LOGGER = LogFactory.getLog(DateConverter.class);

    /**
     * Converts java.util.Date to javax.xml.datatype.XMLGregorianCalendar
     * @param date - The Date to convert
     * @return xmlGregorianCalendar object
     */
    public static XMLGregorianCalendar toXMLGregorianCalendar(Date date) {
        GregorianCalendar gregorianCalendar = new GregorianCalendar();
        gregorianCalendar.setTime(date);
        XMLGregorianCalendar xmlGregorianCalendar = null;
        try {
            xmlGregorianCalendar = DatatypeFactory.newInstance()
                    .newXMLGregorianCalendar(gregorianCalendar);
        } catch (DatatypeConfigurationException e) {
            LOGGER.error("Date to XMLGregorianCalendar error",e);
        }
        return xmlGregorianCalendar;
    }
}