Java Date Format ISO getIso8601(final Date date)

Description

Gets the date and time in ISO8601 format with time zone formatted as Z (UTC), +hh:mm, or -hh:mm.

License

Open Source License

Parameter

Parameter	Description
date	The date and time to convert to ISO8601 format.

Return

Returns the value of date in ISO8601 format yyyy-MM-ddThh:mm:ss.sssZ, yyyy-MM-dd-Thh:mm:ss.sss+hh:mm, or yyyy-MM-dd-Thh:mm:ss.sss-hh:mm

Declaration

@Deprecated
public static String getIso8601(final Date date)

Method Source Code


//package com.java2s;
/*/*from w  w  w. j  a  v  a 2s  . co m*/
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the Common Development and Distribution License, Version 1.0
 * only (the "License"). You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at license/ESCIDOC.LICENSE or http://www.escidoc.de/license. See the License for
 * the specific language governing permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each file and include the License file at
 * license/ESCIDOC.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by
 * brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 *
 * Copyright 2006-2011 Fachinformationszentrum Karlsruhe Gesellschaft fuer wissenschaftlich-technische Information mbH
 * and Max-Planck-Gesellschaft zur Foerderung der Wissenschaft e.V. All rights reserved. Use is subject to license
 * terms.
 */

import java.text.DateFormat;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;

public class Main {
    private static final String UTC_TIMEZONE_ID = "UTC";
    private static final String DATE_FORMAT_PATTERN = "yyyy-MM-dd'T'HH:mm:ss.SSSZ";
    private static final Calendar CALENDAR = new GregorianCalendar(TimeZone.getTimeZone(UTC_TIMEZONE_ID));

    /**
     * Gets the date and time in ISO8601 format with time zone formatted as Z (UTC), +hh:mm, or -hh:mm.
     *
     * @param date The date and time to convert to ISO8601 format.
     * @return Returns the value of date in ISO8601 format yyyy-MM-ddThh:mm:ss.sssZ, yyyy-MM-dd-Thh:mm:ss.sss+hh:mm, or
     *         yyyy-MM-dd-Thh:mm:ss.sss-hh:mm
     */
    @Deprecated
    public static String getIso8601(final Date date) {
        final DateFormat outputDateFormat = createDateFormat(DATE_FORMAT_PATTERN);
        final String preformatted = outputDateFormat.format(date);
        return preformatted.endsWith("Z") ? preformatted
                : preformatted.endsWith("+0000")
                        ? preformatted.substring(0, preformatted.length() - "+0000".length()) + 'Z'
                        : preformatted.substring(0, preformatted.length() - 2) + ':'
                                + preformatted.substring(preformatted.length() - 2, preformatted.length());
    }

    /**
     * Creates a date format for the provided pattern.<br>
     *
     * @param pattern The format pattern.
     * @return Returns an instance of <code>SimpleDateFormat</code> using the provided pattern and the gregorian
     *         CALENDAR with UTC time zone.
     */
    private static DateFormat createDateFormat(final String pattern) {
        final DateFormat df = new SimpleDateFormat(pattern);
        df.setCalendar(CALENDAR);
        df.setTimeZone(TimeZone.getTimeZone(UTC_TIMEZONE_ID));
        return df;
    }
}