Java Hour Format formatTime(long time)

Description

Formats the time to the Docker-standard format.

License

Open Source License

Parameter

Parameter	Description
time	Time to be converted

Return

String in the following format: yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSS'Z' Up to nanoseconds, but actually the last 6 digits are null in the current implementation.

Declaration

public static @Nonnull String formatTime(long time)

Method Source Code

//package com.java2s;
/**//  ww w .  j  a va 2s  . c  om
 * The MIT License (MIT)
 *
 * Copyright (c) 2015, CloudBees, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

import javax.annotation.Nonnull;

public class Main {
    /**
     * Formats the time to the Docker-standard format.
     * @param time Time to be converted
     * @return String in the following format: {@code yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSS'Z'} 
     *      Up to nanoseconds, but actually the last 6 digits are null in the current implementation.
     */
    public static @Nonnull String formatTime(long time) {
        return formatDate(new Date(time));
    }

    /**
     * Formats the time to the Docker-standard format.
     * @param date Date to be converted
     * @return String in the following format: {@code yyyy-MM-dd'T'HH:mm:ss.SSSSSSSSS'Z'} 
     *      Up to nanoseconds, but actually the last 6 digits are null in the current implementation.
     */
    public static @Nonnull String formatDate(Date date) {
        TimeZone tz = TimeZone.getTimeZone("UTC");
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS");
        df.setTimeZone(tz);
        return df.format(date) + "000000Z";
    }
}