67 lines
1.5 KiB
Java
67 lines
1.5 KiB
Java
// SPDX-FileCopyrightText: 2021 Paul Schaub <vanitasvitae@fsfe.org>
|
|
//
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
package org.pgpainless.util;
|
|
|
|
import java.text.ParseException;
|
|
import java.text.SimpleDateFormat;
|
|
import java.util.Date;
|
|
import java.util.TimeZone;
|
|
|
|
public final class DateUtil {
|
|
|
|
private DateUtil() {
|
|
|
|
}
|
|
|
|
public static SimpleDateFormat getParser() {
|
|
SimpleDateFormat parser = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z");
|
|
parser.setTimeZone(TimeZone.getTimeZone("UTC"));
|
|
return parser;
|
|
}
|
|
|
|
/**
|
|
* Parse a UTC timestamp into a date.
|
|
*
|
|
* @param dateString timestamp
|
|
* @return date
|
|
*/
|
|
public static Date parseUTCDate(String dateString) {
|
|
try {
|
|
return getParser().parse(dateString);
|
|
} catch (ParseException e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Format a date as UTC timestamp.
|
|
*
|
|
* @param date date
|
|
* @return timestamp
|
|
*/
|
|
public static String formatUTCDate(Date date) {
|
|
return getParser().format(date);
|
|
}
|
|
|
|
/**
|
|
* "Round" a date down to seconds precision.
|
|
* @param date date
|
|
* @return rounded date
|
|
*/
|
|
public static Date toSecondsPrecision(Date date) {
|
|
long seconds = date.getTime() / 1000;
|
|
return new Date(seconds * 1000);
|
|
}
|
|
|
|
/**
|
|
* Return the current date "rounded" to UTC precision.
|
|
*
|
|
* @return now
|
|
*/
|
|
public static Date now() {
|
|
return parseUTCDate(formatUTCDate(new Date()));
|
|
}
|
|
}
|