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/*
* Copyright (C) 2022-2022 S.Violet
*
* 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.
*
* Project GitHub: https://github.com/shepherdviolet/glacimon
* Email: [email protected]
*/
package com.github.shepherdviolet.glacimon.java.misc;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
/**
* Date time utils (JDK7)
*
* @author shepherdviolet
*/
public class DateTimeUtils {
/**
* Current date
*/
public static Date getCurrentDate() {
return new Date();
}
/**
* Current time millis
*/
public static long getCurrentTimeMillis(){
return System.currentTimeMillis();
}
/**
* Current nano time, can only be used to measure elapsed time and is not related to any other notion of
* system or wall-clock time
*/
public static long getNanoTime(){
return System.nanoTime();
}
// Current date string ///////////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Current date string, yyyy-MM-dd
*/
public static String currentDateString(){
return currentDateTimeString("yyyy-MM-dd", null, null);
}
/**
* Current time string, HH:mm:ss.SSS
*/
public static String currentTimeString(){
return currentDateTimeString("HH:mm:ss.SSS", null, null);
}
/**
* Current date time string, yyyy-MM-dd HH:mm:ss.SSS
*/
public static String currentDateTimeString(){
return currentDateTimeString("yyyy-MM-dd HH:mm:ss.SSS", null, null);
}
/**
* Current date time string, custom format
*
* @param template date string format
*/
public static String currentDateTimeString(String template){
return currentDateTimeString(template, null, null);
}
/**
* Current date time string, custom format
*
* @param template date string format
* @param locale Locale, nullable, e.g. Locale.SIMPLIFIED_CHINESE
* @param timeZone TimeZone, nullable, e.g. TimeZone.getTimeZone("GMT+08:00")
*/
public static String currentDateTimeString(String template, Locale locale, TimeZone timeZone){
SimpleDateFormat formatter = new SimpleDateFormat(template, locale != null ? locale : Locale.getDefault(Locale.Category.FORMAT));
if (timeZone != null) {
formatter.setTimeZone(timeZone);
}
return formatter.format(new Date());
}
// Millis to date string //////////////////////////////////////////////////////////////////////////////////
/**
* Millis to date string, yyyy-MM-dd
*/
public static String millisToDateString(long timeMillis){
return millisToDateTimeString(timeMillis, "yyyy-MM-dd", null, null);
}
/**
* Millis to time string, HH:mm:ss.SSS
*/
public static String millisToTimeString(long timeMillis){
return millisToDateTimeString(timeMillis, "HH:mm:ss.SSS", null, null);
}
/**
* Millis to date time string, yyyy-MM-dd HH:mm:ss.SSS
*/
public static String millisToDateTimeString(long timeMillis){
return millisToDateTimeString(timeMillis, "yyyy-MM-dd HH:mm:ss.SSS", null, null);
}
/**
* Millis to date time string, custom format
*
* @param template date string format
*/
public static String millisToDateTimeString(long timeMillis, String template){
return millisToDateTimeString(timeMillis, template, null, null);
}
/**
* Millis to date time string, custom format
*
* @param template date string format
* @param locale Locale, nullable, e.g. Locale.SIMPLIFIED_CHINESE
* @param timeZone TimeZone, nullable, e.g. TimeZone.getTimeZone("GMT+08:00")
*/
public static String millisToDateTimeString(long timeMillis, String template, Locale locale, TimeZone timeZone){
SimpleDateFormat formatter = new SimpleDateFormat(template, locale != null ? locale : Locale.getDefault(Locale.Category.FORMAT));
if (timeZone != null) {
formatter.setTimeZone(timeZone);
}
return formatter.format(new Date(timeMillis));
}
// Date to date string //////////////////////////////////////////////////////////////////////////////////
/**
* Date to date string, yyyy-MM-dd
*/
public static String dateToDateString(Date date){
return dateToDateTimeString(date, "yyyy-MM-dd", null, null);
}
/**
* Date to time string, HH:mm:ss.SSS
*/
public static String dateToTimeString(Date date){
return dateToDateTimeString(date, "HH:mm:ss.SSS", null, null);
}
/**
* Date to date time string, yyyy-MM-dd HH:mm:ss.SSS
*/
public static String dateToDateTimeString(Date date){
return dateToDateTimeString(date, "yyyy-MM-dd HH:mm:ss.SSS", null, null);
}
/**
* Date to date time string, custom format
*
* @param template date string format
*/
public static String dateToDateTimeString(Date date, String template){
return dateToDateTimeString(date, template, null, null);
}
/**
* Date to date time string, custom format
*
* @param template date string format
* @param locale Locale, nullable, e.g. Locale.SIMPLIFIED_CHINESE
* @param timeZone TimeZone, nullable, e.g. TimeZone.getTimeZone("GMT+08:00")
*/
public static String dateToDateTimeString(Date date, String template, Locale locale, TimeZone timeZone){
SimpleDateFormat formatter = new SimpleDateFormat(template, locale != null ? locale : Locale.getDefault(Locale.Category.FORMAT));
if (timeZone != null) {
formatter.setTimeZone(timeZone);
}
return formatter.format(date);
}
// String to date ////////////////////////////////////////////////////////////////////////////////////////////////
/**
* Date string to Date
* @param dateStr Date string
* @param pattern Date format, e.g. yyyy-MM-dd HH-mm-ss
*/
public static Date stringToDate(String dateStr, String pattern) throws ParseException {
return stringToDate(dateStr, pattern, null, null);
}
/**
* Date string to Date
* @param dateStr Date string
* @param pattern Date format, e.g. yyyy-MM-dd HH-mm-ss
* @param locale Locale, e.g. Locale.SIMPLIFIED_CHINESE
* @param timeZone TimeZone, nullable, e.g. TimeZone.getTimeZone("GMT+08:00")
*/
public static Date stringToDate(String dateStr, String pattern, Locale locale, TimeZone timeZone) throws ParseException {
SimpleDateFormat formatter = new SimpleDateFormat(pattern, locale != null ? locale : Locale.getDefault(Locale.Category.FORMAT));
if (timeZone != null) {
formatter.setTimeZone(timeZone);
}
return formatter.parse(dateStr);
}
/**
* Date string to Date, return fallback if fails
* @param dateStr Date string
* @param pattern Date format, e.g. yyyy-MM-dd HH-mm-ss
* @param fallback return this if fails
*/
public static Date stringToDate(String dateStr, String pattern, Date fallback) {
return stringToDate(dateStr, pattern, fallback, null, null);
}
/**
* Date string to Date, return fallback if fails
* @param dateStr Date string
* @param pattern Date format, e.g. yyyy-MM-dd HH-mm-ss
* @param fallback return this if fails
* @param locale Locale, e.g. Locale.SIMPLIFIED_CHINESE
* @param timeZone TimeZone, nullable, e.g. TimeZone.getTimeZone("GMT+08:00")
*/
public static Date stringToDate(String dateStr, String pattern, Date fallback, Locale locale, TimeZone timeZone) {
try {
return stringToDate(dateStr, pattern, locale, timeZone);
} catch (ParseException e) {
return fallback;
}
}
}
