com.power4j.tile.util.DateTimeUtil Maven / Gradle / Ivy
/*
* Copyright 2019-2024 the original author or authors.
*
* 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
*
* https://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.
*/
package com.power4j.tile.util;
import lombok.experimental.UtilityClass;
import org.springframework.lang.Nullable;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.util.Date;
/**
* DateTime util
*
*
* @author CJ ([email protected])
* @since 1.0
*/
@UtilityClass
public class DateTimeUtil {
public static final LocalDateTime EPOCH = LocalDateTime.of(1970, 1, 1, 0, 0, 0);
public static final LocalDateTime FOREVER = LocalDateTime.of(9999, 12, 31, 23, 59, 59);
public LocalDateTime utcNow() {
return LocalDateTime.now(ZoneOffset.UTC);
}
// ~ Converter
// ===================================================================================================
@Nullable
public LocalDateTime startDateTime(@Nullable LocalDate date) {
if (date == null) {
return null;
}
return LocalDateTime.of(date, LocalTime.of(0, 0, 0));
}
@Nullable
public LocalDateTime endDateTime(@Nullable LocalDate date) {
if (date == null) {
return null;
}
return LocalDateTime.of(date, LocalTime.of(23, 59, 59));
}
@Nullable
public Date toDate(@Nullable LocalDateTime localDateTime) {
return toDate(localDateTime, ZoneId.systemDefault());
}
@Nullable
public LocalDateTime toLocalDateTime(@Nullable Date date) {
return toLocalDateTime(date, ZoneId.systemDefault());
}
@Nullable
public Date toDate(@Nullable LocalDateTime localDateTime, ZoneId zoneId) {
if (localDateTime == null) {
return null;
}
return Date.from(localDateTime.atZone(zoneId).toInstant());
}
@Nullable
public LocalDateTime toLocalDateTime(@Nullable Date date, ZoneId zoneId) {
if (date == null) {
return null;
}
return date.toInstant().atZone(zoneId).toLocalDateTime();
}
@Nullable
public Date toDate(@Nullable LocalDateTime localDateTime, ZoneOffset offset) {
if (localDateTime == null) {
return null;
}
return Date.from(localDateTime.atOffset(offset).toInstant());
}
@Nullable
public LocalDateTime toLocalDateTime(@Nullable Date date, ZoneOffset offset) {
if (date == null) {
return null;
}
return date.toInstant().atOffset(offset).toLocalDateTime();
}
// ~ Time Zone
// ===================================================================================================
@Nullable
public ZonedDateTime toZonedDateTime(@Nullable LocalDateTime dateTime, ZoneId zoneId) {
if (dateTime == null) {
return null;
}
return dateTime.atZone(zoneId);
}
@Nullable
public OffsetDateTime toOffsetDateTime(@Nullable LocalDateTime dateTime, ZoneOffset offset) {
if (dateTime == null) {
return null;
}
return dateTime.atOffset(offset);
}
@Nullable
public ZonedDateTime toZonedDateTimeUtc(@Nullable LocalDateTime dateTime) {
if (dateTime == null) {
return null;
}
return toZonedDateTime(dateTime, ZoneOffset.UTC);
}
@Nullable
public LocalDateTime toLocalDateTime(@Nullable ZonedDateTime dateTime) {
if (dateTime == null) {
return null;
}
return dateTime.toLocalDateTime();
}
}