Java tutorial
/* * Copyright 2011-2013 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 * * 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. */ package kr.debop4j.timeperiod.tools; import kr.debop4j.timeperiod.Halfyear; import kr.debop4j.timeperiod.Quarter; import lombok.extern.slf4j.Slf4j; import org.joda.time.DateTime; import org.joda.time.Duration; import java.util.Locale; import static kr.debop4j.timeperiod.tools.Times.startTimeOfHalfyear; import static kr.debop4j.timeperiod.tools.Times.startTimeOfQuarter; /** * ? . : {@link Duration} * * @author ? sunghyouk.bae@gmail.com * @since 13. 5. 10. 11:58 */ @Slf4j public abstract class Durations { private Durations() { } /** * Gets current locale. * * @return the current locale */ public static Locale getCurrentLocale() { return Locale.getDefault(); } /** ? 0 ? Duration */ public static final Duration Zero = Duration.ZERO; /** * duration? ? . @param duration the duration * * @return the duration */ public static Duration negate(Duration duration) { return Duration.millis(-duration.getMillis()); } /** * Create duration. * * @param start the start * @param end the end * @return the duration */ public static Duration create(DateTime start, DateTime end) { return new Duration(start, end); } /** * ?? @param year the year * * @return the duration */ public static Duration year(int year) { DateTime start = Times.startTimeOfYear(year); DateTime end = start.plusYears(1); return new Duration(start, end); } /** * Halfyear duration. * * @param year the year * @param halfyear the halfyear * @return the duration */ public static Duration halfyear(int year, Halfyear halfyear) { DateTime start = startTimeOfHalfyear(year, halfyear); DateTime end = start.plusMonths(TimeSpec.MonthsPerHalfyear); return new Duration(start, end); } /** * Quarter duration. * * @param year the year * @param quarter the quarter * @return the duration */ public static Duration quarter(int year, Quarter quarter) { DateTime start = startTimeOfQuarter(year, quarter); DateTime end = start.plusMonths(TimeSpec.MonthsPerQuarter); return new Duration(start, end); } /** * Month duration. * * @param year the year * @param monthOfYear the month of year * @return the duration */ public static Duration month(int year, int monthOfYear) { DateTime start = Times.startTimeOfMonth(year, monthOfYear); DateTime end = start.plusMonths(1); return new Duration(start, end); } public static final Duration Week = weeks(1); /** * Weeks duration. * * @param weeks the weeks * @return the duration */ public static Duration weeks(int weeks) { return (weeks == 0) ? Zero : days(weeks * TimeSpec.DaysPerWeek); } /** 1? () */ public static final Duration Day = Duration.standardDays(1); /** * Days duration. * * @param days the days * @return the duration */ public static Duration days(int days) { return (days == 0) ? Zero : Duration.standardDays(days); } /** * Days duration. * * @param days the days * @param hours the hours * @return the duration */ public static Duration days(int days, int hours) { return days(days, hours, 0, 0, 0); } /** * Days duration. * * @param days the days * @param hours the hours * @param minutes the minutes * @return the duration */ public static Duration days(int days, int hours, int minutes) { return days(days, hours, minutes, 0, 0); } /** * Days duration. * * @param days the days * @param hours the hours * @param minutes the minutes * @param seconds the seconds * @return the duration */ public static Duration days(int days, int hours, int minutes, int seconds) { return days(days, hours, minutes, seconds, 0); } /** * Days duration. * * @param days the days * @param hours the hours * @param minutes the minutes * @param seconds the seconds * @param millis the millis * @return the duration */ public static Duration days(int days, int hours, int minutes, int seconds, int millis) { return Duration.millis(days * TimeSpec.MillisPerDay + hours * TimeSpec.MillisPerHour + minutes * TimeSpec.MillisPerMinute + seconds * TimeSpec.MillisPerSecond + millis); } /** */ public static final Duration Hour = Duration.standardHours(1); /** * Hours duration. * * @param hours the hours * @return the duration */ public static Duration hours(int hours) { return Duration.standardHours(hours); } /** * Hours duration. * * @param hours the hours * @param minutes the minutes * @return the duration */ public static Duration hours(int hours, int minutes) { return hours(hours, minutes, 0, 0); } /** * Hours duration. * * @param hours the hours * @param minutes the minutes * @param seconds the seconds * @return the duration */ public static Duration hours(int hours, int minutes, int seconds) { return hours(hours, minutes, seconds, 0); } /** * Hours duration. * * @param hours the hours * @param minutes the minutes * @param seconds the seconds * @param millis the millis * @return the duration */ public static Duration hours(int hours, int minutes, int seconds, int millis) { return Duration.millis(hours * TimeSpec.MillisPerHour + minutes * TimeSpec.MillisPerMinute + seconds * TimeSpec.MillisPerSecond + millis); } public static final Duration Minute = minutes(1, 0, 0); /** * Minutes duration. * * @param minutes the minutes * @return the duration */ public static Duration minutes(int minutes) { return minutes(minutes, 0, 0); } /** * Minutes duration. * * @param minutes the minutes * @param seconds the seconds * @return the duration */ public static Duration minutes(int minutes, int seconds) { return minutes(minutes, seconds, 0); } /** * Minutes duration. * * @param minutes the minutes * @param seconds the seconds * @param millis the millis * @return the duration */ public static Duration minutes(int minutes, int seconds, int millis) { return Duration.millis(minutes * TimeSpec.MillisPerMinute + seconds * TimeSpec.MillisPerSecond + millis); } public static final Duration Second = seconds(1); /** * Seconds duration. * * @param seconds the seconds * @return the duration */ public static Duration seconds(int seconds) { return seconds(seconds, 0); } /** * Seconds duration. * * @param seconds the seconds * @param millis the millis * @return the duration */ public static Duration seconds(int seconds, int millis) { return Duration.millis(seconds * TimeSpec.MillisPerSecond + millis); } public static final Duration Millisecond = millis(1L); /** * Millis duration. * * @param milliseconds the milliseconds * @return the duration */ public static Duration millis(long milliseconds) { return Duration.millis(milliseconds); } }