| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.empire.commons; |
| |
| import java.text.DateFormat; |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| import java.time.LocalDate; |
| import java.time.LocalDateTime; |
| import java.time.ZoneId; |
| import java.time.format.DateTimeFormatter; |
| import java.time.format.FormatStyle; |
| import java.util.Calendar; |
| import java.util.Date; |
| import java.util.Locale; |
| |
| import org.apache.empire.exceptions.InvalidArgumentException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * This class contains common functions for comparing and converting values of type Date. |
| * |
| */ |
| public class DateUtils |
| { |
| private static final Logger log = LoggerFactory.getLogger(DateUtils.class); |
| |
| public static final long MILLIS_IN_DAY = 86400000; |
| |
| private DateUtils() |
| { |
| // Static Function only |
| // No instance may be created |
| } |
| |
| /** |
| * Returns the current date without time |
| * @return the date |
| */ |
| public static Date getDateNow() |
| { |
| Calendar calendar = Calendar.getInstance(); |
| calendar.set(Calendar.HOUR_OF_DAY, 0); |
| calendar.set(Calendar.MINUTE, 0); |
| calendar.set(Calendar.SECOND, 0); |
| calendar.set(Calendar.MILLISECOND, 0); |
| return calendar.getTime(); |
| } |
| |
| /** |
| * Returns the current date and time |
| * @return the date |
| */ |
| public static Date getTimeNow() |
| { |
| return Calendar.getInstance().getTime(); |
| } |
| |
| /** |
| * Calculates a date relative to the supplied date. |
| * @param date date to calculate from |
| * @param years number of years to add or subtract from the supplied date |
| * @param months number of months to add or subtract from the supplied date |
| * @param days number of days to add or subtract from the supplied date |
| * @return the target date |
| */ |
| public static Date addDate(Date date, int years, int months, int days) |
| { |
| Calendar calendar = Calendar.getInstance(); |
| if (date!=null) |
| calendar.setTime(date); |
| if (years!=0) |
| calendar.add(Calendar.YEAR, years); |
| if (months!=0) |
| calendar.add(Calendar.MONTH, months); |
| if (days!=0) |
| calendar.add(Calendar.DAY_OF_MONTH, days); |
| return calendar.getTime(); |
| } |
| |
| public static Date setDate(Date date, int year, int month, int day) |
| { |
| Calendar calendar = Calendar.getInstance(); |
| if (date!=null) |
| calendar.setTime(date); |
| if (year>0) |
| calendar.set(Calendar.YEAR, year); |
| if (month>0) |
| calendar.set(Calendar.MONTH, month-1); |
| if (day>0) |
| calendar.set(Calendar.DAY_OF_MONTH, day); |
| return calendar.getTime(); |
| } |
| |
| public static Date getDate(int year, int month, int day) |
| { |
| Calendar calendar = Calendar.getInstance(); |
| if (year>0) |
| calendar.set(Calendar.YEAR, year); |
| if (month>0) |
| calendar.set(Calendar.MONTH, month-1); |
| if (day>0) |
| calendar.set(Calendar.DAY_OF_MONTH, day); |
| // No Time |
| calendar.set(Calendar.HOUR_OF_DAY, 0); |
| calendar.set(Calendar.MINUTE, 0); |
| calendar.set(Calendar.SECOND, 0); |
| calendar.set(Calendar.MILLISECOND, 0); |
| return calendar.getTime(); |
| } |
| |
| public static Date getDateTime(int year, int month, int day, int hours, int minutes, int seconds, int millis) |
| { |
| Calendar calendar = Calendar.getInstance(); |
| if (year>0) |
| calendar.set(Calendar.YEAR, year); |
| if (month>0) |
| calendar.set(Calendar.MONTH, month-1); |
| if (day>0) |
| calendar.set(Calendar.DAY_OF_MONTH, day); |
| // No Time |
| calendar.set(Calendar.HOUR_OF_DAY, hours); |
| calendar.set(Calendar.MINUTE, minutes); |
| calendar.set(Calendar.SECOND, seconds); |
| calendar.set(Calendar.MILLISECOND, millis); |
| return calendar.getTime(); |
| } |
| |
| public static Date getDateTime(int year, int month, int day, int hours, int minutes, int seconds) |
| { |
| return getDateTime(year, month, day, hours, minutes, seconds, 0); |
| } |
| |
| public static Date setTime(Date date, int hours, int minutes, int seconds, int millis) |
| { |
| Calendar calendar = Calendar.getInstance(); |
| calendar.setTime(date); |
| calendar.set(Calendar.HOUR_OF_DAY, hours); |
| calendar.set(Calendar.MINUTE, minutes); |
| calendar.set(Calendar.SECOND, seconds); |
| calendar.set(Calendar.MILLISECOND, millis); |
| return calendar.getTime(); |
| } |
| |
| public static Date getDateOnly(Date date) |
| { |
| return setTime(date, 0, 0, 0, 0); |
| } |
| |
| public static Date getTimeOnly(Date date) |
| { |
| return setDate(date, 0, 0, 0); |
| } |
| |
| public static long compareDates(Date date1, Date date2) |
| { |
| long time1 = setTime(date1, 0, 0, 0, 0).getTime(); |
| long time2 = setTime(date2, 0, 0, 0, 0).getTime(); |
| time1 = time1 / MILLIS_IN_DAY; |
| time2 = time2 / MILLIS_IN_DAY; |
| return time1-time2; |
| } |
| |
| public static boolean compareEqual(Date date1, Date date2) |
| { |
| return (compareDates(date1, date2)==0); |
| } |
| |
| // ------- parsing functions ----- |
| |
| public static Date parseDate(String sDate, Locale locale) |
| { |
| // Try to parse |
| try |
| { |
| DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, getSafeLocale(locale)); |
| df.setLenient(true); |
| return df.parse(sDate); |
| } catch (ParseException e) |
| { |
| log.error("Invalid date value", e); |
| return null; |
| } |
| } |
| |
| // ------- formating functions ------- |
| |
| private static Locale getSafeLocale(Locale locale) |
| { |
| return (locale==null) ? Locale.getDefault() : locale; |
| } |
| |
| public static String formatDate(Date date, Locale locale) |
| { |
| if (date==null) |
| return StringUtils.EMPTY; |
| DateFormat df = DateFormat.getDateInstance(DateFormat.MEDIUM, getSafeLocale(locale)); |
| return df.format(date); |
| } |
| |
| public static String formatTime(Date date, Locale locale, boolean withSeconds) |
| { |
| if (date==null) |
| return StringUtils.EMPTY; |
| int style = (withSeconds ? DateFormat.MEDIUM : DateFormat.SHORT); |
| DateFormat df = DateFormat.getTimeInstance(style, getSafeLocale(locale)); |
| return df.format(date); |
| } |
| |
| public static String formatDayOfWeek(Date date, Locale locale, boolean longFormat) |
| { |
| if (date==null) |
| return StringUtils.EMPTY; |
| SimpleDateFormat sdf = new SimpleDateFormat("", getSafeLocale(locale)); |
| Calendar c = Calendar.getInstance(getSafeLocale(locale)); |
| c.setTime(date); |
| int dayOfWeek = c.get(Calendar.DAY_OF_WEEK); |
| if (longFormat) |
| return sdf.getDateFormatSymbols().getWeekdays()[dayOfWeek]; |
| else |
| return sdf.getDateFormatSymbols().getShortWeekdays()[dayOfWeek]; |
| } |
| |
| public static String formatMonth(Date date, Locale locale, boolean longFormat) |
| { |
| if (date==null) |
| return StringUtils.EMPTY; |
| SimpleDateFormat sdf = new SimpleDateFormat("", getSafeLocale(locale)); |
| Calendar c = Calendar.getInstance(getSafeLocale(locale)); |
| c.setTime(date); |
| int month = c.get(Calendar.MONTH); |
| if (longFormat) |
| return sdf.getDateFormatSymbols().getMonths()[month]; |
| else |
| return sdf.getDateFormatSymbols().getShortMonths()[month]; |
| } |
| |
| public static int getWeekOfYear(Date date, Locale locale) |
| { |
| if (date==null) |
| throw new InvalidArgumentException("date", date); |
| Calendar c = Calendar.getInstance(getSafeLocale(locale)); |
| c.setTime(date); |
| return c.get(Calendar.WEEK_OF_YEAR); |
| } |
| |
| public static String formatMonth(int month, Locale locale, boolean longFormat) |
| { |
| SimpleDateFormat sdf = new SimpleDateFormat("", getSafeLocale(locale)); |
| if (longFormat) |
| return sdf.getDateFormatSymbols().getMonths()[month]; |
| else |
| return sdf.getDateFormatSymbols().getShortMonths()[month]; |
| } |
| |
| public static String formatYear(Date date, Locale locale) |
| { |
| if (date==null) |
| return StringUtils.EMPTY; |
| SimpleDateFormat sdf = new SimpleDateFormat("yyyy", getSafeLocale(locale)); |
| Calendar c = Calendar.getInstance(getSafeLocale(locale)); |
| c.setTime(date); |
| return sdf.format(date); |
| } |
| |
| /* |
| * LocalDate |
| */ |
| |
| public static LocalDate toLocalDate(java.sql.Date date) |
| { |
| return date.toLocalDate(); |
| } |
| |
| public static LocalDate toLocalDate(java.sql.Timestamp timestamp) |
| { |
| return timestamp.toLocalDateTime().toLocalDate(); |
| } |
| |
| public static LocalDateTime toLocalDateTime(java.sql.Date date) |
| { |
| return date.toLocalDate().atStartOfDay(); |
| } |
| |
| public static LocalDateTime toLocalDateTime(java.sql.Timestamp timestamp) |
| { |
| return timestamp.toLocalDateTime(); |
| } |
| |
| public static LocalDate toLocalDate(Date date) |
| { // return Instant.ofEpochMilli(date.getTime()).atZone(ZoneId.systemDefault()).toLocalDate(); |
| return date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate(); |
| } |
| |
| public static LocalDateTime toLocalDateTime(Date date) { |
| // return Instant.ofEpochMilli(date.getTime()).atZone(ZoneId.systemDefault()).toLocalDateTime(); |
| return date.toInstant().atZone(ZoneId.systemDefault()).toLocalDateTime(); |
| } |
| |
| public static Date toDate(LocalDate localDate) { |
| // return java.util.Date.from(localDate.atStartOfDay().atZone(ZoneId.systemDefault()).toInstant()); |
| return java.sql.Date.valueOf(localDate); |
| } |
| |
| public static Date toDate(LocalDateTime localDateTime) { |
| // return java.util.Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant()); |
| return java.sql.Timestamp.valueOf(localDateTime); |
| } |
| |
| public static LocalDate parseLocalDate(String date) { |
| // DateTimeFormatter ISO_LOCAL_DATE |
| return LocalDate.parse(date); |
| } |
| |
| public static LocalDate parseLocalDate(String date, DateTimeFormatter formatter) { |
| return LocalDate.parse(date, formatter); |
| } |
| |
| public static LocalDateTime parseLocalDateTime(String date) { |
| // DateTimeFormatter.ISO_LOCAL_DATE_TIME |
| return LocalDateTime.parse(date); |
| } |
| |
| public static LocalDateTime parseLocalDateTime(String date, DateTimeFormatter formatter) { |
| return LocalDateTime.parse(date, formatter); |
| } |
| |
| /* |
| * Local Date formatting |
| */ |
| |
| public static DateTimeFormatter getLocalDateFormatter(Locale locale) |
| { |
| return DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(getSafeLocale(locale)); |
| } |
| |
| public static DateTimeFormatter getLocalDateTimeFormatter(Locale locale, boolean withSeconds) |
| { |
| return DateTimeFormatter.ofLocalizedDateTime((withSeconds ? FormatStyle.MEDIUM : FormatStyle.SHORT)).withLocale(getSafeLocale(locale)); |
| } |
| |
| public static String formatDate(LocalDate localDate, Locale locale) |
| { |
| if (localDate==null) |
| return StringUtils.EMPTY; |
| return getLocalDateFormatter(locale).format(localDate); |
| } |
| |
| public static String formatDate(LocalDateTime localDateTime, Locale locale) |
| { |
| if (localDateTime==null) |
| return StringUtils.EMPTY; |
| return getLocalDateFormatter(locale).format(localDateTime.toLocalDate()); |
| } |
| |
| public static String formatDateTime(LocalDateTime localDateTime, Locale locale, boolean withSeconds) |
| { |
| if (localDateTime==null) |
| return StringUtils.EMPTY; |
| return getLocalDateTimeFormatter(locale, withSeconds).format(localDateTime); |
| } |
| |
| } |