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/*
* Copyright 2014 Guidewire Software, Inc.
*/
package gw.date;
import gw.config.CommonServices;
import java.util.Calendar;
import java.util.Date;
/**
* Utilities for java.util.Date objects. These utilities are not intended to be used directly; use the corresponding
* enhancements on Date instead.
*/
public class GosuDateUtil {
/**
* Adds the specified (signed) amount of seconds to the given date. For
* example, to subtract 5 seconds from the current time of the date, you can
* achieve it by calling: addSeconds(Date, -5).
*
* @param date The time.
* @param iSeconds The amount of seconds to add.
*
* @return A new date with the seconds added.
*/
public static Date addSeconds(Date date, int iSeconds) {
Calendar dateTime = dateToCalendar(date);
dateTime.add(Calendar.SECOND, iSeconds);
return dateTime.getTime();
}
/**
* Adds the specified (signed) amount of minutes to the given date. For
* example, to subtract 5 minutes from the current time of the date, you can
* achieve it by calling: addMinutes(Date, -5).
*
* @param date The time.
* @param iMinutes The amount of minutes to add.
*
* @return A new date with the minutes added.
*/
public static Date addMinutes(Date date, int iMinutes ) {
Calendar dateTime = dateToCalendar(date);
dateTime.add(Calendar.MINUTE, iMinutes);
return dateTime.getTime();
}
/**
* Adds the specified (signed) amount of hours to the given date. For
* example, to subtract 5 hours from the current date, you can
* achieve it by calling: addHours(Date, -5).
*
* @param date The time.
* @param iHours The amount of hours to add.
*
* @return A new date with the hours added.
*/
public static Date addHours(Date date, int iHours) {
Calendar dateTime = dateToCalendar(date);
dateTime.add(Calendar.HOUR, iHours);
return dateTime.getTime();
}
/**
* Adds the specified (signed) amount of days to the given date. For
* example, to subtract 5 days from the current date, you can
* achieve it by calling: addDays(Date, -5).
*
* @param date The time.
* @param iDays The amount of days to add.
*
* @return A new date with the days added.
*/
public static Date addDays(Date date, int iDays) {
Calendar dateTime = dateToCalendar(date);
dateTime.add(Calendar.DATE, iDays);
return dateTime.getTime();
}
/**
* Adds the specified (signed) amount of weeks to the given date. For
* example, to subtract 5 weeks from the current date, you can
* achieve it by calling: addWeeks(Date, -5).
*
* @param date The time.
* @param iWeeks The amount of weeks to add.
*
* @return A new date with the weeks added.
*/
public static Date addWeeks(Date date, int iWeeks) {
Calendar dateTime = dateToCalendar(date);
dateTime.add(Calendar.WEEK_OF_YEAR, iWeeks);
return dateTime.getTime();
}
/**
* Adds the specified (signed) amount of months to the given date. For
* example, to subtract 5 months from the current date, you can
* achieve it by calling: addMonths(Date, -5).
*
* @param date The time.
* @param iMonths The amount of months to add.
*
* @return A new date with the months added.
*/
public static Date addMonths(Date date, int iMonths) {
Calendar dateTime = dateToCalendar(date);
dateTime.add(Calendar.MONTH, iMonths);
return dateTime.getTime();
}
/**
* Adds the specified (signed) amount of years to the given date. For
* example, to subtract 5 years from the current date, you can
* achieve it by calling: addYears(Date, -5).
*
* @param date The time.
* @param iYears The amount of years to add.
*
* @return A new date with the years added.
*/
public static Date addYears(Date date, int iYears) {
Calendar dateTime = dateToCalendar(date);
dateTime.add(Calendar.YEAR, iYears);
return dateTime.getTime();
}
/**
* Get the second of the time
*
* @param date The time.
*
* @return The second of the time, always in the range 0-59
*/
public static int getSecond(Date date) {
return dateToCalendar(date).get(Calendar.SECOND);
}
/**
* Get the minute of the time
*
* @param date The time.
*
* @return The minute of the time, always in the range 0-59
*/
public static int getMinute(Date date) {
return dateToCalendar(date).get(Calendar.MINUTE);
}
/**
* Get the hour of the time, base on a 12-hour clock.
*
* @param date The time.
*
* @return The hour of the time. Based on a 12-hour clock.
*/
public static int getHour(Date date) {
return dateToCalendar(date).get(Calendar.HOUR);
}
/**
* Is the time AM?
*
* @param date The time.
*
* @return true if the time is AM, false otherwise
*/
public static boolean isAM(Date date) {
return dateToCalendar(date).get(Calendar.AM_PM) == Calendar.AM;
}
/**
* Is the time PM?
*
* @param date The time.
*
* @return true if the time is PM, false otherwise
*/
public static boolean isPM(Date date) {
return dateToCalendar(date).get(Calendar.AM_PM) == Calendar.PM;
}
/**
* Get the hour of the time, based on a 24-hour clock.
*
* @param date The time.
*
* @return The hour of the time. Based on a 24-hour clock.
*/
public static int getHourOfDay(Date date) {
return dateToCalendar(date).get(Calendar.HOUR_OF_DAY);
}
/**
* Get the day of week.
*
* @param date The date.
*
* @return The day of week. Sunday = 1, Monday = 2, ..., Saturday = 7.
*/
public static int getDayOfWeek(Date date) {
return dateToCalendar(date).get(Calendar.DAY_OF_WEEK);
}
/**
* Get the day of month.
*
* @param date The date.
*
* @return The day of the month. The first day = 1.
*/
public static int getDayOfMonth(Date date) {
return dateToCalendar(date).get(Calendar.DAY_OF_MONTH);
}
/**
* Get the day of year.
*
* @param date The date.
*
* @return The day number of the year. The first day = 1.
*/
public static int getDayOfYear(Date date) {
return dateToCalendar(date).get(Calendar.DAY_OF_YEAR);
}
/**
* Get the week of month.
*
* @param date The date.
*
* @return The week within the month. The first week = 1.
*/
public static int getWeekOfMonth(Date date) {
return dateToCalendar(date).get(Calendar.WEEK_OF_MONTH);
}
/**
* Get the week of the year.
*
* @param date The date.
*
* @return The week of the year. The first week = 1.
*/
public static int getWeekOfYear(Date date) {
return dateToCalendar(date).get(Calendar.WEEK_OF_YEAR);
}
/**
* The month of the year.
*
* @param date The date
*
* @return The month of the year, in the range 1-12
*/
public static int getMonth(Date date) {
// This is zero-based (Why?.. I don't know.)
return dateToCalendar(date).get(Calendar.MONTH) + 1;
}
/**
* Get the year.
*
* @param date The date.
*
* @return The year of the date.
*/
public static int getYear(Date date) {
return dateToCalendar(date).get(Calendar.YEAR);
}
private static Calendar dateToCalendar(Date date) {
if (date == null) {
throw new NullPointerException( "Null date" );
}
Calendar dateTime = Calendar.getInstance(CommonServices.getEntityAccess().getTimeZone());
dateTime.setTime(date);
return dateTime;
}
}
