com.ibm.icu.util.Holiday Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of icu4j Show documentation
Show all versions of icu4j Show documentation
International Component for Unicode for Java (ICU4J) is a mature, widely used Java library
providing Unicode and Globalization support
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 1996-2011, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
package com.ibm.icu.util;
import java.util.Date;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import com.ibm.icu.util.ULocale.Category;
/**
* Note: The Holiday framework is a technology preview.
* Despite its age, is still draft API, and clients should treat it as such.
*
* An abstract class representing a holiday.
* @draft ICU 2.8 (retainAll)
*/
public abstract class Holiday implements DateRule
{
/**
* @draft ICU 2.8
*/
public static Holiday[] getHolidays()
{
return getHolidays(ULocale.getDefault(Category.FORMAT));
}
/**
* @draft ICU 2.8
*/
public static Holiday[] getHolidays(Locale locale)
{
return getHolidays(ULocale.forLocale(locale));
}
/**
* @draft ICU 3.2
*/
public static Holiday[] getHolidays(ULocale locale)
{
Holiday[] result = noHolidays;
try {
ResourceBundle bundle = UResourceBundle.getBundleInstance("com.ibm.icu.impl.data.HolidayBundle", locale);
result = (Holiday[]) bundle.getObject("holidays");
}
catch (MissingResourceException e) {
}
return result;
}
/**
* Return the first occurrence of this holiday on or after the given date
*
* @param start Only holidays on or after this date are returned.
*
* @return The date on which this holiday occurs, or null if it
* does not occur on or after the start date.
*
* @see #firstBetween
* @draft ICU 2.8
*/
@Override
public Date firstAfter(Date start) {
return rule.firstAfter(start);
}
/**
* Return the first occurrence of this holiday that is on or after
* the given start date and before the given end date.
*
* @param start Only occurrences on or after this date are returned.
* @param end Only occurrences before this date are returned.
*
* @return The date on which this event occurs, or null if it
* does not occur between the start and end dates.
*
* @see #firstAfter
* @draft ICU 2.8
*/
@Override
public Date firstBetween(Date start, Date end) {
return rule.firstBetween(start, end);
}
/**
* Checks whether this holiday falls on the given date. This does
* not take time of day into account; instead it checks
* whether the holiday and the given date are on the same day.
*
* @param date The date to check.
* @return true if this holiday occurs on the given date.
* @draft ICU 2.8
*/
@Override
public boolean isOn(Date date) {
//System.out.println(name + ".isOn(" + date.toString() + "):");
return rule.isOn(date);
}
/**
* Check whether this holiday occurs at least once between the two
* dates given.
* @draft ICU 2.8
*/
@Override
public boolean isBetween(Date start, Date end) {
return rule.isBetween(start, end);
}
/**
* Construct a new Holiday object. This is for use by subclasses only.
* This constructs a new holiday with the given name and date rules.
*
* @param name The name of this holiday. The getDisplayName method
* uses this string as a key to look up the holiday's name a
* resource bundle object named HolidayBundle.
*
* @param rule The date rules used for determining when this holiday
* falls. Holiday's implementation of the DateRule interface
* simply delegates to this DateRule object.
* @draft ICU 2.8
*/
protected Holiday(String name, DateRule rule)
{
this.name = name;
this.rule = rule;
}
/**
* Return the name of this holiday in the language of the default DISPLAY locale.
* @see Category#DISPLAY
* @draft ICU 2.8
*/
public String getDisplayName() {
return getDisplayName(ULocale.getDefault(Category.DISPLAY));
}
/**
* Return the name of this holiday in the language of the specified locale.
* The name parameter passed to this object's constructor is used
* as a key to look up the holiday's localized name in a ResourceBundle object
* named HolidayBundle.
*
* @param locale A locale specifying the language in which the name is desired.
*
* @see ResourceBundle
* @draft ICU 2.8
*/
public String getDisplayName(Locale locale)
{
return getDisplayName(ULocale.forLocale(locale));
}
/**
* Return the name of this holiday in the language of the specified locale
* The name parameter passed to this object's constructor is used
* as a key to look up the holiday's localized name in a ResourceBundle object
* named HolidayBundle.
*
* @param locale A locale specifying the language in which the name is desired.
*
* @see ResourceBundle
* @draft ICU 3.2
*/
public String getDisplayName(ULocale locale)
{
String dispName = name;
try {
ResourceBundle bundle = UResourceBundle.getBundleInstance("com.ibm.icu.impl.data.HolidayBundle", locale);
dispName = bundle.getString(name);
}
catch (MissingResourceException e) {
}
return dispName;
}
/**
* @draft ICU 2.8
*/
public DateRule getRule() {
return rule;
}
/**
* @draft ICU 2.8
*/
public void setRule(DateRule rule) {
this.rule = rule;
}
private String name;
private DateRule rule;
private static Holiday[] noHolidays = {};
}