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src/java.base/share/classes/java/util/Currency.java
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rev 47733 : 8176841: Additional Unicode Language-Tag Extensions
8189134: New system properties for the default Locale extensions
Reviewed-by:
@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
@@ -26,11 +26,10 @@
package java.util;
import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.File;
-import java.io.FileInputStream;
import java.io.FileReader;
import java.io.InputStream;
import java.io.IOException;
import java.io.Serializable;
import java.security.AccessController;
@@ -40,10 +39,11 @@
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
import java.util.spi.CurrencyNameProvider;
+import sun.util.locale.provider.CalendarDataUtility;
import sun.util.locale.provider.LocaleServiceProviderPool;
import sun.util.logging.PlatformLogger;
/**
@@ -346,10 +346,17 @@
* currencies. For example, for the original member countries of the
* European Monetary Union, the method returns the old national currencies
* until December 31, 2001, and the Euro from January 1, 2002, local time
* of the respective countries.
* <p>
+ * If the specified <code>locale</code> contains "cu" and/or "rg"
+ * <a href="./Locale.html#def_locale_extension">Unicode extensions</a>,
+ * the instance returned from this method reflects
+ * the values specified with those extensions. If both "cu" and "rg" are
+ * specified, the currency from "cu" extension supersedes the implicit one
+ * from "rg" extension.
+ * <p>
* The method returns <code>null</code> for territories that don't
* have a currency, such as Antarctica.
*
* @param locale the locale for whose country a <code>Currency</code>
* instance is needed
@@ -359,16 +366,23 @@
* is {@code null}
* @exception IllegalArgumentException if the country of the given {@code locale}
* is not a supported ISO 3166 country code.
*/
public static Currency getInstance(Locale locale) {
- String country = locale.getCountry();
- if (country == null) {
- throw new NullPointerException();
+ // check for locale overrides
+ String override = locale.getUnicodeLocaleType("cu");
+ if (override != null) {
+ try {
+ return getInstance(override.toUpperCase(Locale.ROOT));
+ } catch (IllegalArgumentException iae) {
+ // override currency is invalid. Fall through.
+ }
}
- if (country.length() != 2) {
+ String country = CalendarDataUtility.findRegionOverride(locale).orElse(locale).getCountry();
+
+ if (country == null || !country.matches("^[a-zA-Z]{2}$")) {
throw new IllegalArgumentException();
}
char char1 = country.charAt(0);
char char2 = country.charAt(1);
@@ -480,10 +494,16 @@
* {@link Locale.Category#DISPLAY DISPLAY} locale.
* For example, for the US Dollar, the symbol is "$" if the default
* locale is the US, while for other locales it may be "US$". If no
* symbol can be determined, the ISO 4217 currency code is returned.
* <p>
+ * If the default {@link Locale.Category#DISPLAY DISPLAY} locale
+ * contains "rg" (region override)
+ * <a href="./Locale.html#def_locale_extension">Unicode extension</a>,
+ * the symbol returned from this method reflects
+ * the value specified with that extension.
+ * <p>
* This is equivalent to calling
* {@link #getSymbol(Locale)
* getSymbol(Locale.getDefault(Locale.Category.DISPLAY))}.
*
* @return the symbol of this currency for the default
@@ -496,19 +516,25 @@
/**
* Gets the symbol of this currency for the specified locale.
* For example, for the US Dollar, the symbol is "$" if the specified
* locale is the US, while for other locales it may be "US$". If no
* symbol can be determined, the ISO 4217 currency code is returned.
+ * <p>
+ * If the specified <code>locale</code> contains "rg" (region override)
+ * <a href="./Locale.html#def_locale_extension">Unicode extension</a>,
+ * the symbol returned from this method reflects
+ * the value specified with that extension.
*
* @param locale the locale for which a display name for this currency is
* needed
* @return the symbol of this currency for the specified locale
* @exception NullPointerException if <code>locale</code> is null
*/
public String getSymbol(Locale locale) {
LocaleServiceProviderPool pool =
LocaleServiceProviderPool.getPool(CurrencyNameProvider.class);
+ locale = CalendarDataUtility.findRegionOverride(locale).orElse(locale);
String symbol = pool.getLocalizedObject(
CurrencyNameGetter.INSTANCE,
locale, currencyCode, SYMBOL);
if (symbol != null) {
return symbol;
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