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src/java.base/share/classes/sun/util/locale/provider/NumberFormatProviderImpl.java

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rev 47480 : [mq]: 8176841
   1 /*
   2  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 156      * @param locale the desired locale
 157      * @exception NullPointerException if <code>locale</code> is null
 158      * @exception IllegalArgumentException if <code>locale</code> isn't
 159      *     one of the locales returned from
 160      *     {@link java.util.spi.LocaleServiceProvider#getAvailableLocales()
 161      *     getAvailableLocales()}.
 162      * @return a percent formatter
 163      * @see java.text.NumberFormat#getPercentInstance(java.util.Locale)
 164      */
 165     @Override
 166     public NumberFormat getPercentInstance(Locale locale) {
 167         return getInstance(locale, PERCENTSTYLE);
 168     }
 169 
 170     private NumberFormat getInstance(Locale locale,
 171                                             int choice) {
 172         if (locale == null) {
 173             throw new NullPointerException();
 174         }
 175 





 176         LocaleProviderAdapter adapter = LocaleProviderAdapter.forType(type);
 177         String[] numberPatterns = adapter.getLocaleResources(locale).getNumberPatterns();
 178         DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(locale);
 179         int entry = (choice == INTEGERSTYLE) ? NUMBERSTYLE : choice;
 180         DecimalFormat format = new DecimalFormat(numberPatterns[entry], symbols);
 181 
 182         if (choice == INTEGERSTYLE) {
 183             format.setMaximumFractionDigits(0);
 184             format.setDecimalSeparatorAlwaysShown(false);
 185             format.setParseIntegerOnly(true);
 186         } else if (choice == CURRENCYSTYLE) {
 187             adjustForCurrencyDefaultFractionDigits(format, symbols);
 188         }
 189 
 190         return format;
 191     }
 192 
 193     /**
 194      * Adjusts the minimum and maximum fraction digits to values that
 195      * are reasonable for the currency's default fraction digits.
 196      */
 197     private static void adjustForCurrencyDefaultFractionDigits(
 198             DecimalFormat format, DecimalFormatSymbols symbols) {


   1 /*
   2  * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 156      * @param locale the desired locale
 157      * @exception NullPointerException if <code>locale</code> is null
 158      * @exception IllegalArgumentException if <code>locale</code> isn't
 159      *     one of the locales returned from
 160      *     {@link java.util.spi.LocaleServiceProvider#getAvailableLocales()
 161      *     getAvailableLocales()}.
 162      * @return a percent formatter
 163      * @see java.text.NumberFormat#getPercentInstance(java.util.Locale)
 164      */
 165     @Override
 166     public NumberFormat getPercentInstance(Locale locale) {
 167         return getInstance(locale, PERCENTSTYLE);
 168     }
 169 
 170     private NumberFormat getInstance(Locale locale,
 171                                             int choice) {
 172         if (locale == null) {
 173             throw new NullPointerException();
 174         }
 175 
 176         // Check for region override
 177         Locale override = locale.getUnicodeLocaleType("nu") == null ?
 178             CalendarDataUtility.findRegionOverride(locale).orElse(locale) :
 179             locale;
 180 
 181         LocaleProviderAdapter adapter = LocaleProviderAdapter.forType(type);
 182         String[] numberPatterns = adapter.getLocaleResources(override).getNumberPatterns();
 183         DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(override);
 184         int entry = (choice == INTEGERSTYLE) ? NUMBERSTYLE : choice;
 185         DecimalFormat format = new DecimalFormat(numberPatterns[entry], symbols);
 186 
 187         if (choice == INTEGERSTYLE) {
 188             format.setMaximumFractionDigits(0);
 189             format.setDecimalSeparatorAlwaysShown(false);
 190             format.setParseIntegerOnly(true);
 191         } else if (choice == CURRENCYSTYLE) {
 192             adjustForCurrencyDefaultFractionDigits(format, symbols);
 193         }
 194 
 195         return format;
 196     }
 197 
 198     /**
 199      * Adjusts the minimum and maximum fraction digits to values that
 200      * are reasonable for the currency's default fraction digits.
 201      */
 202     private static void adjustForCurrencyDefaultFractionDigits(
 203             DecimalFormat format, DecimalFormatSymbols symbols) {


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