1 /*

     2  * Copyright (c) 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.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 package com.bar;

    25 

    26 import com.foobar.Utils;

    27 import java.util.Arrays;

    28 import static java.util.Calendar.*;

    29 import java.util.HashMap;

    30 import java.util.Locale;

    31 import java.util.Map;

    32 import java.util.spi.CalendarNameProvider;

    33 

    34 public class CalendarNameProviderImpl extends CalendarNameProvider {

    35     static final char FULLWIDTH_ZERO = '\uff10';

    36     static final Locale[] avail = {

    37         new Locale("ja", "JP", "kids"),

    38     };

    39 

    40     @Override

    41     public String getDisplayName(String calendarType, int field, int value, int style, Locale locale) {

    42         if (calendarType == null || locale == null) {

    43             throw new NullPointerException();

    44         }

    45         if (!Utils.supportsLocale(Arrays.asList(avail), locale)) {

    46             throw new IllegalArgumentException("locale is not one of available locales: "+ locale);

    47         }

    48         if (field != MONTH) {

    49             return null;

    50         }

    51         return toMonthName(value + 1, style);

    52     }

    53 

    54     @Override

    55     public Map<String, Integer> getDisplayNames(String calendarType, int field, int style, Locale locale) {

    56         if (calendarType == null || locale == null) {

    57             throw new NullPointerException();

    58         }

    59         if (!Utils.supportsLocale(Arrays.asList(avail), locale)) {

    60             throw new IllegalArgumentException("locale is not one of available locales: " + locale);

    61         }

    62         if (field != MONTH) {

    63             return null;

    64         }

    65         Map<String, Integer> map = new HashMap<>();

    66         if (style == LONG_STANDALONE) {

    67             style = LONG;

    68         } else if (style == SHORT_STANDALONE) {

    69             style = SHORT;

    70         }

    71         for (int month = JANUARY; month <= DECEMBER; month++) {

    72             if (style == ALL_STYLES || style == LONG) {

    73                 map.put(toMonthName(month + 1, LONG), month);

    74             }

    75             if (style == ALL_STYLES || style == SHORT) {

    76                 map.put(toMonthName(month + 1, SHORT), month);

    77             }

    78         }

    79         return map;

    80     }

    81 

    82     @Override

    83     public Locale[] getAvailableLocales() {

    84         return avail.clone();

    85     }

    86 

    87     // month is 1-based.

    88     public static String toMonthName(int month, int style) {

    89         StringBuilder sb = new StringBuilder();

    90         if (month >= 10) {

    91             sb.append((char)(FULLWIDTH_ZERO + 1));

    92             sb.appendCodePoint((char)(FULLWIDTH_ZERO + (month % 10)));

    93         } else {

    94             sb.appendCodePoint((char)(FULLWIDTH_ZERO + month));

    95         }

    96         if (style == SHORT || style == SHORT_STANDALONE) {

    97             return sb.toString(); // full-width digit(s)

    98         }

    99         sb.append("\u304c\u3064"); // + "gatsu" in Hiragana

   100         return sb.toString();

   101     }

   102 }