1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package libcore.icu; 18 19 import java.text.DateFormat; 20 import java.util.HashMap; 21 import java.util.Locale; 22 import libcore.util.Objects; 23 24 /** 25 * Passes locale-specific from ICU native code to Java. 26 * <p> 27 * Note that you share these; you must not alter any of the fields, nor their array elements 28 * in the case of arrays. If you ever expose any of these things to user code, you must give 29 * them a clone rather than the original. 30 */ 31 public final class LocaleData { 32 // A cache for the locale-specific data. 33 private static final HashMap<String, LocaleData> localeDataCache = new HashMap<String, LocaleData>(); 34 static { 35 // Ensure that we pull in the locale data for the root locale, en_US, and the 36 // user's default locale. (All devices must support the root locale and en_US, 37 // and they're used for various system things like HTTP headers.) Pre-populating 38 // the cache is especially useful on Android because we'll share this via the Zygote. 39 get(Locale.ROOT); 40 get(Locale.US); 41 get(Locale.getDefault()); 42 } 43 44 // Used by Calendar. 45 public Integer firstDayOfWeek; 46 public Integer minimalDaysInFirstWeek; 47 48 // Used by DateFormatSymbols. 49 public String[] amPm; // "AM", "PM". 50 public String[] eras; // "BC", "AD". 51 52 public String[] longMonthNames; // "January", ... 53 public String[] shortMonthNames; // "Jan", ... 54 public String[] tinyMonthNames; // "J", ... 55 public String[] longStandAloneMonthNames; // "January", ... 56 public String[] shortStandAloneMonthNames; // "Jan", ... 57 public String[] tinyStandAloneMonthNames; // "J", ... 58 59 public String[] longWeekdayNames; // "Sunday", ... 60 public String[] shortWeekdayNames; // "Sun", ... 61 public String[] tinyWeekdayNames; // "S", ... 62 public String[] longStandAloneWeekdayNames; // "Sunday", ... 63 public String[] shortStandAloneWeekdayNames; // "Sun", ... 64 public String[] tinyStandAloneWeekdayNames; // "S", ... 65 66 // Used by frameworks/base DateSorter and DateUtils. 67 public String yesterday; // "Yesterday". 68 public String today; // "Today". 69 public String tomorrow; // "Tomorrow". 70 71 public String fullTimeFormat; 72 public String longTimeFormat; 73 public String mediumTimeFormat; 74 public String shortTimeFormat; 75 76 public String fullDateFormat; 77 public String longDateFormat; 78 public String mediumDateFormat; 79 public String shortDateFormat; 80 81 // Used by TimePicker. Not currently used by UTS#35. 82 public String narrowAm; // "a". 83 public String narrowPm; // "p". 84 85 // Used by DateFormat to implement 12- and 24-hour SHORT and MEDIUM. 86 // The first two are also used directly by frameworks code. 87 public String timeFormat_hm; 88 public String timeFormat_Hm; 89 public String timeFormat_hms; 90 public String timeFormat_Hms; 91 92 // Used by DecimalFormatSymbols. 93 public char zeroDigit; 94 public char decimalSeparator; 95 public char groupingSeparator; 96 public char patternSeparator; 97 public String percent; 98 public char perMill; 99 public char monetarySeparator; 100 public String minusSign; 101 public String exponentSeparator; 102 public String infinity; 103 public String NaN; 104 // Also used by Currency. 105 public String currencySymbol; 106 public String internationalCurrencySymbol; 107 108 // Used by DecimalFormat and NumberFormat. 109 public String numberPattern; 110 public String integerPattern; 111 public String currencyPattern; 112 public String percentPattern; 113 114 private LocaleData() { 115 } 116 117 public static Locale mapInvalidAndNullLocales(Locale locale) { 118 if (locale == null) { 119 return Locale.getDefault(); 120 } 121 122 if ("und".equals(locale.toLanguageTag())) { 123 return Locale.ROOT; 124 } 125 126 return locale; 127 } 128 129 /** 130 * Returns a shared LocaleData for the given locale. 131 */ 132 public static LocaleData get(Locale locale) { 133 if (locale == null) { 134 throw new NullPointerException("locale == null"); 135 } 136 137 final String languageTag = locale.toLanguageTag(); 138 synchronized (localeDataCache) { 139 LocaleData localeData = localeDataCache.get(languageTag); 140 if (localeData != null) { 141 return localeData; 142 } 143 } 144 LocaleData newLocaleData = initLocaleData(locale); 145 synchronized (localeDataCache) { 146 LocaleData localeData = localeDataCache.get(languageTag); 147 if (localeData != null) { 148 return localeData; 149 } 150 localeDataCache.put(languageTag, newLocaleData); 151 return newLocaleData; 152 } 153 } 154 155 @Override public String toString() { 156 return Objects.toString(this); 157 } 158 159 public String getDateFormat(int style) { 160 switch (style) { 161 case DateFormat.SHORT: 162 return shortDateFormat; 163 case DateFormat.MEDIUM: 164 return mediumDateFormat; 165 case DateFormat.LONG: 166 return longDateFormat; 167 case DateFormat.FULL: 168 return fullDateFormat; 169 } 170 throw new AssertionError(); 171 } 172 173 public String getTimeFormat(int style) { 174 switch (style) { 175 case DateFormat.SHORT: 176 if (DateFormat.is24Hour == null) { 177 return shortTimeFormat; 178 } else { 179 return DateFormat.is24Hour ? timeFormat_Hm : timeFormat_hm; 180 } 181 case DateFormat.MEDIUM: 182 if (DateFormat.is24Hour == null) { 183 return mediumTimeFormat; 184 } else { 185 return DateFormat.is24Hour ? timeFormat_Hms : timeFormat_hms; 186 } 187 case DateFormat.LONG: 188 // CLDR doesn't really have anything we can use to obey the 12-/24-hour preference. 189 return longTimeFormat; 190 case DateFormat.FULL: 191 // CLDR doesn't really have anything we can use to obey the 12-/24-hour preference. 192 return fullTimeFormat; 193 } 194 throw new AssertionError(); 195 } 196 197 private static LocaleData initLocaleData(Locale locale) { 198 LocaleData localeData = new LocaleData(); 199 if (!ICU.initLocaleDataNative(locale.toLanguageTag(), localeData)) { 200 throw new AssertionError("couldn't initialize LocaleData for locale " + locale); 201 } 202 203 // Get the SHORT and MEDIUM 12- and 24-hour time format strings. 204 localeData.timeFormat_hm = ICU.getBestDateTimePattern("hm", locale); 205 localeData.timeFormat_Hm = ICU.getBestDateTimePattern("Hm", locale); 206 localeData.timeFormat_hms = ICU.getBestDateTimePattern("hms", locale); 207 localeData.timeFormat_Hms = ICU.getBestDateTimePattern("Hms", locale); 208 209 // Fix up a couple of patterns. 210 if (localeData.fullTimeFormat != null) { 211 // There are some full time format patterns in ICU that use the pattern character 'v'. 212 // Java doesn't accept this, so we replace it with 'z' which has about the same result 213 // as 'v', the timezone name. 214 // 'v' -> "PT", 'z' -> "PST", v is the generic timezone and z the standard tz 215 // "vvvv" -> "Pacific Time", "zzzz" -> "Pacific Standard Time" 216 localeData.fullTimeFormat = localeData.fullTimeFormat.replace('v', 'z'); 217 } 218 if (localeData.numberPattern != null) { 219 // The number pattern might contain positive and negative subpatterns. Arabic, for 220 // example, might look like "#,##0.###;#,##0.###-" because the minus sign should be 221 // written last. Macedonian supposedly looks something like "#,##0.###;(#,##0.###)". 222 // (The negative subpattern is optional, though, and not present in most locales.) 223 // By only swallowing '#'es and ','s after the '.', we ensure that we don't 224 // accidentally eat too much. 225 localeData.integerPattern = localeData.numberPattern.replaceAll("\\.[#,]*", ""); 226 } 227 return localeData; 228 } 229 } 230
