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.Arrays; 21 import java.util.HashMap; 22 import java.util.Locale; 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); Locale.getDefault()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; 50 public String[] eras; 51 52 public String[] longMonthNames; 53 public String[] shortMonthNames; 54 public String[] longStandAloneMonthNames; 55 public String[] shortStandAloneMonthNames; 56 57 public String[] longWeekdayNames; 58 public String[] shortWeekdayNames; 59 public String[] longStandAloneWeekdayNames; 60 public String[] shortStandAloneWeekdayNames; 61 62 public String fullTimeFormat; 63 public String longTimeFormat; 64 public String mediumTimeFormat; 65 public String shortTimeFormat; 66 67 public String fullDateFormat; 68 public String longDateFormat; 69 public String mediumDateFormat; 70 public String shortDateFormat; 71 72 // Used by DecimalFormatSymbols. 73 public char zeroDigit; 74 public char decimalSeparator; 75 public char groupingSeparator; 76 public char patternSeparator; 77 public char percent; 78 public char perMill; 79 public char monetarySeparator; 80 public char minusSign; 81 public String exponentSeparator; 82 public String infinity; 83 public String NaN; 84 // Also used by Currency. 85 public String currencySymbol; 86 public String internationalCurrencySymbol; 87 88 // Used by DecimalFormat and NumberFormat. 89 public String numberPattern; 90 public String integerPattern; 91 public String currencyPattern; 92 public String percentPattern; 93 LocaleData()94 private LocaleData() { 95 } 96 97 /** 98 * Returns a shared LocaleData for the given locale. 99 */ get(Locale locale)100 public static LocaleData get(Locale locale) { 101 if (locale == null) { 102 locale = Locale.getDefault(); 103 } 104 String localeName = locale.toString(); 105 synchronized (localeDataCache) { 106 LocaleData localeData = localeDataCache.get(localeName); 107 if (localeData != null) { 108 return localeData; 109 } 110 } 111 LocaleData newLocaleData = initLocaleData(locale); 112 synchronized (localeDataCache) { 113 LocaleData localeData = localeDataCache.get(localeName); 114 if (localeData != null) { 115 return localeData; 116 } 117 localeDataCache.put(localeName, newLocaleData); 118 return newLocaleData; 119 } 120 } 121 toString()122 @Override public String toString() { 123 return "LocaleData[" + 124 "firstDayOfWeek=" + firstDayOfWeek + "," + 125 "minimalDaysInFirstWeek=" + minimalDaysInFirstWeek + "," + 126 "amPm=" + Arrays.toString(amPm) + "," + 127 "eras=" + Arrays.toString(eras) + "," + 128 "longMonthNames=" + Arrays.toString(longMonthNames) + "," + 129 "shortMonthNames=" + Arrays.toString(shortMonthNames) + "," + 130 "longStandAloneMonthNames=" + Arrays.toString(longStandAloneMonthNames) + "," + 131 "shortStandAloneMonthNames=" + Arrays.toString(shortStandAloneMonthNames) + "," + 132 "longWeekdayNames=" + Arrays.toString(longWeekdayNames) + "," + 133 "shortWeekdayNames=" + Arrays.toString(shortWeekdayNames) + "," + 134 "longStandAloneWeekdayNames=" + Arrays.toString(longStandAloneWeekdayNames) + "," + 135 "shortStandAloneWeekdayNames=" + Arrays.toString(shortStandAloneWeekdayNames) + "," + 136 "fullTimeFormat=" + fullTimeFormat + "," + 137 "longTimeFormat=" + longTimeFormat + "," + 138 "mediumTimeFormat=" + mediumTimeFormat + "," + 139 "shortTimeFormat=" + shortTimeFormat + "," + 140 "fullDateFormat=" + fullDateFormat + "," + 141 "longDateFormat=" + longDateFormat + "," + 142 "mediumDateFormat=" + mediumDateFormat + "," + 143 "shortDateFormat=" + shortDateFormat + "," + 144 "zeroDigit=" + zeroDigit + "," + 145 "decimalSeparator=" + decimalSeparator + "," + 146 "groupingSeparator=" + groupingSeparator + "," + 147 "patternSeparator=" + patternSeparator + "," + 148 "percent=" + percent + "," + 149 "perMill=" + perMill + "," + 150 "monetarySeparator=" + monetarySeparator + "," + 151 "minusSign=" + minusSign + "," + 152 "exponentSeparator=" + exponentSeparator + "," + 153 "infinity=" + infinity + "," + 154 "NaN=" + NaN + "," + 155 "currencySymbol=" + currencySymbol + "," + 156 "internationalCurrencySymbol=" + internationalCurrencySymbol + "," + 157 "numberPattern=" + numberPattern + "," + 158 "integerPattern=" + integerPattern + "," + 159 "currencyPattern=" + currencyPattern + "," + 160 "percentPattern=" + percentPattern + "]"; 161 } 162 getDateFormat(int style)163 public String getDateFormat(int style) { 164 switch (style) { 165 case DateFormat.SHORT: 166 return shortDateFormat; 167 case DateFormat.MEDIUM: 168 return mediumDateFormat; 169 case DateFormat.LONG: 170 return longDateFormat; 171 case DateFormat.FULL: 172 return fullDateFormat; 173 } 174 throw new AssertionError(); 175 } 176 getTimeFormat(int style)177 public String getTimeFormat(int style) { 178 switch (style) { 179 case DateFormat.SHORT: 180 return shortTimeFormat; 181 case DateFormat.MEDIUM: 182 return mediumTimeFormat; 183 case DateFormat.LONG: 184 return longTimeFormat; 185 case DateFormat.FULL: 186 return fullTimeFormat; 187 } 188 throw new AssertionError(); 189 } 190 initLocaleData(Locale locale)191 private static LocaleData initLocaleData(Locale locale) { 192 LocaleData localeData = new LocaleData(); 193 if (!ICU.initLocaleDataImpl(locale.toString(), localeData)) { 194 throw new AssertionError("couldn't initialize LocaleData for locale " + locale); 195 } 196 if (localeData.fullTimeFormat != null) { 197 // There are some full time format patterns in ICU that use the pattern character 'v'. 198 // Java doesn't accept this, so we replace it with 'z' which has about the same result 199 // as 'v', the timezone name. 200 // 'v' -> "PT", 'z' -> "PST", v is the generic timezone and z the standard tz 201 // "vvvv" -> "Pacific Time", "zzzz" -> "Pacific Standard Time" 202 localeData.fullTimeFormat = localeData.fullTimeFormat.replace('v', 'z'); 203 } 204 if (localeData.numberPattern != null) { 205 // The number pattern might contain positive and negative subpatterns. Arabic, for 206 // example, might look like "#,##0.###;#,##0.###-" because the minus sign should be 207 // written last. Macedonian supposedly looks something like "#,##0.###;(#,##0.###)". 208 // (The negative subpattern is optional, though, and not present in most locales.) 209 // By only swallowing '#'es and ','s after the '.', we ensure that we don't 210 // accidentally eat too much. 211 localeData.integerPattern = localeData.numberPattern.replaceAll("\\.[#,]*", ""); 212 } 213 return localeData; 214 } 215 } 216