/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package libcore.icu;
import java.text.DateFormat;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Locale;
import libcore.util.Objects;
/**
* Passes locale-specific from ICU native code to Java.
* <p>
* Note that you share these; you must not alter any of the fields, nor their array elements
* in the case of arrays. If you ever expose any of these things to user code, you must give
* them a clone rather than the original.
*/
public final class LocaleData {
// A cache for the locale-specific data.
private static final HashMap<String, LocaleData> localeDataCache = new HashMap<String, LocaleData>();
static {
// Ensure that we pull in the locale data for the root locale, en_US, and the
// user's default locale. (All devices must support the root locale and en_US,
// and they're used for various system things like HTTP headers.) Pre-populating
// the cache is especially useful on Android because we'll share this via the Zygote.
get(Locale.ROOT);
get(Locale.US);
get(Locale.getDefault());
}
// Used by Calendar.
public Integer firstDayOfWeek;
public Integer minimalDaysInFirstWeek;
// Used by DateFormatSymbols.
public String[] amPm; // "AM", "PM".
public String[] eras; // "BC", "AD".
public String[] longMonthNames; // "January", ...
public String[] shortMonthNames; // "Jan", ...
public String[] tinyMonthNames; // "J", ...
public String[] longStandAloneMonthNames; // "January", ...
public String[] shortStandAloneMonthNames; // "Jan", ...
public String[] tinyStandAloneMonthNames; // "J", ...
public String[] longWeekdayNames; // "Sunday", ...
public String[] shortWeekdayNames; // "Sun", ...
public String[] tinyWeekdayNames; // "S", ...
public String[] longStandAloneWeekdayNames; // "Sunday", ...
public String[] shortStandAloneWeekdayNames; // "Sun", ...
public String[] tinyStandAloneWeekdayNames; // "S", ...
// Used by frameworks/base DateSorter and DateUtils.
public String yesterday; // "Yesterday".
public String today; // "Today".
public String tomorrow; // "Tomorrow".
public String fullTimeFormat;
public String longTimeFormat;
public String mediumTimeFormat;
public String shortTimeFormat;
public String fullDateFormat;
public String longDateFormat;
public String mediumDateFormat;
public String shortDateFormat;
// Used by TimePicker. Not currently used by UTS#35.
public String narrowAm; // "a".
public String narrowPm; // "p".
// shortDateFormat, but guaranteed to have 4-digit years.
// Used by android.text.format.DateFormat.getDateFormatStringForSetting.
public String shortDateFormat4;
// Used by DateFormat to implement 12- and 24-hour SHORT and MEDIUM.
public String timeFormat_hm;
public String timeFormat_Hm;
public String timeFormat_hms;
public String timeFormat_Hms;
// Used by android.text.format.DateFormat.getTimeFormat.
public String timeFormat12; // "hh:mm a"
public String timeFormat24; // "HH:mm"
// Used by DecimalFormatSymbols.
public char zeroDigit;
public char decimalSeparator;
public char groupingSeparator;
public char patternSeparator;
public String percent;
public char perMill;
public char monetarySeparator;
public String minusSign;
public String exponentSeparator;
public String infinity;
public String NaN;
// Also used by Currency.
public String currencySymbol;
public String internationalCurrencySymbol;
// Used by DecimalFormat and NumberFormat.
public String numberPattern;
public String integerPattern;
public String currencyPattern;
public String percentPattern;
private LocaleData() {
}
public static Locale mapInvalidAndNullLocales(Locale locale) {
if (locale == null) {
return Locale.getDefault();
}
if ("und".equals(locale.toLanguageTag())) {
return Locale.ROOT;
}
return locale;
}
/**
* Returns a shared LocaleData for the given locale.
*/
public static LocaleData get(Locale locale) {
if (locale == null) {
throw new NullPointerException("locale == null");
}
final String languageTag = locale.toLanguageTag();
synchronized (localeDataCache) {
LocaleData localeData = localeDataCache.get(languageTag);
if (localeData != null) {
return localeData;
}
}
LocaleData newLocaleData = initLocaleData(locale);
synchronized (localeDataCache) {
LocaleData localeData = localeDataCache.get(languageTag);
if (localeData != null) {
return localeData;
}
localeDataCache.put(languageTag, newLocaleData);
return newLocaleData;
}
}
@Override public String toString() {
return Objects.toString(this);
}
public String getDateFormat(int style) {
switch (style) {
case DateFormat.SHORT:
return shortDateFormat;
case DateFormat.MEDIUM:
return mediumDateFormat;
case DateFormat.LONG:
return longDateFormat;
case DateFormat.FULL:
return fullDateFormat;
}
throw new AssertionError();
}
public String getTimeFormat(int style) {
switch (style) {
case DateFormat.SHORT:
if (DateFormat.is24Hour == null) {
return shortTimeFormat;
} else {
return DateFormat.is24Hour ? timeFormat_Hm : timeFormat_hm;
}
case DateFormat.MEDIUM:
if (DateFormat.is24Hour == null) {
return mediumTimeFormat;
} else {
return DateFormat.is24Hour ? timeFormat_Hms : timeFormat_hms;
}
case DateFormat.LONG:
// CLDR doesn't really have anything we can use to obey the 12-/24-hour preference.
return longTimeFormat;
case DateFormat.FULL:
// CLDR doesn't really have anything we can use to obey the 12-/24-hour preference.
return fullTimeFormat;
}
throw new AssertionError();
}
private static LocaleData initLocaleData(Locale locale) {
LocaleData localeData = new LocaleData();
if (!ICU.initLocaleDataNative(locale.toLanguageTag(), localeData)) {
throw new AssertionError("couldn't initialize LocaleData for locale " + locale);
}
// Get the SHORT and MEDIUM 12- and 24-hour time format strings.
localeData.timeFormat_hm = ICU.getBestDateTimePattern("hm", locale);
localeData.timeFormat_Hm = ICU.getBestDateTimePattern("Hm", locale);
localeData.timeFormat_hms = ICU.getBestDateTimePattern("hms", locale);
localeData.timeFormat_Hms = ICU.getBestDateTimePattern("Hms", locale);
// We could move callers over to the other fields, but these seem simpler and discourage
// people from shooting themselves in the foot by learning about patterns and skeletons.
// TODO: the right fix here is probably to move callers over to java.text.DateFormat,
// so nothing outside libcore references these any more.
localeData.timeFormat12 = localeData.timeFormat_hm;
localeData.timeFormat24 = localeData.timeFormat_Hm;
// Fix up a couple of patterns.
if (localeData.fullTimeFormat != null) {
// There are some full time format patterns in ICU that use the pattern character 'v'.
// Java doesn't accept this, so we replace it with 'z' which has about the same result
// as 'v', the timezone name.
// 'v' -> "PT", 'z' -> "PST", v is the generic timezone and z the standard tz
// "vvvv" -> "Pacific Time", "zzzz" -> "Pacific Standard Time"
localeData.fullTimeFormat = localeData.fullTimeFormat.replace('v', 'z');
}
if (localeData.numberPattern != null) {
// The number pattern might contain positive and negative subpatterns. Arabic, for
// example, might look like "#,##0.###;#,##0.###-" because the minus sign should be
// written last. Macedonian supposedly looks something like "#,##0.###;(#,##0.###)".
// (The negative subpattern is optional, though, and not present in most locales.)
// By only swallowing '#'es and ','s after the '.', we ensure that we don't
// accidentally eat too much.
localeData.integerPattern = localeData.numberPattern.replaceAll("\\.[#,]*", "");
}
localeData.shortDateFormat4 = localeData.shortDateFormat.replaceAll("\\byy\\b", "y");
return localeData;
}
}