luni/src/main/java/libcore/icu/LocaleData.java - platform/libcore - Git at Google

 /*
  * 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 android.compat.annotation.ChangeId;
 import android.compat.annotation.EnabledAfter;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.compat.Compatibility;
 import android.icu.impl.ICUData;
 import android.icu.impl.ICUResourceBundle;
 import android.icu.text.NumberingSystem;
 import android.icu.util.UResourceBundle;

 import dalvik.system.VMRuntime;

 import java.text.DateFormat;
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.MissingResourceException;
 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.
  * @hide
  */
 @libcore.api.CorePlatformApi
 public final class LocaleData {

     /**
      * @see #USE_REAL_ROOT_LOCALE
      */
     private static final Locale LOCALE_EN_US_POSIX = new Locale("en", "US", "POSIX");

     // In Android Q or before, when this class tries to load {@link Locale#ROOT} data, en_US_POSIX
     // locale data is incorrectly loaded due to a bug b/159514442 (public bug b/159047832).
     //
     // This class used to pass "und" string as BCP47 language tag to our jni code, which then
     // passes the string as as ICU Locale ID to ICU4C. ICU4C 63 or older version doesn't recognize
     // "und" as a valid locale id, and fallback the default locale. The default locale is
     // normally selected in the Locale picker in the Settings app by the user and set via
     // frameworks. But this class statically cached the ROOT locale data before the
     // default locale being set by framework, and without initialization, ICU4C uses en_US_POSIX
     // as default locale. Thus, in Q or before, en_US_POSIX data is loaded.
     //
     // ICU version 64.1 resolved inconsistent behavior of
     // "root", "und" and "" (empty) Locale ID which libcore previously relied on, and they are
     // recognized correctly as {@link Locale#ROOT} since Android R. This ChangeId gated the change,
     // and fallback to the old behavior by checking targetSdkVersion version.
     //
     // The below javadoc is shown in http://developer.android.com for consumption by app developers.
     /**
      * Since Android 11, formatter classes, e.g. java.text.SimpleDateFormat, no longer
      * provide English data when Locale.ROOT format is requested. Please use
      * Locale.ENGLISH to format in English.
      *
      * Note that Locale.ROOT is used as language/country neutral locale or fallback locale,
      * and does not guarantee to represent English locale.
      *
      * This flag is only for documentation and can't be overridden by app. Please use
      * {@code targetSdkVersion} to enable the new behavior.
      */
     @ChangeId
     @EnabledAfter(targetSdkVersion=29 /* Android Q */)
     public static final long USE_REAL_ROOT_LOCALE = 159047832L;

     // 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.
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public Integer firstDayOfWeek;
     @UnsupportedAppUsage
     public Integer minimalDaysInFirstWeek;

     // Used by DateFormatSymbols.
     @libcore.api.CorePlatformApi
     public String[] amPm; // "AM", "PM".
     public String[] eras; // "BC", "AD".

     @libcore.api.CorePlatformApi
     public String[] longMonthNames; // "January", ...
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public String[] shortMonthNames; // "Jan", ...
     @libcore.api.CorePlatformApi
     public String[] tinyMonthNames; // "J", ...
     @libcore.api.CorePlatformApi
     public String[] longStandAloneMonthNames; // "January", ...
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public String[] shortStandAloneMonthNames; // "Jan", ...
     @libcore.api.CorePlatformApi
     public String[] tinyStandAloneMonthNames; // "J", ...

     @libcore.api.CorePlatformApi
     public String[] longWeekdayNames; // "Sunday", ...
     @libcore.api.CorePlatformApi
     public String[] shortWeekdayNames; // "Sun", ...
     @libcore.api.CorePlatformApi
     public String[] tinyWeekdayNames; // "S", ...
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public String[] longStandAloneWeekdayNames; // "Sunday", ...
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public String[] shortStandAloneWeekdayNames; // "Sun", ...
     @libcore.api.CorePlatformApi
     public String[] tinyStandAloneWeekdayNames; // "S", ...

     // Used by frameworks/base DateSorter and DateUtils.
     @libcore.api.CorePlatformApi
     public String yesterday; // "Yesterday".
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public String today; // "Today".
     @UnsupportedAppUsage
     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.
     @libcore.api.CorePlatformApi
     public String narrowAm; // "a".
     @libcore.api.CorePlatformApi
     public String narrowPm; // "p".

     // Used by DateFormat to implement 12- and 24-hour SHORT and MEDIUM.
     // They are also used directly by frameworks code.
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public String timeFormat_hm;
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public String timeFormat_Hm;
     @libcore.api.CorePlatformApi
     public String timeFormat_hms;
     @libcore.api.CorePlatformApi
     public String timeFormat_Hms;

     // Used by DecimalFormatSymbols.
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public char zeroDigit;
     public char decimalSeparator;
     public char groupingSeparator;
     public char patternSeparator;
     public String percent;
     public String 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() {
     }

     @UnsupportedAppUsage
     public static Locale mapInvalidAndNullLocales(Locale locale) {
         if (locale == null) {
             return Locale.getDefault();
         }

         if ("und".equals(locale.toLanguageTag())) {
             return Locale.ROOT;
         }

         return locale;
     }

     /**
      * Normally, this utility function is used by secondary cache above {@link LocaleData},
      * because the cache needs a correct key.
      * @see #USE_REAL_ROOT_LOCALE
      * @return a compatible locale for the bug b/159514442
      */
     public static Locale getCompatibleLocaleForBug159514442(Locale locale) {
         if (Locale.ROOT.equals(locale)) {
             int targetSdkVersion = VMRuntime.getRuntime().getTargetSdkVersion();
             // Don't use Compatibility.isChangeEnabled(USE_REAL_ROOT_LOCALE) because the app compat
             // framework lives in libcore and can depend on this class via various format methods,
             // e.g. String.format(). See b/160912695.
             if (targetSdkVersion <= 29 /* Android Q */) {
                 locale = LOCALE_EN_US_POSIX;
             }
         }
         return locale;
     }

     /**
      * Returns a shared LocaleData for the given locale.
      */
     @UnsupportedAppUsage
     @libcore.api.CorePlatformApi
     public static LocaleData get(Locale locale) {
         if (locale == null) {
             throw new NullPointerException("locale == null");
         }

         locale = getCompatibleLocaleForBug159514442(locale);

         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);
     }

     @libcore.api.CorePlatformApi
     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);
         }

         // Libcore localizes pattern separator while ICU doesn't. http://b/112080617
         initializePatternSeparator(localeData, 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);

         // 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("\\.[#,]*", "");
         }
         return localeData;
     }

     // Libcore localizes pattern separator while ICU doesn't. http://b/112080617
     private static void initializePatternSeparator(LocaleData localeData, Locale locale) {
         NumberingSystem ns = NumberingSystem.getInstance(locale);
         // A numbering system could be numeric or algorithmic. DecimalFormat can only use
         // a numeric and decimal-based (radix == 10) system. Fallback to a Latin, a known numeric
         // and decimal-based if the default numbering system isn't. All locales should have data
         // for Latin numbering system after locale data fallback. See Numbering system section
         // in Unicode Technical Standard #35 for more details.
         String nsName = ns != null && ns.getRadix() == 10 && !ns.isAlgorithmic()
             ? ns.getName() : "latn";
         ICUResourceBundle rb = (ICUResourceBundle) UResourceBundle.getBundleInstance(
             ICUData.ICU_BASE_NAME, locale);
         String patternSeparator = null;
         // The fallback of number format data isn't well-specified in the spec.
         // But the separator can't be null / empty, and ICU uses Latin numbering system
         // as fallback.
         if (!"latn".equals(nsName)) {
             try {
                 patternSeparator = rb.getStringWithFallback(
                     "NumberElements/" + nsName +"/symbols/list");
             } catch (MissingResourceException e) {
                 // Try Latin numbering system later
             }
         }

         if (patternSeparator == null) {
             try {
                 patternSeparator = rb.getStringWithFallback("NumberElements/latn/symbols/list");
             } catch (MissingResourceException e) {
                 // Fallback to the default separator ';'.
             }
         }

         if (patternSeparator == null || patternSeparator.isEmpty()) {
             patternSeparator = ";";
         }

         // Pattern separator in libcore supports single java character only.
         localeData.patternSeparator = patternSeparator.charAt(0);
     }
 }
	/*
	* 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 android.compat.annotation.ChangeId;
	import android.compat.annotation.EnabledAfter;
	import android.compat.annotation.UnsupportedAppUsage;
	import android.compat.Compatibility;
	import android.icu.impl.ICUData;
	import android.icu.impl.ICUResourceBundle;
	import android.icu.text.NumberingSystem;
	import android.icu.util.UResourceBundle;

	import dalvik.system.VMRuntime;

	import java.text.DateFormat;
	import java.util.HashMap;
	import java.util.Locale;
	import java.util.MissingResourceException;
	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.
	* @hide
	*/
	@libcore.api.CorePlatformApi
	public final class LocaleData {

	/**
	* @see #USE_REAL_ROOT_LOCALE
	*/
	private static final Locale LOCALE_EN_US_POSIX = new Locale("en", "US", "POSIX");

	// In Android Q or before, when this class tries to load {@link Locale#ROOT} data, en_US_POSIX
	// locale data is incorrectly loaded due to a bug b/159514442 (public bug b/159047832).
	//
	// This class used to pass "und" string as BCP47 language tag to our jni code, which then
	// passes the string as as ICU Locale ID to ICU4C. ICU4C 63 or older version doesn't recognize
	// "und" as a valid locale id, and fallback the default locale. The default locale is
	// normally selected in the Locale picker in the Settings app by the user and set via
	// frameworks. But this class statically cached the ROOT locale data before the
	// default locale being set by framework, and without initialization, ICU4C uses en_US_POSIX
	// as default locale. Thus, in Q or before, en_US_POSIX data is loaded.
	//
	// ICU version 64.1 resolved inconsistent behavior of
	// "root", "und" and "" (empty) Locale ID which libcore previously relied on, and they are
	// recognized correctly as {@link Locale#ROOT} since Android R. This ChangeId gated the change,
	// and fallback to the old behavior by checking targetSdkVersion version.
	//
	// The below javadoc is shown in http://developer.android.com for consumption by app developers.
	/**
	* Since Android 11, formatter classes, e.g. java.text.SimpleDateFormat, no longer
	* provide English data when Locale.ROOT format is requested. Please use
	* Locale.ENGLISH to format in English.
	*
	* Note that Locale.ROOT is used as language/country neutral locale or fallback locale,
	* and does not guarantee to represent English locale.
	*
	* This flag is only for documentation and can't be overridden by app. Please use
	* {@code targetSdkVersion} to enable the new behavior.
	*/
	@ChangeId
	@EnabledAfter(targetSdkVersion=29 /* Android Q */)
	public static final long USE_REAL_ROOT_LOCALE = 159047832L;

	// 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.
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public Integer firstDayOfWeek;
	@UnsupportedAppUsage
	public Integer minimalDaysInFirstWeek;

	// Used by DateFormatSymbols.
	@libcore.api.CorePlatformApi
	public String[] amPm; // "AM", "PM".
	public String[] eras; // "BC", "AD".

	@libcore.api.CorePlatformApi
	public String[] longMonthNames; // "January", ...
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public String[] shortMonthNames; // "Jan", ...
	@libcore.api.CorePlatformApi
	public String[] tinyMonthNames; // "J", ...
	@libcore.api.CorePlatformApi
	public String[] longStandAloneMonthNames; // "January", ...
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public String[] shortStandAloneMonthNames; // "Jan", ...
	@libcore.api.CorePlatformApi
	public String[] tinyStandAloneMonthNames; // "J", ...

	@libcore.api.CorePlatformApi
	public String[] longWeekdayNames; // "Sunday", ...
	@libcore.api.CorePlatformApi
	public String[] shortWeekdayNames; // "Sun", ...
	@libcore.api.CorePlatformApi
	public String[] tinyWeekdayNames; // "S", ...
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public String[] longStandAloneWeekdayNames; // "Sunday", ...
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public String[] shortStandAloneWeekdayNames; // "Sun", ...
	@libcore.api.CorePlatformApi
	public String[] tinyStandAloneWeekdayNames; // "S", ...

	// Used by frameworks/base DateSorter and DateUtils.
	@libcore.api.CorePlatformApi
	public String yesterday; // "Yesterday".
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public String today; // "Today".
	@UnsupportedAppUsage
	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.
	@libcore.api.CorePlatformApi
	public String narrowAm; // "a".
	@libcore.api.CorePlatformApi
	public String narrowPm; // "p".

	// Used by DateFormat to implement 12- and 24-hour SHORT and MEDIUM.
	// They are also used directly by frameworks code.
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public String timeFormat_hm;
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public String timeFormat_Hm;
	@libcore.api.CorePlatformApi
	public String timeFormat_hms;
	@libcore.api.CorePlatformApi
	public String timeFormat_Hms;

	// Used by DecimalFormatSymbols.
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public char zeroDigit;
	public char decimalSeparator;
	public char groupingSeparator;
	public char patternSeparator;
	public String percent;
	public String 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() {
	}

	@UnsupportedAppUsage
	public static Locale mapInvalidAndNullLocales(Locale locale) {
	if (locale == null) {
	return Locale.getDefault();
	}

	if ("und".equals(locale.toLanguageTag())) {
	return Locale.ROOT;
	}

	return locale;
	}

	/**
	* Normally, this utility function is used by secondary cache above {@link LocaleData},
	* because the cache needs a correct key.
	* @see #USE_REAL_ROOT_LOCALE
	* @return a compatible locale for the bug b/159514442
	*/
	public static Locale getCompatibleLocaleForBug159514442(Locale locale) {
	if (Locale.ROOT.equals(locale)) {
	int targetSdkVersion = VMRuntime.getRuntime().getTargetSdkVersion();
	// Don't use Compatibility.isChangeEnabled(USE_REAL_ROOT_LOCALE) because the app compat
	// framework lives in libcore and can depend on this class via various format methods,
	// e.g. String.format(). See b/160912695.
	if (targetSdkVersion <= 29 /* Android Q */) {
	locale = LOCALE_EN_US_POSIX;
	}
	}
	return locale;
	}

	/**
	* Returns a shared LocaleData for the given locale.
	*/
	@UnsupportedAppUsage
	@libcore.api.CorePlatformApi
	public static LocaleData get(Locale locale) {
	if (locale == null) {
	throw new NullPointerException("locale == null");
	}

	locale = getCompatibleLocaleForBug159514442(locale);

	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);
	}

	@libcore.api.CorePlatformApi
	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);
	}

	// Libcore localizes pattern separator while ICU doesn't. http://b/112080617
	initializePatternSeparator(localeData, 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);

	// 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("\\.[#,]*", "");
	}
	return localeData;
	}

	// Libcore localizes pattern separator while ICU doesn't. http://b/112080617
	private static void initializePatternSeparator(LocaleData localeData, Locale locale) {
	NumberingSystem ns = NumberingSystem.getInstance(locale);
	// A numbering system could be numeric or algorithmic. DecimalFormat can only use
	// a numeric and decimal-based (radix == 10) system. Fallback to a Latin, a known numeric
	// and decimal-based if the default numbering system isn't. All locales should have data
	// for Latin numbering system after locale data fallback. See Numbering system section
	// in Unicode Technical Standard #35 for more details.
	String nsName = ns != null && ns.getRadix() == 10 && !ns.isAlgorithmic()
	? ns.getName() : "latn";
	ICUResourceBundle rb = (ICUResourceBundle) UResourceBundle.getBundleInstance(
	ICUData.ICU_BASE_NAME, locale);
	String patternSeparator = null;
	// The fallback of number format data isn't well-specified in the spec.
	// But the separator can't be null / empty, and ICU uses Latin numbering system
	// as fallback.
	if (!"latn".equals(nsName)) {
	try {
	patternSeparator = rb.getStringWithFallback(
	"NumberElements/" + nsName +"/symbols/list");
	} catch (MissingResourceException e) {
	// Try Latin numbering system later
	}
	}

	if (patternSeparator == null) {
	try {
	patternSeparator = rb.getStringWithFallback("NumberElements/latn/symbols/list");
	} catch (MissingResourceException e) {
	// Fallback to the default separator ';'.
	}
	}

	if (patternSeparator == null \|\| patternSeparator.isEmpty()) {
	patternSeparator = ";";
	}

	// Pattern separator in libcore supports single java character only.
	localeData.patternSeparator = patternSeparator.charAt(0);
	}
	}