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 java.text.DateFormat;
 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".

     // Used by DateFormat to implement 12- and 24-hour SHORT and MEDIUM.
     // The first two are also used directly by frameworks code.
     public String timeFormat_hm;
     public String timeFormat_Hm;
     public String timeFormat_hms;
     public String timeFormat_Hms;

     // 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);

         // 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;
     }
 }
	/*
	* 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.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".

	// Used by DateFormat to implement 12- and 24-hour SHORT and MEDIUM.
	// The first two are also used directly by frameworks code.
	public String timeFormat_hm;
	public String timeFormat_Hm;
	public String timeFormat_hms;
	public String timeFormat_Hms;

	// 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);

	// 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;
	}
	}