Java LocaleData类代码示例

import sun.util.resources.LocaleData; //导入依赖的package包/类
/**
 * Look up resource data for the desiredLocale in the cache; update the
 * cache if necessary.
 */
private static ResourceBundle cacheLookup(Locale desiredLocale) {
ResourceBundle rb;
SoftReference data
    = (SoftReference)cachedLocaleData.get(desiredLocale);
if (data == null) {
    rb = LocaleData.getDateFormatData(desiredLocale);
    data = new SoftReference(rb);
    cachedLocaleData.put(desiredLocale, data);
} else {
    if ((rb = (ResourceBundle)data.get()) == null) {
    rb = LocaleData.getDateFormatData(desiredLocale);
    data = new SoftReference(rb);
    }
}
return rb;
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
/**
 * Creates a DecimalFormat using the default pattern and symbols
 * for the default locale. This is a convenient way to obtain a
 * DecimalFormat when internationalization is not the main concern.
 * <p>
 * To obtain standard formats for a given locale, use the factory methods
 * on NumberFormat such as getNumberInstance. These factories will
 * return the most appropriate sub-class of NumberFormat for a given
 * locale.
 *
 * @see java.text.NumberFormat#getInstance
 * @see java.text.NumberFormat#getNumberInstance
 * @see java.text.NumberFormat#getCurrencyInstance
 * @see java.text.NumberFormat#getPercentInstance
 */
public DecimalFormat() {
    Locale def = Locale.getDefault();
    // try to get the pattern from the cache
    String pattern = (String) cachedLocaleData.get(def);
    if (pattern == null) {  /* cache miss */
        // Get the pattern for the default locale.
        ResourceBundle rb = LocaleData.getNumberFormatData(def);
        String[] all = rb.getStringArray("NumberPatterns");
        pattern = all[0];
        /* update cache */
        cachedLocaleData.put(def, pattern);
    }

    // Always applyPattern after the symbols are set
    this.symbols = new DecimalFormatSymbols(def);
    applyPattern(pattern, false);
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
/**
 * Returns a name for the locale's variant code that is appropriate for display to the
 * user.  If possible, the name will be localized for inLocale.  If the locale
 * doesn't specify a variant code, this function returns the empty string.
 *
 * @exception NullPointerException if <code>inLocale</code> is <code>null</code>
 */
public String getDisplayVariant(Locale inLocale) {
    if (variant.length() == 0)
        return "";

    OpenListResourceBundle bundle = LocaleData.getLocaleNames(inLocale);

    String names[] = getDisplayVariantArray(bundle, inLocale);

    // Get the localized patterns for formatting a list, and use
    // them to format the list.
    String listPattern = null;
    String listCompositionPattern = null;
    try {
        listPattern = bundle.getString("ListPattern");
        listCompositionPattern = bundle.getString("ListCompositionPattern");
    } catch (MissingResourceException e) {
    }
    return formatList(names, listPattern, listCompositionPattern);
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
private void initializeData(Locale desiredLocale) {
    locale = desiredLocale;

    // Copy values of a cached instance if any.
    SoftReference<DateFormatSymbols> ref = cachedInstances.get(locale);
    DateFormatSymbols dfs;
    if (ref != null && (dfs = ref.get()) != null) {
        copyMembers(dfs, this);
        return;
    }

    // Initialize the fields from the ResourceBundle for locale.
    ResourceBundle resource = LocaleData.getDateFormatData(locale);

    eras = resource.getStringArray("Eras");
    months = resource.getStringArray("MonthNames");
    shortMonths = resource.getStringArray("MonthAbbreviations");
    ampms = resource.getStringArray("AmPmMarkers");
    localPatternChars = resource.getString("DateTimePatternChars");

    // Day of week names are stored in a 1-based array.
    weekdays = toOneBasedArray(resource.getStringArray("DayNames"));
    shortWeekdays = toOneBasedArray(resource.getStringArray("DayAbbreviations"));
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
/**
 * Creates a DecimalFormat using the default pattern and symbols
 * for the default locale. This is a convenient way to obtain a
 * DecimalFormat when internationalization is not the main concern.
 * <p>
 * To obtain standard formats for a given locale, use the factory methods
 * on NumberFormat such as getNumberInstance. These factories will
 * return the most appropriate sub-class of NumberFormat for a given
 * locale.
 *
 * @see java.text.NumberFormat#getInstance
 * @see java.text.NumberFormat#getNumberInstance
 * @see java.text.NumberFormat#getCurrencyInstance
 * @see java.text.NumberFormat#getPercentInstance
 */
public DecimalFormat() {
    Locale def = Locale.getDefault(Locale.Category.FORMAT);
    // try to get the pattern from the cache
    String pattern = cachedLocaleData.get(def);
    if (pattern == null) {  /* cache miss */
        // Get the pattern for the default locale.
        ResourceBundle rb = LocaleData.getNumberFormatData(def);
        String[] all = rb.getStringArray("NumberPatterns");
        pattern = all[0];
        /* update cache */
        cachedLocaleData.putIfAbsent(def, pattern);
    }

    // Always applyPattern after the symbols are set
    this.symbols = new DecimalFormatSymbols(def);
    applyPattern(pattern, false);
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
/**
 * Returns a name for the locale's variant code that is appropriate for display to the
 * user.  If possible, the name will be localized for inLocale.  If the locale
 * doesn't specify a variant code, this function returns the empty string.
 *
 * @exception NullPointerException if <code>inLocale</code> is <code>null</code>
 */
public String getDisplayVariant(Locale inLocale) {
    if (baseLocale.getVariant().length() == 0)
        return "";

    OpenListResourceBundle bundle = LocaleData.getLocaleNames(inLocale);

    String names[] = getDisplayVariantArray(bundle, inLocale);

    // Get the localized patterns for formatting a list, and use
    // them to format the list.
    String listPattern = null;
    String listCompositionPattern = null;
    try {
        listPattern = bundle.getString("ListPattern");
        listCompositionPattern = bundle.getString("ListCompositionPattern");
    } catch (MissingResourceException e) {
    }
    return formatList(names, listPattern, listCompositionPattern);
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
public String getDisplayName(int field, int style, Locale locale) {
    if (field != ERA) {
        return super.getDisplayName(field, style, locale);
    }

    // Handle Thai BuddhistCalendar specific era names
    if (field < 0 || field >= fields.length ||
        style < SHORT || style > LONG) {
        throw new IllegalArgumentException();
    }
    if (locale == null) {
        throw new NullPointerException();
    }
    ResourceBundle rb = LocaleData.getDateFormatData(locale);
    String[] eras = rb.getStringArray(getKey(style));
    return eras[get(field)];
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
/**
 * Returns an array of available locales (already normalized for
 * service lookup) supported by the JRE.
 * Note that this method does not return a defensive copy.
 *
 * @return list of the available JRE locales
 */
private List<Locale> getJRELocales() {
    if (availableJRELocales == null) {
        synchronized (LocaleServiceProviderPool.class) {
            if (availableJRELocales == null) {
                Locale[] allLocales = LocaleData.getAvailableLocales();
                List<Locale> tmpList = new ArrayList<>(allLocales.length);
                for (Locale locale : allLocales) {
                    tmpList.add(getLookupLocale(locale));
                }
                availableJRELocales = tmpList;
            }
        }
    }
    return availableJRELocales;
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
private static NumberFormat getInstance(Locale desiredLocale,
                                       int choice) {
    // Check whether a provider can provide an implementation that's closer 
    // to the requested locale than what the Java runtime itself can provide.
    LocaleServiceProviderPool pool =
        LocaleServiceProviderPool.getPool(NumberFormatProvider.class);
    if (pool.hasProviders()) {
        NumberFormat providersInstance = pool.getLocalizedObject(
                                NumberFormatGetter.INSTANCE,
                                desiredLocale,
                                choice);
        if (providersInstance != null) {
            return providersInstance;
        }
    }

    /* try the cache first */
    String[] numberPatterns = (String[])cachedLocaleData.get(desiredLocale);
    if (numberPatterns == null) { /* cache miss */
        ResourceBundle resource = LocaleData.getNumberFormatData(desiredLocale);
        numberPatterns = resource.getStringArray("NumberPatterns");
        /* update cache */
        cachedLocaleData.put(desiredLocale, numberPatterns);
    }

    DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(desiredLocale);
    int entry = (choice == INTEGERSTYLE) ? NUMBERSTYLE : choice;
    DecimalFormat format = new DecimalFormat(numberPatterns[entry], symbols);
    
    if (choice == INTEGERSTYLE) {
        format.setMaximumFractionDigits(0);
        format.setDecimalSeparatorAlwaysShown(false);
        format.setParseIntegerOnly(true);
    } else if (choice == CURRENCYSTYLE) {
        format.adjustForCurrencyDefaultFractionDigits();
    }

    return format;
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
private String getDisplayString(String code, Locale inLocale, int type) {
    if (code.length() == 0) {
        return "";
    }

    if (inLocale == null) {
        throw new NullPointerException();
    }

    try {
        OpenListResourceBundle bundle = LocaleData.getLocaleNames(inLocale);
        String key = (type == DISPLAY_VARIANT ? "%%"+code : code);
        String result = null;

        // Check whether a provider can provide an implementation that's closer 
        // to the requested locale than what the Java runtime itself can provide.
        LocaleServiceProviderPool pool =
            LocaleServiceProviderPool.getPool(LocaleNameProvider.class);
        if (pool.hasProviders()) {
            result = pool.getLocalizedObject(
                                LocaleNameGetter.INSTANCE,
                                inLocale, bundle, key,
                                type, code);
        }

        if (result == null) {
            result = bundle.getString(key);
        }

        if (result != null) {
            return result;
        }
    }
    catch (Exception e) {
        // just fall through
    }
    return code;
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
/**
 * Gets the symbol of this currency for the specified locale.
 * For example, for the US Dollar, the symbol is "$" if the specified
 * locale is the US, while for other locales it may be "US$". If no
 * symbol can be determined, the ISO 4217 currency code is returned.
 *
 * @param locale the locale for which a display name for this currency is
 * needed
 * @return the symbol of this currency for the specified locale
 * @exception NullPointerException if <code>locale</code> is null
 */
public String getSymbol(Locale locale) {
    try {
        // Check whether a provider can provide an implementation that's closer 
        // to the requested locale than what the Java runtime itself can provide.
        LocaleServiceProviderPool pool =
            LocaleServiceProviderPool.getPool(CurrencyNameProvider.class);

        if (pool.hasProviders()) {
            // Assuming that all the country locales include necessary currency 
            // symbols in the Java runtime's resources,  so there is no need to
            // examine whether Java runtime's currency resource bundle is missing 
            // names.  Therefore, no resource bundle is provided for calling this 
            // method.
            String symbol = pool.getLocalizedObject(
                                CurrencyNameGetter.INSTANCE,
                                locale, null, currencyCode);
            if (symbol != null) {
                return symbol;
            }
        }

        ResourceBundle bundle = LocaleData.getCurrencyNames(locale);
        return bundle.getString(currencyCode);
    } catch (MissingResourceException e) {
        // use currency code as symbol of last resort
        return currencyCode;
    }
}
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
/**
    * Both firstDayOfWeek and minimalDaysInFirstWeek are locale-dependent.
    * They are used to figure out the week count for a specific date for
    * a given locale. These must be set when a Calendar is constructed.
    * @param desiredLocale the given locale.
    */
   private void setWeekCountData(Locale desiredLocale)
   {
/* try to get the Locale data from the cache */
int[] data = cachedLocaleData.get(desiredLocale);
if (data == null) {  /* cache miss */
    ResourceBundle bundle = LocaleData.getCalendarData(desiredLocale);
    data = new int[2];
    data[0] = Integer.parseInt(bundle.getString("firstDayOfWeek"));
    data[1] = Integer.parseInt(bundle.getString("minimalDaysInFirstWeek"));
    cachedLocaleData.put(desiredLocale, data);
}
firstDayOfWeek = data[0];
minimalDaysInFirstWeek = data[1];
   }
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
public String getDisplayName(int field, int style, Locale locale) {
if (!checkDisplayNameParams(field, style, SHORT, LONG, locale,
			    ERA_MASK|YEAR_MASK|MONTH_MASK|DAY_OF_WEEK_MASK|AM_PM_MASK)) {
    return null;
}

// "GanNen" is supported only in the LONG style.
if (field == YEAR
    && (style == SHORT || get(YEAR) != 1 || get(ERA) == 0)) {
    return null;
}

ResourceBundle rb = LocaleData.getDateFormatData(locale);
String name = null;
String key = getKey(field, style);
if (key != null) {
    String[] strings = rb.getStringArray(key);
    if (field == YEAR) {
	if (strings.length > 0) {
	    name = strings[0];
	}
    } else {
	int index = get(field);
	// If the ERA value is out of range for strings, then
	// try to get its name or abbreviation from the Era instance.
	if (field == ERA && index >= strings.length && index < eras.length) {
	    Era era = eras[index];
	    name = (style == SHORT) ? era.getAbbreviation() : era.getName();
	} else {
	    if (field == DAY_OF_WEEK)
		--index;
	    name = strings[index];
	}
    }
}
return name;
   }
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
private Map<String,Integer> getDisplayNamesImpl(int field, int style, Locale locale) {
ResourceBundle rb = LocaleData.getDateFormatData(locale);
String key = getKey(field, style);
Map<String,Integer> map = new HashMap<String,Integer>();
if (key != null) {
    String[] strings = rb.getStringArray(key);
    if (field == YEAR) {
	if (strings.length > 0) {
	    map.put(strings[0], 1);
	}
    } else {
	int base = (field == DAY_OF_WEEK) ? 1 : 0;
	for (int i = 0; i < strings.length; i++) {
	    map.put(strings[i], base + i);
	}
	// If strings[] has fewer than eras[], get more names from eras[].
	if (field == ERA && strings.length < eras.length) {
	    for (int i = strings.length; i < eras.length; i++) {
		Era era = eras[i];
		String name = (style == SHORT) ? era.getAbbreviation() : era.getName();
		map.put(name, i);
	    }
	}
    }
}
return map.size() > 0 ? map : null;
   }
 

import sun.util.resources.LocaleData; //导入依赖的package包/类
private static NumberFormat getInstance(Locale desiredLocale,
                                       int choice) {
    // Check whether a provider can provide an implementation that's closer
    // to the requested locale than what the Java runtime itself can provide.
    LocaleServiceProviderPool pool =
        LocaleServiceProviderPool.getPool(NumberFormatProvider.class);
    if (pool.hasProviders()) {
        NumberFormat providersInstance = pool.getLocalizedObject(
                                NumberFormatGetter.INSTANCE,
                                desiredLocale,
                                choice);
        if (providersInstance != null) {
            return providersInstance;
        }
    }

    /* try the cache first */
    String[] numberPatterns = (String[])cachedLocaleData.get(desiredLocale);
    if (numberPatterns == null) { /* cache miss */
        ResourceBundle resource = LocaleData.getNumberFormatData(desiredLocale);
        numberPatterns = resource.getStringArray("NumberPatterns");
        /* update cache */
        cachedLocaleData.put(desiredLocale, numberPatterns);
    }

    DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(desiredLocale);
    int entry = (choice == INTEGERSTYLE) ? NUMBERSTYLE : choice;
    DecimalFormat format = new DecimalFormat(numberPatterns[entry], symbols);

    if (choice == INTEGERSTYLE) {
        format.setMaximumFractionDigits(0);
        format.setDecimalSeparatorAlwaysShown(false);
        format.setParseIntegerOnly(true);
    } else if (choice == CURRENCYSTYLE) {
        format.adjustForCurrencyDefaultFractionDigits();
    }

    return format;
}