jdk/src/share/classes/sun/util/locale/provider/LocaleResources.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */

 /*
  * (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
  * (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved
  *
  * The original version of this source code and documentation
  * is copyrighted and owned by Taligent, Inc., a wholly-owned
  * subsidiary of IBM. These materials are provided under terms
  * of a License Agreement between Taligent and Sun. This technology
  * is protected by multiple US and International patents.
  *
  * This notice and attribution to Taligent may not be removed.
  * Taligent is a registered trademark of Taligent, Inc.
  *
  */

 package sun.util.locale.provider;

 import java.lang.ref.ReferenceQueue;
 import java.lang.ref.SoftReference;
 import java.text.MessageFormat;
 import java.util.Calendar;
 import java.util.LinkedHashSet;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Objects;
 import java.util.ResourceBundle;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 import sun.util.calendar.ZoneInfo;
 import sun.util.resources.LocaleData;
 import sun.util.resources.OpenListResourceBundle;
 import sun.util.resources.ParallelListResourceBundle;
 import sun.util.resources.TimeZoneNamesBundle;

 /**
  * Central accessor to locale-dependent resources for JRE/CLDR provider adapters.
  *
  * @author Masayoshi Okutsu
  * @author Naoto Sato
  */
 public class LocaleResources {

     private final Locale locale;
     private final LocaleData localeData;
     private final LocaleProviderAdapter.Type type;

     // Resource cache
     private ConcurrentMap<String, ResourceReference> cache = new ConcurrentHashMap<>();
     private ReferenceQueue<Object> referenceQueue = new ReferenceQueue<>();

     // cache key prefixes
     private static final String BREAK_ITERATOR_INFO = "BII.";
     private static final String CALENDAR_DATA = "CALD.";
     private static final String COLLATION_DATA_CACHEKEY = "COLD";
     private static final String DECIMAL_FORMAT_SYMBOLS_DATA_CACHEKEY = "DFSD";
     private static final String CURRENCY_NAMES = "CN.";
     private static final String LOCALE_NAMES = "LN.";
     private static final String TIME_ZONE_NAMES = "TZN.";
     private static final String ZONE_IDS_CACHEKEY = "ZID";
     private static final String CALENDAR_NAMES = "CALN.";
     private static final String NUMBER_PATTERNS_CACHEKEY = "NP";
     private static final String DATE_TIME_PATTERN = "DTP.";

     // null singleton cache value
     private static final Object NULLOBJECT = new Object();

     LocaleResources(ResourceBundleBasedAdapter adapter, Locale locale) {
         this.locale = locale;
         this.localeData = adapter.getLocaleData();
         type = ((LocaleProviderAdapter)adapter).getAdapterType();
     }

     private void removeEmptyReferences() {
         Object ref;
         while ((ref = referenceQueue.poll()) != null) {
             cache.remove(((ResourceReference)ref).getCacheKey());
         }
     }

     Object getBreakIteratorInfo(String key) {
         Object biInfo;
         String cacheKey = BREAK_ITERATOR_INFO + key;

         removeEmptyReferences();
         ResourceReference data = cache.get(cacheKey);
         if (data == null || ((biInfo = data.get()) == null)) {
            biInfo = localeData.getBreakIteratorInfo(locale).getObject(key);
            cache.put(cacheKey, new ResourceReference(cacheKey, biInfo, referenceQueue));
        }

        return biInfo;
     }

     int getCalendarData(String key) {
         Integer caldata;
         String cacheKey = CALENDAR_DATA  + key;

         removeEmptyReferences();

         ResourceReference data = cache.get(cacheKey);
         if (data == null || ((caldata = (Integer) data.get()) == null)) {
             ResourceBundle rb = localeData.getCalendarData(locale);
             if (rb.containsKey(key)) {
                 caldata = Integer.parseInt(rb.getString(key));
             } else {
                 caldata = 0;
             }

             cache.put(cacheKey,
                       new ResourceReference(cacheKey, (Object) caldata, referenceQueue));
         }

         return caldata;
     }

     public String getCollationData() {
         String key = "Rule";
         String coldata = "";

         removeEmptyReferences();
         ResourceReference data = cache.get(COLLATION_DATA_CACHEKEY);
         if (data == null || ((coldata = (String) data.get()) == null)) {
             ResourceBundle rb = localeData.getCollationData(locale);
             if (rb.containsKey(key)) {
                 coldata = rb.getString(key);
             }
             cache.put(COLLATION_DATA_CACHEKEY,
                       new ResourceReference(COLLATION_DATA_CACHEKEY, (Object) coldata, referenceQueue));
         }

         return coldata;
     }

     public Object[] getDecimalFormatSymbolsData() {
         Object[] dfsdata;

         removeEmptyReferences();
         ResourceReference data = cache.get(DECIMAL_FORMAT_SYMBOLS_DATA_CACHEKEY);
         if (data == null || ((dfsdata = (Object[]) data.get()) == null)) {
             // Note that only dfsdata[0] is prepared here in this method. Other
             // elements are provided by the caller, yet they are cached here.
             ResourceBundle rb = localeData.getNumberFormatData(locale);
             dfsdata = new Object[3];

             // NumberElements look up. First, try the Unicode extension
             String numElemKey;
             String numberType = locale.getUnicodeLocaleType("nu");
             if (numberType != null) {
                 numElemKey = numberType + ".NumberElements";
                 if (rb.containsKey(numElemKey)) {
                     dfsdata[0] = rb.getStringArray(numElemKey);
                 }
             }

             // Next, try DefaultNumberingSystem value
             if (dfsdata[0] == null && rb.containsKey("DefaultNumberingSystem")) {
                 numElemKey = rb.getString("DefaultNumberingSystem") + ".NumberElements";
                 if (rb.containsKey(numElemKey)) {
                     dfsdata[0] = rb.getStringArray(numElemKey);
                 }
             }

             // Last resort. No need to check the availability.
             // Just let it throw MissingResourceException when needed.
             if (dfsdata[0] == null) {
                 dfsdata[0] = rb.getStringArray("NumberElements");
             }

             cache.put(DECIMAL_FORMAT_SYMBOLS_DATA_CACHEKEY,
                       new ResourceReference(DECIMAL_FORMAT_SYMBOLS_DATA_CACHEKEY, (Object) dfsdata, referenceQueue));
         }

         return dfsdata;
     }

     public String getCurrencyName(String key) {
         Object currencyName = null;
         String cacheKey = CURRENCY_NAMES + key;

         removeEmptyReferences();
         ResourceReference data = cache.get(cacheKey);

         if (data != null && ((currencyName = data.get()) != null)) {
             if (currencyName.equals(NULLOBJECT)) {
                 currencyName = null;
             }

             return (String) currencyName;
         }

         OpenListResourceBundle olrb = localeData.getCurrencyNames(locale);

         if (olrb.containsKey(key)) {
             currencyName = olrb.getObject(key);
             cache.put(cacheKey,
                       new ResourceReference(cacheKey, currencyName, referenceQueue));
         }

         return (String) currencyName;
     }

     public String getLocaleName(String key) {
         Object localeName = null;
         String cacheKey = LOCALE_NAMES + key;

         removeEmptyReferences();
         ResourceReference data = cache.get(cacheKey);

         if (data != null && ((localeName = data.get()) != null)) {
             if (localeName.equals(NULLOBJECT)) {
                 localeName = null;
             }

             return (String) localeName;
         }

         OpenListResourceBundle olrb = localeData.getLocaleNames(locale);

         if (olrb.containsKey(key)) {
             localeName = olrb.getObject(key);
             cache.put(cacheKey,
                       new ResourceReference(cacheKey, localeName, referenceQueue));
         }

         return (String) localeName;
     }

     String[] getTimeZoneNames(String key) {
         String[] names = null;
         String cacheKey = TIME_ZONE_NAMES + '.' + key;

         removeEmptyReferences();
         ResourceReference data = cache.get(cacheKey);

         if (Objects.isNull(data) || Objects.isNull((names = (String[]) data.get()))) {
             TimeZoneNamesBundle tznb = localeData.getTimeZoneNames(locale);
             if (tznb.containsKey(key)) {
                 names = tznb.getStringArray(key);
                 cache.put(cacheKey,
                           new ResourceReference(cacheKey, (Object) names, referenceQueue));
             }
         }

         return names;
     }

     @SuppressWarnings("unchecked")
     Set<String> getZoneIDs() {
         Set<String> zoneIDs = null;

         removeEmptyReferences();
         ResourceReference data = cache.get(ZONE_IDS_CACHEKEY);
         if (data == null || ((zoneIDs = (Set<String>) data.get()) == null)) {
             TimeZoneNamesBundle rb = localeData.getTimeZoneNames(locale);
             zoneIDs = rb.keySet();
             cache.put(ZONE_IDS_CACHEKEY,
                       new ResourceReference(ZONE_IDS_CACHEKEY, (Object) zoneIDs, referenceQueue));
         }

         return zoneIDs;
     }

     // zoneStrings are cached separately in TimeZoneNameUtility.
     String[][] getZoneStrings() {
         TimeZoneNamesBundle rb = localeData.getTimeZoneNames(locale);
         Set<String> keyset = getZoneIDs();
         // Use a LinkedHashSet to preseve the order
         Set<String[]> value = new LinkedHashSet<>();
         for (String key : keyset) {
             value.add(rb.getStringArray(key));
         }

         // Add aliases data for CLDR
         if (type == LocaleProviderAdapter.Type.CLDR) {
             // Note: TimeZoneNamesBundle creates a String[] on each getStringArray call.
             Map<String, String> aliases = ZoneInfo.getAliasTable();
             for (String alias : aliases.keySet()) {
                 if (!keyset.contains(alias)) {
                     String tzid = aliases.get(alias);
                     if (keyset.contains(tzid)) {
                         String[] val = rb.getStringArray(tzid);
                         val[0] = alias;
                         value.add(val);
                     }
                 }
             }
         }
         return value.toArray(new String[0][]);
     }

     String[] getCalendarNames(String key) {
         String[] names = null;
         String cacheKey = CALENDAR_NAMES + key;

         removeEmptyReferences();
         ResourceReference data = cache.get(cacheKey);

         if (data == null || ((names = (String[]) data.get()) == null)) {
             ResourceBundle rb = localeData.getDateFormatData(locale);
             if (rb.containsKey(key)) {
                 names = rb.getStringArray(key);
                 cache.put(cacheKey,
                           new ResourceReference(cacheKey, (Object) names, referenceQueue));
             }
         }

         return names;
     }

     String[] getJavaTimeNames(String key) {
         String[] names = null;
         String cacheKey = CALENDAR_NAMES + key;

         removeEmptyReferences();
         ResourceReference data = cache.get(cacheKey);

         if (data == null || ((names = (String[]) data.get()) == null)) {
             ResourceBundle rb = getJavaTimeFormatData();
             if (rb.containsKey(key)) {
                 names = rb.getStringArray(key);
                 cache.put(cacheKey,
                           new ResourceReference(cacheKey, (Object) names, referenceQueue));
             }
         }

         return names;
     }

     public String getDateTimePattern(int timeStyle, int dateStyle, Calendar cal) {
         if (cal == null) {
             cal = Calendar.getInstance(locale);
         }
         return getDateTimePattern(null, timeStyle, dateStyle, cal.getCalendarType());
     }

     /**
      * Returns a date-time format pattern
      * @param timeStyle style of time; one of FULL, LONG, MEDIUM, SHORT in DateFormat,
      *                  or -1 if not required
      * @param dateStyle style of time; one of FULL, LONG, MEDIUM, SHORT in DateFormat,
      *                  or -1 if not required
      * @param calType   the calendar type for the pattern
      * @return the pattern string
      */
     public String getJavaTimeDateTimePattern(int timeStyle, int dateStyle, String calType) {
         calType = CalendarDataUtility.normalizeCalendarType(calType);
         String pattern;
         pattern = getDateTimePattern("java.time.", timeStyle, dateStyle, calType);
         if (pattern == null) {
             pattern = getDateTimePattern(null, timeStyle, dateStyle, calType);
         }
         return pattern;
     }

     private String getDateTimePattern(String prefix, int timeStyle, int dateStyle, String calType) {
         String pattern;
         String timePattern = null;
         String datePattern = null;

         if (timeStyle >= 0) {
             if (prefix != null) {
                 timePattern = getDateTimePattern(prefix, "TimePatterns", timeStyle, calType);
             }
             if (timePattern == null) {
                 timePattern = getDateTimePattern(null, "TimePatterns", timeStyle, calType);
             }
         }
         if (dateStyle >= 0) {
             if (prefix != null) {
                 datePattern = getDateTimePattern(prefix, "DatePatterns", dateStyle, calType);
             }
             if (datePattern == null) {
                 datePattern = getDateTimePattern(null, "DatePatterns", dateStyle, calType);
             }
         }
         if (timeStyle >= 0) {
             if (dateStyle >= 0) {
                 String dateTimePattern = null;
                 if (prefix != null) {
                     dateTimePattern = getDateTimePattern(prefix, "DateTimePatterns", 0, calType);
                 }
                 if (dateTimePattern == null) {
                     dateTimePattern = getDateTimePattern(null, "DateTimePatterns", 0, calType);
                 }
                 switch (dateTimePattern) {
                 case "{1} {0}":
                     pattern = datePattern + " " + timePattern;
                     break;
                 case "{0} {1}":
                     pattern = timePattern + " " + datePattern;
                     break;
                 default:
                     pattern = MessageFormat.format(dateTimePattern, timePattern, datePattern);
                     break;
                 }
             } else {
                 pattern = timePattern;
             }
         } else if (dateStyle >= 0) {
             pattern = datePattern;
         } else {
             throw new IllegalArgumentException("No date or time style specified");
         }
         return pattern;
     }

     public String[] getNumberPatterns() {
         String[] numberPatterns = null;

         removeEmptyReferences();
         ResourceReference data = cache.get(NUMBER_PATTERNS_CACHEKEY);

         if (data == null || ((numberPatterns = (String[]) data.get()) == null)) {
             ResourceBundle resource = localeData.getNumberFormatData(locale);
             numberPatterns = resource.getStringArray("NumberPatterns");
             cache.put(NUMBER_PATTERNS_CACHEKEY,
                       new ResourceReference(NUMBER_PATTERNS_CACHEKEY, (Object) numberPatterns, referenceQueue));
         }

         return numberPatterns;
     }

     /**
      * Returns the FormatData resource bundle of this LocaleResources.
      * The FormatData should be used only for accessing extra
      * resources required by JSR 310.
      */
     public ResourceBundle getJavaTimeFormatData() {
         ResourceBundle rb = localeData.getDateFormatData(locale);
         if (rb instanceof ParallelListResourceBundle) {
             localeData.setSupplementary((ParallelListResourceBundle) rb);
         }
         return rb;
     }

     private String getDateTimePattern(String prefix, String key, int styleIndex, String calendarType) {
         StringBuilder sb = new StringBuilder();
         if (prefix != null) {
             sb.append(prefix);
         }
         if (!"gregory".equals(calendarType)) {
             sb.append(calendarType).append('.');
         }
         sb.append(key);
         String resourceKey = sb.toString();
         String cacheKey = sb.insert(0, DATE_TIME_PATTERN).toString();

         removeEmptyReferences();
         ResourceReference data = cache.get(cacheKey);
         Object value = NULLOBJECT;

         if (data == null || ((value = data.get()) == null)) {
             ResourceBundle r = (prefix != null) ? getJavaTimeFormatData() : localeData.getDateFormatData(locale);
             if (r.containsKey(resourceKey)) {
                 value = r.getStringArray(resourceKey);
             } else {
                 assert !resourceKey.equals(key);
                 if (r.containsKey(key)) {
                     value = r.getStringArray(key);
                 }
             }
             cache.put(cacheKey,
                       new ResourceReference(cacheKey, value, referenceQueue));
         }
         if (value == NULLOBJECT) {
             assert prefix != null;
             return null;
         }
         return ((String[])value)[styleIndex];
     }

     private static class ResourceReference extends SoftReference<Object> {
         private final String cacheKey;

         ResourceReference(String cacheKey, Object o, ReferenceQueue<Object> q) {
             super(o, q);
             this.cacheKey = cacheKey;
         }

         String getCacheKey() {
             return cacheKey;
         }
     }
 }
	/*
	* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	/*
	* (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
	* (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved
	*
	* The original version of this source code and documentation
	* is copyrighted and owned by Taligent, Inc., a wholly-owned
	* subsidiary of IBM. These materials are provided under terms
	* of a License Agreement between Taligent and Sun. This technology
	* is protected by multiple US and International patents.
	*
	* This notice and attribution to Taligent may not be removed.
	* Taligent is a registered trademark of Taligent, Inc.
	*
	*/

	package sun.util.locale.provider;

	import java.lang.ref.ReferenceQueue;
	import java.lang.ref.SoftReference;
	import java.text.MessageFormat;
	import java.util.Calendar;
	import java.util.LinkedHashSet;
	import java.util.Locale;
	import java.util.Map;
	import java.util.Objects;
	import java.util.ResourceBundle;
	import java.util.Set;
	import java.util.concurrent.ConcurrentHashMap;
	import java.util.concurrent.ConcurrentMap;
	import sun.util.calendar.ZoneInfo;
	import sun.util.resources.LocaleData;
	import sun.util.resources.OpenListResourceBundle;
	import sun.util.resources.ParallelListResourceBundle;
	import sun.util.resources.TimeZoneNamesBundle;

	/**
	* Central accessor to locale-dependent resources for JRE/CLDR provider adapters.
	*
	* @author Masayoshi Okutsu
	* @author Naoto Sato
	*/
	public class LocaleResources {

	private final Locale locale;
	private final LocaleData localeData;
	private final LocaleProviderAdapter.Type type;

	// Resource cache
	private ConcurrentMap<String, ResourceReference> cache = new ConcurrentHashMap<>();
	private ReferenceQueue<Object> referenceQueue = new ReferenceQueue<>();

	// cache key prefixes
	private static final String BREAK_ITERATOR_INFO = "BII.";
	private static final String CALENDAR_DATA = "CALD.";
	private static final String COLLATION_DATA_CACHEKEY = "COLD";
	private static final String DECIMAL_FORMAT_SYMBOLS_DATA_CACHEKEY = "DFSD";
	private static final String CURRENCY_NAMES = "CN.";
	private static final String LOCALE_NAMES = "LN.";
	private static final String TIME_ZONE_NAMES = "TZN.";
	private static final String ZONE_IDS_CACHEKEY = "ZID";
	private static final String CALENDAR_NAMES = "CALN.";
	private static final String NUMBER_PATTERNS_CACHEKEY = "NP";
	private static final String DATE_TIME_PATTERN = "DTP.";

	// null singleton cache value
	private static final Object NULLOBJECT = new Object();

	LocaleResources(ResourceBundleBasedAdapter adapter, Locale locale) {
	this.locale = locale;
	this.localeData = adapter.getLocaleData();
	type = ((LocaleProviderAdapter)adapter).getAdapterType();
	}

	private void removeEmptyReferences() {
	Object ref;
	while ((ref = referenceQueue.poll()) != null) {
	cache.remove(((ResourceReference)ref).getCacheKey());
	}
	}

	Object getBreakIteratorInfo(String key) {
	Object biInfo;
	String cacheKey = BREAK_ITERATOR_INFO + key;

	removeEmptyReferences();
	ResourceReference data = cache.get(cacheKey);
	if (data == null \|\| ((biInfo = data.get()) == null)) {
	biInfo = localeData.getBreakIteratorInfo(locale).getObject(key);
	cache.put(cacheKey, new ResourceReference(cacheKey, biInfo, referenceQueue));
	}

	return biInfo;
	}

	int getCalendarData(String key) {
	Integer caldata;
	String cacheKey = CALENDAR_DATA + key;

	removeEmptyReferences();

	ResourceReference data = cache.get(cacheKey);
	if (data == null \|\| ((caldata = (Integer) data.get()) == null)) {
	ResourceBundle rb = localeData.getCalendarData(locale);
	if (rb.containsKey(key)) {
	caldata = Integer.parseInt(rb.getString(key));
	} else {
	caldata = 0;
	}

	cache.put(cacheKey,
	new ResourceReference(cacheKey, (Object) caldata, referenceQueue));
	}

	return caldata;
	}

	public String getCollationData() {
	String key = "Rule";
	String coldata = "";

	removeEmptyReferences();
	ResourceReference data = cache.get(COLLATION_DATA_CACHEKEY);
	if (data == null \|\| ((coldata = (String) data.get()) == null)) {
	ResourceBundle rb = localeData.getCollationData(locale);
	if (rb.containsKey(key)) {
	coldata = rb.getString(key);
	}
	cache.put(COLLATION_DATA_CACHEKEY,
	new ResourceReference(COLLATION_DATA_CACHEKEY, (Object) coldata, referenceQueue));
	}

	return coldata;
	}

	public Object[] getDecimalFormatSymbolsData() {
	Object[] dfsdata;

	removeEmptyReferences();
	ResourceReference data = cache.get(DECIMAL_FORMAT_SYMBOLS_DATA_CACHEKEY);
	if (data == null \|\| ((dfsdata = (Object[]) data.get()) == null)) {
	// Note that only dfsdata[0] is prepared here in this method. Other
	// elements are provided by the caller, yet they are cached here.
	ResourceBundle rb = localeData.getNumberFormatData(locale);
	dfsdata = new Object[3];

	// NumberElements look up. First, try the Unicode extension
	String numElemKey;
	String numberType = locale.getUnicodeLocaleType("nu");
	if (numberType != null) {
	numElemKey = numberType + ".NumberElements";
	if (rb.containsKey(numElemKey)) {
	dfsdata[0] = rb.getStringArray(numElemKey);
	}
	}

	// Next, try DefaultNumberingSystem value
	if (dfsdata[0] == null && rb.containsKey("DefaultNumberingSystem")) {
	numElemKey = rb.getString("DefaultNumberingSystem") + ".NumberElements";
	if (rb.containsKey(numElemKey)) {
	dfsdata[0] = rb.getStringArray(numElemKey);
	}
	}

	// Last resort. No need to check the availability.
	// Just let it throw MissingResourceException when needed.
	if (dfsdata[0] == null) {
	dfsdata[0] = rb.getStringArray("NumberElements");
	}

	cache.put(DECIMAL_FORMAT_SYMBOLS_DATA_CACHEKEY,
	new ResourceReference(DECIMAL_FORMAT_SYMBOLS_DATA_CACHEKEY, (Object) dfsdata, referenceQueue));
	}

	return dfsdata;
	}

	public String getCurrencyName(String key) {
	Object currencyName = null;
	String cacheKey = CURRENCY_NAMES + key;

	removeEmptyReferences();
	ResourceReference data = cache.get(cacheKey);

	if (data != null && ((currencyName = data.get()) != null)) {
	if (currencyName.equals(NULLOBJECT)) {
	currencyName = null;
	}

	return (String) currencyName;
	}

	OpenListResourceBundle olrb = localeData.getCurrencyNames(locale);

	if (olrb.containsKey(key)) {
	currencyName = olrb.getObject(key);
	cache.put(cacheKey,
	new ResourceReference(cacheKey, currencyName, referenceQueue));
	}

	return (String) currencyName;
	}

	public String getLocaleName(String key) {
	Object localeName = null;
	String cacheKey = LOCALE_NAMES + key;

	removeEmptyReferences();
	ResourceReference data = cache.get(cacheKey);

	if (data != null && ((localeName = data.get()) != null)) {
	if (localeName.equals(NULLOBJECT)) {
	localeName = null;
	}

	return (String) localeName;
	}

	OpenListResourceBundle olrb = localeData.getLocaleNames(locale);

	if (olrb.containsKey(key)) {
	localeName = olrb.getObject(key);
	cache.put(cacheKey,
	new ResourceReference(cacheKey, localeName, referenceQueue));
	}

	return (String) localeName;
	}

	String[] getTimeZoneNames(String key) {
	String[] names = null;
	String cacheKey = TIME_ZONE_NAMES + '.' + key;

	removeEmptyReferences();
	ResourceReference data = cache.get(cacheKey);

	if (Objects.isNull(data) \|\| Objects.isNull((names = (String[]) data.get()))) {
	TimeZoneNamesBundle tznb = localeData.getTimeZoneNames(locale);
	if (tznb.containsKey(key)) {
	names = tznb.getStringArray(key);
	cache.put(cacheKey,
	new ResourceReference(cacheKey, (Object) names, referenceQueue));
	}
	}

	return names;
	}

	@SuppressWarnings("unchecked")
	Set<String> getZoneIDs() {
	Set<String> zoneIDs = null;

	removeEmptyReferences();
	ResourceReference data = cache.get(ZONE_IDS_CACHEKEY);
	if (data == null \|\| ((zoneIDs = (Set<String>) data.get()) == null)) {
	TimeZoneNamesBundle rb = localeData.getTimeZoneNames(locale);
	zoneIDs = rb.keySet();
	cache.put(ZONE_IDS_CACHEKEY,
	new ResourceReference(ZONE_IDS_CACHEKEY, (Object) zoneIDs, referenceQueue));
	}

	return zoneIDs;
	}

	// zoneStrings are cached separately in TimeZoneNameUtility.
	String[][] getZoneStrings() {
	TimeZoneNamesBundle rb = localeData.getTimeZoneNames(locale);
	Set<String> keyset = getZoneIDs();
	// Use a LinkedHashSet to preseve the order
	Set<String[]> value = new LinkedHashSet<>();
	for (String key : keyset) {
	value.add(rb.getStringArray(key));
	}

	// Add aliases data for CLDR
	if (type == LocaleProviderAdapter.Type.CLDR) {
	// Note: TimeZoneNamesBundle creates a String[] on each getStringArray call.
	Map<String, String> aliases = ZoneInfo.getAliasTable();
	for (String alias : aliases.keySet()) {
	if (!keyset.contains(alias)) {
	String tzid = aliases.get(alias);
	if (keyset.contains(tzid)) {
	String[] val = rb.getStringArray(tzid);
	val[0] = alias;
	value.add(val);
	}
	}
	}
	}
	return value.toArray(new String[0][]);
	}

	String[] getCalendarNames(String key) {
	String[] names = null;
	String cacheKey = CALENDAR_NAMES + key;

	removeEmptyReferences();
	ResourceReference data = cache.get(cacheKey);

	if (data == null \|\| ((names = (String[]) data.get()) == null)) {
	ResourceBundle rb = localeData.getDateFormatData(locale);
	if (rb.containsKey(key)) {
	names = rb.getStringArray(key);
	cache.put(cacheKey,
	new ResourceReference(cacheKey, (Object) names, referenceQueue));
	}
	}

	return names;
	}

	String[] getJavaTimeNames(String key) {
	String[] names = null;
	String cacheKey = CALENDAR_NAMES + key;

	removeEmptyReferences();
	ResourceReference data = cache.get(cacheKey);

	if (data == null \|\| ((names = (String[]) data.get()) == null)) {
	ResourceBundle rb = getJavaTimeFormatData();
	if (rb.containsKey(key)) {
	names = rb.getStringArray(key);
	cache.put(cacheKey,
	new ResourceReference(cacheKey, (Object) names, referenceQueue));
	}
	}

	return names;
	}

	public String getDateTimePattern(int timeStyle, int dateStyle, Calendar cal) {
	if (cal == null) {
	cal = Calendar.getInstance(locale);
	}
	return getDateTimePattern(null, timeStyle, dateStyle, cal.getCalendarType());
	}

	/**
	* Returns a date-time format pattern
	* @param timeStyle style of time; one of FULL, LONG, MEDIUM, SHORT in DateFormat,
	* or -1 if not required
	* @param dateStyle style of time; one of FULL, LONG, MEDIUM, SHORT in DateFormat,
	* or -1 if not required
	* @param calType the calendar type for the pattern
	* @return the pattern string
	*/
	public String getJavaTimeDateTimePattern(int timeStyle, int dateStyle, String calType) {
	calType = CalendarDataUtility.normalizeCalendarType(calType);
	String pattern;
	pattern = getDateTimePattern("java.time.", timeStyle, dateStyle, calType);
	if (pattern == null) {
	pattern = getDateTimePattern(null, timeStyle, dateStyle, calType);
	}
	return pattern;
	}

	private String getDateTimePattern(String prefix, int timeStyle, int dateStyle, String calType) {
	String pattern;
	String timePattern = null;
	String datePattern = null;

	if (timeStyle >= 0) {
	if (prefix != null) {
	timePattern = getDateTimePattern(prefix, "TimePatterns", timeStyle, calType);
	}
	if (timePattern == null) {
	timePattern = getDateTimePattern(null, "TimePatterns", timeStyle, calType);
	}
	}
	if (dateStyle >= 0) {
	if (prefix != null) {
	datePattern = getDateTimePattern(prefix, "DatePatterns", dateStyle, calType);
	}
	if (datePattern == null) {
	datePattern = getDateTimePattern(null, "DatePatterns", dateStyle, calType);
	}
	}
	if (timeStyle >= 0) {
	if (dateStyle >= 0) {
	String dateTimePattern = null;
	if (prefix != null) {
	dateTimePattern = getDateTimePattern(prefix, "DateTimePatterns", 0, calType);
	}
	if (dateTimePattern == null) {
	dateTimePattern = getDateTimePattern(null, "DateTimePatterns", 0, calType);
	}
	switch (dateTimePattern) {
	case "{1} {0}":
	pattern = datePattern + " " + timePattern;
	break;
	case "{0} {1}":
	pattern = timePattern + " " + datePattern;
	break;
	default:
	pattern = MessageFormat.format(dateTimePattern, timePattern, datePattern);
	break;
	}
	} else {
	pattern = timePattern;
	}
	} else if (dateStyle >= 0) {
	pattern = datePattern;
	} else {
	throw new IllegalArgumentException("No date or time style specified");
	}
	return pattern;
	}

	public String[] getNumberPatterns() {
	String[] numberPatterns = null;

	removeEmptyReferences();
	ResourceReference data = cache.get(NUMBER_PATTERNS_CACHEKEY);

	if (data == null \|\| ((numberPatterns = (String[]) data.get()) == null)) {
	ResourceBundle resource = localeData.getNumberFormatData(locale);
	numberPatterns = resource.getStringArray("NumberPatterns");
	cache.put(NUMBER_PATTERNS_CACHEKEY,
	new ResourceReference(NUMBER_PATTERNS_CACHEKEY, (Object) numberPatterns, referenceQueue));
	}

	return numberPatterns;
	}

	/**
	* Returns the FormatData resource bundle of this LocaleResources.
	* The FormatData should be used only for accessing extra
	* resources required by JSR 310.
	*/
	public ResourceBundle getJavaTimeFormatData() {
	ResourceBundle rb = localeData.getDateFormatData(locale);
	if (rb instanceof ParallelListResourceBundle) {
	localeData.setSupplementary((ParallelListResourceBundle) rb);
	}
	return rb;
	}

	private String getDateTimePattern(String prefix, String key, int styleIndex, String calendarType) {
	StringBuilder sb = new StringBuilder();
	if (prefix != null) {
	sb.append(prefix);
	}
	if (!"gregory".equals(calendarType)) {
	sb.append(calendarType).append('.');
	}
	sb.append(key);
	String resourceKey = sb.toString();
	String cacheKey = sb.insert(0, DATE_TIME_PATTERN).toString();

	removeEmptyReferences();
	ResourceReference data = cache.get(cacheKey);
	Object value = NULLOBJECT;

	if (data == null \|\| ((value = data.get()) == null)) {
	ResourceBundle r = (prefix != null) ? getJavaTimeFormatData() : localeData.getDateFormatData(locale);
	if (r.containsKey(resourceKey)) {
	value = r.getStringArray(resourceKey);
	} else {
	assert !resourceKey.equals(key);
	if (r.containsKey(key)) {
	value = r.getStringArray(key);
	}
	}
	cache.put(cacheKey,
	new ResourceReference(cacheKey, value, referenceQueue));
	}
	if (value == NULLOBJECT) {
	assert prefix != null;
	return null;
	}
	return ((String[])value)[styleIndex];
	}

	private static class ResourceReference extends SoftReference<Object> {
	private final String cacheKey;

	ResourceReference(String cacheKey, Object o, ReferenceQueue<Object> q) {
	super(o, q);
	this.cacheKey = cacheKey;
	}

	String getCacheKey() {
	return cacheKey;
	}
	}
	}