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src/java.base/share/classes/sun/util/locale/provider/LocaleResources.java
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@@ -41,10 +41,11 @@
package sun.util.locale.provider;
import java.lang.ref.ReferenceQueue;
import java.lang.ref.SoftReference;
import java.text.MessageFormat;
+import java.text.NumberFormat;
import java.util.Calendar;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Locale;
import java.util.Map;
@@ -86,10 +87,11 @@
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 COMPACT_NUMBER_PATTERNS_CACHEKEY = "CNP";
private static final String DATE_TIME_PATTERN = "DTP.";
// TimeZoneNamesBundle exemplar city prefix
private static final String TZNB_EXCITY_PREFIX = "timezone.excity.";
@@ -477,10 +479,36 @@
return numberPatterns;
}
/**
+ * Returns the compact number format patterns.
+ * @param formatStyle the style for formatting a number
+ * @return an array of compact number patterns
+ */
+ @SuppressWarnings("unchecked")
+ public String[] getCNPatterns(NumberFormat.Style formatStyle) {
+
+ Objects.requireNonNull(formatStyle);
+ String[] compactNumberPatterns = null;
+ removeEmptyReferences();
+ String width = (formatStyle == NumberFormat.Style.LONG) ? "long" : "short";
+ String cacheKey = width + "." + COMPACT_NUMBER_PATTERNS_CACHEKEY;
+ ResourceReference data = cache.get(cacheKey);
+ if (data == null || ((compactNumberPatterns
+ = (String[]) data.get()) == null)) {
+ ResourceBundle resource = localeData.getNumberFormatData(locale);
+ compactNumberPatterns = (String[]) resource
+ .getObject(width + ".CompactNumberPatterns");
+ cache.put(cacheKey, new ResourceReference(cacheKey,
+ (Object) compactNumberPatterns, referenceQueue));
+ }
+ return compactNumberPatterns;
+ }
+
+
+ /**
* 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() {
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