src/share/classes/java/time/format/DateTimeTextProvider.java

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@@ -68,10 +68,11 @@
 
 import java.time.chrono.Chronology;
 import java.time.chrono.IsoChronology;
 import java.time.chrono.JapaneseChronology;
 import java.time.temporal.ChronoField;
+import java.time.temporal.IsoFields;
 import java.time.temporal.TemporalField;
 import java.util.AbstractMap.SimpleImmutableEntry;
 import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Collections;

@@ -80,14 +81,17 @@
 import java.util.Iterator;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.ResourceBundle;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 
 import sun.util.locale.provider.CalendarDataUtility;
+import sun.util.locale.provider.LocaleProviderAdapter;
+import sun.util.locale.provider.LocaleResources;
 
 /**
  * A provider to obtain the textual form of a date-time field.
  *
  * <h3>Specification for implementors</h3>

@@ -139,19 +143,10 @@
             return ((LocaleStore) store).getText(value, style);
         }
         return null;
     }
 
-    private static int toStyle(TextStyle style) {
-        if (style == TextStyle.FULL) {
-            return Calendar.LONG_FORMAT;
-        } else if (style == TextStyle.SHORT) {
-            return Calendar.SHORT_FORMAT;
-        }
-        return Calendar.NARROW_STANDALONE;
-    }
-
     /**
      * Gets the text for the specified chrono, field, locale and style
      * for the purpose of formatting.
      * <p>
      * The text associated with the value is returned.

@@ -198,12 +193,12 @@
             fieldIndex = Calendar.AM_PM;
             fieldValue = (int) value;
         } else {
             return null;
         }
-        return CalendarDataUtility.retrieveCldrFieldValueName(
-                chrono.getCalendarType(), fieldIndex, fieldValue, toStyle(style), locale);
+        return CalendarDataUtility.retrieveJavaTimeFieldValueName(
+                chrono.getCalendarType(), fieldIndex, fieldValue, style.toCalendarStyle(), locale);
     }
 
     /**
      * Gets an iterator of text to field for the specified field, locale and style
      * for the purpose of parsing.

@@ -268,44 +263,44 @@
             break;
         default:
             return null;
         }
 
-        Map<String, Integer> map = CalendarDataUtility.retrieveCldrFieldValueNames(
-                chrono.getCalendarType(), fieldIndex, toStyle(style), locale);
+        int calendarStyle = (style == null) ? Calendar.ALL_STYLES : style.toCalendarStyle();
+        Map<String, Integer> map = CalendarDataUtility.retrieveJavaTimeFieldValueNames(
+                chrono.getCalendarType(), fieldIndex, calendarStyle, locale);
         if (map == null) {
             return null;
         }
-
         List<Entry<String, Long>> list = new ArrayList<>(map.size());
         switch (fieldIndex) {
         case Calendar.ERA:
-            for (String key : map.keySet()) {
-                int era = map.get(key);
+            for (Map.Entry<String, Integer> entry : map.entrySet()) {
+                int era = entry.getValue();
                 if (chrono == JapaneseChronology.INSTANCE) {
                     if (era == 0) {
                         era = -999;
                     } else {
                         era -= 2;
                     }
                 }
-                list.add(createEntry(key, (long) era));
+                list.add(createEntry(entry.getKey(), (long)era));
             }
             break;
         case Calendar.MONTH:
-            for (String key : map.keySet()) {
-                list.add(createEntry(key, (long)(map.get(key) + 1)));
+            for (Map.Entry<String, Integer> entry : map.entrySet()) {
+                list.add(createEntry(entry.getKey(), (long)(entry.getValue() + 1)));
             }
             break;
         case Calendar.DAY_OF_WEEK:
-            for (String key : map.keySet()) {
-                list.add(createEntry(key, (long)toWeekDay(map.get(key))));
+            for (Map.Entry<String, Integer> entry : map.entrySet()) {
+                list.add(createEntry(entry.getKey(), (long)toWeekDay(entry.getValue())));
             }
             break;
         default:
-            for (String key : map.keySet()) {
-                list.add(createEntry(key, (long)map.get(key)));
+            for (Map.Entry<String, Integer> entry : map.entrySet()) {
+                list.add(createEntry(entry.getKey(), (long)entry.getValue()));
             }
             break;
         }
         return list.iterator();
     }

@@ -331,89 +326,130 @@
 
     private Object createStore(TemporalField field, Locale locale) {
         Map<TextStyle, Map<Long, String>> styleMap = new HashMap<>();
         if (field == ERA) {
             for (TextStyle textStyle : TextStyle.values()) {
+                if (textStyle.isStandalone()) {
+                    // Stand-alone isn't applicable to era names.
+                    continue;
+                }
+                Map<String, Integer> displayNames = CalendarDataUtility.retrieveJavaTimeFieldValueNames(
+                        "gregory", Calendar.ERA, textStyle.toCalendarStyle(), locale);
+                if (displayNames != null) {
                 Map<Long, String> map = new HashMap<>();
-                for (Entry<String, Integer> entry :
-                        CalendarDataUtility.retrieveCldrFieldValueNames(
-                        "gregory", Calendar.ERA, toStyle(textStyle), locale).entrySet()) {
+                    for (Entry<String, Integer> entry : displayNames.entrySet()) {
                     map.put((long) entry.getValue(), entry.getKey());
                 }
                 if (!map.isEmpty()) {
                     styleMap.put(textStyle, map);
                 }
             }
+            }
             return new LocaleStore(styleMap);
         }
 
         if (field == MONTH_OF_YEAR) {
+            for (TextStyle textStyle : TextStyle.values()) {
+                Map<String, Integer> displayNames = CalendarDataUtility.retrieveJavaTimeFieldValueNames(
+                        "gregory", Calendar.MONTH, textStyle.toCalendarStyle(), locale);
             Map<Long, String> map = new HashMap<>();
-            for (Entry<String, Integer> entry :
-                    CalendarDataUtility.retrieveCldrFieldValueNames(
-                    "gregory", Calendar.MONTH, Calendar.LONG_FORMAT, locale).entrySet()) {
+                if (displayNames != null) {
+                    for (Entry<String, Integer> entry : displayNames.entrySet()) {
                 map.put((long) (entry.getValue() + 1), entry.getKey());
             }
-            styleMap.put(TextStyle.FULL, map);
 
-            map = new HashMap<>();
-            for (Entry<String, Integer> entry :
-                    CalendarDataUtility.retrieveCldrFieldValueNames(
-                    "gregory", Calendar.MONTH, Calendar.SHORT_FORMAT, locale).entrySet()) {
-                map.put((long) (entry.getValue() + 1), entry.getKey());
-            }
-            styleMap.put(TextStyle.SHORT, map);
-
-            map = new HashMap<>();
+                } else {
+                    // Narrow names may have duplicated names, such as "J" for January, Jun, July.
+                    // Get names one by one in that case.
             for (int month = Calendar.JANUARY; month <= Calendar.DECEMBER; month++) {
                 String name;
-                name = CalendarDataUtility.retrieveCldrFieldValueName(
-                        "gregory", Calendar.MONTH, month, Calendar.NARROW_STANDALONE, locale);
-                if (name != null) {
-                    map.put((long)(month + 1), name);
+                        name = CalendarDataUtility.retrieveJavaTimeFieldValueName(
+                                "gregory", Calendar.MONTH, month, textStyle.toCalendarStyle(), locale);
+                        if (name == null) {
+                            break;
+                        }
+                        map.put((long) (month + 1), name);
                 }
             }
             if (!map.isEmpty()) {
-                styleMap.put(TextStyle.NARROW, map);
+                    styleMap.put(textStyle, map);
+                }
             }
             return new LocaleStore(styleMap);
         }
 
         if (field == DAY_OF_WEEK) {
+            for (TextStyle textStyle : TextStyle.values()) {
+                Map<String, Integer> displayNames = CalendarDataUtility.retrieveJavaTimeFieldValueNames(
+                        "gregory", Calendar.DAY_OF_WEEK, textStyle.toCalendarStyle(), locale);
             Map<Long, String> map = new HashMap<>();
-            for (Entry<String, Integer> entry :
-                 CalendarDataUtility.retrieveCldrFieldValueNames(
-                    "gregory", Calendar.DAY_OF_WEEK, Calendar.LONG_FORMAT, locale).entrySet()) {
+                if (displayNames != null) {
+                    for (Entry<String, Integer> entry : displayNames.entrySet()) {
                 map.put((long)toWeekDay(entry.getValue()), entry.getKey());
             }
-            styleMap.put(TextStyle.FULL, map);
-            map = new HashMap<>();
-            for (Entry<String, Integer> entry :
-                    CalendarDataUtility.retrieveCldrFieldValueNames(
-                    "gregory", Calendar.DAY_OF_WEEK, Calendar.SHORT_FORMAT, locale).entrySet()) {
-                map.put((long) toWeekDay(entry.getValue()), entry.getKey());
-            }
-            styleMap.put(TextStyle.SHORT, map);
-            map = new HashMap<>();
+
+                } else {
+                    // Narrow names may have duplicated names, such as "S" for Sunday and Saturday.
+                    // Get names one by one in that case.
             for (int wday = Calendar.SUNDAY; wday <= Calendar.SATURDAY; wday++) {
-                map.put((long) toWeekDay(wday),
-                        CalendarDataUtility.retrieveCldrFieldValueName(
-                        "gregory", Calendar.DAY_OF_WEEK, wday, Calendar.NARROW_FORMAT, locale));
+                        String name;
+                        name = CalendarDataUtility.retrieveJavaTimeFieldValueName(
+                            "gregory", Calendar.DAY_OF_WEEK, wday, textStyle.toCalendarStyle(), locale);
+                        if (name == null) {
+                            break;
+                        }
+                        map.put((long)toWeekDay(wday), name);
+                    }
+                }
+                if (!map.isEmpty()) {
+                    styleMap.put(textStyle, map);
+                }
             }
-            styleMap.put(TextStyle.NARROW, map);
             return new LocaleStore(styleMap);
         }
 
         if (field == AMPM_OF_DAY) {
+            for (TextStyle textStyle : TextStyle.values()) {
+                if (textStyle.isStandalone()) {
+                    // Stand-alone isn't applicable to AM/PM.
+                    continue;
+                }
+                Map<String, Integer> displayNames = CalendarDataUtility.retrieveJavaTimeFieldValueNames(
+                        "gregory", Calendar.AM_PM, textStyle.toCalendarStyle(), locale);
+                if (displayNames != null) {
             Map<Long, String> map = new HashMap<>();
-            for (Entry<String, Integer> entry :
-                    CalendarDataUtility.retrieveCldrFieldValueNames(
-                    "gregory", Calendar.AM_PM, Calendar.LONG_FORMAT, locale).entrySet()) {
+                    for (Entry<String, Integer> entry : displayNames.entrySet()) {
                 map.put((long) entry.getValue(), entry.getKey());
             }
-            styleMap.put(TextStyle.FULL, map);
-            styleMap.put(TextStyle.SHORT, map);  // re-use, as we don't have different data
+                    if (!map.isEmpty()) {
+                        styleMap.put(textStyle, map);
+                    }
+                }
+            }
+            return new LocaleStore(styleMap);
+        }
+
+        if (field == IsoFields.QUARTER_OF_YEAR) {
+            // The order of keys must correspond to the TextStyle.values() order.
+            final String[] keys = {
+                "QuarterNames",
+                "standalone.QuarterNames",
+                "QuarterAbbreviations",
+                "standalone.QuarterAbbreviations",
+                "QuarterNarrows",
+                "standalone.QuarterNarrows",
+            };
+            for (int i = 0; i < keys.length; i++) {
+                String[] names = getLocalizedResource(keys[i], locale);
+                if (names != null) {
+                    Map<Long, String> map = new HashMap<>();
+                    for (int q = 0; q < names.length; q++) {
+                        map.put((long) (q + 1), names[q]);
+                    }
+                    styleMap.put(TextStyle.values()[i], map);
+                }
+            }
             return new LocaleStore(styleMap);
         }
 
         return "";  // null marker for map
     }

@@ -428,10 +464,27 @@
     private static <A, B> Entry<A, B> createEntry(A text, B field) {
         return new SimpleImmutableEntry<>(text, field);
     }
 
     /**
+     * Returns the localized resource of the given key and locale, or null
+     * if no localized resource is available.
+     *
+     * @param key  the key of the localized resource, not null
+     * @param locale  the locale, not null
+     * @return the localized resource, or null if not available
+     * @throws NullPointerException if key or locale is null
+     */
+    @SuppressWarnings("unchecked")
+    static <T> T getLocalizedResource(String key, Locale locale) {
+        LocaleResources lr = LocaleProviderAdapter.getResourceBundleBased()
+                                    .getLocaleResources(locale);
+        ResourceBundle rb = lr.getJavaTimeFormatData();
+        return rb.containsKey(key) ? (T) rb.getObject(key) : null;
+    }
+
+    /**
      * Stores the text for a single locale.
      * <p>
      * Some fields have a textual representation, such as day-of-week or month-of-year.
      * These textual representations can be captured in this class for printing
      * and parsing.

@@ -455,21 +508,21 @@
          */
         LocaleStore(Map<TextStyle, Map<Long, String>> valueTextMap) {
             this.valueTextMap = valueTextMap;
             Map<TextStyle, List<Entry<String, Long>>> map = new HashMap<>();
             List<Entry<String, Long>> allList = new ArrayList<>();
-            for (TextStyle style : valueTextMap.keySet()) {
+            for (Map.Entry<TextStyle, Map<Long, String>> vtmEntry : valueTextMap.entrySet()) {
                 Map<String, Entry<String, Long>> reverse = new HashMap<>();
-                for (Map.Entry<Long, String> entry : valueTextMap.get(style).entrySet()) {
+                for (Map.Entry<Long, String> entry : vtmEntry.getValue().entrySet()) {
                     if (reverse.put(entry.getValue(), createEntry(entry.getValue(), entry.getKey())) != null) {
                         // TODO: BUG: this has no effect
                         continue;  // not parsable, try next style
                     }
                 }
                 List<Entry<String, Long>> list = new ArrayList<>(reverse.values());
                 Collections.sort(list, COMPARATOR);
-                map.put(style, list);
+                map.put(vtmEntry.getKey(), list);
                 allList.addAll(list);
                 map.put(null, allList);
             }
             Collections.sort(allList, COMPARATOR);
             this.parsable = map;