--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/sun/util/locale/provider/CalendarNameProviderImpl.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,348 @@
+/*
+ * Copyright (c) 2012, 2017, 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.
+ */
+package sun.util.locale.provider;
+
+import static java.util.Calendar.*;
+import java.util.Comparator;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.spi.CalendarNameProvider;
+import sun.util.calendar.CalendarSystem;
+import sun.util.calendar.Era;
+
+/**
+ * Concrete implementation of the {@link java.util.spi.CalendarDataProvider
+ * CalendarDataProvider} class for the JRE LocaleProviderAdapter.
+ *
+ * @author Masayoshi Okutsu
+ * @author Naoto Sato
+ */
+public class CalendarNameProviderImpl extends CalendarNameProvider implements AvailableLanguageTags {
+ private final LocaleProviderAdapter.Type type;
+ private final Set<String> langtags;
+
+ public CalendarNameProviderImpl(LocaleProviderAdapter.Type type, Set<String> langtags) {
+ this.type = type;
+ this.langtags = langtags;
+ }
+
+ @Override
+ public String getDisplayName(String calendarType, int field, int value, int style, Locale locale) {
+ return getDisplayNameImpl(calendarType, field, value, style, locale, false);
+ }
+
+ public String getJavaTimeDisplayName(String calendarType, int field, int value, int style, Locale locale) {
+ return getDisplayNameImpl(calendarType, field, value, style, locale, true);
+ }
+
+ public String getDisplayNameImpl(String calendarType, int field, int value, int style, Locale locale, boolean javatime) {
+ String name = null;
+ String key = getResourceKey(calendarType, field, style, javatime);
+ if (key != null) {
+ LocaleResources lr = LocaleProviderAdapter.forType(type).getLocaleResources(locale);
+ String[] strings = javatime ? lr.getJavaTimeNames(key) : lr.getCalendarNames(key);
+
+ // If standalone names are requested and no "standalone." resources are found,
+ // try the default ones instead.
+ if (strings == null && key.indexOf("standalone.") != -1) {
+ key = key.replaceFirst("standalone.", "");
+ strings = javatime ? lr.getJavaTimeNames(key) : lr.getCalendarNames(key);
+ }
+
+ if (strings != null && strings.length > 0) {
+ if (field == DAY_OF_WEEK || field == YEAR) {
+ --value;
+ }
+ if (value < 0 || value > strings.length) {
+ return null;
+ } else if (value == strings.length) {
+ if (field == ERA && "japanese".equals(calendarType)) {
+ // get the supplemental era, if any, specified through
+ // the property "jdk.calendar.japanese.supplemental.era"
+ // which is always the last element.
+ Era[] jeras = CalendarSystem.forName("japanese").getEras();
+ if (jeras.length == value) {
+ Era supEra = jeras[value - 1]; // 0-based index
+ if (javatime) {
+ return getBaseStyle(style) == NARROW_FORMAT ?
+ supEra.getAbbreviation() :
+ supEra.getName();
+ } else {
+ return (style & LONG) != 0 ?
+ supEra.getName() :
+ supEra.getAbbreviation();
+ }
+ }
+ }
+ return null;
+ }
+ name = strings[value];
+ // If name is empty in standalone, try its `format' style.
+ if (name.length() == 0
+ && (style == SHORT_STANDALONE || style == LONG_STANDALONE
+ || style == NARROW_STANDALONE)) {
+ name = getDisplayName(calendarType, field, value,
+ getBaseStyle(style),
+ locale);
+ }
+ }
+ }
+ return name;
+ }
+
+ private static int[] REST_OF_STYLES = {
+ SHORT_STANDALONE, LONG_FORMAT, LONG_STANDALONE,
+ NARROW_FORMAT, NARROW_STANDALONE
+ };
+
+ @Override
+ public Map<String, Integer> getDisplayNames(String calendarType, int field, int style, Locale locale) {
+ Map<String, Integer> names;
+ if (style == ALL_STYLES) {
+ names = getDisplayNamesImpl(calendarType, field, SHORT_FORMAT, locale, false);
+ for (int st : REST_OF_STYLES) {
+ names.putAll(getDisplayNamesImpl(calendarType, field, st, locale, false));
+ }
+ } else {
+ // specific style
+ names = getDisplayNamesImpl(calendarType, field, style, locale, false);
+ }
+ return names.isEmpty() ? null : names;
+ }
+
+ // NOTE: This method should be used ONLY BY JSR 310 classes.
+ public Map<String, Integer> getJavaTimeDisplayNames(String calendarType, int field, int style, Locale locale) {
+ Map<String, Integer> names;
+ names = getDisplayNamesImpl(calendarType, field, style, locale, true);
+ return names.isEmpty() ? null : names;
+ }
+
+ private Map<String, Integer> getDisplayNamesImpl(String calendarType, int field,
+ int style, Locale locale, boolean javatime) {
+ String key = getResourceKey(calendarType, field, style, javatime);
+ Map<String, Integer> map = new TreeMap<>(LengthBasedComparator.INSTANCE);
+ if (key != null) {
+ LocaleResources lr = LocaleProviderAdapter.forType(type).getLocaleResources(locale);
+ String[] strings = javatime ? lr.getJavaTimeNames(key) : lr.getCalendarNames(key);
+
+ // If standalone names are requested and no "standalone." resources are found,
+ // try the default ones instead.
+ if (strings == null && key.indexOf("standalone.") != -1) {
+ key = key.replaceFirst("standalone.", "");
+ strings = javatime ? lr.getJavaTimeNames(key) : lr.getCalendarNames(key);
+ }
+
+ if (strings != null) {
+ if (!hasDuplicates(strings)) {
+ 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++) {
+ String name = strings[i];
+ // Ignore any empty string (some standalone month names
+ // are not defined)
+ if (name.length() == 0) {
+ continue;
+ }
+ map.put(name, base + i);
+ }
+ }
+ }
+ }
+ }
+ return map;
+ }
+
+ private int getBaseStyle(int style) {
+ return style & ~(SHORT_STANDALONE - SHORT_FORMAT);
+ }
+
+ /**
+ * Comparator implementation for TreeMap which iterates keys from longest
+ * to shortest.
+ */
+ private static class LengthBasedComparator implements Comparator<String> {
+ private static final LengthBasedComparator INSTANCE = new LengthBasedComparator();
+
+ private LengthBasedComparator() {
+ }
+
+ @Override
+ public int compare(String o1, String o2) {
+ int n = o2.length() - o1.length();
+ return (n == 0) ? o1.compareTo(o2) : n;
+ }
+ }
+
+ @Override
+ public Locale[] getAvailableLocales() {
+ return LocaleProviderAdapter.toLocaleArray(langtags);
+ }
+
+ @Override
+ public boolean isSupportedLocale(Locale locale) {
+ if (Locale.ROOT.equals(locale)) {
+ return true;
+ }
+ String calendarType = null;
+ if (locale.hasExtensions()) {
+ calendarType = locale.getUnicodeLocaleType("ca");
+ locale = locale.stripExtensions();
+ }
+
+ if (calendarType != null) {
+ switch (calendarType) {
+ case "buddhist":
+ case "japanese":
+ case "gregory":
+ case "islamic":
+ case "roc":
+ break;
+ default:
+ // Unknown calendar type
+ return false;
+ }
+ }
+ if (langtags.contains(locale.toLanguageTag())) {
+ return true;
+ }
+ if (type == LocaleProviderAdapter.Type.JRE) {
+ String oldname = locale.toString().replace('_', '-');
+ return langtags.contains(oldname);
+ }
+ return false;
+ }
+
+ @Override
+ public Set<String> getAvailableLanguageTags() {
+ return langtags;
+ }
+
+ private boolean hasDuplicates(String[] strings) {
+ int len = strings.length;
+ for (int i = 0; i < len - 1; i++) {
+ String a = strings[i];
+ if (a != null) {
+ for (int j = i + 1; j < len; j++) {
+ if (a.equals(strings[j])) {
+ return true;
+ }
+ }
+ }
+ }
+ return false;
+ }
+
+ private String getResourceKey(String type, int field, int style, boolean javatime) {
+ int baseStyle = getBaseStyle(style);
+ boolean isStandalone = (style != baseStyle);
+
+ if ("gregory".equals(type)) {
+ type = null;
+ }
+ boolean isNarrow = (baseStyle == NARROW_FORMAT);
+ StringBuilder key = new StringBuilder();
+ // If javatime is true, use prefix "java.time.".
+ if (javatime) {
+ key.append("java.time.");
+ }
+ switch (field) {
+ case ERA:
+ if (type != null) {
+ key.append(type).append('.');
+ }
+ if (isNarrow) {
+ key.append("narrow.");
+ } else {
+ // JRE and CLDR use different resource key conventions
+ // due to historical reasons. (JRE DateFormatSymbols.getEras returns
+ // abbreviations while other getShort*() return abbreviations.)
+ if (this.type == LocaleProviderAdapter.Type.JRE) {
+ if (javatime) {
+ if (baseStyle == LONG) {
+ key.append("long.");
+ }
+ }
+ if (baseStyle == SHORT) {
+ key.append("short.");
+ }
+ } else { // this.type == LocaleProviderAdapter.Type.CLDR
+ if (baseStyle == LONG) {
+ key.append("long.");
+ }
+ }
+ }
+ key.append("Eras");
+ break;
+
+ case YEAR:
+ if (!isNarrow) {
+ key.append(type).append(".FirstYear");
+ }
+ break;
+
+ case MONTH:
+ if ("islamic".equals(type)) {
+ key.append(type).append('.');
+ }
+ if (isStandalone) {
+ key.append("standalone.");
+ }
+ key.append("Month").append(toStyleName(baseStyle));
+ break;
+
+ case DAY_OF_WEEK:
+ // support standalone day names
+ if (isStandalone) {
+ key.append("standalone.");
+ }
+ key.append("Day").append(toStyleName(baseStyle));
+ break;
+
+ case AM_PM:
+ if (isNarrow) {
+ key.append("narrow.");
+ }
+ key.append("AmPmMarkers");
+ break;
+ }
+ return key.length() > 0 ? key.toString() : null;
+ }
+
+ private String toStyleName(int baseStyle) {
+ switch (baseStyle) {
+ case SHORT:
+ return "Abbreviations";
+ case NARROW_FORMAT:
+ return "Narrows";
+ }
+ return "Names";
+ }
+}