src/java.base/share/classes/sun/util/locale/provider/JRELocaleProviderAdapter.java
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rev 10560 : 8038436: Re-examine the mechanism to determine available localedata and cldrdata
Reviewed-by:
*** 23,44 ****
* questions.
*/
package sun.util.locale.provider;
- import java.io.File;
import java.security.AccessController;
! import java.security.PrivilegedAction;
import java.text.spi.BreakIteratorProvider;
import java.text.spi.CollatorProvider;
import java.text.spi.DateFormatProvider;
import java.text.spi.DateFormatSymbolsProvider;
import java.text.spi.DecimalFormatSymbolsProvider;
import java.text.spi.NumberFormatProvider;
import java.util.Collections;
import java.util.HashSet;
import java.util.Locale;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.spi.CalendarDataProvider;
--- 23,45 ----
* questions.
*/
package sun.util.locale.provider;
import java.security.AccessController;
! import java.security.PrivilegedActionException;
! import java.security.PrivilegedExceptionAction;
import java.text.spi.BreakIteratorProvider;
import java.text.spi.CollatorProvider;
import java.text.spi.DateFormatProvider;
import java.text.spi.DateFormatSymbolsProvider;
import java.text.spi.DecimalFormatSymbolsProvider;
import java.text.spi.NumberFormatProvider;
import java.util.Collections;
import java.util.HashSet;
import java.util.Locale;
+ import java.util.ServiceLoader;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.spi.CalendarDataProvider;
*** 56,67 ****
* @author Naoto Sato
* @author Masayoshi Okutsu
*/
public class JRELocaleProviderAdapter extends LocaleProviderAdapter implements ResourceBundleBasedAdapter {
- private static final String LOCALE_DATA_JAR_NAME = "localedata.jar";
-
private final ConcurrentMap<String, Set<String>> langtagSets
= new ConcurrentHashMap<>();
private final ConcurrentMap<Locale, LocaleResources> localeResourcesMap
= new ConcurrentHashMap<>();
--- 57,66 ----
*** 354,381 ****
}
return tagset;
}
protected Set<String> createLanguageTagSet(String category) {
! String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString(category);
if (supportedLocaleString == null) {
return Collections.emptySet();
}
Set<String> tagset = new HashSet<>();
StringTokenizer tokens = new StringTokenizer(supportedLocaleString);
while (tokens.hasMoreTokens()) {
! String token = tokens.nextToken();
! if (token.equals("|")) {
! if (isNonENLangSupported()) {
! continue;
}
- break;
}
- tagset.add(token);
}
! return tagset;
}
/**
* Lazy load available locales.
*/
--- 353,410 ----
}
return tagset;
}
protected Set<String> createLanguageTagSet(String category) {
! String supportedLocaleString = createSupportedLocaleString(category);
if (supportedLocaleString == null) {
return Collections.emptySet();
}
Set<String> tagset = new HashSet<>();
StringTokenizer tokens = new StringTokenizer(supportedLocaleString);
while (tokens.hasMoreTokens()) {
! tagset.add(tokens.nextToken());
! }
!
! return tagset;
! }
!
! private static String createSupportedLocaleString(String category) {
! // Directly call English tags, as we know it's in the base module.
! String supportedLocaleString = EnLocaleDataMetaInfo.getSupportedLocaleString(category);
!
! // Use ServiceLoader to dynamically acquire installed locales' tags.
! try {
! String nonENTags = AccessController.doPrivileged(new PrivilegedExceptionAction<String>() {
! @Override
! public String run() {
! String tags = null;
! for (LocaleDataMetaInfo ldmi :
! ServiceLoader.loadInstalled(LocaleDataMetaInfo.class)) {
! if (ldmi.getType() == LocaleProviderAdapter.Type.JRE) {
! String t = ldmi.availableLanguageTags(category);
! if (t != null) {
! if (tags == null) {
! tags = t;
! } else {
! tags += " " + t;
! }
}
}
}
+ return tags;
+ }
+ });
! if (nonENTags != null) {
! supportedLocaleString += " " + nonENTags;
! }
! } catch (Exception e) {
! // catch any exception, and ignore them as if non-EN locales do not exist.
! }
!
! return supportedLocaleString;
}
/**
* Lazy load available locales.
*/
*** 385,415 ****
}
}
private static Locale[] createAvailableLocales() {
/*
! * Gets the locale string list from LocaleDataMetaInfo class and then
* contructs the Locale array and a set of language tags based on the
* locale string returned above.
*/
! String supportedLocaleString = LocaleDataMetaInfo.getSupportedLocaleString("AvailableLocales");
if (supportedLocaleString.length() == 0) {
throw new InternalError("No available locales for JRE");
}
! /*
! * Look for "|" and construct a new locale string list.
! */
! int barIndex = supportedLocaleString.indexOf('|');
! StringTokenizer localeStringTokenizer;
! if (isNonENLangSupported()) {
! localeStringTokenizer = new StringTokenizer(supportedLocaleString.substring(0, barIndex)
! + supportedLocaleString.substring(barIndex + 1));
! } else {
! localeStringTokenizer = new StringTokenizer(supportedLocaleString.substring(0, barIndex));
! }
int length = localeStringTokenizer.countTokens();
Locale[] locales = new Locale[length + 1];
locales[0] = Locale.ROOT;
for (int i = 1; i <= length; i++) {
--- 414,434 ----
}
}
private static Locale[] createAvailableLocales() {
/*
! * Gets the locale string list from LocaleDataMetaInfo classes and then
* contructs the Locale array and a set of language tags based on the
* locale string returned above.
*/
! String supportedLocaleString = createSupportedLocaleString("AvailableLocales");
if (supportedLocaleString.length() == 0) {
throw new InternalError("No available locales for JRE");
}
! StringTokenizer localeStringTokenizer = new StringTokenizer(supportedLocaleString);
int length = localeStringTokenizer.countTokens();
Locale[] locales = new Locale[length + 1];
locales[0] = Locale.ROOT;
for (int i = 1; i <= length; i++) {
*** 428,468 ****
locales[i] = Locale.forLanguageTag(currentToken);
}
}
return locales;
}
-
- private static volatile Boolean isNonENSupported = null;
-
- /*
- * Returns true if the non EN resources jar file exists in jre
- * extension directory. @returns true if the jar file is there. Otherwise,
- * returns false.
- */
- private static boolean isNonENLangSupported() {
- if (isNonENSupported == null) {
- synchronized (JRELocaleProviderAdapter.class) {
- if (isNonENSupported == null) {
- final String sep = File.separator;
- String localeDataJar =
- java.security.AccessController.doPrivileged(
- new sun.security.action.GetPropertyAction("java.home"))
- + sep + "lib" + sep + "ext" + sep + LOCALE_DATA_JAR_NAME;
-
- /*
- * Peek at the installed extension directory to see if
- * localedata.jar is installed or not.
- */
- final File f = new File(localeDataJar);
- isNonENSupported =
- AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
- @Override
- public Boolean run() {
- return f.exists();
- }
- });
- }
- }
- }
- return isNonENSupported;
- }
}
--- 447,452 ----