private static ResourceBundle processGetBundle(
String baseName,
Locale targetLocale,
ClassLoader loader,
ResourceBundle.Control control,
boolean expired,
ResourceBundle result) {
List<Locale> locales = control.getCandidateLocales(baseName, targetLocale);
if (null == locales) {
throw new IllegalArgumentException();
}
List<String> formats = control.getFormats(baseName);
if (Control.FORMAT_CLASS == formats
|| Control.FORMAT_PROPERTIES == formats
|| Control.FORMAT_DEFAULT == formats) {
throw new IllegalArgumentException();
}
ResourceBundle ret = null;
ResourceBundle currentBundle = null;
ResourceBundle bundle = null;
for (Locale locale : locales) {
for (String format : formats) {
try {
if (expired) {
bundle =
control.newBundle(
baseName,
locale,
format,
loader,
control.needsReload(
baseName, locale, format, loader, result, System.currentTimeMillis()));
} else {
try {
bundle = control.newBundle(baseName, locale, format, loader, false);
} catch (IllegalArgumentException e) {
// do nothing
}
}
} catch (IllegalAccessException e) {
// do nothing
} catch (InstantiationException e) {
// do nothing
} catch (IOException e) {
// do nothing
}
if (null != bundle) {
if (null != currentBundle) {
currentBundle.setParent(bundle);
currentBundle = bundle;
} else {
if (null == ret) {
ret = bundle;
currentBundle = ret;
}
}
}
if (null != bundle) {
break;
}
}
}
if ((null == ret)
|| (Locale.ROOT.equals(ret.getLocale())
&& (!(locales.size() == 1 && locales.contains(Locale.ROOT))))) {
Locale nextLocale = control.getFallbackLocale(baseName, targetLocale);
if (null != nextLocale) {
ret = processGetBundle(baseName, nextLocale, loader, control, expired, result);
}
}
return ret;
}
private static ResourceBundle handleGetBundle(
String base, String locale, boolean loadBase, final ClassLoader loader) {
ResourceBundle bundle = null;
String bundleName = base + locale;
Object cacheKey = loader != null ? (Object) loader : (Object) "null"; // $NON-NLS-1$
Hashtable<String, ResourceBundle> loaderCache;
synchronized (cache) {
loaderCache = cache.get(cacheKey);
if (loaderCache == null) {
loaderCache = new Hashtable<String, ResourceBundle>();
cache.put(cacheKey, loaderCache);
}
}
ResourceBundle result = loaderCache.get(bundleName);
if (result != null) {
if (result == MISSINGBASE) {
return null;
}
if (result == MISSING) {
if (!loadBase) {
return null;
}
String extension = strip(locale);
if (extension == null) {
return null;
}
return handleGetBundle(base, extension, loadBase, loader);
}
return result;
}
try {
Class<?> bundleClass = Class.forName(bundleName, true, loader);
if (ResourceBundle.class.isAssignableFrom(bundleClass)) {
bundle = (ResourceBundle) bundleClass.newInstance();
}
} catch (LinkageError e) {
} catch (Exception e) {
}
if (bundle != null) {
bundle.setLocale(locale);
} else {
final String fileName = bundleName.replace('.', '/');
InputStream stream =
AccessController.doPrivileged(
new PrivilegedAction<InputStream>() {
public InputStream run() {
return loader == null
? ClassLoader.getSystemResourceAsStream(fileName + ".properties")
: loader //$NON-NLS-1$
.getResourceAsStream(fileName + ".properties"); // $NON-NLS-1$
}
});
if (stream != null) {
try {
try {
bundle = new PropertyResourceBundle(new InputStreamReader(stream));
} finally {
stream.close();
}
bundle.setLocale(locale);
} catch (IOException e) {
// do nothing
}
}
}
String extension = strip(locale);
if (bundle != null) {
if (extension != null) {
ResourceBundle parent = handleGetBundle(base, extension, true, loader);
if (parent != null) {
bundle.setParent(parent);
}
}
loaderCache.put(bundleName, bundle);
return bundle;
}
if (extension != null && (loadBase || extension.length() > 0)) {
bundle = handleGetBundle(base, extension, loadBase, loader);
if (bundle != null) {
loaderCache.put(bundleName, bundle);
return bundle;
}
}
loaderCache.put(bundleName, loadBase ? MISSINGBASE : MISSING);
return null;
}
public void setParent(ResourceBundle parent) {
super.setParent(parent);
}