下面列出了怎么用java.util.spi.TimeZoneNameProvider的API类实例代码及写法,或者点击链接到github查看源代码。
private static String[][] loadZoneStrings(Locale locale) {
// If the provider is a TimeZoneNameProviderImpl, call its getZoneStrings
// in order to avoid per-ID retrieval.
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(TimeZoneNameProvider.class, locale);
TimeZoneNameProvider provider = adapter.getTimeZoneNameProvider();
if (provider instanceof TimeZoneNameProviderImpl) {
return ((TimeZoneNameProviderImpl)provider).getZoneStrings(locale);
}
// Performs per-ID retrieval.
Set<String> zoneIDs = LocaleProviderAdapter.forJRE().getLocaleResources(locale).getZoneIDs();
List<String[]> zones = new LinkedList<>();
for (String key : zoneIDs) {
String[] names = retrieveDisplayNamesImpl(key, locale);
if (names != null) {
zones.add(names);
}
}
String[][] zonesArray = new String[zones.size()][];
return zones.toArray(zonesArray);
}
private static String getName(TimeZoneNameProvider timeZoneNameProvider,
Locale locale, String requestID, int style, String tzid) {
String value = null;
switch (requestID) {
case "std":
value = timeZoneNameProvider.getDisplayName(tzid, false, style, locale);
break;
case "dst":
value = timeZoneNameProvider.getDisplayName(tzid, true, style, locale);
break;
case "generic":
value = timeZoneNameProvider.getGenericDisplayName(tzid, style, locale);
break;
}
return value;
}
private static String examineAliases(TimeZoneNameProvider tznp, Locale locale,
String requestID, String tzid, int style,
Map<String, String> aliases) {
if (aliases.containsValue(tzid)) {
for (Map.Entry<String, String> entry : aliases.entrySet()) {
if (entry.getValue().equals(tzid)) {
String alias = entry.getKey();
String name = getName(tznp, locale, requestID, style, alias);
if (name != null) {
return name;
}
name = examineAliases(tznp, locale, requestID, alias, style, aliases);
if (name != null) {
return name;
}
}
}
}
return null;
}
private static String[][] loadZoneStrings(Locale locale) {
// If the provider is a TimeZoneNameProviderImpl, call its getZoneStrings
// in order to avoid per-ID retrieval.
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(TimeZoneNameProvider.class, locale);
TimeZoneNameProvider provider = adapter.getTimeZoneNameProvider();
if (provider instanceof TimeZoneNameProviderImpl) {
return ((TimeZoneNameProviderImpl)provider).getZoneStrings(locale);
}
// Performs per-ID retrieval.
Set<String> zoneIDs = LocaleProviderAdapter.forJRE().getLocaleResources(locale).getZoneIDs();
List<String[]> zones = new LinkedList<>();
for (String key : zoneIDs) {
String[] names = retrieveDisplayNamesImpl(key, locale);
if (names != null) {
zones.add(names);
}
}
String[][] zonesArray = new String[zones.size()][];
return zones.toArray(zonesArray);
}
private static String[][] loadZoneStrings(Locale locale) {
// If the provider is a TimeZoneNameProviderImpl, call its getZoneStrings
// in order to avoid per-ID retrieval.
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(TimeZoneNameProvider.class, locale);
TimeZoneNameProvider provider = adapter.getTimeZoneNameProvider();
if (provider instanceof TimeZoneNameProviderImpl) {
return ((TimeZoneNameProviderImpl)provider).getZoneStrings(locale);
}
// Performs per-ID retrieval.
Set<String> zoneIDs = LocaleProviderAdapter.forJRE().getLocaleResources(locale).getZoneIDs();
List<String[]> zones = new LinkedList<>();
for (String key : zoneIDs) {
String[] names = retrieveDisplayNamesImpl(key, locale);
if (names != null) {
zones.add(names);
}
}
String[][] zonesArray = new String[zones.size()][];
return zones.toArray(zonesArray);
}
@Override
public String getObject(TimeZoneNameProvider timeZoneNameProvider,
Locale locale,
String requestID,
Object... params) {
assert params.length == 2;
int style = (int) params[0];
String tzid = (String) params[1];
String value = getName(timeZoneNameProvider, locale, requestID, style, tzid);
if (value == null) {
Map<String, String> aliases = ZoneInfo.getAliasTable();
if (aliases != null) {
String canonicalID = aliases.get(tzid);
if (canonicalID != null) {
value = getName(timeZoneNameProvider, locale, requestID, style, canonicalID);
}
if (value == null) {
value = examineAliases(timeZoneNameProvider, locale, requestID,
canonicalID != null ? canonicalID : tzid, style, aliases);
}
}
}
return value;
}
private static String examineAliases(TimeZoneNameProvider tznp, Locale locale,
String requestID, String tzid, int style,
Map<String, String> aliases) {
for (Map.Entry<String, String> entry : aliases.entrySet()) {
if (entry.getValue().equals(tzid)) {
String alias = entry.getKey();
String name = getName(tznp, locale, requestID, style, alias);
if (name != null) {
return name;
}
name = examineAliases(tznp, locale, requestID, alias, style, aliases);
if (name != null) {
return name;
}
}
}
return null;
}
private static String getName(TimeZoneNameProvider timeZoneNameProvider,
Locale locale, String requestID, int style, String tzid) {
String value = null;
switch (requestID) {
case "std":
value = timeZoneNameProvider.getDisplayName(tzid, false, style, locale);
break;
case "dst":
value = timeZoneNameProvider.getDisplayName(tzid, true, style, locale);
break;
case "generic":
value = timeZoneNameProvider.getGenericDisplayName(tzid, style, locale);
break;
}
return value;
}
private static String examineAliases(TimeZoneNameProvider tznp, Locale locale,
String requestID, String tzid, int style,
Map<String, String> aliases) {
for (Map.Entry<String, String> entry : aliases.entrySet()) {
if (entry.getValue().equals(tzid)) {
String alias = entry.getKey();
String name = getName(tznp, locale, requestID, style, alias);
if (name != null) {
return name;
}
name = examineAliases(tznp, locale, requestID, alias, style, aliases);
if (name != null) {
return name;
}
}
}
return null;
}
private static String[][] loadZoneStrings(Locale locale) {
// If the provider is a TimeZoneNameProviderImpl, call its getZoneStrings
// in order to avoid per-ID retrieval.
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(TimeZoneNameProvider.class, locale);
TimeZoneNameProvider provider = adapter.getTimeZoneNameProvider();
if (provider instanceof TimeZoneNameProviderImpl) {
return ((TimeZoneNameProviderImpl)provider).getZoneStrings(locale);
}
// Performs per-ID retrieval.
Set<String> zoneIDs = LocaleProviderAdapter.forJRE().getLocaleResources(locale).getZoneIDs();
List<String[]> zones = new LinkedList<>();
for (String key : zoneIDs) {
String[] names = retrieveDisplayNamesImpl(key, locale);
if (names != null) {
zones.add(names);
}
}
String[][] zonesArray = new String[zones.size()][];
return zones.toArray(zonesArray);
}
private static String examineAliases(TimeZoneNameProvider tznp, Locale locale,
String requestID, String tzid, int style,
Map<String, String> aliases) {
for (Map.Entry<String, String> entry : aliases.entrySet()) {
if (entry.getValue().equals(tzid)) {
String alias = entry.getKey();
String name = getName(tznp, locale, requestID, style, alias);
if (name != null) {
return name;
}
name = examineAliases(tznp, locale, requestID, alias, style, aliases);
if (name != null) {
return name;
}
}
}
return null;
}
private static String examineAliases(TimeZoneNameProvider tznp, Locale locale,
String requestID, String tzid, int style,
Map<String, String> aliases) {
for (Map.Entry<String, String> entry : aliases.entrySet()) {
if (entry.getValue().equals(tzid)) {
String alias = entry.getKey();
String name = getName(tznp, locale, requestID, style, alias);
if (name != null) {
return name;
}
name = examineAliases(tznp, locale, requestID, alias, style, aliases);
if (name != null) {
return name;
}
}
}
return null;
}
private static String getName(TimeZoneNameProvider timeZoneNameProvider,
Locale locale, String requestID, int style, String tzid) {
String value = null;
switch (requestID) {
case "std":
value = timeZoneNameProvider.getDisplayName(tzid, false, style, locale);
break;
case "dst":
value = timeZoneNameProvider.getDisplayName(tzid, true, style, locale);
break;
case "generic":
value = timeZoneNameProvider.getGenericDisplayName(tzid, style, locale);
break;
}
return value;
}
@Override
public String getObject(TimeZoneNameProvider timeZoneNameProvider,
Locale locale,
String requestID,
Object... params) {
assert params.length == 2;
int style = (int) params[0];
String tzid = (String) params[1];
String value = getName(timeZoneNameProvider, locale, requestID, style, tzid);
if (value == null) {
Map<String, String> aliases = ZoneInfo.getAliasTable();
if (aliases != null) {
String canonicalID = aliases.get(tzid);
if (canonicalID != null) {
value = getName(timeZoneNameProvider, locale, requestID, style, canonicalID);
}
if (value == null) {
value = examineAliases(timeZoneNameProvider, locale, requestID,
canonicalID != null ? canonicalID : tzid, style, aliases);
}
}
}
return value;
}
@Override
public String getObject(TimeZoneNameProvider timeZoneNameProvider,
Locale locale,
String requestID,
Object... params) {
assert params.length == 2;
int style = (int) params[0];
String tzid = (String) params[1];
String value = getName(timeZoneNameProvider, locale, requestID, style, tzid);
if (value == null) {
Map<String, String> aliases = ZoneInfo.getAliasTable();
if (aliases != null) {
String canonicalID = aliases.get(tzid);
if (canonicalID != null) {
value = getName(timeZoneNameProvider, locale, requestID, style, canonicalID);
}
if (value == null) {
value = examineAliases(timeZoneNameProvider, locale, requestID,
canonicalID != null ? canonicalID : tzid, style, aliases);
}
}
}
return value;
}
private static String examineAliases(TimeZoneNameProvider tznp, Locale locale,
String requestID, String tzid, int style,
Map<String, String> aliases) {
for (Map.Entry<String, String> entry : aliases.entrySet()) {
if (entry.getValue().equals(tzid)) {
String alias = entry.getKey();
String name = getName(tznp, locale, requestID, style, alias);
if (name != null) {
return name;
}
name = examineAliases(tznp, locale, requestID, alias, style, aliases);
if (name != null) {
return name;
}
}
}
return null;
}
private static String getName(TimeZoneNameProvider timeZoneNameProvider,
Locale locale, String requestID, int style, String tzid) {
String value = null;
switch (requestID) {
case "std":
value = timeZoneNameProvider.getDisplayName(tzid, false, style, locale);
break;
case "dst":
value = timeZoneNameProvider.getDisplayName(tzid, true, style, locale);
break;
case "generic":
value = timeZoneNameProvider.getGenericDisplayName(tzid, style, locale);
break;
}
return value;
}
private static String getName(TimeZoneNameProvider timeZoneNameProvider,
Locale locale, String requestID, int style, String tzid) {
String value = null;
switch (requestID) {
case "std":
value = timeZoneNameProvider.getDisplayName(tzid, false, style, locale);
break;
case "dst":
value = timeZoneNameProvider.getDisplayName(tzid, true, style, locale);
break;
case "generic":
value = timeZoneNameProvider.getGenericDisplayName(tzid, style, locale);
break;
}
return value;
}
private static String[][] loadZoneStrings(Locale locale) {
// If the provider is a TimeZoneNameProviderImpl, call its getZoneStrings
// in order to avoid per-ID retrieval.
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(TimeZoneNameProvider.class, locale);
TimeZoneNameProvider provider = adapter.getTimeZoneNameProvider();
if (provider instanceof TimeZoneNameProviderImpl) {
return ((TimeZoneNameProviderImpl)provider).getZoneStrings(locale);
}
// Performs per-ID retrieval.
Set<String> zoneIDs = LocaleProviderAdapter.forJRE().getLocaleResources(locale).getZoneIDs();
List<String[]> zones = new LinkedList<>();
for (String key : zoneIDs) {
String[] names = retrieveDisplayNamesImpl(key, locale);
if (names != null) {
zones.add(names);
}
}
String[][] zonesArray = new String[zones.size()][];
return zones.toArray(zonesArray);
}
@Override
public String getObject(TimeZoneNameProvider timeZoneNameProvider,
Locale locale,
String requestID,
Object... params) {
assert params.length == 2;
int style = (int) params[0];
String tzid = (String) params[1];
String value = getName(timeZoneNameProvider, locale, requestID, style, tzid);
if (value == null) {
Map<String, String> aliases = ZoneInfo.getAliasTable();
if (aliases != null) {
String canonicalID = aliases.get(tzid);
if (canonicalID != null) {
value = getName(timeZoneNameProvider, locale, requestID, style, canonicalID);
}
if (value == null) {
value = examineAliases(timeZoneNameProvider, locale, requestID,
canonicalID != null ? canonicalID : tzid, style, aliases);
}
}
}
return value;
}
private static String getName(TimeZoneNameProvider timeZoneNameProvider,
Locale locale, String requestID, int style, String tzid) {
String value = null;
switch (requestID) {
case "std":
value = timeZoneNameProvider.getDisplayName(tzid, false, style, locale);
break;
case "dst":
value = timeZoneNameProvider.getDisplayName(tzid, true, style, locale);
break;
case "generic":
value = timeZoneNameProvider.getGenericDisplayName(tzid, style, locale);
break;
}
return value;
}
@Override
public String getObject(TimeZoneNameProvider timeZoneNameProvider,
Locale locale,
String requestID,
Object... params) {
assert params.length == 2;
int style = (int) params[0];
String tzid = (String) params[1];
String value = getName(timeZoneNameProvider, locale, requestID, style, tzid);
if (value == null) {
Map<String, String> aliases = ZoneInfo.getAliasTable();
if (aliases != null) {
String canonicalID = aliases.get(tzid);
if (canonicalID != null) {
value = getName(timeZoneNameProvider, locale, requestID, style, canonicalID);
}
if (value == null) {
value = examineAliases(timeZoneNameProvider, locale, requestID,
canonicalID != null ? canonicalID : tzid, style, aliases);
}
}
}
return value;
}
private static String[] examineAliases(TimeZoneNameProvider tznp, Locale locale,
String id,
Map<String, String> aliases) {
if (aliases.containsValue(id)) {
for (Map.Entry<String, String> entry : aliases.entrySet()) {
if (entry.getValue().equals(id)) {
String alias = entry.getKey();
String[] names = buildZoneStrings(tznp, locale, alias);
if (names != null) {
return names;
}
names = examineAliases(tznp, locale, alias, aliases);
if (names != null) {
return names;
}
}
}
}
return null;
}
@Override
public TimeZoneNameProvider getTimeZoneNameProvider() {
if (timeZoneNameProvider == null) {
TimeZoneNameProvider provider = AccessController.doPrivileged(
(PrivilegedAction<TimeZoneNameProvider>) () ->
new TimeZoneNameProviderImpl(
getAdapterType(),
getLanguageTagSet("TimeZoneNames")));
synchronized (this) {
if (timeZoneNameProvider == null) {
timeZoneNameProvider = provider;
}
}
}
return timeZoneNameProvider;
}
@Override
public String getObject(TimeZoneNameProvider timeZoneNameProvider,
Locale locale,
String requestID,
Object... params) {
assert params.length == 2;
int style = (int) params[0];
String tzid = (String) params[1];
String value = getName(timeZoneNameProvider, locale, requestID, style, tzid);
if (value == null) {
Map<String, String> aliases = ZoneInfo.getAliasTable();
if (aliases != null) {
String canonicalID = aliases.get(tzid);
if (canonicalID != null) {
value = getName(timeZoneNameProvider, locale, requestID, style, canonicalID);
}
if (value == null) {
value = examineAliases(timeZoneNameProvider, locale, requestID,
canonicalID != null ? canonicalID : tzid, style, aliases);
}
}
}
return value;
}
@Override
public String getObject(TimeZoneNameProvider timeZoneNameProvider,
Locale locale,
String requestID,
Object... params) {
assert params.length == 2;
int style = (int) params[0];
String tzid = (String) params[1];
String value = getName(timeZoneNameProvider, locale, requestID, style, tzid);
if (value == null) {
Map<String, String> aliases = ZoneInfo.getAliasTable();
if (aliases != null) {
String canonicalID = aliases.get(tzid);
if (canonicalID != null) {
value = getName(timeZoneNameProvider, locale, requestID, style, canonicalID);
}
if (value == null) {
value = examineAliases(timeZoneNameProvider, locale, requestID,
canonicalID != null ? canonicalID : tzid, style, aliases);
}
}
}
return value;
}
private static String getName(TimeZoneNameProvider timeZoneNameProvider,
Locale locale, String requestID, int style, String tzid) {
String value = null;
switch (requestID) {
case "std":
value = timeZoneNameProvider.getDisplayName(tzid, false, style, locale);
break;
case "dst":
value = timeZoneNameProvider.getDisplayName(tzid, true, style, locale);
break;
case "generic":
value = timeZoneNameProvider.getGenericDisplayName(tzid, style, locale);
break;
}
return value;
}
@Override
public TimeZoneNameProvider getTimeZoneNameProvider() {
if (timeZoneNameProvider == null) {
TimeZoneNameProvider provider = new TimeZoneNameProviderImpl(getAdapterType(),
getLanguageTagSet("TimeZoneNames"));
synchronized (this) {
if (timeZoneNameProvider == null) {
timeZoneNameProvider = provider;
}
}
}
return timeZoneNameProvider;
}
private static String[] retrieveDisplayNamesImpl(String id, Locale locale) {
LocaleServiceProviderPool pool =
LocaleServiceProviderPool.getPool(TimeZoneNameProvider.class);
String[] names;
Map<Locale, String[]> perLocale = null;
SoftReference<Map<Locale, String[]>> ref = cachedDisplayNames.get(id);
if (Objects.nonNull(ref)) {
perLocale = ref.get();
if (Objects.nonNull(perLocale)) {
names = perLocale.get(locale);
if (Objects.nonNull(names)) {
return names;
}
}
}
// build names array
names = new String[7];
names[0] = id;
for (int i = 1; i <= 6; i ++) {
names[i] = pool.getLocalizedObject(TimeZoneNameGetter.INSTANCE, locale,
i<5 ? (i<3 ? "std" : "dst") : "generic", i%2, id);
}
if (Objects.isNull(perLocale)) {
perLocale = new ConcurrentHashMap<>();
}
perLocale.put(locale, names);
ref = new SoftReference<>(perLocale);
cachedDisplayNames.put(id, ref);
return names;
}
private static String[] buildZoneStrings(TimeZoneNameProvider tznp,
Locale locale, String id) {
String[] names = new String[5];
for (int i = 1; i <= 4; i ++) {
names[i] = tznp.getDisplayName(id, i>=3, i%2, locale);
if (names[i] == null) {
switch (i) {
case 1:
// this id seems not localized by this provider
return null;
case 2:
case 4:
// If the display name for SHORT is not supplied,
// copy the LONG name.
names[i] = names[i-1];
break;
case 3:
// If the display name for DST is not supplied,
// copy the "standard" name.
names[3] = names[1];
break;
}
}
}
return names;
}