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ICU-7970 Add cache for getting currency code for a locale

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X-SVN-Rev: 29690
This commit is contained in:
John Emmons 2011-03-23 20:10:15 +00:00
parent 6bc896956f
commit b3c66b754f
1 changed files with 19 additions and 12 deletions
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31
icu4j/main/classes/core/src/com/ibm/icu/util/Currency.java
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@ -167,32 +167,39 @@ public class Currency extends MeasureUnit implements Serializable {
}
private static final String EUR_STR = "EUR";
private static final ICUCache<ULocale, String> currencyCodeCache = new SimpleCache<ULocale, String>();
/**
* Instantiate a currency from resource data.
*/
/* package */ static Currency createCurrency(ULocale loc) {
String variant = loc.getVariant();
if ("EURO".equals(variant)) {
return new Currency(EUR_STR);
}
String country = loc.getCountry();
String code = currencyCodeCache.get(loc);
if (code == null) {
String country = loc.getCountry();
CurrencyMetaInfo info = CurrencyMetaInfo.getInstance();
List<String> list = info.currencies(CurrencyFilter.onRegion(country));
if (list.size() > 0) {
String code = list.get(0);
boolean isPreEuro = "PREEURO".equals(variant);
if (isPreEuro && EUR_STR.equals(code)) {
if (list.size() < 2) {
return null;
CurrencyMetaInfo info = CurrencyMetaInfo.getInstance();
List<String> list = info.currencies(CurrencyFilter.onRegion(country));
if (list.size() > 0) {
code = list.get(0);
boolean isPreEuro = "PREEURO".equals(variant);
if (isPreEuro && EUR_STR.equals(code)) {
if (list.size() < 2) {
return null;
}
code = list.get(1);
}
code = list.get(1);
} else {
return null;
}
return new Currency(code);
currencyCodeCache.put(loc, code);
}
return null;
return new Currency(code);
}
/**