javax.money.spi.CurrencyProviderSpi Java Examples

/**
 * This default implementation simply returns all providers defined in arbitrary order.
 *
 * @return the default provider chain, never null.
 */
@Override
public List<String> getDefaultProviderChain() {
    List<String> provList = new ArrayList<>();
    String defaultChain = MonetaryConfig.getConfig().get("currencies.default-chain");
    if(defaultChain!=null) {
        String[] items = defaultChain.split(",");
        for (String item : items) {
            if (getProviderNames().contains(item.trim())) {
                provList.add(item);
            } else {
                Logger.getLogger(getClass().getName())
                        .warning("Ignoring non existing default provider: " + item);
            }
        }
    }
    else{
        Bootstrap.getServices(CurrencyProviderSpi.class).forEach(
                p -> provList.add(p.getProviderName())
        );
    }
    return provList;
}
 

@Override
public void start(BundleContext context) {
    // Register marker service
    this.serviceProvider = new OSGIServiceProvider(context);
    LOG.info("Registered OSGI ServiceProvider...");
    Bootstrap.init(this.serviceProvider);
    LOG.info("Registering JavaMoney services...");
    OSGIServiceHelper.registerService(context.getBundle(), CurrencyProviderSpi.class, JDKCurrencyProvider.class);
    OSGIServiceHelper.registerService(context.getBundle(), CurrencyProviderSpi.class, ConfigurableCurrencyUnitProvider.class);

    OSGIServiceHelper.registerService(context.getBundle(), MonetaryAmountFactoryProviderSpi.class, FastMoneyAmountFactoryProvider.class);
    OSGIServiceHelper.registerService(context.getBundle(), MonetaryAmountFactoryProviderSpi.class, MoneyAmountFactoryProvider.class);
    OSGIServiceHelper.registerService(context.getBundle(), MonetaryAmountFactoryProviderSpi.class, RoundedMoneyAmountFactoryProvider.class);

    OSGIServiceHelper.registerService(context.getBundle(), MonetaryAmountFormatProviderSpi.class, DefaultAmountFormatProviderSpi.class);

    OSGIServiceHelper.registerService(context.getBundle(), javax.money.spi.MonetaryAmountsSingletonQuerySpi.class, DefaultMonetaryAmountsSingletonQuerySpi.class);

    OSGIServiceHelper.registerService(context.getBundle(), javax.money.spi.MonetaryAmountsSingletonQuerySpi.class, DefaultMonetaryAmountsSingletonQuerySpi.class);
    OSGIServiceHelper.registerService(context.getBundle(), javax.money.spi.MonetaryAmountsSingletonSpi.class, DefaultMonetaryAmountsSingletonSpi.class);
    OSGIServiceHelper.registerService(context.getBundle(), javax.money.spi.MonetaryCurrenciesSingletonSpi.class, DefaultMonetaryCurrenciesSingletonSpi.class);
    OSGIServiceHelper.registerService(context.getBundle(), javax.money.spi.RoundingProviderSpi.class, DefaultRoundingProvider.class);
    OSGIServiceHelper.registerService(context.getBundle(), LoaderService.class, DefaultLoaderService.class);
    LOG.info("Registered JavaMoney services...");
}
 

@Override
public void stop(BundleContext context) {
    if(serviceProvider!=null) {
        LOG.info("Unregistering JavaMoney services...");
        OSGIServiceHelper.unregisterService(context.getBundle(), CurrencyProviderSpi.class, JDKCurrencyProvider.class);
        OSGIServiceHelper.unregisterService(context.getBundle(), CurrencyProviderSpi.class, ConfigurableCurrencyUnitProvider.class);

        OSGIServiceHelper.unregisterService(context.getBundle(), MonetaryAmountFactoryProviderSpi.class, FastMoneyAmountFactoryProvider.class);
        OSGIServiceHelper.unregisterService(context.getBundle(), MonetaryAmountFactoryProviderSpi.class, MoneyAmountFactoryProvider.class);
        OSGIServiceHelper.unregisterService(context.getBundle(), MonetaryAmountFactoryProviderSpi.class, RoundedMoneyAmountFactoryProvider.class);

        OSGIServiceHelper.unregisterService(context.getBundle(), MonetaryAmountFormatProviderSpi.class, DefaultAmountFormatProviderSpi.class);

        OSGIServiceHelper.unregisterService(context.getBundle(), javax.money.spi.MonetaryAmountsSingletonQuerySpi.class, DefaultMonetaryAmountsSingletonQuerySpi.class);

        OSGIServiceHelper.unregisterService(context.getBundle(), javax.money.spi.MonetaryAmountsSingletonQuerySpi.class, DefaultMonetaryAmountsSingletonQuerySpi.class);
        OSGIServiceHelper.unregisterService(context.getBundle(), javax.money.spi.MonetaryAmountsSingletonSpi.class, DefaultMonetaryAmountsSingletonSpi.class);
        OSGIServiceHelper.unregisterService(context.getBundle(), javax.money.spi.MonetaryCurrenciesSingletonSpi.class, DefaultMonetaryCurrenciesSingletonSpi.class);
        OSGIServiceHelper.unregisterService(context.getBundle(), javax.money.spi.RoundingProviderSpi.class, DefaultRoundingProvider.class);
        OSGIServiceHelper.unregisterService(context.getBundle(), LoaderService.class, DefaultLoaderService.class);
    }
}
 

@Override
public Set<CurrencyUnit> getCurrencies(CurrencyQuery query) {
    Set<CurrencyUnit> result = new HashSet<>();
    List<CurrencyProviderSpi> providers = collectProviders(query);
    for (CurrencyProviderSpi spi : providers) {
        try {
            result.addAll(spi.getCurrencies(query));
        } catch (Exception e) {
            Logger.getLogger(DefaultMonetaryCurrenciesSingletonSpi.class.getName())
                    .log(Level.SEVERE, "Error loading currency provider names for " + spi.getClass().getName(),
                            e);
        }
    }
    return result;
}
 

private boolean isCurrencyAvailable(CurrencyQuery query) {
    for (CurrencyProviderSpi provider : collectProviders(query)) {
        if (provider.isCurrencyAvailable(query)) {
            return true;
        }
    }
    return false;
}
 

private CurrencyProviderSpi getProvider(String providerName) {
    for(CurrencyProviderSpi provider:Bootstrap.getServices(CurrencyProviderSpi.class)){
        if(provider.getProviderName().equals(providerName)){
            return provider;
        }
    }
    return null;
}
 

/**
 * Get the names of the currently loaded providers.
 *
 * @return the names of the currently loaded providers, never null.
 */
@Override
public Set<String> getProviderNames() {
    Set<String> result = new HashSet<>();
    for (CurrencyProviderSpi spi : Bootstrap.getServices(CurrencyProviderSpi.class)) {
        try {
            result.add(spi.getProviderName());
        } catch (Exception e) {
            Logger.getLogger(DefaultMonetaryCurrenciesSingletonSpi.class.getName())
                    .log(Level.SEVERE, "Error loading currency provider names for " + spi.getClass().getName(),
                            e);
        }
    }
    return result;
}