Java MonetaryConversions类代码示例

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
@Test
public void testProviderComparison() {
    ExchangeRateProvider ecbRateProvider = MonetaryConversions.getExchangeRateProvider("ECB");
    ExchangeRateProvider imfRateProvider = MonetaryConversions.getExchangeRateProvider("IMF");

    CurrencyConversion ecbDollarConversion = ecbRateProvider.getCurrencyConversion("USD");
    CurrencyConversion imfDollarConversion = imfRateProvider.getCurrencyConversion("USD");

    try {
        // Wait for IMF provider to load
        Thread.sleep(10000L);
        for (String currency : new String[]{"INR", "CHF", "BRL"}) {
            Money money = Money.of(2, currency);
            System.out.println("ECB : " + money.with(ecbDollarConversion));
            System.out.println("IMF : " + money.with(imfDollarConversion));
            assertEquals("Too much difference (ECB/IMF) for " + money,
                    money.with(ecbDollarConversion).getNumber().doubleValue(), money.with(imfDollarConversion).getNumber().doubleValue(), 0.4d);
        }
    } catch (Exception e) {
        // This test may fail, if the network is slow or not available, so only write the exception as of now...
        e.printStackTrace();
    }

}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
public static void main(String[] args) {
    CurrencyUnit dollar = Monetary.getCurrency("USD");
    CurrencyUnit euro = Monetary.getCurrency("EUR");
    CurrencyUnit real = Monetary.getCurrency("BRL");

    MonetaryAmount money = Money.of(9, euro);
    MonetaryAmount money2 = Money.of(10, dollar);
    MonetaryAmount money3 = Money.of(11, real);

    ExchangeRateProvider provider =
            MonetaryConversions.getExchangeRateProvider(ExchangeRateType.IMF);

    ;
    List<MonetaryAmount> resultAsc = Stream.of(money, money2, money3)
            .sorted(MonetaryFunctions
                    .sortValuable(provider))
            .collect(Collectors.toList());//[BRL 11, EUR 9, USD 10]

    List<MonetaryAmount> resultDesc = Stream.of(money, money2, money3)
            .sorted(MonetaryFunctions
                    .sortValuableDesc(provider)).collect(Collectors.toList());//[USD 10, EUR 9, BRL 11]

}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
public static void main(String[] args) {
    CurrencyUnit dollar = Monetary.getCurrency("USD");
    CurrencyUnit euro = Monetary.getCurrency("EUR");
    ExchangeRateProvider provider = MonetaryConversions.getExchangeRateProvider(ExchangeRateType.IMF);

    MonetaryAmount money = Money.of(10, dollar);
    MonetaryAmount money2 = Money.of(10, euro);
    MonetaryAmount money3 = Money.of(10, dollar);
    MonetaryAmount money4 = Money.of(9, euro);
    MonetaryAmount money5 = Money.of(8, dollar);

    Optional<MonetaryAmount> max = Stream.of(money, money2, money3, money4, money5).reduce(
            MonetaryFunctions.max(provider));//javax.money.MonetaryException: Currency mismatch: BRL/USD
    max.ifPresent(System.out::println);//EUR 10

    Optional<MonetaryAmount> min = Stream.of(money, money2, money3, money4, money5).reduce(
            MonetaryFunctions.min(provider));
    min.ifPresent(System.out::println);//USD 8
    
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
public static void main(String[] args) {
    CurrencyUnit dollar = Monetary.getCurrency("USD");
    CurrencyUnit real = Monetary.getCurrency("BRL");

    ExchangeRateProvider provider = MonetaryConversions.getExchangeRateProvider(ExchangeRateType.IMF);


    MonetaryAmount money = Money.of(10, dollar);
    MonetaryAmount money2 = Money.of(10, real);
    MonetaryAmount money3 = Money.of(10, dollar);
    MonetaryAmount money4 = Money.of(9, real);
    MonetaryAmount money5 = Money.of(25, dollar);

    MonetarySummaryStatistics summary = Stream.of(money, money2, money3, money4, money5)
            .collect(ConversionOperators.summarizingMonetary(dollar, provider));

    MonetaryAmount min = summary.getMin();//USD 2.831248
    MonetaryAmount max = summary.getMax();//USD 25
    MonetaryAmount average = summary.getAverage();//USD 10.195416
    long count = summary.getCount();//5
    MonetaryAmount sum = summary.getSum();//50.97708

}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
public static void main(String[] args) {
    CurrencyUnit dollar = Monetary.getCurrency("USD");
    CurrencyUnit real = Monetary.getCurrency("BRL");
    ExchangeRateProvider provider = MonetaryConversions.getExchangeRateProvider(ExchangeRateType.IMF);

    MonetaryAmount money = Money.of(10, dollar);
    MonetaryAmount money2 = Money.of(10, dollar);
    MonetaryAmount money3 = Money.of(10, real);
    MonetaryAmount money4 = Money.of(9, dollar);
    MonetaryAmount money5 = Money.of(8, dollar);

    Optional<MonetaryAmount> result = Stream.of(money, money2, money3, money4, money5).reduce(
            MonetaryFunctions.sum(provider, dollar));//javax.money.MonetaryException: Currency mismatch: BRL/USD
    result.ifPresent(System.out::println);//money converted in dollar
    
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
@Test
public void testGetExchangeRateProvider_Chained()
		throws InterruptedException {
	ExchangeRateProvider prov = MonetaryConversions
			.getExchangeRateProvider("ECB");
	assertTrue(Objects.nonNull(prov));
	assertEquals(ECBCurrentRateProvider.class, prov.getClass());
	// Test rate provided by IMF (derived)
	Thread.sleep(5000L); // wait for provider to load...
	ExchangeRate r = prov.getExchangeRate(Monetary.getCurrency("USD"),
			Monetary.getCurrency("INR"));
	assertTrue(Objects.nonNull(r));
	assertTrue(r.isDerived());
	// Test rate provided by ECB
	r = prov.getExchangeRate(Monetary.getCurrency("EUR"),
			Monetary.getCurrency("CHF"));
	assertTrue(Objects.nonNull(r));
	assertFalse(r.isDerived());
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
@Test
public void testGetExchangeRateProvider_Chained()
		throws InterruptedException {
	ExchangeRateProvider prov = MonetaryConversions
			.getExchangeRateProvider("IMF");
	assertTrue(Objects.nonNull(prov));
	assertEquals(IMFRateProvider.class, prov.getClass());
	// Test rate provided by IMF (derived)
	Thread.sleep(5000L); // wait for provider to load...
	ExchangeRate exchangeRate = prov.getExchangeRate(Monetary.getCurrency("USD"),
			Monetary.getCurrency("INR"));
	assertTrue(Objects.nonNull(exchangeRate));
	assertTrue(exchangeRate.isDerived());
	// Test rate provided by ECB
	exchangeRate = prov.getExchangeRate(Monetary.getCurrency("EUR"),
			Monetary.getCurrency("CHF"));
	assertTrue(Objects.nonNull(exchangeRate));
	assertTrue(exchangeRate.isDerived());
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
public static void main(String[] args) {
	ExchangeRateProvider imfRateProvider = MonetaryConversions
			.getExchangeRateProvider("IMF");
	ExchangeRateProvider ecbRateProvider = MonetaryConversions
			.getExchangeRateProvider("ECB");

	CurrencyUnit real = Monetary.getCurrency("BRL");
	CurrencyUnit dollar = Monetary.getCurrency(Locale.US);

	CurrencyConversion ecbDollarConvertion = ecbRateProvider
			.getCurrencyConversion(dollar);

	CurrencyConversion imfDollarConvertion = imfRateProvider
			.getCurrencyConversion(dollar);

	MonetaryAmount money = Money.of(10, real);
	System.out.println(money.with(ecbDollarConvertion));
	System.out.println(money.with(imfDollarConvertion));
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
public static void main(String... args){
    System.out.println("Default conversion chain -> " + MonetaryConversions.getDefaultConversionProviderChain());

    ExchangeRateProvider provider = MonetaryConversions.getExchangeRateProvider("IDENT");
    System.out.println("IDENT provider -> " + provider);
    provider = MonetaryConversions.getExchangeRateProvider("IDENT", "ECB");
    System.out.println("IDENT, ECB provider -> " + provider);

    System.out.println(provider.getExchangeRate("CHF", "EUR"));
    System.out.println(provider.getExchangeRate("CHF", "CHF"));

    provider = MonetaryConversions.getExchangeRateProvider("IDENT", "IMF");
    System.out.println(provider.getExchangeRate("TND", "BRL"));

    provider = MonetaryConversions.getExchangeRateProvider("IDENT", "ECB", "ECB-HIST");
    System.out.println("CHF -> EUR (today) -> " + provider.getExchangeRate(ConversionQueryBuilder.of()
            .setBaseCurrency("EUR").setTermCurrency("CHF")
            //.set(new Date() LocalDate.of(2008, 1, 8))
            .build()));
    System.out.println("CHF -> EUR (1.8.2008) -> " + provider.getExchangeRate(ConversionQueryBuilder.of()
            .setBaseCurrency("EUR").setTermCurrency("CHF")
            //.set(LocalDate.of(2008, 1, 8))
            .build()));
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
public static void main(String... args) {
	String termCurrencyCode = DEFAULT_TERM_CURRENCY_CODE;
	if (args.length > 0) {
		termCurrencyCode = args[0];
	}
	final MonetaryAmount amt = Money.of(2000, "EUR");
	CurrencyConversion conv= MonetaryConversions.getConversion(termCurrencyCode, "ECB");
	System.out.println(MessageFormat.format("2000 EUR (ECB)-> {0} = {1}",
			termCurrencyCode, amt.with(conv)));
	conv= MonetaryConversions.getConversion(termCurrencyCode, "IMF");
	System.out.println(MessageFormat.format("2000 EUR (IMF)-> {0} = {1}",
			termCurrencyCode, amt.with(conv)));

	System.out.println(MessageFormat.format(
			"2000 EUR (ECB, at 5th Jan 2015)-> {0} = {1}",
			termCurrencyCode, amt.with(MonetaryConversions
					.getConversion(ConversionQueryBuilder.of()
							.setTermCurrency(termCurrencyCode)
							//.set(LocalDate.of(2015, 01, 05))
							.build()))));
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
@Test
public void testGetExchangeRateProvider_Chained()
		throws InterruptedException {
	ExchangeRateProvider prov = MonetaryConversions
			.getExchangeRateProvider("ECB", "IMF");
	assertTrue(prov != null);
	assertEquals(CompoundRateProvider.class, prov.getClass());
	// Test rate provided by IMF (derived)
	Thread.sleep(5000L); // wait for provider to load...
	ExchangeRate r = prov.getExchangeRate(Monetary.getCurrency("USD"),
			Monetary.getCurrency("INR"));
	assertTrue(r != null);
	assertTrue(r.isDerived());
	// Test rate provided by ECB
	r = prov.getExchangeRate(Monetary.getCurrency("EUR"),
			Monetary.getCurrency("CHF"));
	assertTrue(r != null);
	assertFalse(r.isDerived());
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
public static void main(String... args){
    System.out.println("Default conversion chain -> " + MonetaryConversions.getDefaultConversionProviderChain());

    ExchangeRateProvider provider = MonetaryConversions.getExchangeRateProvider("IDENT");
    System.out.println("IDENT provider -> " + provider);
    provider = MonetaryConversions.getExchangeRateProvider("IDENT", "ECB");
    System.out.println("IDENT, ECB provider -> " + provider);

    System.out.println(provider.getExchangeRate("CHF", "EUR"));
    System.out.println(provider.getExchangeRate("CHF", "CHF"));

    provider = MonetaryConversions.getExchangeRateProvider("IDENT", "IMF");
    System.out.println(provider.getExchangeRate("TND", "BRL"));

    provider = MonetaryConversions.getExchangeRateProvider("IDENT", "ECB", "ECB-HIST");
    System.out.println("CHF -> EUR (today) -> " + provider.getExchangeRate(ConversionQueryBuilder.of()
            .setBaseCurrency("EUR").setTermCurrency("CHF")
            .set(LocalDate.of(2008, 1, 8)).build()));
    System.out.println("CHF -> EUR (1.8.2008) -> " + provider.getExchangeRate(ConversionQueryBuilder.of()
            .setBaseCurrency("EUR").setTermCurrency("CHF")
            .set(LocalDate.of(2008, 1, 8)).build()));
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
public static void main(String... args) {
	String termCurrencyCode = DEFAULT_TERM_CURRENCY_CODE;
	if (args.length > 0) {
		termCurrencyCode = args[0];
	}
	final MonetaryAmount amt = Money.of(2000, "EUR");
	CurrencyConversion conv= MonetaryConversions.getConversion(termCurrencyCode, "ECB");
	System.out.println(MessageFormat.format("2000 EUR (ECB)-> {0} = {1}",
			termCurrencyCode, amt.with(conv)));
	conv= MonetaryConversions.getConversion(termCurrencyCode, "IMF");
	System.out.println(MessageFormat.format("2000 EUR (IMF)-> {0} = {1}",
			termCurrencyCode, amt.with(conv)));

	System.out.println(MessageFormat.format(
			"2000 EUR (ECB, at 5th Jan 2015)-> {0} = {1}",
			termCurrencyCode, amt.with(MonetaryConversions
					.getConversion(ConversionQueryBuilder.of()
							.setTermCurrency(termCurrencyCode)
							.set(LocalDate.of(2015, 01, 05)).build()))));
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
@Test
public void testGetExchangeRateProvider_Chained()
		throws InterruptedException {
	ExchangeRateProvider prov = MonetaryConversions
			.getExchangeRateProvider("ECB", "IMF");
	assertTrue(Objects.nonNull(prov));
	assertEquals(CompoundRateProvider.class, prov.getClass());
	// Test rate provided by IMF (derived)
	Thread.sleep(5000L); // wait for provider to load...
	ExchangeRate r = prov.getExchangeRate(Monetary.getCurrency("USD"),
			Monetary.getCurrency("INR"));
	assertTrue(Objects.nonNull(r));
	assertTrue(r.isDerived());
	// Test rate provided by ECB
	r = prov.getExchangeRate(Monetary.getCurrency("EUR"),
			Monetary.getCurrency("CHF"));
	assertTrue(Objects.nonNull(r));
	assertFalse(r.isDerived());
}
 

import javax.money.convert.MonetaryConversions; //导入依赖的package包/类
/**
 * Given a source transfer, compute the amount (in local units of the destination ledger) that should be transferred
 * to the next-hop local ledger.
 *
 * @param sourceTransfer          A {@link Transfer} with information from the incoming source transfer delivered to
 *                                this connector as part of a broader Interledger payment.
 * @param destinationLedgerPrefix An {@link InterledgerAddress} prefix for the destination ledger that the next-hop
 *                                tranfser will be delivered on.
 */
@VisibleForTesting
protected BigInteger computeNextHopLocalTransferAmount(
    final Transfer sourceTransfer,
    final InterledgerAddress destinationLedgerPrefix
) {
  Objects.requireNonNull(sourceTransfer);
  InterledgerAddress.requireAddressPrefix(destinationLedgerPrefix);

  final CurrencyUnit baseCurrencyUnit = this.ledgerPluginManager.getLedgerPlugin(sourceTransfer.getLedgerPrefix())
      .map(LedgerPlugin::getLedgerInfo)
      .map(LedgerInfo::getCurrencyUnit)
      .orElseThrow(() -> new LedgerPluginNotConnectedException(sourceTransfer.getLedgerPrefix()));

  final CurrencyUnit terminatingCurrencyUnit = this.ledgerPluginManager.getLedgerPlugin(destinationLedgerPrefix)
      .map(LedgerPlugin::getLedgerInfo)
      .map(LedgerInfo::getCurrencyUnit)
      .orElseThrow(() -> new LedgerPluginNotConnectedException(destinationLedgerPrefix));

  // This method does not catch the CurrencyConversionException because there's nothing to be done if that occurs. It
  // means that FX is not configured between the source/destination ledgers.
  return Optional.ofNullable(this.fxEngine.getExchangeRate(baseCurrencyUnit, terminatingCurrencyUnit))
      .map(fxRate -> {
        final MonetaryAmount sourceTransferMonetaryAmount = Money.of(sourceTransfer.getAmount(), baseCurrencyUnit);
        final CurrencyConversion conversion = MonetaryConversions.getConversion(terminatingCurrencyUnit);
        final MonetaryAmount terminatingMonetaryAmount = sourceTransferMonetaryAmount.with(conversion);
        return terminatingMonetaryAmount;
      })
      // Convert from a MonetaryAmount back to an Integer...
      .map(MonetaryAmount::getNumber)
      .map(numberValue -> numberValue.numberValueExact(BigInteger.class))
      // This is allowed because if fxEngine.getExchangeRate can't find a rate, it will throw an exception!
      .get();
}