@Override public int compareTo(ExchangeRate o) { if (o == null) { return -1; } int compare = ((Comparable<ExchangeRateType>) this.getExchangeRateType()) .compareTo(o.getExchangeRateType()); if (compare == 0) { if (provider != null) { compare = this.provider.compareTo(o.getProvider()); } else if (o.getProvider() != null) { compare = o.getProvider().compareTo(this.provider); } } return compare; }
public static void main(String[] args) { // getting CurrencyUnit by currency code and locale CurrencyUnit euro = Monetary.getCurrency("EUR"); CurrencyUnit dollar = Monetary.getCurrency(Locale.US); System.out.println("getting CurrencyUnit by currency code and locale"); System.out.printf("%s\n", euro); System.out.printf("%s\n", dollar); // getting MonetaryAmount by currency code and CurrencyUnit, without using Money (implementation // class) MonetaryAmount fiveEuro = Money.of(5, euro); MonetaryAmount twelveEuro = Money.of(new BigDecimal("12"), euro); MonetaryAmount tenDollar = Money.of(10, "USD"); MonetaryAmount tenPound = Monetary.getDefaultAmountFactory().setNumber(10).setCurrency("GBP").create(); System.out.println(); System.out.println( "getting MonetaryAmount by currency code and CurrencyUnit, without using Money (implementation class)"); System.out.printf("5 EUR: %s\n", fiveEuro); System.out.printf("12 EUR: %s\n", twelveEuro); System.out.printf("10 USD: %s\n", tenDollar); System.out.printf("10 GBP: %s\n", tenPound); // getting currency, the numeric amount and precision MonetaryAmount amount = Money.of(123.45, euro); System.out.println(); System.out.println("getting currency, the numeric amount and precision"); System.out.printf("123.45 EUR (currency): %s\n", amount.getCurrency()); System.out.printf("123.45 EUR (long): %s\n", amount.getNumber().longValue()); System.out.printf("123.45 EUR (number): %s\n", amount.getNumber()); System.out.printf( "123.45 EUR (fractionNumerator): %s\n", amount.getNumber().getAmountFractionNumerator()); System.out.printf( "123.45 EUR (fractionDenominator): %s\n", amount.getNumber().getAmountFractionDenominator()); System.out.printf( "123.45 EUR (amount, BigDecimal): %s\n", amount.getNumber().numberValue(BigDecimal.class)); // aritmetic MonetaryAmount seventeenEuros = fiveEuro.add(twelveEuro); MonetaryAmount sevenEuros = twelveEuro.subtract(fiveEuro); MonetaryAmount tenEuro = fiveEuro.multiply(2); MonetaryAmount twoPointFiveEuro = fiveEuro.divide(2); System.out.println(); System.out.println("aritmetic"); System.out.printf("5 EUR + 12 EUR: %s\n", seventeenEuros); System.out.printf("12 EUR - 5 EUR: %s\n", sevenEuros); System.out.printf("5 EUR * 2: %s\n", tenEuro); System.out.printf("5 EUR / 2: %s\n", twoPointFiveEuro); // negative MonetaryAmount minusSevenEuro = fiveEuro.subtract(twelveEuro); System.out.println(); System.out.println("negative"); System.out.printf("5 EUR - 12 EUR: %s\n", minusSevenEuro); // Note that MonetaryAmounts need to have the same CurrencyUnit to do mathematical operations // this fails with: javax.money.MonetaryException: Currency mismatch: EUR/USD // fiveEuro.add(tenDollar); // comparing System.out.println(); System.out.println("comparing"); System.out.printf("7€ < 10€: %s\n", sevenEuros.isLessThan(tenEuro)); System.out.printf("7€ > 10€: %s\n", sevenEuros.isGreaterThan(tenEuro)); System.out.printf("10 > 7€: %s\n", tenEuro.isGreaterThan(sevenEuros)); // rounding MonetaryAmount euros = Money.of(12.34567, "EUR"); MonetaryAmount roundedEuros = euros.with(Monetary.getDefaultRounding()); System.out.println(); System.out.println("rounding"); System.out.printf("12.34567 EUR redondeados: %s\n", roundedEuros); // streams List<MonetaryAmount> amounts = new ArrayList<>(); amounts.add(Money.of(2, "EUR")); amounts.add(Money.of(7, "USD")); amounts.add(Money.of(18, "USD")); amounts.add(Money.of(42, "USD")); amounts.add(Money.of(13.37, "GBP")); // filter List<MonetaryAmount> onlyDollars = amounts.stream().filter(MonetaryFunctions.isCurrency(dollar)).collect(Collectors.toList()); System.out.println(); System.out.println("filter"); System.out.printf("Solo USD: %s\n", onlyDollars); List<MonetaryAmount> euroAndDollar = amounts .stream() .filter(MonetaryFunctions.isCurrency(euro, dollar)) .collect(Collectors.toList()); System.out.printf("Solo EUR y USD: %s\n", euroAndDollar); List<MonetaryAmount> greaterThanTenDollar = amounts .stream() .filter(MonetaryFunctions.isCurrency(dollar)) .filter(MonetaryFunctions.isGreaterThan(tenDollar)) .collect(Collectors.toList()); System.out.printf("Solo USD y mayores que 10: %s\n", greaterThanTenDollar); List<MonetaryAmount> sortedByAmount = onlyDollars.stream().sorted(MonetaryFunctions.sortNumber()).collect(Collectors.toList()); System.out.printf("Solo USD y ordenados: %s\n", sortedByAmount); // grouping Map<CurrencyUnit, List<MonetaryAmount>> groupedByCurrency = amounts.stream().collect(MonetaryFunctions.groupByCurrencyUnit()); System.out.println(); System.out.println("grouping"); System.out.printf("Agrupación por divisa: %s\n", groupedByCurrency); // reduction List<MonetaryAmount> euroAmounts = new ArrayList<>(); euroAmounts.add(Money.of(7.5, "EUR")); euroAmounts.add(Money.of(10, "EUR")); euroAmounts.add(Money.of(12, "EUR")); Optional<MonetaryAmount> max = euroAmounts.stream().reduce(MonetaryFunctions.max()); Optional<MonetaryAmount> min = euroAmounts.stream().reduce(MonetaryFunctions.min()); Optional<MonetaryAmount> sum = euroAmounts.stream().reduce(MonetaryFunctions.sum()); System.out.println(); System.out.println("reduction"); System.out.printf("Máximo %s, mínimo %s, suma %s\n", max.get(), min.get(), sum.get()); // exchange rates ExchangeRateProvider exchangeRateProviderECB = MonetaryConversions.getExchangeRateProvider("ECB"); ExchangeRateProvider exchangeRateProviderOER = MonetaryConversions.getExchangeRateProvider("OER"); ExchangeRate exchangeRateECB = exchangeRateProviderECB.getExchangeRate("USD", "EUR"); ExchangeRate exchangeRateOER = exchangeRateProviderOER.getExchangeRate("USD", "EUR"); System.out.println(); System.out.println("exchange rates"); System.out.printf( "Ratio de conversión de USD a EUR (ECB, European Central Bank): %f\n", exchangeRateECB.getFactor().doubleValue()); System.out.printf( "Ratio de conversión de USD a EUR (OER, Open Exchange Rates): %f\n", exchangeRateOER.getFactor().doubleValue()); // conversion CurrencyConversion toEuroECB = MonetaryConversions.getConversion("EUR", "ECB"); CurrencyConversion toEuroOER = MonetaryConversions.getConversion("EUR", "OER"); MonetaryAmount tenDollarToEuroECB = tenDollar.with(toEuroECB); MonetaryAmount tenDollarToEuroOER = tenDollar.with(toEuroOER); System.out.println(); System.out.println("conversion"); System.out.printf("10 USD son %s EUR (ECB)\n", tenDollarToEuroECB); System.out.printf("10 USD son %s EUR (OER)\n", tenDollarToEuroOER); // formating MonetaryAmountFormat spainFormat = MonetaryFormats.getAmountFormat(new Locale("es", "ES")); MonetaryAmountFormat usFormat = MonetaryFormats.getAmountFormat(new Locale("en", "US")); MonetaryAmount fiveThousandEuro = Money.of(5000, euro); System.out.println(); System.out.println("formating"); System.out.printf( "Formato de 5000 EUR localizado en España: %s\n", spainFormat.format(fiveThousandEuro)); System.out.printf( "Formato de 5000 EUR localizado en Estados Unidos: %s\n", usFormat.format(fiveThousandEuro)); // parsing MonetaryAmount twelvePointFiveEuro = spainFormat.parse("12,50 EUR"); System.out.println(); System.out.println("parsing"); System.out.printf("Analizando «12,50 EUR» es %s\n", spainFormat.format(twelvePointFiveEuro)); // custom exchange rates provider ExchangeRateProvider customExchangeRateProvider = MonetaryConversions.getExchangeRateProvider("OER"); ExchangeRate customExchangeRate = customExchangeRateProvider.getExchangeRate("USD", "EUR"); System.out.println(); System.out.println("custom exchange rates"); System.out.printf( "Ratio de conversión de USD a EUR: %f\n", customExchangeRate.getFactor().doubleValue()); }