Example usage for java.math BigDecimal multiply

Introduction

In this page you can find the example usage for java.math BigDecimal multiply.

Prototype

public BigDecimal multiply(BigDecimal multiplicand) 

Source Link

Document

Returns a BigDecimal whose value is (this × multiplicand), and whose scale is (this.scale() + multiplicand.scale()) .

Usage

From source file:com.coinblesk.client.utils.UIUtils.java

public static Coin getValue(Context context, String amount) {
    BigDecimal bdAmount = new BigDecimal(amount);
    BigDecimal multiplicand = new BigDecimal(Coin.COIN.getValue());

    if (SharedPrefUtils.isBitcoinScaleBTC(context)) {
        multiplicand = new BigDecimal(Coin.COIN.getValue());
    } else if (SharedPrefUtils.isBitcoinScaleMilliBTC(context)) {
        multiplicand = new BigDecimal((Coin.MILLICOIN.getValue()));
    } else if (SharedPrefUtils.isBitcoinScaleMicroBTC(context)) {
        multiplicand = new BigDecimal((Coin.MICROCOIN.getValue()));
    }//  ww w .  j  a v a  2s .c o  m
    return Coin.valueOf((bdAmount.multiply(multiplicand).longValue()));
}

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From source file:id.ac.ipb.ilkom.training.controller.OrderController.java

@RequestMapping(value = "/add-to-cart", method = RequestMethod.POST)
@ResponseBody//w  ww.  j  av  a2 s .c o m
public AddToCartResponse addToCart(Integer productId, Integer quantity, HttpSession session) {
    //check if user already login or not
    Customer customer = (Customer) session.getAttribute("customer");
    if (customer == null) {
        AddToCartResponse response = new AddToCartResponse();
        response.setResult(false);
        response.setErrorMessage("Please login before buy product.");
        return response;
    }
    //check product
    Product product = productService.getProduct(productId);
    if (product == null) {
        AddToCartResponse response = new AddToCartResponse();
        response.setResult(false);
        response.setErrorMessage("Product id " + productId + " is not found .");
        return response;
    }
    Order order = (Order) session.getAttribute("cart");
    if (order == null) {
        List<OrderItem> orderItems = new ArrayList<>();
        order = new Order();
        order.setOrderItems(orderItems);
    }
    boolean isProductFoundInOrderItems = false;
    for (OrderItem orderItem : order.getOrderItems()) {
        if (orderItem.getProduct().getId().equals(productId)) {
            orderItem.setQuantity(orderItem.getQuantity() + quantity);
            isProductFoundInOrderItems = true;
            break;
        }
    }
    if (!isProductFoundInOrderItems) {
        OrderItem orderItem = new OrderItem();
        orderItem.setQuantity(quantity);
        orderItem.setProduct(product);
        orderItem.setPrice(product.getPrice());
        orderItem.setOrder(order); //tambahan
        order.getOrderItems().add(orderItem);
    }
    BigDecimal total = BigDecimal.ZERO;
    for (OrderItem orderItem : order.getOrderItems()) {
        BigDecimal price = orderItem.getPrice();
        BigDecimal subTotal = price.multiply(new BigDecimal(orderItem.getQuantity()));
        total = total.add(subTotal);
    }
    order.setCreatedDate(new Date());
    order.setCustomer(customer);
    order.setTotal(total);
    //check
    session.setAttribute("cart", order);
    AddToCartResponse response = new AddToCartResponse();
    response.setResult(true);
    return response;
}

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From source file:jp.furplag.util.commons.NumberUtils.java

public static BigDecimal cos(final BigDecimal angle, MathContext mc, boolean isRadians) {
    if (angle == null)
        return null;
    BigDecimal cos = BigDecimal.ONE;
    BigDecimal radians = isRadians ? angle : valueOf(toRadians(angle), BigDecimal.class);
    BigDecimal nSquare = radians.pow(2);
    int index = 0;
    for (BigDecimal factor : COSINE_FACTOR_DECIMAL128) {
        BigDecimal temporary = factor.multiply(nSquare);
        if (index % 2 == 0)
            temporary = temporary.negate();
        cos = cos.add(temporary);/*from w w w .  j  a v  a 2 s .c o  m*/
        nSquare = nSquare.multiply(radians.pow(2)).setScale(
                ((mc == null ? MathContext.DECIMAL128 : mc).getPrecision() + 2), RoundingMode.HALF_UP);
        index++;
    }

    return cos.setScale((mc == null ? MathContext.DECIMAL128 : mc).getPrecision(), RoundingMode.HALF_UP);
}

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From source file:com.gtp.tradeapp.rest.TransactionController.java

private Transaction updateWithLatestPrice(Transaction transaction) {
    MarketInstrument latestStockPrice = dataService.getLatestStockPrice(transaction.getTicker());
    BigDecimal price = latestStockPrice.getStocklist().get(0).getPrice();

    transaction.setPrice(price);/*from w  ww  .  j a  v a  2  s.  c o  m*/
    transaction.setTotal(price.multiply(BigDecimal.valueOf(transaction.getQty())));
    return transaction;
}

---

From source file:org.mayocat.shop.shipping.DefaultShippingService.java

private ShippingOption getOption(Carrier carrier, Map<Purchasable, Long> items) {
    if (carrier == null) {
        return null;
    }/*from w w w. j  a v  a  2 s.c o m*/
    Strategy strategy = carrier.getStrategy();
    try {
        StrategyPriceCalculator priceCalculator = componentManager.getInstance(StrategyPriceCalculator.class,
                carrier.getStrategy().toJson());
        BigDecimal optionPrice = priceCalculator.getPrice(carrier, items);
        BigDecimal vat = optionPrice.multiply(carrier.getVatRate());
        BigDecimal optionPriceIncl = optionPrice.add(vat);

        PriceWithTaxes price = new PriceWithTaxes(optionPriceIncl, optionPrice, carrier.getVatRate());

        return new ShippingOption(carrier.getId(), carrier.getTitle(), price);
    } catch (ComponentLookupException e) {
        throw new RuntimeException("Failed to calculate price for strategy " + strategy.toJson()
                + " : no such strategy calculator");
    }
}

---

From source file:org.gradle.performance.measure.DataSeries.java

public DataSeries(Iterable<? extends Amount<Q>> values) {
    for (Amount<Q> value : values) {
        if (value != null) {
            add(value);//  w w w. j a va  2 s  .c  om
        }
    }

    if (isEmpty()) {
        average = null;
        median = null;
        max = null;
        min = null;
        standardError = null;
        return;
    }

    Amount<Q> total = get(0);
    Amount<Q> min = get(0);
    Amount<Q> max = get(0);
    for (int i = 1; i < size(); i++) {
        Amount<Q> amount = get(i);
        total = total.plus(amount);
        min = min.compareTo(amount) <= 0 ? min : amount;
        max = max.compareTo(amount) >= 0 ? max : amount;
    }
    List<Amount<Q>> sorted = Lists.newArrayList(this);
    Collections.sort(sorted);
    Amount<Q> medianLeft = sorted.get((sorted.size() - 1) / 2);
    Amount<Q> medianRight = sorted.get((sorted.size() - 1) / 2 + 1 - sorted.size() % 2);
    median = medianLeft.plus(medianRight).div(2);
    average = total.div(size());
    this.min = min;
    this.max = max;

    BigDecimal sumSquares = BigDecimal.ZERO;
    Units<Q> baseUnits = average.getUnits().getBaseUnits();
    BigDecimal averageValue = average.toUnits(baseUnits).getValue();
    for (int i = 0; i < size(); i++) {
        Amount<Q> amount = get(i);
        BigDecimal diff = amount.toUnits(baseUnits).getValue();
        diff = diff.subtract(averageValue);
        diff = diff.multiply(diff);
        sumSquares = sumSquares.add(diff);
    }
    // This isn't quite right, as we may lose precision when converting to a double
    BigDecimal result = BigDecimal
            .valueOf(Math
                    .sqrt(sumSquares.divide(BigDecimal.valueOf(size()), RoundingMode.HALF_UP).doubleValue()))
            .setScale(2, RoundingMode.HALF_UP);

    standardError = Amount.valueOf(result, baseUnits);
}

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From source file:org.gradle.api.internal.tasks.testing.junit.report.DefaultTestReport.java

private void mergeFromFile(File file, AllTestResults model) {
    try {/*from   ww w . j  a v  a 2  s. c o m*/
        InputStream inputStream = new FileInputStream(file);
        Document document;
        try {
            document = DocumentBuilderFactory.newInstance().newDocumentBuilder()
                    .parse(new InputSource(inputStream));
        } finally {
            inputStream.close();
        }
        NodeList testCases = document.getElementsByTagName("testcase");
        for (int i = 0; i < testCases.getLength(); i++) {
            Element testCase = (Element) testCases.item(i);
            String className = testCase.getAttribute("classname");
            String testName = testCase.getAttribute("name");
            LocaleSafeDecimalFormat format = new LocaleSafeDecimalFormat();
            BigDecimal duration = format.parse(testCase.getAttribute("time"));
            duration = duration.multiply(BigDecimal.valueOf(1000));
            NodeList failures = testCase.getElementsByTagName("failure");
            TestResult testResult = model.addTest(className, testName, duration.longValue());
            for (int j = 0; j < failures.getLength(); j++) {
                Element failure = (Element) failures.item(j);
                testResult.addFailure(failure.getAttribute("message"), failure.getTextContent());
            }
        }
        NodeList ignoredTestCases = document.getElementsByTagName("ignored-testcase");
        for (int i = 0; i < ignoredTestCases.getLength(); i++) {
            Element testCase = (Element) ignoredTestCases.item(i);
            String className = testCase.getAttribute("classname");
            String testName = testCase.getAttribute("name");
            model.addTest(className, testName, 0).ignored();
        }
        String suiteClassName = document.getDocumentElement().getAttribute("name");
        ClassTestResults suiteResults = model.addTestClass(suiteClassName);
        NodeList stdOutElements = document.getElementsByTagName("system-out");
        for (int i = 0; i < stdOutElements.getLength(); i++) {
            suiteResults.addStandardOutput(stdOutElements.item(i).getTextContent());
        }
        NodeList stdErrElements = document.getElementsByTagName("system-err");
        for (int i = 0; i < stdErrElements.getLength(); i++) {
            suiteResults.addStandardError(stdErrElements.item(i).getTextContent());
        }
    } catch (Exception e) {
        throw new GradleException(String.format("Could not load test results from '%s'.", file), e);
    }
}

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From source file:com.ning.billing.invoice.dao.InvoiceItemDaoTests.java

@Test
public void testGetInvoiceItemsByInvoiceId() {
    UUID invoiceId = UUID.randomUUID();
    DateTime startDate = new DateTime(2011, 3, 1, 0, 0, 0, 0);
    BigDecimal rate = new BigDecimal("20.00");

    for (int i = 0; i < 5; i++) {
        UUID subscriptionId = UUID.randomUUID();
        BigDecimal amount = rate.multiply(new BigDecimal(i + 1));
        DefaultInvoiceItem item = new DefaultInvoiceItem(invoiceId, subscriptionId, startDate,
                startDate.plusMonths(1), "test", amount, amount, Currency.USD);
        invoiceItemDao.create(item);/* www  .jav a 2  s .co  m*/
    }

    List<InvoiceItem> items = invoiceItemDao.getInvoiceItemsByInvoice(invoiceId.toString());
    assertEquals(items.size(), 5);
}

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From source file:ca.travelagency.salesstats.InvoiceSales.java

public BigDecimal getCommissionEstimated() {
    if (systemUser == null) {
        return MoneyUtils.ZERO_VALUE;
    }//from w  w w. ja  v a 2 s .  c o  m
    BigDecimal commission = getTotalSales().getCommission();
    BigDecimal commissionRate = new BigDecimal(systemUser.getCommissionRate() / 100);
    return MoneyUtils.round(commission.multiply(commissionRate));
}

---

From source file:ca.travelagency.salesstats.InvoiceSales.java

public BigDecimal getCommissionRPayable() {
    if (systemUser == null) {
        return MoneyUtils.ZERO_VALUE;
    }/* ww w. j a v  a2s. c  om*/
    BigDecimal commissionReceived = getTotalSales().getCommissionReceived();
    BigDecimal commissionRate = new BigDecimal(systemUser.getCommissionRate() / 100);
    return MoneyUtils.round(commissionReceived.multiply(commissionRate));
}

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