Java Code Examples for java.math.BigDecimal#compareTo()

/** Multiplies an expression by a constant and divides by another constant,
 * optimizing appropriately.
 *
 * <p>For example, {@code multiplyDivide(e, 10, 1000)} returns
 * {@code e / 100}. */
public static Expression multiplyDivide(Expression e, BigDecimal multiplier,
    BigDecimal divider) {
  if (multiplier.equals(BigDecimal.ONE)) {
    if (divider.equals(BigDecimal.ONE)) {
      return e;
    }
    return Expressions.divide(e,
        Expressions.constant(divider.intValueExact()));
  }
  final BigDecimal x =
      multiplier.divide(divider, RoundingMode.UNNECESSARY);
  switch (x.compareTo(BigDecimal.ONE)) {
  case 0:
    return e;
  case 1:
    return Expressions.multiply(e, Expressions.constant(x.intValueExact()));
  case -1:
    return multiplyDivide(e, BigDecimal.ONE, x);
  default:
    throw new AssertionError();
  }
}
 

/**
 * 提供（相对）精确的除法运算。当发生除不尽的情况时，由scale参数指
 * 定精度，以后的数字四舍五入。
 * @param v1 被除数
 * @param v2 除数
 * @param scale 表示表示需要精确到小数点以后几位。
 * @return 两个参数的商
 */
public static double div(double v1, double v2, int scale)
{
    if (scale < 0)
    {
        throw new IllegalArgumentException(
                "The scale must be a positive integer or zero");
    }
    BigDecimal b1 = new BigDecimal(Double.toString(v1));
    BigDecimal b2 = new BigDecimal(Double.toString(v2));
    if (b1.compareTo(BigDecimal.ZERO) == 0)
    {
        return BigDecimal.ZERO.doubleValue();
    }
    return b1.divide(b2, scale, BigDecimal.ROUND_HALF_UP).doubleValue();
}
 

BigDecimal getLimitPrice(Exchange exchange, CurrencyPair rawCurrencyPair, BigDecimal allowedVolume, Order.OrderType orderType) {
    CurrencyPair currencyPair = exchangeService.convertExchangePair(exchange, rawCurrencyPair);

    try {
        OrderBook orderBook = exchange.getMarketDataService().getOrderBook(currencyPair);
        List<LimitOrder> orders = orderType.equals(Order.OrderType.ASK) ? orderBook.getAsks() : orderBook.getBids();
        BigDecimal price;
        BigDecimal volume = BigDecimal.ZERO;

        for (LimitOrder order : orders) {
            price = order.getLimitPrice();
            volume = volume.add(order.getRemainingAmount());

            if (volume.compareTo(allowedVolume) > 0) {
                return price;
            }
        }
    } catch (IOException e) {
        LOGGER.error("IOE fetching {} {} order volume", exchange.getExchangeSpecification().getExchangeName(), currencyPair, e);
    }

    throw new RuntimeException("Not enough liquidity on exchange to fulfill required volume!");
}
 

public static void assertRoundEquals(BigDecimal bd1, BigDecimal bd2) {
    bd1 = bd1.round(PDataType.DEFAULT_MATH_CONTEXT);
    bd2 = bd2.round(PDataType.DEFAULT_MATH_CONTEXT);
    if (bd1.compareTo(bd2) != 0) {
        fail("expected:<" + bd1 + "> but was:<" + bd2 + ">");
    }
}
 

public boolean isTotalShiftLoadExceeded() {
    final BigDecimal totalHours = getTotalHours();
    for (final CourseLoad courseLoad : getCourseLoadsSet()) {
        if (totalHours.compareTo(courseLoad.getTotalQuantity()) == 1) {
            return true;
        }
    }
    return false;
}
 

private String fixOffset(String offsetColumn, String offset) {
  com.sforce.soap.partner.Field sfdcField = ((SobjectRecordCreator)recordCreator).getFieldMetadata(sobjectType, offsetColumn);
  if (SobjectRecordCreator.DECIMAL_TYPES.contains(sfdcField.getType().toString())
      && offset.contains("E")) {
    BigDecimal val = new BigDecimal(offset);
    offset = val.toPlainString();
    if (val.compareTo(MAX_OFFSET_INT) > 0 && !offset.contains(".")) {
      // We need the ".0" suffix since Salesforce doesn't like integer
      // bigger than 2147483647
      offset += ".0";
    }
  }
  return offset;
}
 

@Override
public QuoteDataBean updateQuotePriceVolume(String symbol, BigDecimal changeFactor, double sharesTraded) {
    if (!TradeConfig.getUpdateQuotePrices()) {
        return new QuoteDataBean();
    }

    if (Log.doTrace()) {
        Log.trace("TradeSLSBBean:updateQuote", symbol, changeFactor);
    }

    TypedQuery<QuoteDataBean> q = entityManager.createNamedQuery("quoteejb.quoteForUpdate",QuoteDataBean.class);
    q.setParameter(1, symbol);
    QuoteDataBean quote = q.getSingleResult();

    BigDecimal oldPrice = quote.getPrice();
    BigDecimal openPrice = quote.getOpen();

    if (oldPrice.equals(TradeConfig.PENNY_STOCK_PRICE)) {
        changeFactor = TradeConfig.PENNY_STOCK_RECOVERY_MIRACLE_MULTIPLIER;
    } else if (oldPrice.compareTo(TradeConfig.MAXIMUM_STOCK_PRICE) > 0) {
        changeFactor = TradeConfig.MAXIMUM_STOCK_SPLIT_MULTIPLIER;
    }

    BigDecimal newPrice = changeFactor.multiply(oldPrice).setScale(2, BigDecimal.ROUND_HALF_UP);

    quote.setPrice(newPrice);
    quote.setChange(newPrice.subtract(openPrice).doubleValue());
    quote.setVolume(quote.getVolume() + sharesTraded);
    entityManager.merge(quote);

    context.getBusinessObject(TradeSLSBLocal.class).publishQuotePriceChange(quote, oldPrice, changeFactor, sharesTraded);
   
    return quote;
}
 

private void fillCourseLoads(ExecutionCourse execution, CurricularCourse curricular) {
    for (ShiftType shiftType : ShiftType.values()) {
        BigDecimal totalHours = curricular.getTotalHoursByShiftType(shiftType, execution.getExecutionPeriod());
        if (totalHours != null && totalHours.compareTo(BigDecimal.ZERO) == 1) {
            CourseLoad courseLoad = execution.getCourseLoadByShiftType(shiftType);
            if (courseLoad == null) {
                new CourseLoad(execution, shiftType, null, totalHours);
            }
        }
    }
}
 

private boolean isValidRange(Number num) {
    final boolean ret;

    if (num instanceof Float || num instanceof Long || num instanceof Integer || num instanceof Short || num instanceof Byte) {
        ret = true;
    } else if (num instanceof Double) {
        ret = num.floatValue() >= MIN_VALUE.floatValue() && num.floatValue() <= MAX_VALUE.floatValue();
    } else {
        BigDecimal number = new BigDecimal(num.doubleValue());

        ret = (number.compareTo(MIN_VALUE) >= 0) && (number.compareTo(MAX_VALUE) <= 0);
    }

    return ret;
}
 

protected boolean checkConditions(BigDecimal newValue, DecimalType oldvalue) {
    if (min != null && newValue.compareTo(min) == -1) {
        logger.trace("Number not accepted as it is below the configured minimum");
        return false;
    }
    if (max != null && newValue.compareTo(max) == 1) {
        logger.trace("Number not accepted as it is above the configured maximum");
        return false;
    }

    return true;
}
 

/**
 * Copy payments from selected advance payment invoices to this invoice.
 *
 * @param invoice
 */
protected void copyAdvancePaymentToInvoice(Invoice invoice) throws AxelorException {
  Set<Invoice> advancePaymentInvoiceSet = invoice.getAdvancePaymentInvoiceSet();
  if (advancePaymentInvoiceSet == null) {
    return;
  }
  for (Invoice advancePaymentInvoice : advancePaymentInvoiceSet) {

    List<InvoicePayment> advancePayments = advancePaymentInvoice.getInvoicePaymentList();
    if (advancePayments == null) {
      continue;
    }
    for (InvoicePayment advancePayment : advancePayments) {

      InvoicePayment imputationPayment =
          invoicePaymentCreateService.createInvoicePayment(
              invoice,
              advancePayment.getAmount(),
              advancePayment.getPaymentDate(),
              advancePayment.getCurrency(),
              advancePayment.getPaymentMode(),
              InvoicePaymentRepository.TYPE_ADV_PAYMENT_IMPUTATION);
      advancePayment.setImputedBy(imputationPayment);
      imputationPayment.setCompanyBankDetails(advancePayment.getCompanyBankDetails());
      invoice.addInvoicePaymentListItem(imputationPayment);
      invoicePaymentRepo.save(imputationPayment);
    }
  }

  // if the sum of amounts in advance payment is greater than the amount
  // of the invoice, then we cancel the ventilation.
  List<InvoicePayment> invoicePayments = invoice.getInvoicePaymentList();
  if (invoicePayments == null || invoicePayments.isEmpty()) {
    return;
  }
  BigDecimal totalPayments =
      invoicePayments.stream().map(InvoicePayment::getAmount).reduce(BigDecimal::add).get();
  if (totalPayments.compareTo(invoice.getInTaxTotal()) > 0) {
    throw new AxelorException(
        invoice,
        TraceBackRepository.TYPE_FUNCTIONNAL,
        I18n.get(IExceptionMessage.AMOUNT_ADVANCE_PAYMENTS_TOO_HIGH));
  }
}
 

/**
 * Encode the large magnitude floating point number {@code val} using
 * the key encoding. The caller guarantees that {@code val} will be
 * finite and abs(val) >= 1.0.
 * <p>
 * A floating point value is encoded as an integer exponent {@code E}
 * and a mantissa {@code M}. The original value is equal to
 * {@code (M * 100^E)}. {@code E} is set to the smallest value
 * possible without making {@code M} greater than or equal to 1.0.
 * </p>
 * <p>
 * Each centimal digit of the mantissa is stored in a byte. If the value of
 * the centimal digit is {@code X} (hence {@code X>=0} and
 * {@code X<=99}) then the byte value will be {@code 2*X+1} for
 * every byte of the mantissa, except for the last byte which will be
 * {@code 2*X+0}. The mantissa must be the minimum number of bytes
 * necessary to represent the value; trailing {@code X==0} digits are
 * omitted. This means that the mantissa will never contain a byte with the
 * value {@code 0x00}.
 * </p>
 * <p>
 * If {@code E > 10}, then this routine writes of {@code E} as a
 * varint followed by the mantissa as described above. Otherwise, if
 * {@code E <= 10}, this routine only writes the mantissa and leaves
 * the {@code E} value to be encoded as part of the opening byte of the
 * field by the calling function.
 *
 * <pre>
 *   Encoding:  M       (if E<=10)
 *              E M     (if E>10)
 * </pre>
 * </p>
 * @param dst The destination to which encoded digits are written.
 * @param val The value to encode.
 * @return the number of bytes written.
 */
private static int encodeNumericLarge(PositionedByteRange dst, BigDecimal val) {
  // TODO: this can be done faster
  BigDecimal abs = val.abs();
  byte[] a = dst.getBytes();
  boolean isNeg = val.signum() == -1;
  final int start = dst.getPosition(), offset = dst.getOffset();
  int e = 0, d, startM;

  if (isNeg) { /* Large negative number: 0x08, ~E, ~M */
    dst.put(NEG_LARGE);
  } else { /* Large positive number: 0x22, E, M */
    dst.put(POS_LARGE);
  }

  // normalize abs(val) to determine E
  while (abs.compareTo(E32) >= 0 && e <= 350) { abs = abs.movePointLeft(32); e +=16; }
  while (abs.compareTo(E8) >= 0 && e <= 350) { abs = abs.movePointLeft(8); e+= 4; }
  while (abs.compareTo(BigDecimal.ONE) >= 0 && e <= 350) { abs = abs.movePointLeft(2); e++; }

  // encode appropriate header byte and/or E value.
  if (e > 10) { /* large number, write out {~,}E */
    putVaruint64(dst, e, isNeg);
  } else {
    if (isNeg) { /* Medium negative number: 0x13-E, ~M */
      dst.put(start, (byte) (NEG_MED_MAX - e));
    } else { /* Medium positive number: 0x17+E, M */
      dst.put(start, (byte) (POS_MED_MIN + e));
    }
  }

  // encode M by peeling off centimal digits, encoding x as 2x+1
  startM = dst.getPosition();
  // TODO: 18 is an arbitrary encoding limit. Reevaluate once we have a better handling of
  // numeric scale.
  for (int i = 0; i < 18 && abs.compareTo(BigDecimal.ZERO) != 0; i++) {
    abs = abs.movePointRight(2);
    d = abs.intValue();
    dst.put((byte) (2 * d + 1));
    abs = abs.subtract(BigDecimal.valueOf(d));
  }
  // terminal digit should be 2x
  a[offset + dst.getPosition() - 1] = (byte) (a[offset + dst.getPosition() - 1] & 0xfe);
  if (isNeg) {
    // negative values encoded as ~M
    DESCENDING.apply(a, offset + startM, dst.getPosition() - startM);
  }
  return dst.getPosition() - start;
}
 

private boolean isBigger(BigDecimal number) {
    return number.compareTo(mMaxNumber) > 0;
}
 

/**
 * Tack on the cost of the magical enhancement(s).
 * 
 * @param iPlus the Pluses of the primary head
 * @param altPlus the Pluses of the secondary head
 * @return cost from pluses
 */
private BigDecimal getCostFromPluses(final int iPlus, final int altPlus)
{

	if (((iPlus != 0) || (altPlus != 0)) && (JEPResourceChecker.getMissingResourceCount() == 0))
	{
		PJEP myParser = null;
		try
		{
			myParser = PjepPool.getInstance().aquire();
			myParser.addVariable("PLUS", iPlus);
			myParser.addVariable("ALTPLUS", altPlus);
			myParser.addVariable("BASECOST", getSafe(ObjectKey.COST).doubleValue());

			if (isAmmunition())
			{
				myParser.addVariable("BASEQTY", getSafe(IntegerKey.BASE_QUANTITY));
			}

			// Look for an expression for all of this item's types
			// If there is more than 1, use the most expensive.
			String costExpr;
			BigDecimal maxCost = null;
			final List<String> itemTypes = typeList();

               for (String typeMatched : itemTypes)
               {
                   costExpr = SettingsHandler.getGameAsProperty().get().getPlusCalculation(Type.getConstant(typeMatched));

                   if (costExpr != null)
                   {
                       final BigDecimal thisCost = evaluateCost(myParser, costExpr);

                       if ((maxCost == null) || (thisCost.compareTo(maxCost) > 1))
                       {
                           maxCost = thisCost;
                       }
                   }
               }

			if (maxCost != null)
			{
				return maxCost;
			}

			//
			// No cost formula found, check for catch-all definition
			//
			costExpr = SettingsHandler.getGameAsProperty().get().getPlusCalculation(Type.ANY);

			if (costExpr != null)
			{
				return evaluateCost(myParser, costExpr);
			}
		}
		finally
		{
			PjepPool.getInstance().release(myParser);
		}
	}

	return BigDecimal.ZERO;
}
 

/**
 * SCIPIO: Verifies if current payment methods in cart are adequate enough to cover the current order, or in
 * other words the cart payments in current state can effectively be used to pay for the order.
 * <p>
 * The definition of "adequate" is abstracted by this method. Currently, it requires that the payment method
 * total equals exactly the grand total. Due to stock code function, this is only true after a successful
 * call to {@link CheckOutHelper#validatePaymentMethods} (WARN: it is NOT necessarily true after a call to
 * {@link CheckOutHelper#setCheckOutPayment}!).
 *
 * @see CheckOutHelper#validatePaymentMethods()
 */
public static boolean isPaymentsAdequate(ShoppingCart cart) {
    BigDecimal reqAmtPreParse = cart.getGrandTotal().subtract(cart.getBillingAccountAmount());
    BigDecimal selectedPmnt = cart.getPaymentTotal();

    BigDecimal selectedPaymentTotal = selectedPmnt.setScale(scale, rounding);
    BigDecimal requiredAmount = reqAmtPreParse.setScale(scale, rounding);

    return (requiredAmount.compareTo(selectedPaymentTotal) == 0);
}
 

/**
 * @param aValue
 *        Value to compare. May not be <code>null</code>.
 * @return <code>true</code> if the value is &ge; 0.
 */
public static boolean isGE0 (@Nonnull final BigDecimal aValue)
{
  return aValue.compareTo (BigDecimal.ZERO) >= 0;
}
 

/**
 * 比较 num1 是否大于 num2
 *
 * @param num1
 * @param num2
 * @return boolean
 */
public static boolean isGreaterThan(BigDecimal num1, BigDecimal num2) {
    return num1.compareTo(num2) == 1;
}
 

/**
 * @param aValue
 *        Value to compare. May not be <code>null</code>.
 * @return <code>true</code> if the value is &lt; 100.
 */
public static boolean isLT100 (@Nonnull final BigDecimal aValue)
{
  return aValue.compareTo (CGlobal.BIGDEC_100) < 0;
}
 

/**
 * @param aValue
 *        Value to compare. May not be <code>null</code>.
 * @return <code>true</code> if the value is &le; 100.
 */
public static boolean isLE100 (@Nonnull final BigDecimal aValue)
{
  return aValue.compareTo (CGlobal.BIGDEC_100) <= 0;
}
 

/**
 * Check if positive.
 *
 * @param value  value
 *
 * @return true if value is greater than zero (null safe)
 */
public static boolean isPositive(final BigDecimal value) {

    return value != null && value.compareTo(BigDecimal.ZERO) > 0;

}