Example usage for java.math BigDecimal ONE

List of usage examples for java.math BigDecimal ONE

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Introduction

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

Prototype

BigDecimal ONE

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Document

The value 1, with a scale of 0.

Usage

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

/**
 * generate cosine factor for trigonometric functions in BigDecimal.
 *
 * @param mc {@link java.math.MathContext}.
 * @return list of cosine factors./*w w w .  j av  a  2s .co m*/
 */
private static List<BigDecimal> initCosineFactor(MathContext mc) {
    int precision = (mc == null ? MathContext.DECIMAL128 : mc).getPrecision();
    List<BigDecimal> factors = new ArrayList<BigDecimal>();
    BigDecimal divisor = BigDecimal.valueOf(2d);
    BigDecimal temporary = BigDecimal.valueOf(2d);
    do {
        factors.add(BigDecimal.ONE.divide(divisor, precision + 2, RoundingMode.HALF_UP));
        temporary = temporary.add(BigDecimal.ONE);
        divisor = divisor.multiply(temporary);
        temporary = temporary.add(BigDecimal.ONE);
        divisor = divisor.multiply(temporary);
    } while (factors.get(factors.size() - 1).compareTo(new BigDecimal("1E-" + (precision + 2))) > 0);

    return factors;
}

From source file:net.sourceforge.entrainer.gui.socket.EntrainerSocketConnector.java

private void setAutoAmplitude(double value) {
    int val = new BigDecimal(value * 100).divide(BigDecimal.ONE, 0, RoundingMode.HALF_UP).intValue();
    if (amplitude.getValue() == value)
        return;//from   w w  w.  j a  v  a  2  s  .c  om
    isEntrainerAmplitudeMessage = true;
    amplitude.setValue(val);
}

From source file:org.finra.herd.dao.helper.EmrPricingHelper.java

/**
 * Finds all the clusters that are within the range of lowest core instance price.
 * <p>//  w w  w. ja va2  s  .  c  o m
 * For example, if the core prices are 0.30, 0.32, 0.34, 0.36, and the threshold value is 0.1(10%), then the lowest core price range should be [0.30, 0.33].
 * The upper bound is derived by calculating 0.30*(1 + 0.1) = 0.33
 *
 * @param emrClusterPrices the list of clusters to select from
 * @param lowestCoreInstancePriceThresholdPercentage the threshold value that defines the range of lowest core instance price
 *
 * @return the list of clusters that fall in lowest core instance price range
 */
List<EmrClusterPriceDto> getEmrClusterPricesWithinLowestCoreInstancePriceThreshold(
        final List<EmrClusterPriceDto> emrClusterPrices,
        final BigDecimal lowestCoreInstancePriceThresholdPercentage) {
    // Builds a tree map that has the core instance price as the key, and the list of pricing with the same core instance price as the value. The tree map
    // is automatically sorted, so it is easy to find the lowest core instance price range.
    TreeMap<BigDecimal, List<EmrClusterPriceDto>> emrClusterPriceMapKeyedByCoreInstancePrice = new TreeMap<>();
    for (final EmrClusterPriceDto emrClusterPriceDto : emrClusterPrices) {
        final BigDecimal coreInstancePrice = getEmrClusterCoreInstancePrice(emrClusterPriceDto);
        if (emrClusterPriceMapKeyedByCoreInstancePrice.containsKey(coreInstancePrice)) {
            emrClusterPriceMapKeyedByCoreInstancePrice.get(coreInstancePrice).add(emrClusterPriceDto);
        } else {
            List<EmrClusterPriceDto> emrClusterPriceList = new ArrayList<>();
            emrClusterPriceList.add(emrClusterPriceDto);
            emrClusterPriceMapKeyedByCoreInstancePrice.put(coreInstancePrice, emrClusterPriceList);
        }
    }

    // Log all the information in the tree map
    LOGGER.info("All available EMR clusters keyed by core instance price: availableEmrClusters={}",
            jsonHelper.objectToJson(emrClusterPriceMapKeyedByCoreInstancePrice));

    // Finds the list of pricing in the range of the lowest core instance price
    List<EmrClusterPriceDto> lowestCoreInstancePriceEmrClusters = new ArrayList<>();
    if (!emrClusterPriceMapKeyedByCoreInstancePrice.isEmpty()) {
        // calculate the lowest core instance price range
        final BigDecimal lowestCoreInstancePriceLowerBound = emrClusterPriceMapKeyedByCoreInstancePrice
                .firstEntry().getKey();
        final BigDecimal lowestCoreInstancePriceUpperBound = lowestCoreInstancePriceLowerBound
                .multiply(BigDecimal.ONE.add(lowestCoreInstancePriceThresholdPercentage));

        LOGGER.info("emrClusterLowestCoreInstancePriceRange={}", jsonHelper.objectToJson(
                Arrays.asList(lowestCoreInstancePriceLowerBound, lowestCoreInstancePriceUpperBound)));

        for (final Map.Entry<BigDecimal, List<EmrClusterPriceDto>> entry : emrClusterPriceMapKeyedByCoreInstancePrice
                .entrySet()) {
            final BigDecimal coreInstancePrice = entry.getKey();
            // Fall into the lowest price range? add it to the list.
            // There is no need to check the lower bound here, since the tree map is sorted, and lower bound is the lowest core price in the tree map.
            if (coreInstancePrice.compareTo(lowestCoreInstancePriceUpperBound) <= 0) {
                lowestCoreInstancePriceEmrClusters.addAll(entry.getValue());
            } else {
                // since the tree map is sorted in ascending order, we do not need to check the rest of entries in the map
                break;
            }
        }
    }
    return lowestCoreInstancePriceEmrClusters;
}

From source file:net.sourceforge.entrainer.gui.socket.EntrainerSocketConnector.java

private void setAutoPinkNoise(double value) {
    int val = new BigDecimal(value * 1000).divide(BigDecimal.ONE, 0, RoundingMode.HALF_UP).intValue();
    if (pinkNoise.getValue() == val)
        return;//from   ww w.j a  v  a 2  s . c o  m
    isEntrainerPinkNoiseAmplitudeMessage = true;
    pinkNoise.setValue(val);
}

From source file:org.jasig.ssp.service.impl.EvaluatedSuccessIndicatorServiceImpl.java

private BigDecimal normalizeForScaleEvaluation(@Nullable Object metric,
        @Nonnull SuccessIndicator successIndicator) throws NumberFormatException, IllegalArgumentException {
    if (metric == null) {
        return null;
    }/*from  w  w  w  .ja  v a2s  . co  m*/
    if (metric instanceof Boolean) {
        return ((Boolean) metric).booleanValue() ? BigDecimal.ONE : BigDecimal.ZERO;
    }
    if (metric instanceof BigDecimal) {
        return ((BigDecimal) metric);
    }
    if (metric instanceof Number) {
        return BigDecimal.valueOf(((Number) metric).doubleValue()).setScale(DECIMAL_SCALE);
    }
    if (metric instanceof String) {
        return new BigDecimal((String) metric).setScale(DECIMAL_SCALE);
    }
    if (metric instanceof Ratio) {
        return ((Ratio) metric).ratio();
    }
    throw new NumberFormatException("Cannot interpret evaluation input value [" + metric + "] of type ["
            + metric.getClass().getName() + "] as a BigDecimal");
}

From source file:org.eclipse.jubula.client.archive.XmlExporter.java

/**
 * @param xmlChkConf//from   w ww  .j  av a2  s. c  om
 *            The xml configuration where the attributes should be saved.
 * @param contexts
 *            The map where the context activation will be saved.
 */
private void fillCheckContext(CheckConfiguration xmlChkConf, Map<String, Boolean> contexts) {
    for (Entry<String, Boolean> e : contexts.entrySet()) {
        checkForCancel();
        CheckActivatedContext c = xmlChkConf.addNewActiveContext();
        c.setClass1(e.getKey());
        Object obj = e.getValue();
        if (obj instanceof BigDecimal) {
            BigDecimal bd = (BigDecimal) obj;
            c.setActive(bd.equals(BigDecimal.ONE) ? true : false);
        } else {
            c.setActive(e.getValue());
        }
    }
}

From source file:module.siadap.domain.wrappers.SiadapUniverseWrapper.java

/**
 * @param totalPeople//  ww  w .j  a va  2 s  .  c  om
 *            the number of people to calculate the quota on
 * @param quota
 *            the percentage points of quota
 * @return how many people it represents, it is never 0 due to SIADAPs rules
 */
private BigDecimal calculateQuota(int totalPeople, Integer quota) {
    BigDecimal result = new BigDecimal(totalPeople).multiply(new BigDecimal(quota)).divide(new BigDecimal(100));

    int value = result.intValue();
    return value > 0 ? result : BigDecimal.ONE; //if the quota is 0 the the quota shifts to 1

}

From source file:net.sourceforge.entrainer.gui.socket.EntrainerSocketConnector.java

private void setAutoFrequency(double value) {
    int val = new BigDecimal(value).divide(BigDecimal.ONE, 0, RoundingMode.HALF_UP).intValue();
    if (frequency.getValue() == val)
        return;/*from w ww  . j a va 2s.c o  m*/
    isEntrainerFrequencyMessage = true;
    frequency.setValue(val);
}

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);
}

From source file:org.estatio.dom.invoice.Invoice.java

public BigDecimal default1NewItem() {
    return BigDecimal.ONE;
}