Example usage for java.lang Double doubleValue

Introduction

In this page you can find the example usage for java.lang Double doubleValue.

Prototype

@HotSpotIntrinsicCandidate
public double doubleValue() 

Source Link

Document

Returns the double value of this Double object.

Usage

From source file:eu.optimis.ecoefficiencytool.core.tools.CO2Converter.java

/**
 * Returns the amount of CO2 gr. emmited to the atmosphere in order to
 * produce the amount of power specified by power. This function takes into
 * account the nature of the energy being consumed by the datacenter
 * facilities (i.e. brown/green, having a 0 CO2 footpring for green energy)
 * and, among the brown energy, its origin (coal, gas, fuel, etc.). It also
 * takes into account the presence of energy credits acquired by the
 * Infrastructure Provider.//from w  ww . j  a v a  2 s.  c o m
 *
 * @param power Amount of power expressed in Watts.
 * @return
 */
public static double getCO2FromPower(double power) {

    //A tiny amount of CO2 is returned (to avoid having Infinity ecological efficiency values)
    if (EnergyCreditsManager.isDatacenterRunningOnGreen()) {
        return 0.000001;
    }

    PropertiesConfiguration configEnergy = ConfigManager
            .getPropertiesConfiguration(ConfigManager.ENERGY_SOURCES_CONFIG_FILE);

    //Calculate which part of the consumed power is brown (green has no emissions).
    double brownPower = power * configEnergy.getDouble("brown.percentage") / 100.0;

    //Calculate the amount of gr of CO2 emitted to produce this brown energy.
    double totalGrS = 0.0, totalPercentage = 0.0;
    Iterator it = configEnergy.getKeys("emissions");
    while (it.hasNext()) {
        String key = (String) it.next();
        String energySource = key.split("\\.")[1];

        double emissions = ((double) configEnergy.getInt(key)) / 3600000.0; //From gr/(kW*h) to gr/(W*s)
        Double percentage = configEnergy.getDouble("percentage." + energySource);
        if (percentage == null) {
            log.warn("Percentage associated to " + energySource + " was not found.");
            continue;
        }
        totalPercentage += percentage;
        totalGrS += percentage.doubleValue() * brownPower * emissions;
    }
    if (totalPercentage != 100.0) {
        log.warn("Total percentage wasn't 100.0. Check the energysources.properties configuration file.");
    }
    log.debug("Emitted " + totalGrS + " gr/s of CO2 to deliver " + power + "W of power (" + brownPower
            + "W brown).");

    return totalGrS;
}

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From source file:com.github.gdfm.shobaidogu.StatsUtils.java

/**
 * Computes the Jensen-Shannon divergence between two distributions. The distributions are represented by maps with
 * double values./*w w  w.  j a  v  a2 s . c  om*/
 * 
 * @param p
 *          the first distribution.
 * @param q
 *          the second distribution.
 * @return the JS divergence.
 */
public static <K, V extends Number> double JSdivergence(Map<K, V> p, Map<K, V> q) {
    checkNotNull(p);
    checkNotNull(q);
    Map<K, Double> m = Maps.newHashMap();
    // compute m = (p + q) / 2
    for (Entry<K, V> pi : p.entrySet()) {
        m.put(pi.getKey(), pi.getValue().doubleValue() / 2);
    }
    for (Entry<K, V> qi : q.entrySet()) {
        Double mi = m.get(qi.getKey());
        if (mi == null)
            mi = 0.0;
        m.put(qi.getKey(), qi.getValue().doubleValue() / 2 + mi.doubleValue());
    }
    double jsd = (KLdivergence(p, m) + KLdivergence(q, m)) / 2;
    return jsd;
}

---

From source file:de.mpg.mpi_inf.bioinf.netanalyzer.ui.charts.MyLogarithmicAxis.java

/**
 * Gives the <code>String</code> representation of the given number.
 * //from w w  w .  ja  v a 2 s .co m
 * @param aValue Number to be converted to <code>String</code>.
 * @param aScientific Flag indicating if scientific notation is preferred.
 * @return String representation of <code>aValue</code>.
 */
private static String toString(Double aValue, boolean aScientific) {
    return toString(aValue.doubleValue(), aScientific);
}

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From source file:net.sourceforge.fenixedu.util.InquiriesUtil.java

public static String getTdClass(final Double val, final String[] classes, final String defaultClass,
        final double[] values) {
    if (val == null) {
        return defaultClass;
    }/* w ww.  j a v  a 2  s . c o  m*/

    if (classes.length == (values.length - 1)) {
        final double v = val.doubleValue();
        for (int i = 0; i < classes.length; i++) {
            if ((v >= values[i]) && (v < values[i + 1])) {
                return classes[i];
            }
        }
    }

    return defaultClass;
}

---

From source file:org.kalypso.model.wspm.ewawi.utils.GewShape.java

public static GewShapeRow findRow(final Geometry geometry, final List<GewShapeRow> rows,
        final XyzEwawiLogger logger, final String category) {
    final SHP2JTS shp2jts = new SHP2JTS(geometry.getFactory());

    /* Collect the distances, so if none intersects, we can use them to return the nearest. */
    final SortedMap<Double, GewShapeRow> distances = new TreeMap<>();

    /* Check, if intersecting. */
    for (final GewShapeRow row : rows) {
        final ISHPGeometry shape = row.getShape();

        final Geometry value = shp2jts.transform(shape);
        if (value == null)
            continue;

        if (value.intersects(geometry)) {
            System.out.println("Geometrie schneidet einen Gewsserabschnitt, dieser wird verwendet.");
            return row;
        }// w ww .j a  va2s .c  o  m

        final double distance = value.distance(geometry);
        distances.put(new Double(distance), row);
    }

    if (distances.size() == 0) {
        final String message = "Keine Gewsserabschnitte verfgbar.";
        System.out.println(message);

        if (logger != null) {
            final Point centroid = geometry.getCentroid();
            logger.logXyzLine(centroid.getX(), centroid.getY(), -9999.0, message, category, -9999.0);
        }

        return null;
    }

    final Entry<Double, GewShapeRow> entry = distances.entrySet().iterator().next();
    final Double key = entry.getKey();
    final GewShapeRow value = entry.getValue();

    final String message = String.format(
            "Geometrie schneidet keinen Gewsserabschnitt, nhester wird verwendet. Distanz: %f",
            key.doubleValue());
    System.out.println(message);

    if (logger != null) {
        final Point centroid = geometry.getCentroid();
        logger.logXyzLine(centroid.getX(), centroid.getY(), -9999.0, message, category, key.doubleValue());
    }

    return value;
}

---

From source file:Main.java

/**
 * <p>Converts an array of object Doubles to primitives handling {@code null}.</p>
 *
 * <p>This method returns {@code null} for a {@code null} input array.</p>
 *
 * @param array  a {@code Double} array, may be {@code null}
 * @param valueForNull  the value to insert if {@code null} found
 * @return a {@code double} array, {@code null} if null array input
 *///  w  w w  . j a  v a2  s. c o  m
public static double[] toPrimitive(Double[] array, double valueForNull) {
    if (array == null) {
        return null;
    } else if (array.length == 0) {
        return EMPTY_DOUBLE_ARRAY;
    }
    final double[] result = new double[array.length];
    for (int i = 0; i < array.length; i++) {
        Double b = array[i];
        result[i] = (b == null ? valueForNull : b.doubleValue());
    }
    return result;
}

---

From source file:com.jdom.junit.utils.AbstractFixture.java

/**
 * Get a randomized value./*w w w  .j av a  2  s .  c  o  m*/
 * 
 * @param value
 *            the value to randomize
 * @param salt
 *            the randomizer to use
 * @return the randomized value
 */
public static Double getSaltedValue(Double value, int salt) {
    Double retValue;

    if (salt == 0) {
        retValue = value;
    } else {
        retValue = new Double(value.doubleValue() * salt * salt / 2 + DOUBLE_FACTOR);
    }

    return retValue;
}

---

From source file:Main.java

/**
 * <p>Converts an array of object Doubles to primitives handling {@code null}.</p>
 *
 * <p>This method returns {@code null} for a {@code null} input array.</p>
 *
 * @param array  a {@code Double} array, may be {@code null}
 * @param valueForNull  the value to insert if {@code null} found
 * @return a {@code double} array, {@code null} if null array input
 */// w w  w  .j  a  v a 2  s .  c o m
public static double[] toPrimitive(final Double[] array, final double valueForNull) {
    if (array == null) {
        return null;
    } else if (array.length == 0) {
        return EMPTY_DOUBLE_ARRAY;
    }
    final double[] result = new double[array.length];
    for (int i = 0; i < array.length; i++) {
        final Double b = array[i];
        result[i] = (b == null ? valueForNull : b.doubleValue());
    }
    return result;
}

---

From source file:edu.isi.misd.scanner.network.modules.worker.processors.oceans.OceansLogisticRegressionProcessor.java

/**
 * Formats a double to a fixed (currently three) number of decimal places.
 *///from  w ww. j  av a 2 s . c o  m
public static double df(double a) {
    DecimalFormat f = new DecimalFormat(".000");
    Double input = Double.valueOf(a);
    // check for special values so that they are not parsed
    if (input.equals(Double.NEGATIVE_INFINITY) || input.equals(Double.POSITIVE_INFINITY)
            || input.equals(Double.NaN)) {
        return input.doubleValue();
    }
    return Double.parseDouble(f.format(input));
}

---

From source file:com.kingcore.framework.util.ConvertUtils.java

/**
 * ?//from  w  w  w.j av  a 2 s  . c  om
 * Create on 2003-6-18
 * @param Double 
 * @param int ??? 
 * @return
 */
public static String formatNumber(Double d, int scalar) throws Exception {
    double temp = d.doubleValue();
    return formatNumber(temp, scalar);
}

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