Example usage for org.apache.commons.lang Validate notNull

Introduction

In this page you can find the example usage for org.apache.commons.lang Validate notNull.

Prototype

public static void notNull(Object object, String message)

Source Link

Document

Validate an argument, throwing IllegalArgumentException if the argument is null.

 Validate.notNull(myObject, "The object must not be null");

Usage

From source file:com.opengamma.analytics.math.statistics.estimation.LaplaceDistributionMaximumLikelihoodEstimator.java

@Override
public ProbabilityDistribution<Double> evaluate(final double[] x) {
    Validate.notNull(x, "x");
    ArgumentChecker.notEmpty(x, "x");
    final double median = _median.evaluate(x);
    final int n = x.length;
    double b = 0;
    for (int i = 0; i < n; i++) {
        b += Math.abs(x[i] - median);
    }/* w ww.j  a  v a 2 s .  c o m*/
    return new LaplaceDistribution(median, b / n);
}

From source file:com.opengamma.analytics.math.interpolation.QuadraticSplineInterpolator1D.java

@Override
public Double interpolate(final Interpolator1DDataBundle data, final Double value) {
    Validate.notNull(value, "value");
    Validate.notNull(data, "data bundle");
    Validate.isTrue(data instanceof Interpolator1DQuadraticSplineDataBundle);
    final Interpolator1DQuadraticSplineDataBundle quadraticData = (Interpolator1DQuadraticSplineDataBundle) data;

    final int n = data.size() - 1;
    final double[] xData = data.getKeys();
    final double[] yData = data.getValues();

    double h, dx, a, b;
    if (value < data.firstKey()) {
        h = 0;//  w  w w .ja  v  a2 s . com
        dx = value;
        a = quadraticData.getA(0);
        b = quadraticData.getB(0);
    } else if (value > data.lastKey()) {
        h = yData[n];
        dx = value - xData[n];
        a = quadraticData.getA(n + 1);
        b = quadraticData.getB(n + 1);
    } else {
        final int low = data.getLowerBoundIndex(value);
        h = yData[low];
        dx = value - xData[low];
        a = quadraticData.getA(low + 1);
        b = quadraticData.getB(low + 1);
    }
    return h + a * a * dx + a * b * dx * dx + b * b / 3 * dx * dx * dx;

}

From source file:com.opengamma.analytics.financial.timeseries.analysis.AutocovarianceFunctionCalculator.java

@Override
public double[] evaluate(final DoubleTimeSeries<?> x) {
    Validate.notNull(x, "x");
    if (x.isEmpty()) {
        throw new IllegalArgumentException("Time series was empty");
    }//w  ww .j  a v a2s . c o m
    final int h = x.size() - 1;
    final double[] result = new double[h];
    final double mean = _meanCalculator.evaluate(x);
    double[] x1, x2;
    final int n = x.size();
    double sum;
    final double[] x0 = x.valuesArrayFast();
    for (int i = 0; i < h; i++) {
        x1 = Arrays.copyOfRange(x0, 0, n - i);
        x2 = Arrays.copyOfRange(x0, i, n);
        if (x1.length != x2.length) {
            throw new IllegalArgumentException("Series were not the same length; this should not happen");
        }
        sum = 0;
        for (int j = 0; j < x1.length; j++) {
            sum += (x1[j] - mean) * (x2[j] - mean);
        }
        result[i] = sum / n;
    }
    return result;
}

From source file:com.opengamma.analytics.financial.riskfactor.TaylorExpansionMultiplierCalculator.java

public static double getValue(final Map<UnderlyingType, Double> underlyingData, final Underlying underlying) {
    Validate.notNull(underlying, "underlying");
    Validate.notNull(underlyingData, "underlying data");
    Validate.notEmpty(underlyingData, "underlying data");
    Validate.noNullElements(underlyingData.keySet(), "underlying data keys");
    Validate.noNullElements(underlyingData.values(), "underlying data values");
    if (underlying instanceof NthOrderUnderlying) {
        final NthOrderUnderlying nthOrder = (NthOrderUnderlying) underlying;
        final int n = nthOrder.getOrder();
        if (n == 0) {
            return 1;
        }/*  w w  w  .  j  a  v a  2  s .  c o m*/
        final UnderlyingType type = nthOrder.getUnderlying();
        Validate.isTrue(underlyingData.containsKey(type));
        final double value = Math.pow(underlyingData.get(type), n);
        return value * getMultiplier(underlying);
    } else if (underlying instanceof MixedOrderUnderlying) {
        final MixedOrderUnderlying mixedOrder = (MixedOrderUnderlying) underlying;
        Double result = null;
        double multiplier;
        for (final NthOrderUnderlying underlyingOrder : mixedOrder.getUnderlyingOrders()) {
            if (result == null) {
                result = getValue(underlyingData, underlyingOrder);
            } else {
                multiplier = getValue(underlyingData, underlyingOrder);
                result = result * multiplier;
            }
        }
        if (result != null) {
            return result;
        }
    }
    throw new IllegalArgumentException(
            "Order was neither NthOrderUnderlying nor MixedOrderUnderlying: have " + underlying.getClass());
}

From source file:com.opengamma.analytics.financial.schedule.EndOfMonthScheduleCalculator.java

public LocalDate[] getSchedule(final LocalDate startDate, final LocalDate endDate) {
    Validate.notNull(startDate, "start date");
    Validate.notNull(endDate, "end date");
    Validate.isTrue(startDate.isBefore(endDate) || startDate.equals(endDate));
    if (startDate.equals(endDate)) {
        if (startDate.getDayOfMonth() == startDate.getMonthOfYear()
                .lengthInDays(startDate.toLocalDate().isLeapYear())) {
            return new LocalDate[] { startDate };
        }//from w  w w .j ava 2  s. co m
        throw new IllegalArgumentException(
                "Start date and end date were the same but neither was the last day of the month");
    }
    final List<LocalDate> dates = new ArrayList<LocalDate>();
    LocalDate date = startDate.with(DateAdjusters.lastDayOfMonth());
    while (!date.isAfter(endDate)) {
        dates.add(date);
        date = date.plus(Period.ofMonths(1)).with(DateAdjusters.lastDayOfMonth());
    }
    return dates.toArray(EMPTY_LOCAL_DATE_ARRAY);
}

From source file:com.opengamma.analytics.financial.schedule.EndOfYearScheduleCalculator.java

public LocalDate[] getSchedule(final LocalDate startDate, final LocalDate endDate) {
    Validate.notNull(startDate, "start date");
    Validate.notNull(endDate, "end date");
    Validate.isTrue(startDate.isBefore(endDate) || startDate.equals(endDate));
    if (startDate.equals(endDate)) {
        if (startDate.getDayOfMonth() == 31 && startDate.getMonthOfYear() == MonthOfYear.DECEMBER) {
            return new LocalDate[] { startDate };
        }/*w ww.  ja  v a 2 s. c o m*/
        throw new IllegalArgumentException(
                "Start date and end date were the same but neither was the last day of the year");
    }
    final List<LocalDate> dates = new ArrayList<LocalDate>();
    LocalDate date = startDate.with(DateAdjusters.lastDayOfYear());
    while (!date.isAfter(endDate)) {
        dates.add(date);
        date = date.plusYears(1).with(DateAdjusters.lastDayOfYear());
    }
    return dates.toArray(EMPTY_LOCAL_DATE_ARRAY);
}

From source file:com.opengamma.financial.convention.calendar.CalendarBase.java

/**
 * Creates an instance.//from  w  ww  .j a v a2  s  .co m
 * @param name  the convention name, not null
 */
protected CalendarBase(final String name) {
    Validate.notNull(name, "name");
    _name = name;
}

From source file:com.opengamma.analytics.math.interpolation.StepInterpolator1D.java

@Override
public double firstDerivative(final Interpolator1DDataBundle data, final Double x) {
    Validate.notNull(x, "value");
    Validate.notNull(data, "data bundle");
    return 0.;/* w w w . jav  a  2  s  .co m*/
}

From source file:com.opengamma.analytics.financial.schedule.FirstOfYearScheduleCalculator.java

public LocalDate[] getSchedule(final LocalDate startDate, final LocalDate endDate) {
    Validate.notNull(startDate, "start date");
    Validate.notNull(endDate, "end date");
    Validate.isTrue(startDate.isBefore(endDate) || startDate.equals(endDate));
    if (startDate.equals(endDate)) {
        if (startDate.getDayOfMonth() == 1 && startDate.getMonthOfYear() == MonthOfYear.JANUARY) {
            return new LocalDate[] { startDate };
        }/*from w ww.  j  a v a  2  s. c  o  m*/
        throw new IllegalArgumentException(
                "Start date and end date were the same but neither was the first day of the year");
    }
    final List<LocalDate> dates = new ArrayList<LocalDate>();
    LocalDate date = startDate.with(DateAdjusters.firstDayOfYear());
    if (date.isBefore(startDate)) {
        date = date.plusYears(1);
    }
    while (!date.isAfter(endDate)) {
        dates.add(date);
        date = date.plusYears(1);
    }
    return dates.toArray(EMPTY_LOCAL_DATE_ARRAY);
}

From source file:com.opengamma.analytics.util.surface.StringValue.java

/**
 * Builder from a map. A new map is created with the same values.
 * @param map The map./*from w ww.  j  a  v a2 s . c o m*/
 * @return The surface value.
 */
public static StringValue from(final Map<String, Double> map) {
    Validate.notNull(map, "Map");
    HashMap<String, Double> data = new HashMap<String, Double>();
    data.putAll(map);
    return new StringValue(data);
}