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

Introduction

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

Prototype

public static void isTrue(boolean expression, String message) 

Source Link

Document

Validate an argument, throwing IllegalArgumentException if the test result is false.

This is used when validating according to an arbitrary boolean expression, such as validating a primitive number or using your own custom validation expression.

 Validate.isTrue( (i > 0), "The value must be greater than zero"); Validate.isTrue( myObject.isOk(), "The object is not OK"); 

For performance reasons, the message string should not involve a string append, instead use the #isTrue(boolean,String,Object) method.

Usage

From source file:com.opengamma.analytics.financial.model.volatility.NormalImpliedVolatilityFormula.java

/**
 * Computes the implied volatility from the price in a normally distributed asset price world.
 * @param data The model data. The data volatility, if not zero, is used as a starting point for the volatility search.
 * @param option The option./*from  w w  w. j av  a  2  s .co  m*/
 * @param optionPrice The option price.
 * @return The implied volatility.
 */
public double getImpliedVolatility(final NormalFunctionData data, final EuropeanVanillaOption option,
        final double optionPrice) {
    final double numeraire = data.getNumeraire();
    final boolean isCall = option.isCall();
    final double f = data.getForward();
    final double k = option.getStrike();
    final double intrinsicPrice = numeraire * Math.max(0, (isCall ? 1 : -1) * (f - k));
    Validate.isTrue(optionPrice > intrinsicPrice || CompareUtils.closeEquals(optionPrice, intrinsicPrice, 1e-6),
            "option price (" + optionPrice + ") less than intrinsic value (" + intrinsicPrice + ")");
    if (Double.doubleToLongBits(optionPrice) == Double.doubleToLongBits(intrinsicPrice)) {
        return 0.0;
    }
    double sigma = (Math.abs(data.getNormalVolatility()) < 1E-10 ? 0.3 * f : data.getNormalVolatility());
    NormalFunctionData newData = new NormalFunctionData(f, numeraire, sigma);
    final double maxChange = 0.5 * f;
    double[] priceDerivative = new double[3];
    double price = NORMAL_PRICE_FUNCTION.getPriceAdjoint(option, newData, priceDerivative);
    double vega = priceDerivative[1];
    double change = (price - optionPrice) / vega;
    double sign = Math.signum(change);
    change = sign * Math.min(maxChange, Math.abs(change));
    if (change > 0 && change > sigma) {
        change = sigma;
    }
    int count = 0;
    while (Math.abs(change) > EPS) {
        sigma -= change;
        newData = new NormalFunctionData(f, numeraire, sigma);
        price = NORMAL_PRICE_FUNCTION.getPriceAdjoint(option, newData, priceDerivative);
        vega = priceDerivative[1];
        change = (price - optionPrice) / vega;
        sign = Math.signum(change);
        change = sign * Math.min(maxChange, Math.abs(change));
        if (change > 0 && change > sigma) {
            change = sigma;
        }
        if (count++ > MAX_ITERATIONS) {
            final BracketRoot bracketer = new BracketRoot();
            final BisectionSingleRootFinder rootFinder = new BisectionSingleRootFinder(EPS);
            final Function1D<Double, Double> func = new Function1D<Double, Double>() {
                @SuppressWarnings({ "synthetic-access" })
                @Override
                public Double evaluate(final Double volatility) {
                    final NormalFunctionData myData = new NormalFunctionData(data.getForward(),
                            data.getNumeraire(), volatility);
                    return NORMAL_PRICE_FUNCTION.getPriceFunction(option).evaluate(myData) - optionPrice;
                }
            };
            final double[] range = bracketer.getBracketedPoints(func, 0.0, 10.0);
            return rootFinder.getRoot(func, range[0], range[1]);
        }
    }
    return sigma;
}

---

From source file:de.xaniox.heavyspleef.core.event.EventListenerMethod.java

public void invoke(Event event) {
    Validate.isTrue(eventClass.isAssignableFrom(event.getClass()),
            "event must be either " + eventClass.getName() + " or a subtype");

    try {//from w  w w. j  a  va2s.com
        method.invoke(instance, event);
    } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
        throw new RuntimeException(e);
    }
}

---

From source file:fr.ritaly.dungeonmaster.Utils.java

/**
 * Tells whether the given value is inside the specified range [min, max].
 *
 * @param value/*from   w ww.jav  a 2  s  .  c  o  m*/
 *            an integer representing the value to test.
 * @param min
 *            the range's lower bound.
 * @param max
 *            the range's upper bound.
 * @return whether the given value is inside the specified range.
 */
public static boolean inside(int value, int min, int max) {
    Validate.isTrue(min < max,
            String.format("The given min %d must be lesser than the given max %d", min, max));

    return ((min <= value) && (value <= max));
}

---

From source file:com.opengamma.analytics.financial.instrument.cds.ISDACDSCouponDefinition.java

@Override
public ISDACDSCoupon toDerivative(final ZonedDateTime date, final String... yieldCurveNames) {

    Validate.notNull(date, "date");
    Validate.notNull(yieldCurveNames, "yield curve names");
    Validate.isTrue(yieldCurveNames.length > 0, "at least one curve required");
    Validate.isTrue(!date.isAfter(getPaymentDate()), "date is after payment date"); // Required: reference date <= payment date

    final String fundingCurveName = yieldCurveNames[0];

    return new ISDACDSCoupon(getCurrency(), getTimeBetween(date, getPaymentDate()), fundingCurveName,
            getPaymentYearFraction(), getNotional(), getRate(), getAccrualStartDate(), getAccrualEndDate(),
            getTimeBetween(date, getAccrualStartDate()), getTimeBetween(date, getAccrualEndDate()));
}

---

From source file:net.jadler.mocking.Verifying.java

/**
 * Checks the number of requests described in this verifying object.
 * @param count expected number of requests described in this verifying object.
 * @throws VerificationException if the number of requests described in this verifying object doesn't equal to
 * the given parameter/*from ww w  . j  a  v a  2 s. c  om*/
 */
public void receivedTimes(final int count) {
    Validate.isTrue(count >= 0, "count cannot be negative");
    this.receivedTimes(equalTo(count));
}

---

From source file:com.opengamma.analytics.financial.model.volatility.surface.SurfaceConverter.java

Surface<Double, Double, Double> deltaToLogMoneyness(final Surface<Double, Double, Double> deltaSurf) {
    final Function<Double, Double> surFunc = new Function<Double, Double>() {
        @SuppressWarnings("synthetic-access")
        @Override/*from  w ww  . j  a v a 2 s. c om*/
        public Double evaluate(final Double... tx) {
            final double t = tx[0];
            final double x = tx[1];
            Validate.isTrue(t >= 0, "Must have t >= 0.0");

            //find the delta that gives the required log-moneyness (x) at time t
            final double delta = getDeltaForLogMoneyness(x, deltaSurf, t);
            return deltaSurf.getZValue(t, delta);
        }
    };
    return FunctionalDoublesSurface.from(surFunc);
}

---

From source file:net.daboross.bukkitdev.skywars.api.arenaconfig.SkyArenaChestConfig.java

public static SkyArenaChestConfig deserialize(ConfigurationSection configurationSection) {
    Validate.isTrue(configurationSection.isBoolean("randomize"), "chest missing valid randomize");
    Validate.isTrue(configurationSection.isInt("total-level"), "chest missing valid total-level");
    Validate.isTrue(configurationSection.isInt("min-item-value"), "chest missing valid min-item-value");
    Validate.isTrue(configurationSection.isInt("max-item-value"), "chest missing valid max-item-value");
    Validate.isTrue(configurationSection.isConfigurationSection("location"), "chest missing valid location");

    int level = configurationSection.getInt("total-level");
    int minItemValue = configurationSection.getInt("min-item-value");
    int maxItemValue = configurationSection.getInt("max-item-value");
    boolean randomize = configurationSection.getBoolean("randomize");
    SkyBlockLocation location = SkyBlockLocation
            .deserialize(configurationSection.getConfigurationSection("location"));

    return new SkyArenaChestConfig(randomize, level, minItemValue, maxItemValue, location);
}

---

From source file:com.prowidesoftware.swift.model.SwiftBlock3.java

/**
 * Sets the block number. Will cause an exception unless setting block number to 3.
 * @param blockNumber the block number to set
 * @throws IllegalArgumentException if parameter blockName is not the integer 3
 * @since 5.0//from w w w.j  a v a  2 s .  c  o m
 */
protected void setBlockNumber(final Integer blockNumber) {
    // sanity check
    Validate.notNull(blockNumber, "parameter 'blockNumber' cannot be null");
    Validate.isTrue(blockNumber.intValue() == 3, "blockNumber must be 3");
}

---

From source file:net.daboross.bukkitdev.skywars.api.kits.impl.SkyKitConfig.java

public SkyKitConfig(List<SkyKitItem> inventoryContents, List<SkyKitItem> armorContents, String name,
        final String description, final Material totem, int cost, String permissionNode) {
    Validate.notNull(inventoryContents, "Inventory cannot be null");
    Validate.notNull(armorContents, "Armor contents cannot be null");
    Validate.notNull(name, "Name cannot be null");
    Validate.notNull(description, "Description cannot be null");
    Validate.notNull(totem, "Totem cannot be null");
    Validate.isTrue(armorContents.size() == 4, "Armor contents size must be 4");
    Validate.isTrue(cost >= 0);/*  www  . j  a  v a  2 s.co m*/
    this.inventoryContents = inventoryContents;
    this.armorContents = armorContents;
    this.name = name;
    this.description = description.replace(ChatColor.COLOR_CHAR, '&');
    this.displayDescription = Arrays
            .asList(ChatColor.translateAlternateColorCodes('&', description).split("\n"));
    this.totem = totem;
    this.cost = cost;
    this.permission = permissionNode;
}

---

From source file:com.opengamma.analytics.financial.interestrate.swaption.derivative.SwaptionBermudaFixedIbor.java

/**
 * Constructor for the Bermuda swaption.
 * @param underlyingSwap The swaps underlying the swaption. There is one swap for each expiration date.
 * @param isLong Flag indicating if the option is long (true) or short (false).
 * @param expiryTime The swaption expiration times.
 * @param settlementTime The times (in year) to the swaps settlement.
 *///from  w w w  .j  a  v a 2  s.  com
public SwaptionBermudaFixedIbor(SwapFixedCoupon<? extends Coupon>[] underlyingSwap, boolean isLong,
        double[] expiryTime, double[] settlementTime) {
    Validate.notNull(expiryTime, "Expiry time");
    Validate.notNull(underlyingSwap, "Underlying swap");
    Validate.notNull(settlementTime, "Settlement time");
    Validate.isTrue(underlyingSwap.length == expiryTime.length,
            "Number of swaps not in line with number of expiry times");
    Validate.isTrue(underlyingSwap.length == settlementTime.length,
            "Number of swaps not in line with number of settlement times");
    this._underlyingSwap = underlyingSwap;
    this._isLong = isLong;
    this._expiryTime = expiryTime;
    this._settlementTime = settlementTime;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• »