List of usage examples for org.apache.commons.lang Validate isTrue
public static void isTrue(boolean expression, String message)
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.
From source file:com.codelanx.codelanxlib.listener.ListenerManager.java
/** * Gets a listener by its string name. Returns null if the listener is * disabled or not registered./* w w w .j a v a2 s. com*/ * * @since 0.0.1 * @version 0.1.0 * * @param <S> The {@link SubListener} type * @param listener An instance of the class type to retrieve * @return The listener class, null if disabled or not registered * @throws IllegalArgumentException If the listener isn't registered */ public static <S extends SubListener<? extends Plugin>> S getListener(Class<S> listener) { Validate.isTrue(ListenerManager.isRegistered(listener), "Class is not registered with listener manager"); return (S) ListenerManager.listeners.get(listener); }
From source file:net.andylizi.laserlib.LaserManagerImpl.java
@Override public Laser createLaser(Location source, Entity target, boolean elder) throws RuntimeException { Objects.requireNonNull(source, "source cannot be null"); Objects.requireNonNull(target, "target cannot be null"); Validate.isTrue(source.getWorld().getUID().equals(target.getWorld().getUID()), "source and target must in the same world"); Location guardianPos = source.clone().add(0, -GUARDIAN_EYE_HEIGHT, 0); try {/*from www . jav a 2 s.c o m*/ DummyEntity guardian = NMSUtil.createDummyGuardian(guardianPos, elder, target.getEntityId()); NMSUtil.dummyGuardians.add(new DummyGuardianRecord(target.getEntityId(), guardian, null)); return new RealLaser(source, guardian, target); } catch (ReflectiveOperationException ex) { throw new RuntimeException(ex); } }
From source file:com.opengamma.analytics.financial.model.volatility.smile.fitting.SABRATMVolatilityCalculator.java
/** * Finds the alpha that gives the required ATM volatility * @param data SABR parameters - the alpha value is ignored * @param option The option/* ww w . java 2 s . co m*/ * @param forward the forward * @param atmVol The ATM volatility * @return the value of alpha */ public double calculate(final SABRFormulaData data, final EuropeanVanillaOption option, final double forward, final double atmVol) { Validate.notNull(data, "data"); Validate.notNull(option, "option"); Validate.isTrue(atmVol > 0, "ATM vol must be > 0"); final Function1D<Double, Double> f = new Function1D<Double, Double>() { @SuppressWarnings("synthetic-access") @Override public Double evaluate(final Double alpha) { final SABRFormulaData newData = new SABRFormulaData(alpha, data.getBeta(), data.getRho(), data.getNu()); return _sabrFormula.getVolatilityFunction(option, forward).evaluate(newData) - atmVol; } }; final double alphaTry = atmVol * Math.pow(forward, 1 - data.getBeta()); final double[] range = _bracketer.getBracketedPoints(f, alphaTry / 2.0, 2 * alphaTry); return _rootFinder.getRoot(f, range[0], range[1]); }
From source file:net.daboross.bukkitdev.skywars.world.WorldCopier.java
public void destroyArena(SkyBlockLocation arenaMin, SkyBlockLocationRange area) { Validate.notNull(arenaMin, "ArenaMin cannot be null"); Validate.notNull(area, "Area cannot be null"); World world = Bukkit.getWorld(arenaMin.world); Validate.isTrue(world != null, "World not found"); SkyBlockLocation clearingMin = new SkyBlockLocation(arenaMin.x + area.min.x, arenaMin.y + area.min.y, arenaMin.z + area.min.z, null); SkyBlockLocation clearingMax = new SkyBlockLocation(arenaMin.x + area.max.x, arenaMin.y + area.max.y, arenaMin.z + area.max.z, null); destroyArena(clearingMin, clearingMax, world); }
From source file:com.opengamma.analytics.financial.instrument.swap.SwapIborONDefinition.java
/** * Constructor of the fixed-OIS swap from its two legs. * @param iborLeg The Ibor leg.//from w w w .ja va 2s . com * @param oisLeg The OIS leg. */ public SwapIborONDefinition(final AnnuityCouponIborSpreadDefinition iborLeg, final AnnuityCouponOISDefinition oisLeg) { super(iborLeg, oisLeg); Validate.isTrue(iborLeg.getCurrency() == oisLeg.getCurrency(), "Legs should have the same currency"); }
From source file:com.opengamma.analytics.financial.model.finitedifference.applications.TwoStateMarkovChainDataBundle.java
/** * /*w w w .jav a2s. co m*/ * @param vol1 Volatility of state 1 * @param vol2 Volatility of state 1 * @param lambda12 Transition rate from state 1 to 2 * @param lambda21 Transition rate from state 2 to 1 * @param probS1 Probability of starting in state 1 * @param beta1 CEV parameter in state 1 * @param beta2 CEV parameter in state 2 */ public TwoStateMarkovChainDataBundle(final double vol1, final double vol2, final double lambda12, final double lambda21, final double probS1, final double beta1, final double beta2) { Validate.isTrue(vol1 >= 0.0, "vol1 < 0"); Validate.isTrue(vol2 >= vol1, "vol2 < vol1"); Validate.isTrue(lambda12 >= 0.0, "lambda12 < 0"); Validate.isTrue(lambda21 >= 0.0, "lambda21 < 0"); Validate.isTrue(probS1 >= 0.0 && probS1 <= 1.0, "Need 0 <= probS1 <= 1.0"); Validate.isTrue(beta1 >= 0.0 && beta1 <= 2.0, "Need 0 <= beta1 <= 2.0"); Validate.isTrue(beta2 >= 0.0 && beta2 <= 2.0, "Need 0 <= beta2 <= 2.0"); _vol1 = vol1; _vol2 = vol2; _beta1 = beta1; _beta2 = beta2; _lambda12 = lambda12; _lambda21 = lambda21; _p0 = probS1; double sum = lambda12 + lambda21; if (sum == 0) { _pi1 = probS1; } else { _pi1 = lambda21 / sum; } }
From source file:fr.ritaly.dungeonmaster.Temporizer.java
public Temporizer(String label, int max) { Validate.isTrue(!StringUtils.isEmpty(label), String.format("The given label '%s' is blank", label)); Validate.isTrue(max > 0, String.format("The given max value %d must be positive", max)); this.label = label; this.max = max; this.current = max; }
From source file:hr.fer.spocc.regex.AbstractRegularExpression.java
public AbstractRegularExpression(Collection<RegularExpressionElement> c) throws IllegalArgumentException { Validate.isTrue(c != null && !c.isEmpty(), "Element list must be non-empty"); this.elements = Collections.unmodifiableList(new ArrayList<RegularExpressionElement>(c)); RegularExpression<T> root = createParseTree(elements); this.type = root.getType(); if (root.isTrivial()) { this.operator = null; this.subexpression1 = null; this.subexpression2 = null; } else {// w w w . j a v a 2 s . co m this.operator = root.getOperator(); int arity = operator.getArity(); this.subexpression1 = (arity > 0 ? root.getSubexpression(0) : null); this.subexpression2 = (arity > 1 ? root.getSubexpression(1) : null); } }
From source file:fr.ritaly.dungeonmaster.map.Stairs.java
public Stairs(Direction direction, boolean ascending, Position destination) { super(Type.STAIRS, direction); Validate.isTrue(destination != null, "The given destination is null"); this.ascending = ascending; this.destination = destination; }
From source file:com.opengamma.analytics.financial.model.option.definition.SupershareOptionDefinition.java
/** * @param expiry The expiry/*from w ww. ja v a 2 s. c o m*/ * @param lowerBound The lower bound * @param upperBound The upper bound */ public SupershareOptionDefinition(final Expiry expiry, final double lowerBound, final double upperBound) { super(null, expiry, null); Validate.isTrue(lowerBound >= 0, "lower bound must be >= 0"); Validate.isTrue(upperBound >= 0, "upper bound must be >= 0"); Validate.isTrue(upperBound > lowerBound, "Lower bound must be less than upper bound"); _lowerBound = lowerBound; _upperBound = upperBound; }