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.opengamma.analytics.financial.forex.derivative.Forex.java
/** * Constructor from two fixed payments. The payments should take place on the same date. The sign of the amounts should be opposite. * @param paymentCurrency1 The first currency payment. * @param paymentCurrency2 The second currency payment. *//* w w w. j a va2s. c om*/ public Forex(final PaymentFixed paymentCurrency1, final PaymentFixed paymentCurrency2) { Validate.notNull(paymentCurrency1, "Payment 1"); Validate.notNull(paymentCurrency2, "Payment 2"); Validate.isTrue(Double.doubleToLongBits(paymentCurrency1.getPaymentTime()) == Double .doubleToLongBits(paymentCurrency2.getPaymentTime()), "Payments on different time"); Validate.isTrue((paymentCurrency1.getAmount() * paymentCurrency2.getAmount()) <= 0, "Payments with same sign"); Validate.isTrue(!paymentCurrency1.getCurrency().equals(paymentCurrency2.getCurrency()), "same currency"); this._paymentCurrency1 = paymentCurrency1; this._paymentCurrency2 = paymentCurrency2; }
From source file:de.xaniox.heavyspleef.core.SimpleBasicTask.java
public long getTaskArgument(int index) { Validate.isTrue(index < taskArgs.length, "Index out of bounds"); return taskArgs[index]; }
From source file:com.opengamma.analytics.math.matrix.MatrixAlgebra.java
/** * Adds two matrices. This operation can only be performed if the matrices are of the same type and dimensions. * @param m1 The first matrix, not null//from w w w .ja v a 2s . c o m * @param m2 The second matrix, not null * @return The sum of the two matrices * @throws IllegalArgumentException If the matrices are not of the same type, if the matrices are not the same shape. */ public Matrix<?> add(final Matrix<?> m1, final Matrix<?> m2) { Validate.notNull(m1, "m1"); Validate.notNull(m2, "m2"); if (m1 instanceof DoubleMatrix1D) { if (m2 instanceof DoubleMatrix1D) { final double[] x1 = ((DoubleMatrix1D) m1).getData(); final double[] x2 = ((DoubleMatrix1D) m2).getData(); final int n = x1.length; Validate.isTrue(n == x2.length, "Can only add matrices of the same shape"); final double[] sum = new double[n]; for (int i = 0; i < n; i++) { sum[i] = x1[i] + x2[i]; } return new DoubleMatrix1D(sum); } throw new IllegalArgumentException("Tried to add a " + m1.getClass() + " and " + m2.getClass()); } else if (m1 instanceof DoubleMatrix2D) { if (m2 instanceof DoubleMatrix2D) { final double[][] x1 = ((DoubleMatrix2D) m1).getData(); final double[][] x2 = ((DoubleMatrix2D) m2).getData(); final int n = x1.length; final int m = x1[0].length; Validate.isTrue(n == x2.length, "Can only add matrices of the same shape"); final double[][] sum = new double[n][x1[0].length]; for (int i = 0; i < n; i++) { Validate.isTrue(m == x2[i].length, "Can only add matrices of the same shape"); for (int j = 0; j < m; j++) { sum[i][j] = x1[i][j] + x2[i][j]; } } return new DoubleMatrix2D(sum); } throw new IllegalArgumentException("Tried to add a " + m1.getClass() + " and " + m2.getClass()); } throw new NotImplementedException(); }
From source file:net.jodah.failsafe.internal.actions.DelayedForAction.java
/** * Constructs a new action which will delay the specified action for the specified amount of time. * * @param expectation the expectation where to get the last recorded action to delay * @param name the name for this action/*ww w . j a v a 2 s .c o m*/ * @param delay the number of seconds to delay * @throws IllegalArgumentException if <code>delay</code> is negative */ DelayedForAction(ActionRegistry<R>.Expectation expectation, String name, int delay) { super(expectation, name); Validate.isTrue(delay >= 0, "number of seconds must not be negative"); this.delay = delay; }
From source file:com.hp.autonomy.aci.content.fieldtext.FieldTextWrapper.java
/** * Creates an immutable copy of the specified {@code FieldText} object. The copy is not backed by the original * object./* w w w . j a v a2 s. com*/ * * @param fieldText The object to copy. Must be non-null. */ public FieldTextWrapper(final FieldText fieldText) { Validate.notNull(fieldText, "FieldText must not be null"); this.fieldText = fieldText.toString(); this.size = fieldText.size(); Validate.notNull(this.fieldText, "FieldText string must not be null"); Validate.isTrue(size >= 0, "FieldText size must be non-negative"); }
From source file:com.opengamma.analytics.financial.model.finitedifference.CrankNicolsonFiniteDifference2D.java
/** * Sets up a scheme that is the weighted average of an explicit and an implicit scheme * @param theta The weight. theta = 0 - fully explicit, theta = 0.5 - Crank-Nicolson, theta = 1.0 - fully implicit *///from w w w . java2s. com public CrankNicolsonFiniteDifference2D(final double theta) { Validate.isTrue(theta >= 0 && theta <= 1.0, "theta must be in the range 0 to 1"); _theta = theta; }
From source file:de.xaniox.heavyspleef.core.event.EventListenerMethod.java
@SuppressWarnings("unchecked") public EventListenerMethod(Object instance, Method method) { this.instance = instance; this.method = method; if (!method.isAccessible()) { method.setAccessible(true);//www. ja va 2 s .co m } subscribe = method.getAnnotation(Subscribe.class); Class<?>[] parameters = method.getParameterTypes(); Validate.isTrue(parameters.length == 1, "method must have only one parameter which must be a subtype of Event"); Class<?> eventClass = parameters[0]; Validate.isTrue(Event.class.isAssignableFrom(eventClass), "First parameter of method must be a subtype of Event"); this.eventClass = (Class<? extends Event>) eventClass; }
From source file:com.opengamma.analytics.financial.equity.future.derivative.EquityFuture.java
/** * //from w ww . ja v a 2 s. com * @param timeToExpiry time (in years as a double) until the date-time at which the reference index is fixed * @param timeToSettlement time (in years as a double) until the date-time at which the contract is settled * @param strike Set strike price at trade time. Note that we may handle margin by resetting this at the end of each trading day * @param currency The reporting currency of the future * @param unitAmount The unit value per tick, in given currency */ public EquityFuture(final double timeToExpiry, final double timeToSettlement, final double strike, final Currency currency, final double unitAmount) { // TODO Case - Validate!!! Validate.isTrue(unitAmount > 0, "point value must be positive"); _timeToExpiry = timeToExpiry; _timeToSettlement = timeToSettlement; _strike = strike; _unitAmount = unitAmount; _currency = currency; }
From source file:com.opengamma.analytics.math.integration.GaussianQuadratureIntegrator1D.java
/** * @param n The number of sample points to be used in the integration, not negative or zero * @param generator The generator of weights and abscissas *//*from ww w .ja v a 2 s. c om*/ public GaussianQuadratureIntegrator1D(final int n, final QuadratureWeightAndAbscissaFunction generator) { Validate.isTrue(n > 0, "number of intervals must be > 0"); Validate.notNull(generator, "generating function"); _n = n; _generator = generator; }
From source file:com.opengamma.analytics.math.statistics.descriptive.SampleNormalizedCentralMomentCalculator.java
/** * @param x The array of data, not null. Must contain at least two data points. * @return The normalized sample central moment. *//*from w ww . j a v a 2s . c o m*/ @Override public Double evaluate(final double[] x) { Validate.notNull(x); Validate.isTrue(x.length >= 2, "Need at least 2 data points to calculate normalized central moment"); if (_n == 0) { return 1.; } return _moment.evaluate(x) / Math.pow(STD_DEV.evaluate(x), _n); }