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.model.volatility.surface.LogMoneyness.java
public LogMoneyness(final double strike, final double forward) { Validate.isTrue(strike > 0, "negative or zero strike"); Validate.isTrue(forward > 0, "negative or zero forward"); _value = Math.log(strike / forward); }
From source file:com.opengamma.analytics.math.utilities.Diff.java
/** * Finds the t^{th} numerical difference between value at position (i+1) and (i) * (effectively recurses {@link Diff.values} "t" times); * @param v the vector/*www . ja v a 2 s . co m*/ * @param t the number of differences to be taken (t positive). * @return the numerical difference between adjacent elements in v */ public static double[] values(final double[] v, final int t) { Validate.notNull(v); Validate.isTrue((t > -1), "Invalid number of differences requested, t must be positive or 0. The given t was: " + t); Validate.isTrue((t < v.length), "Invalid number of differences requested, 't' is greater than the number of elements in 'v'. The given 't' was: " + t + " and 'v' contains " + v.length + " elements."); double[] tmp; if (t == 0) { // no differencing done tmp = new double[v.length]; System.arraycopy(v, 0, tmp, 0, v.length); } else { tmp = values(v); for (int i = 0; i < t - 1; i++) { tmp = values(tmp); } } return tmp; }
From source file:fr.ritaly.dungeonmaster.Utils.java
/** * Returns a random value within the specified range [min, max]. * * @param min// w w w. j a v a 2s . co m * the range's lower bound. Can't be negative. * @param max * the range's upper bound. Can't be negative. * @return a random integer within the specified range. */ public static int random(int min, int max) { Validate.isTrue(min >= 0, String.format("The given min %d must be positive", min)); Validate.isTrue(max >= 0, String.format("The given max %d must be positive", max)); Validate.isTrue(min < max, String.format("The given min %d must be lesser than the max %d", min, max)); return min + RandomUtils.nextInt(max + 1 - min); }
From source file:com.opengamma.analytics.financial.interestrate.swap.derivative.FloatingRateNote.java
private static Annuity<PaymentFixed> setUpFixedLeg(final Annuity<CouponIborSpread> annuity, final PaymentFixed initalPayment, final PaymentFixed finalPayment) { final String curveName = annuity.getDiscountCurve(); //consistency checks on the inputs Validate.isTrue(initalPayment.getCurrency() == finalPayment.getCurrency(), "initial and final payments in different currencies"); Validate.isTrue(initalPayment.getCurrency() == annuity.getCurrency(), "flaoting and fixed payments in different currencies"); Validate.isTrue(initalPayment.getPaymentTime() < finalPayment.getPaymentTime(), "initial payment after final payment"); Validate.isTrue(initalPayment.getPaymentTime() <= annuity.getNthPayment(0).getPaymentTime(), "initial payment after first floating payments"); Validate.isTrue(curveName == initalPayment.getFundingCurveName(), "inital payment discounted off different curve to floating payments"); Validate.isTrue(curveName == finalPayment.getFundingCurveName(), "final payment discounted off different curve to floating payments"); Validate.isTrue(initalPayment.getAmount() * finalPayment.getAmount() < 0, "inital payment should be oposite sign to final"); Validate.isTrue(/*w ww . j a v a 2s .com*/ (annuity.isPayer() && initalPayment.getAmount() > 0.0) || (!annuity.isPayer() && initalPayment.getAmount() < 0.0), "initial payment should be oposite sign to Ibor coupons"); final PaymentFixed[] fixedPayments = new PaymentFixed[2]; fixedPayments[0] = initalPayment; fixedPayments[1] = finalPayment; return new Annuity<PaymentFixed>(fixedPayments); }
From source file:in.voidma.lemming.LemmingLibrary.java
protected static void init(Plugin plugin, LemmingConfig config, LemmingManager manager) { Validate.isTrue(!initialized, "The Lemming Library has already been initialized."); LemmingLibrary.plugin = plugin;/*from w w w.ja v a 2s. c o m*/ LemmingLibrary.config = config; initialized = true; }
From source file:com.opengamma.analytics.financial.model.volatility.surface.Moneyness.java
public Moneyness(final double strike, final double forward) { Validate.isTrue(strike >= 0, "negative strike"); Validate.isTrue(forward > 0, "negative or zero forward"); _value = strike / forward;// w w w .j av a 2 s .c om }
From source file:com.opengamma.analytics.financial.model.finitedifference.PDETerminalResults1D.java
public PDETerminalResults1D(final PDEGrid1D grid, final double[] finalTimeStep) { Validate.isTrue(grid.getNumSpaceNodes() == finalTimeStep.length, "space steps in grid not equal to that in data"); _f = finalTimeStep;/*from w w w.ja v a 2 s .c o m*/ _grid = grid; }
From source file:com.opengamma.analytics.financial.model.volatility.smile.function.SVIFormulaData.java
public SVIFormulaData(final double[] parameters) { Validate.notNull(parameters, "parameters are null"); Validate.isTrue(parameters.length == NUM_PARAMETERS, "must be " + NUM_PARAMETERS + " parameters"); Validate.isTrue(parameters[0] >= 0, "Need a >= 0"); Validate.isTrue(parameters[1] >= 0, "Need b >= 0"); Validate.isTrue(parameters[2] >= -1 && parameters[2] <= 1, "Need -1 <= rho <= 1"); Validate.isTrue(parameters[3] >= 0, "Need nu >= 0"); _parameters = new double[NUM_PARAMETERS]; System.arraycopy(parameters, 0, _parameters, 0, NUM_PARAMETERS); }
From source file:com.opengamma.maths.lowlevelapi.functions.utilities.View.java
/** * Looks up the values in v at positions given by index and returns them! * @param v the vector/* w w w . j a va2 s.c o m*/ * @param low the lowest element of the range * @param high the highest element of the range * @return tmp the values looked up by range. i.e. values[low:high]; */ public static double[] byRange(double[] v, int low, int high) { Validate.notNull(v); final int n = v.length; Validate.isTrue(high < n, "Input \"high\" index out of range. " + high + " whereas vector to dereference is length " + n); Validate.isTrue(low > -1, "Negative index dereference requested on vector"); Validate.isTrue(high >= low, "high value is lower than low value, negative range not supported."); double[] tmp = new double[high - low + 1]; // fence post int ptr = 0; for (int i = low; i <= high; i++) { tmp[ptr] = v[i]; ptr++; } return tmp; }
From source file:de.diemex.keepxp.ScrollOfKeeping.java
public static ItemStack makeScroll(int lvl, int percentage) { Validate.isTrue(lvl > 0, "Cannot have a scroll with a negative value"); Validate.isTrue(percentage <= 100 && percentage >= 0, "percentage has to be < 100 & > 0 was " + percentage); ItemStack scroll = new ItemStack(Material.ENCHANTED_BOOK); ItemMeta meat = scroll.getItemMeta(); meat.setDisplayName("Scroll of Keeping " + StringUtils.repeat("I", lvl)); //only 1-4 List<String> lore = new ArrayList<String>(); lore.add("This Scroll lets you keep " + percentage + "%"); lore.add("of your experience on death."); lore.add(""); lore.add("But if you die the Scroll is"); lore.add("lost forever!"); lore.add(""); lore.add("SOC Lvl " + lvl); meat.setLore(lore);/*from w w w .jav a 2 s .co m*/ scroll.setItemMeta(meat); return scroll; }