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.method.PresentValueForexBlackVolatilityQuoteSensitivityDataBundle.java
/** * Constructor with initial sensitivities for a given currency pair. * @param ccy1 First currency, not null/*from ww w . j a va 2s.c o m*/ * @param ccy2 Second currency, not null * @param expiries The expiries for the vega matrix, not null * @param delta The deltas for the vega matrix, not null * @param vega The initial sensitivity, not null */ public PresentValueForexBlackVolatilityQuoteSensitivityDataBundle(final Currency ccy1, final Currency ccy2, final double[] expiries, final double[] delta, final double[][] vega) { Validate.notNull(ccy1, "currency 1"); Validate.notNull(ccy2, "currency 2"); Validate.notNull(expiries, "expiries"); Validate.notNull(delta, "delta"); Validate.notNull(vega, "Matrix"); Validate.isTrue(vega.length == expiries.length, "Number of rows did not match number of expiries"); Validate.isTrue(vega[0].length == delta.length, "Number of columns did not match number of delta"); _currencyPair = ObjectsPair.of(ccy1, ccy2); _expiries = expiries; _delta = delta; _vega = vega; }
From source file:com.opengamma.analytics.financial.model.option.pricing.fourier.IntegralLimitCalculator.java
/** * //from w w w. ja va 2 s . c o m * @param psi The characteristic function, not null * @param alpha The value of $\alpha$, not 0 or -1 * @param tol The tolerance for the root * @return The root */ public double solve(final Function1D<ComplexNumber, ComplexNumber> psi, final double alpha, final double tol) { Validate.notNull(psi, "psi null"); Validate.isTrue(alpha != 0.0 && alpha != -1.0, "alpha cannot be -1 or 0"); Validate.isTrue(tol > 0.0, "need tol > 0"); final double k = Math.log(tol) + Math.log(ComplexMathUtils.mod(psi.evaluate(new ComplexNumber(0.0, -(1 + alpha))))); final Function1D<Double, Double> f = new Function1D<Double, Double>() { @Override public Double evaluate(final Double x) { final ComplexNumber z = new ComplexNumber(x, -(1 + alpha)); return Math.log(ComplexMathUtils.mod(psi.evaluate(z))) - k; } }; double[] range = null; try { range = s_bracketRoot.getBracketedPoints(f, 0.0, 200.0); } catch (MathException e) { s_log.warn("Could not find integral limit. Using default of 500"); return 500.0; } return s_root.getRoot(f, range[0], range[1]); }
From source file:de.matzefratze123.heavyspleef.core.SimpleBasicTask.java
@Override public void start() { if (isRunning()) { throw new IllegalStateException("Task is already running"); }//from w w w . ja v a 2 s . c o m long delay = 0; long period = 0; if (taskType.getArgsLength() > 0) { Validate.isTrue(taskArgs.length >= 1, "Must specify delay in taskArgs"); delay = taskArgs[0]; if (taskType.getArgsLength() > 1) { Validate.isTrue(taskArgs.length >= 2, "Must specify delay and period in taskArgs"); period = taskArgs[1]; } } switch (taskType) { case ASYNC_DELAYED_TASK: task = scheduler.runTaskLaterAsynchronously(plugin, this, delay); break; case ASYNC_REPEATING_TASK: task = scheduler.runTaskTimerAsynchronously(plugin, this, delay, period); break; case ASYNC_RUN_TASK: task = scheduler.runTaskAsynchronously(plugin, this); break; case SYNC_DELAYED_TASK: task = scheduler.runTaskLater(plugin, this, delay); break; case SYNC_REPEATING_TASK: task = scheduler.runTaskTimer(plugin, this, delay, period); break; case SYNC_RUN_TASK: task = scheduler.runTask(plugin, this); break; default: break; } }
From source file:com.opengamma.analytics.financial.equity.variance.pricing.RealizedVariance.java
@Override public Double evaluate(final VarianceSwap swap) { double[] obs = swap.getObservations(); int nObs = obs.length; if (nObs < 2) { return 0.0; }//from www. j a v a 2 s.c o m Double[] weights = new Double[obs.length - 1]; if (swap.getObservationWeights().length == 0) { Arrays.fill(weights, 1.0); } else if (swap.getObservationWeights().length == 1) { Arrays.fill(weights, swap.getObservationWeights()[0]); } else { int nWeights = swap.getObservationWeights().length; Validate.isTrue(nWeights == nObs - 1, "If provided, observationWeights must be of length one less than observations, as they weight returns log(obs[i]/obs[i-1])." + " Found " + nWeights + " weights and " + nObs + " observations."); } Validate.isTrue(obs[0] != 0.0, "In VarianceSwap, the first observation is zero so the estimate of RealizedVariance is undefined. Check time series."); double logReturns = 0; for (int i = 1; i < nObs; i++) { Validate.isTrue(obs[i] != 0.0, "Encountered an invalid observation of zero in VarianceSwap at " + i + "'th observation. " + "The estimate of RealizedVariance is undefined. Check time series."); logReturns += weights[i - 1] * FunctionUtils.square(Math.log(obs[i] / obs[i - 1])); } return logReturns / (nObs - 1) * swap.getAnnualizationFactor(); }
From source file:com.opengamma.analytics.math.linearalgebra.TridiagonalMatrix.java
/** * @param a An array containing the diagonal values of the matrix, not null * @param b An array containing the upper sub-diagonal values of the matrix, not null. Its length must be one less than the length of the diagonal array * @param c An array containing the lower sub-diagonal values of the matrix, not null. Its length must be one less than the length of the diagonal array *///from www.jav a 2 s . c o m public TridiagonalMatrix(final double[] a, final double[] b, final double[] c) { Validate.notNull(a, "a"); Validate.notNull(b, "b"); Validate.notNull(c, "c"); final int n = a.length; Validate.isTrue(b.length == n - 1, "Length of subdiagonal b is incorrect"); Validate.isTrue(c.length == n - 1, "Length of subdiagonal c is incorrect"); _a = a; _b = b; _c = c; }
From source file:ar.com.zauber.commons.web.uri.factory.RelativePathUriFactory.java
/** Creates a new {@link RelativePathUriFactory} */ public RelativePathUriFactory(final UriFactory callback, final String encoding, final RequestProvider requestProvider) { Validate.notNull(callback);//from w w w . ja v a2s.c o m Validate.notNull(encoding); Validate.notNull(requestProvider); Validate.isTrue(Charset.isSupported(encoding), "Encoding no soportado"); defaultEncoding = encoding; this.callback = callback; this.requestProvider = requestProvider; }
From source file:net.daboross.bukkitdev.skywars.api.arenaconfig.SkyArenaConfig.java
public SkyArenaConfig(String arenaName, List<SkyPlayerLocation> spawns, int numTeams, int teamSize, final int minPlayers, int placementY, SkyBoundariesConfig boundaries, final List<SkyArenaChest> chests) { Validate.isTrue(numTeams >= 2, "Num teams can't be smaller than 2"); Validate.isTrue(teamSize >= 1, "Team size can't be smaller than 1"); Validate.isTrue(minPlayers <= numTeams * teamSize, "Min players can't be smaller tha max players (num teams * team size)"); Validate.isTrue(placementY >= 0, "placement-y can't be smaller than 0"); Validate.notNull(boundaries);//from w w w . j av a 2 s . c om Validate.notNull(spawns); Validate.isTrue(spawns.size() >= numTeams, "Number of spawns needs to be at least as big as numTeams"); this.arenaName = arenaName; this.spawns = new ArrayList<>(spawns.size()); for (SkyPlayerLocation l : spawns) { this.spawns.add(l.changeWorld(null)); } this.numTeams = numTeams; this.teamSize = teamSize; this.minPlayers = minPlayers; this.placementY = placementY; this.boundaries = boundaries; this.chests = chests; }
From source file:com.opengamma.analytics.financial.model.option.pricing.fourier.MeanCorrection.java
@Override public ComplexNumber getValue(ComplexNumber u, double t) { final ComplexNumber temp = _base.getValue(MINUS_I, t); Validate.isTrue(Math.abs(temp.getImaginary()) < 1e-12, "problem with CharacteristicExponent"); final ComplexNumber w = new ComplexNumber(0, -temp.getReal()); return add(_base.getValue(u, t), multiply(w, u)); }
From source file:ar.com.zauber.garfio.modules.mantis.model.MantisTrackerSession.java
/** constructor * @param username *//*from w ww .j a va2 s . co m*/ public MantisTrackerSession(final ActionFactory actionFactory, final ISession session, final String username) { Validate.notNull(actionFactory, "actionFactory is null"); Validate.notNull(session, "session is null"); Validate.isTrue(!StringUtils.isBlank(username), "username is blank"); this.actionFactory = actionFactory; this.session = session; this.username = username; }
From source file:com.opengamma.analytics.math.statistics.descriptive.PartialMomentCalculator.java
/** * @param x The array of data, not null or empty * @return The partial moment//from w w w . j a v a 2s.c o m */ @Override public Double evaluate(final double[] x) { Validate.notNull(x, "x"); Validate.isTrue(x.length > 0, "x cannot be empty"); final int n = x.length; final double[] copyX = Arrays.copyOf(x, n); Arrays.sort(copyX); double sum = 0; if (_useDownSide) { int i = 0; if (copyX[i] > _threshold) { return 0.; } while (i < n && copyX[i] < _threshold) { sum += (copyX[i] - _threshold) * (copyX[i] - _threshold); i++; } return Math.sqrt(sum / i); } int i = n - 1; int count = 0; if (copyX[i] < _threshold) { return 0.; } while (i >= 0 && copyX[i] > _threshold) { sum += (copyX[i] - _threshold) * (copyX[i] - _threshold); count++; i--; } return Math.sqrt(sum / count); }