Example usage for com.google.common.base Preconditions checkArgument

Introduction

In this page you can find the example usage for com.google.common.base Preconditions checkArgument.

Prototype

public static void checkArgument(boolean expression, @Nullable Object errorMessage)

Source Link

Document

Ensures the truth of an expression involving one or more parameters to the calling method.

Usage

From source file:com.nesscomputing.mojo.numbers.beans.IWFCEnum.java

public static IWFCEnum forString(final String value) {
    Preconditions.checkArgument(value != null, "the value can not be null");
    return valueOf(IWFCEnum.class, value.toUpperCase(Locale.ENGLISH));
}

From source file:org.haiku.haikudepotserver.dataobjects.Permission.java

public static Optional<Permission> getByCode(ObjectContext context, final String code) {
    Preconditions.checkArgument(null != context, "the context must be provided");
    Preconditions.checkArgument(!Strings.isNullOrEmpty(code), "the permission code must be provided");
    return getAll(context).stream().filter(p -> p.getCode().equals(code)).collect(SingleCollector.optional());
}

From source file:org.haiku.haikudepotserver.dataobjects.UserRatingStability.java

public static Optional<UserRatingStability> getByCode(ObjectContext context, String code) {
    Preconditions.checkArgument(null != context, "the context must be supplied");
    Preconditions.checkArgument(!Strings.isNullOrEmpty(code), "the code must be supplied");
    return getAll(context).stream().filter((urs) -> urs.getCode().equals(code)).findFirst();
}

From source file:org.basepom.mojo.propertyhelper.beans.IgnoreWarnFailCreate.java

public static IgnoreWarnFailCreate forString(final String value) {
    Preconditions.checkArgument(value != null, "the value can not be null");
    return Enum.valueOf(IgnoreWarnFailCreate.class, value.toUpperCase(Locale.ENGLISH));
}

From source file:org.eclipse.viatra.query.runtime.util.IncQueryLoggingUtil.java

public static void setExternalLogger(Logger externalLogger) {
    Preconditions.checkArgument(externalLogger != null, "Must not set up null logger");
    IncQueryLoggingUtil.externalLogger = externalLogger;
}

From source file:org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil.java

public static void setExternalLogger(Logger externalLogger) {
    Preconditions.checkArgument(externalLogger != null, "Must not set up null logger");
    ViatraQueryLoggingUtil.externalLogger = externalLogger;
}

From source file:org.eclipse.viatra.modelobfuscator.util.ObfuscatorUtil.java

public static String generateHexSeed(int length) {
    Preconditions.checkArgument(length > 0, "Length must be positive");
    // each fragment is 3 characters and we need an additional one
    int noOfFragments = (length / 3) + 1;
    StringBuilder sb = new StringBuilder(noOfFragments * 3);
    for (int i = 0; i < noOfFragments; i++) {
        // randomized string but first 3 chars not too random (typically "3fd")
        String fragment = Long.toHexString(Double.doubleToLongBits(Math.random()));
        // take only last 3 characters
        sb.append(fragment.substring(3, 6));
    }/*from   w  w w. j  ava2 s  .  c o m*/
    return sb.substring(0, length);
}

From source file:model.utilities.pid.ControllerFactory.java

/**
 * The factory creates the controller of specified type by drawing parameters at random from the model class
 * @param controllerType the type of controller you want
 * @return the controller object you get
 *///from  w  ww.jav  a 2  s. com
public static <C extends Controller> C buildController(Class<C> controllerType, MacroII model) {
    Preconditions.checkArgument(controllerType != null && model != null, "Don't pass nulls!");

    //if it's a PID controller
    if (controllerType.equals(PIDController.class)) {
        return (C) new PIDController(model.drawProportionalGain(), model.drawIntegrativeGain(),
                model.drawDerivativeGain(), model.drawPIDSpeed());
    } else if (controllerType.equals(CascadePIDController.class)) {
        return (C) new CascadePIDController(model.drawProportionalGain(), model.drawIntegrativeGain(),
                model.drawDerivativeGain(), model.drawProportionalGain(), 0, 0, model.getRandom());
    } else if (controllerType.equals(CascadePToPIDController.class)) {
        return (C) new CascadePToPIDController(model);
    } else
        throw new IllegalArgumentException("The Controller factory doesn't recognize: " + controllerType);

}

From source file:com.zaradai.kunzite.optimizer.model.InputSpec.java

public static InputSpec newInstance(int position, Series series) {
    Preconditions.checkArgument(position >= 0, "Invalid input position specified");
    Preconditions.checkNotNull(series, "Invalid Series supplied");

    return new InputSpec(position, series);
}

From source file:org.haiku.haikudepotserver.dataobjects.Prominence.java

public static List<Prominence> getAll(ObjectContext context) {
    Preconditions.checkArgument(null != context, "the context must be supplied");
    return ObjectSelect.query(Prominence.class).orderBy(ORDERING.asc()).sharedCache().select(context);
}