io.vertx.core.impl.Arguments.java Source code

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/*
 * Copyright (c) 2011-2019 Contributors to the Eclipse Foundation
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
 * which is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
 */

package io.vertx.core.impl;

/**
 * Helper class to perform extended checks on arguments analogous to
 * {@link java.util.Objects#requireNonNull(Object, String)}.
 */
public class Arguments {

    /**
     * Checks that the specified condition is fulfilled and throws a customized {@link IllegalArgumentException} if it
     * is {@code false}.
     * @param condition condition which must be fulfilled
     * @param message detail message to be used in the event that a {@code
     * IllegalArgumentException} is thrown
     */
    public static void require(boolean condition, String message) {
        if (!condition) {
            throw new IllegalArgumentException(message);
        }
    }

    /**
     * Checks that the specified number is within the specified minimum and maximum range (inclusively) and throws a
     * customized {@link IllegalArgumentException} if not.
     * @param number value to check
     * @param min minimum allowed value
     * @param max maximum allowed value
     * @param message detail message to be used in the event that a {@code
     * IllegalArgumentException} is thrown
     */
    public static void requireInRange(int number, int min, int max, String message) {
        if (number < min || number > max) {
            throw new IllegalArgumentException(message);
        }
    }

}