net.blackhacker.crypto.Validator Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bh-crypto Show documentation

This package tries to simplify Java Encryption.

The newest version!

/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2015-2017 Benjamin King aka Blackhacker([email protected])
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package net.blackhacker.crypto;

/**
 *
 * @author Benjamin King aka Blackhacker
 */
final public class Validator {
    static public void notNull(Object o, String parameterName) {
        if (o == null)
            throw new NullPointerException(
                    String.format(Strings.NOT_NULL_MSG_FMT, parameterName));
    }
    
    static public void isTrue(boolean test, String message) {
        if (!test)
            throw new RuntimeException(message);
    }
    
    static public void isFalse(boolean test, String message) {
        isTrue(!test, message);
    }
    
    static public void isA(Object o, Class clazz, String parameterName) {
        isTrue(o.getClass().equals(clazz), 
               String.format(Strings.SHOULD_BE_A,parameterName, clazz.getName()));
    }
}