com.github.jinahya.assertj.validation.LangUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of assertj-bean-validation-generic Show documentation

An AssertJ extension for Bean-Validation

The newest version!

package com.github.jinahya.assertj.validation;

/*-
 * #%L
 * assertj-bean-validation
 * %%
 * Copyright (C) 2021 Jinahya, Inc.
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import static java.util.Objects.requireNonNull;

final class LangUtils {

    static boolean isInstanceOf(final Class clazz, final Object object) {
        return requireNonNull(clazz, "clazz is null")
                .isInstance(requireNonNull(object, "object is null"));
    }

    static  T requireInstanceOf(final Class clazz, final T object) {
        if (!isInstanceOf(clazz, object)) {
            throw new IllegalArgumentException("not an instance of " + clazz + ": " + object);
        }
        return object;
    }

    private LangUtils() {
        throw new NonInstantiatableAssertionError();
    }
}