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A Java8, Guava compatible, Precondtions class.

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/*
 * Copyright 2015 Objectos, Fábrica de Software LTDA.
 *
 * 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.
 */
package br.com.objectos.core.lang;

import java.util.Objects;

/**
 * @author [email protected] (Marcio Endo)
 */
public class Preconditions {

  private Preconditions() {
  }

  public static void checkArgument(boolean expression) {
    if (!expression) {
      throw new IllegalArgumentException();
    }
  }

  public static void checkArgument(boolean expression, String message) {
    if (!expression) {
      throw new IllegalArgumentException(message);
    }
  }

  public static void checkArgument(boolean expression, String format, Object... args) {
    if (!expression) {
      throw new IllegalArgumentException(String.format(format, args));
    }
  }

  public static  T checkNotNull(T reference) {
    return Objects.requireNonNull(reference);
  }

  public static  T checkNotNull(T reference, String message) {
    return Objects.requireNonNull(reference, message);
  }

  public static  T checkNotNull(T reference, String format, Object... args) {
    return Objects.requireNonNull(reference, String.format(format, args));
  }

}