org.apache.commons.math3.stat.MathUtils.java Source code

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Here is the source code for org.apache.commons.math3.stat.MathUtils.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.commons.math3.stat;

import org.apache.commons.math3.exception.NullArgumentException;
import org.apache.commons.math3.exception.util.Localizable;

public final class MathUtils {

    /**
     * Class contains only static methods.
     */
    private MathUtils() {
    }

    /**
     * Checks that an object is not null.
     *
     * @param o Object to be checked.
     * @param pattern Message pattern.
     * @param args Arguments to replace the placeholders in {@code pattern}.
     * @throws NullArgumentException if {@code o} is {@code null}.
     */
    public static void checkNotNull(Object o, Localizable pattern, Object... args) throws NullArgumentException {
        if (o == null) {
            throw new NullArgumentException(pattern, args);
        }
    }

    /**
     * Checks that an object is not null.
     *
     * @param o Object to be checked.
     * @throws NullArgumentException if {@code o} is {@code null}.
     */
    public static void checkNotNull(Object o) throws NullArgumentException {
        if (o == null) {
            throw new NullArgumentException();
        }
    }
}