001/*
002 * nimbus-jose-jwt
003 *
004 * Copyright 2012-2016, Connect2id Ltd.
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use
007 * this file except in compliance with the License. You may obtain a copy of the
008 * License at
009 *
010 *    http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software distributed
013 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
014 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
015 * specific language governing permissions and limitations under the License.
016 */
017
018package com.nimbusds.jose.util;
019
020
021/**
022 * Integer utilities.
023 *
024 * @author Vladimir Dzhuvinov
025 * @version 2015-05-12
026 */
027public class IntegerUtils {
028
029
030        /**
031         * Returns a four byte array representation of the specified integer.
032         *
033         * @param intValue The integer to be converted.
034         *
035         * @return The byte array representation of the integer.
036         */
037        public static byte[] toBytes(int intValue) {
038
039                byte[] res = new byte[4];
040                res[0] = (byte) (intValue >>> 24);
041                res[1] = (byte) ((intValue >>> 16) & 0xFF);
042                res[2] = (byte) ((intValue >>> 8) & 0xFF);
043                res[3] = (byte) (intValue & 0xFF);
044                return res;
045        }
046
047
048        /**
049         * Prevents public instantiation.
050         */
051        private IntegerUtils() {
052
053        }
054}