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}