001 /* 002 * Copyright (c) 2000 - 2006 The Legion Of The Bouncy Castle (http://www.bouncycastle.org) 003 * 004 * Permission is hereby granted, free of charge, to any person obtaining a copy of this 005 * software and associated documentation files (the "Software"), to deal in the Software 006 * without restriction, including without limitation the rights to use, copy, modify, 007 * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to 008 * permit persons to whom the Software is furnished to do so, subject to the following 009 * conditions: 010 * 011 * The above copyright notice and this permission notice shall be included in all copies 012 * or substantial portions of the Software. 013 * 014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 015 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 016 * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 017 * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 018 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 019 * DEALINGS IN THE SOFTWARE. 020 * 021 */ 022 023 package org.apache.directory.shared.asn1.der; 024 025 026 import java.math.BigInteger; 027 028 029 /** 030 * DER Integer object. 031 */ 032 public class DERInteger extends DERObject 033 { 034 /** 035 * Basic DERObject constructor. 036 */ 037 DERInteger(byte[] value) 038 { 039 super( INTEGER, value ); 040 } 041 042 043 /** 044 * Static factory method, type-conversion operator. 045 */ 046 public static DERInteger valueOf( int integer ) 047 { 048 return new DERInteger( intToOctet( integer ) ); 049 } 050 051 052 /** 053 * Lazy accessor 054 * 055 * @return integer value 056 */ 057 public int intValue() 058 { 059 return octetToInt( value ); 060 } 061 062 063 /** 064 * Lazy accessor 065 * 066 * @return BigInteger value 067 */ 068 public BigInteger bigIntValue() 069 { 070 return new BigInteger( value ); 071 } 072 073 074 private static int octetToInt( byte[] bytes ) 075 { 076 return new BigInteger( bytes ).intValue(); 077 } 078 079 080 private static byte[] intToOctet( int integer ) 081 { 082 return BigInteger.valueOf( integer ).toByteArray(); 083 } 084 }