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.io.UnsupportedEncodingException; 027 028 029 /** 030 * Interface for DER string objects. 031 */ 032 public abstract class DERString extends DERObject 033 { 034 /** 035 * Basic DERObject constructor. 036 */ 037 DERString(int tag, byte[] value) 038 { 039 super( tag, value ); 040 } 041 042 043 /** 044 * Lazy accessor. 045 * 046 * @return underlying byte array converted to a String 047 */ 048 public String getString() 049 { 050 return byteArrayToString( value ); 051 } 052 053 054 /** 055 * Utility method for converting byte arrays to Strings. 056 * 057 * @param bytes 058 * @return String 059 */ 060 protected static String byteArrayToString( byte[] bytes ) 061 { 062 try 063 { 064 return new String( bytes, "UTF-8" ); 065 } 066 catch ( UnsupportedEncodingException uee ) 067 { 068 return ""; 069 } 070 } 071 072 073 /** 074 * Utility method for converting Strings to bytes. 075 * 076 * @param string 077 * @return bytes 078 */ 079 protected static byte[] stringToByteArray( String string ) 080 { 081 try 082 { 083 return string.getBytes( "UTF-8" ); 084 } 085 catch ( UnsupportedEncodingException uee ) 086 { 087 return new byte[] 088 {}; 089 } 090 } 091 }