/*
* 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.axis2.databinding.types ;
import java.io.ByteArrayOutputStream;
import java.io.Serializable;
/** Custom class for supporting primitive XSD data type hexBinary. */
public class HexBinary implements Serializable {
private static final long serialVersionUID = -5082403899986720767L;
byte[] m_value;
public HexBinary() {
}
public HexBinary(String string) {
m_value = decode(string);
}
public HexBinary(byte[] bytes) {
m_value = bytes;
}
public byte[] getBytes() {
return m_value;
}
public String toString() {
return encode(m_value);
}
public int hashCode() {
//TODO: How do we hash this?
return super.hashCode();
}
public boolean equals(Object object) {
//TODO: Is this good enough?
String s1 = object.toString();
String s2 = this.toString();
return s1.equals(s2);
}
// public static final String ERROR_ODD_NUMBER_OF_DIGITS =
//Messages.getMessage("oddDigits00");
//public static final String ERROR_BAD_CHARACTER_IN_HEX_STRING =
// Messages.getMessage("badChars01");
// Code from Ajp11, from Apache's JServ
// Table for HEX to DEC byte translation
public static final int[] DEC = {
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
00, 01, 02, 03, 04, 05, 06, 07, 8, 9, -1, -1, -1, -1, -1, -1,
-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
};
/**
* Convert a String of hexadecimal digits into the corresponding byte array by encoding each two
* hexadecimal digits as a byte.
*
* @param digits Hexadecimal digits representation
* @throws IllegalArgumentException if an invalid hexadecimal digit is found, or the input
* string contains an odd number of hexadecimal digits
*/
public static byte[] decode(String digits) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
for (int i = 0; i < digits.length(); i += 2) {
char c1 = digits.charAt(i);
if ((i + 1) >= digits.length())
throw new IllegalArgumentException
();//ERROR_ODD_NUMBER_OF_DIGITS);
char c2 = digits.charAt(i + 1);
byte b = 0;
if ((c1 >= '0') && (c1 <= '9'))
b += ((c1 - '0') * 16);
else if ((c1 >= 'a') && (c1 <= 'f'))
b += ((c1 - 'a' + 10) * 16);
else if ((c1 >= 'A') && (c1 <= 'F'))
b += ((c1 - 'A' + 10) * 16);
else
throw new IllegalArgumentException
();//ERROR_BAD_CHARACTER_IN_HEX_STRING);
if ((c2 >= '0') && (c2 <= '9'))
b += (c2 - '0');
else if ((c2 >= 'a') && (c2 <= 'f'))
b += (c2 - 'a' + 10);
else if ((c2 >= 'A') && (c2 <= 'F'))
b += (c2 - 'A' + 10);
else
throw new IllegalArgumentException
();//ERROR_BAD_CHARACTER_IN_HEX_STRING);
baos.write(b);
}
return (baos.toByteArray());
}
/**
* Convert a byte array into a printable format containing a String of hexadecimal digit
* characters (two per byte).
*
* @param bytes Byte array representation
*/
public static String encode(byte bytes[]) {
StringBuffer sb = new StringBuffer(bytes.length * 2);
for (int i = 0; i < bytes.length; i++) {
sb.append(convertDigit(bytes[i] >> 4));
sb.append(convertDigit(bytes[i] & 0x0f));
}
return (sb.toString());
}
/**
* Convert 4 hex digits to an int, and return the number of converted bytes.
*
* @param hex Byte array containing exactly four hexadecimal digits
* @throws IllegalArgumentException if an invalid hexadecimal digit is included
*/
public static int convert2Int(byte[] hex) {
// Code from Ajp11, from Apache's JServ
// assert b.length==4
// assert valid data
int len;
if (hex.length < 4) return 0;
if (DEC[hex[0]] < 0)
throw new IllegalArgumentException();//ERROR_BAD_CHARACTER_IN_HEX_STRING);
len = DEC[hex[0]];
len = len << 4;
if (DEC[hex[1]] < 0)
throw new IllegalArgumentException();//ERROR_BAD_CHARACTER_IN_HEX_STRING);
len += DEC[hex[1]];
len = len << 4;
if (DEC[hex[2]] < 0)
throw new IllegalArgumentException();//ERROR_BAD_CHARACTER_IN_HEX_STRING);
len += DEC[hex[2]];
len = len << 4;
if (DEC[hex[3]] < 0)
throw new IllegalArgumentException();//ERROR_BAD_CHARACTER_IN_HEX_STRING);
len += DEC[hex[3]];
return len;
}
/**
* [Private] Convert the specified value (0 .. 15) to the corresponding hexadecimal digit.
*
* @param value Value to be converted
*/
private static char convertDigit(int value) {
value &= 0x0f;
if (value >= 10)
return ((char)(value - 10 + 'a'));
else
return ((char)(value + '0'));
}
}