/**
*
* Copyright 2003-2004 The Apache Software Foundation
*
* Licensed 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.geronimo.util.encoders;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
public class Hex
{
private static final Encoder encoder = new HexEncoder();
/**
* encode the input data producing a Hex encoded byte array.
*
* @return a byte array containing the Hex encoded data.
*/
public static byte[] encode(
byte[] data)
{
return encode(data, 0, data.length);
}
/**
* encode the input data producing a Hex encoded byte array.
*
* @return a byte array containing the Hex encoded data.
*/
public static byte[] encode(
byte[] data,
int off,
int length)
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
try
{
encoder.encode(data, off, length, bOut);
}
catch (IOException e)
{
throw new RuntimeException("exception encoding Hex string: " + e);
}
return bOut.toByteArray();
}
/**
* Hex encode the byte data writing it to the given output stream.
*
* @return the number of bytes produced.
*/
public static int encode(
byte[] data,
OutputStream out)
throws IOException
{
return encoder.encode(data, 0, data.length, out);
}
/**
* Hex encode the byte data writing it to the given output stream.
*
* @return the number of bytes produced.
*/
public static int encode(
byte[] data,
int off,
int length,
OutputStream out)
throws IOException
{
return encoder.encode(data, 0, data.length, out);
}
/**
* decode the Hex encoded input data. It is assumed the input data is valid.
*
* @return a byte array representing the decoded data.
*/
public static byte[] decode(
byte[] data)
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
try
{
encoder.decode(data, 0, data.length, bOut);
}
catch (IOException e)
{
throw new RuntimeException("exception decoding Hex string: " + e);
}
return bOut.toByteArray();
}
/**
* decode the Hex encoded String data - whitespace will be ignored.
*
* @return a byte array representing the decoded data.
*/
public static byte[] decode(
String data)
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
try
{
encoder.decode(data, bOut);
}
catch (IOException e)
{
throw new RuntimeException("exception decoding Hex string: " + e);
}
return bOut.toByteArray();
}
/**
* decode the Hex encoded String data writing it to the given output stream,
* whitespace characters will be ignored.
*
* @return the number of bytes produced.
*/
public static int decode(
String data,
OutputStream out)
throws IOException
{
return encoder.decode(data, out);
}
}