| /* |
| * 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.geronimo.mail.util; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| 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); |
| } |
| } |