Source code

001package org.apache.archiva.checksum;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 *   http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import javax.xml.bind.DatatypeConverter;
023
024/**
025 * Hex - simple hex conversions. 
026 *
027 *
028 */
029public class Hex
030{
031
032    public static String encode( byte[] data )
033    {
034        try
035        {
036            return DatatypeConverter.printHexBinary( data ).trim( ).toLowerCase( );
037        } catch (IllegalArgumentException e) {
038            return "";
039        }
040    }
041
042    public static String encode( String raw )
043    {
044        return encode( raw.getBytes() );
045    }
046
047    public static byte[] decode( String data ) {
048        try
049        {
050            return DatatypeConverter.parseHexBinary( data.trim( ) );
051        } catch (IllegalArgumentException e) {
052            return new byte[0];
053        }
054    }
055}