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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.ivy.util;
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* Simple encoder of byte arrays into String array using only the hexadecimal alphabet
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public class HexEncoder {
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private static final char[] ALPHABET = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a',
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'b', 'c', 'd', 'e', 'f'};
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public static String encode(byte[] packet) {
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StringBuffer chars = new StringBuffer(16);
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for (int i = 0; i < packet.length; i++) {
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int highBits = (packet[i] & 0xF0) >> 4;
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int lowBits = packet[i] & 0x0F;
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chars.append(ALPHABET[highBits]);
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chars.append(ALPHABET[lowBits]);
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return chars.toString();