| /* |
| * 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.xmlgraphics.util; |
| |
| /** |
| * Provides helper functions for converting hexadecimal strings. |
| */ |
| public class HexUtil { |
| |
| private static final char[] DIGITS = |
| {'0', '1', '2', '3', '4', '5', '6', '7', |
| '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'}; |
| |
| /** |
| * Converts a byte array to a hexadecimal String |
| * @param data the data to encode |
| * @return String the resulting String |
| */ |
| public static final String toHex(byte[] data) { |
| final StringBuffer sb = new StringBuffer(data.length * 2); |
| for (int i = 0; i < data.length; i++) { |
| sb.append(DIGITS[(data[i] >>> 4) & 0x0F]); |
| sb.append(DIGITS[data[i] & 0x0F]); |
| } |
| return sb.toString(); |
| } |
| |
| } |