Returns a hexadecimal representation of the given byte array.
/*
* 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.
*
*/
/**
* ByteUtilities.java - Byte manipulation functions.
*
* @author <a href="http://mina.apache.org">Apache MINA Project</a>
* @since MINA 2.0.0-M3
*/
public class Util{
/**
* Returns a hexadecimal representation of the given byte array.
*
* @param bytes the array to output to an hex string
* @return the hex representation as a string
*/
public static String asHex(byte[] bytes) {
return asHex(bytes, null);
}
/**
* Returns a hexadecimal representation of the given byte array.
*
* @param bytes the array to output to an hex string
* @param separator the separator to use between each byte in the output
* string. If null no char is inserted between each byte value.
* @return the hex representation as a string
*/
public static String asHex(byte[] bytes, String separator) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
String code = Integer.toHexString(bytes[i] & 0xFF);
if ((bytes[i] & 0xFF) < 16) {
sb.append('0');
}
sb.append(code);
if (separator != null && i < bytes.length - 1) {
sb.append(separator);
}
}
return sb.toString();
}
}
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