mercury-1.0.0-alpha-2/mercury-crypto/mercury-crypto-basic/src/main/java/org/apache/maven/mercury/crypto/basic/ChecksumCalculator.java

/**
 * 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.maven.mercury.crypto.basic;



public class ChecksumCalculator
{
    private static final byte[] __HEX_DIGITS = "0123456789abcdef".getBytes();

    public static String encodeToAsciiHex( byte[] bytes )
    {
        int l = bytes.length;

        byte[] raw = new byte[l * 2];

        for ( int i = 0, j = 0; i < l; i++ )
        {
            raw[j++] = __HEX_DIGITS[ ( 0xF0 & bytes[i] ) >>> 4 ];
            raw[j++] = __HEX_DIGITS[ 0x0F & bytes[i] ];
        }

        return new String( raw );
    }
}