org.calrissian.accumulorecipes.blobstore.support.BlobUtils.java Source code

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Here is the source code for org.calrissian.accumulorecipes.blobstore.support.BlobUtils.java

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/*
 * 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.calrissian.accumulorecipes.blobstore.support;

import org.apache.commons.codec.binary.Hex;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class BlobUtils {

    public static Logger logger = LoggerFactory.getLogger(BlobUtils.class);

    public static String hashBytes(byte[] bytes) {

        try {

            final MessageDigest messageDigest = MessageDigest.getInstance("MD5");
            messageDigest.reset();
            messageDigest.update(bytes);
            final byte[] resultByte = messageDigest.digest();

            return new String(Hex.encodeHex(resultByte));

        } catch (NoSuchAlgorithmException e) {
            logger.error("There was an exception trying to initialize the MD5 digest");
        }

        return null;

    }
}