SerializationUtils.java

package io.blobkeeper.common.util;

/*
 * Copyright (C) 2015 by Denis M. Gabaydulin
 *
 * 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.
 *
 *
 * Came from Spring framework
 */

import java.io.*;

public abstract class SerializationUtils {

    /**
     * Serialize the given object to a byte array.
     *
     * @param object the object to serialize
     * @return an array of bytes representing the object in a portable fashion
     */
    public static byte[] serialize(Object object) {
        if (object == null) {
            return null;
        }
        ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
        try {
            ObjectOutputStream oos = new ObjectOutputStream(baos);
            oos.writeObject(object);
            oos.flush();
        } catch (IOException ex) {
            throw new IllegalArgumentException("Failed to serialize object of type: " + object.getClass(), ex);
        }
        return baos.toByteArray();
    }

    /**
     * Deserialize the byte array into an object.
     *
     * @param bytes a serialized object
     * @return the result of deserializing the bytes
     */
    public static Object deserialize(byte[] bytes) {
        if (bytes == null) {
            return null;
        }
        try {
            ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(bytes));
            return ois.readObject();
        } catch (IOException ex) {
            throw new IllegalArgumentException("Failed to deserialize object", ex);
        } catch (ClassNotFoundException ex) {
            throw new IllegalStateException("Failed to deserialize object type", ex);
        }
    }

}