SerilizationUtils.java

/*******************************************************************************
 * Copyright (c) 2014 BREDEX GmbH.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     BREDEX GmbH - initial API and implementation and/or initial documentation
 *******************************************************************************/
package org.eclipse.jubula.client.internal.utils;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

import org.apache.commons.codec.binary.Base64;


/**
 * Utility class for encoding/decoding serializable objects into/from Base64 Strings
 * @author BREDEX GmbH
 * @created Oct 09, 2014
 */
public class SerilizationUtils {
    
    /** private constructor */
    private SerilizationUtils() {
        // utility class
    }
    

    /**
     * Encodes a serializable object to a Base64 string.
     * 
     * @param serializableObject
     *            the serializable object
     * @return a String representation of the serializable
     */
    public static String encode(Serializable serializableObject)
            throws IOException {
        ByteArrayOutputStream baos = null;
        ObjectOutputStream oos = null;
        String encoded = null;

        try {
            baos = new ByteArrayOutputStream();
            oos = new ObjectOutputStream(baos);
            oos.writeObject(serializableObject);
            encoded = new String(Base64.encodeBase64(baos.toByteArray()));
        } finally {
            if (oos != null) {
                oos.close();
            }
        }
        return encoded;
    }

    /**
     * Decodes a serializable from a base64 encoded string.
     * 
     * @param encodedString
     *            Base64 encoded String
     * @return the translated object
     */
    public static Object decode(String encodedString) throws IOException,
            ClassNotFoundException {
        byte[] data = Base64.decodeBase64(encodedString);
        ObjectInputStream ois = null;
        Object decodedObject = null;
        try {
            ois = new ObjectInputStream(new ByteArrayInputStream(data));
            decodedObject = ois.readObject();
        } finally {
            if (ois != null) {
                ois.close();
            }
        }
        return decodedObject;
    }
}