Java ByteBuffer Get getObject(ByteBuffer byteBuffer)

Description

get Object

License

Open Source License

Declaration

public static Object getObject(ByteBuffer byteBuffer) throws IOException, ClassNotFoundException 

Method Source Code

//package com.java2s;
/*/*from  ww  w.ja  v  a2  s.com*/
 * Copyright (c) 2007, 2011-2013 Eike Stepper (Berlin, Germany) and others.
 * 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:
 *    Eike Stepper - initial API and implementation
 */

import java.io.ByteArrayInputStream;

import java.io.IOException;
import java.io.ObjectInputStream;

import java.nio.ByteBuffer;

public class Main {
    private static final byte TRUE = (byte) 1;

    public static Object getObject(ByteBuffer byteBuffer) throws IOException, ClassNotFoundException {
        boolean nonNull = byteBuffer.get() == TRUE;
        if (nonNull) {
            byte[] array = getByteArray(byteBuffer);
            ByteArrayInputStream bais = new ByteArrayInputStream(array);
            ObjectInputStream stream = new ObjectInputStream(bais);
            return stream.readObject();
        }

        return null;
    }

    public static byte[] getByteArray(ByteBuffer byteBuffer) {
        short length = byteBuffer.getShort();
        byte[] array = new byte[length];
        if (length != 0) {
            byteBuffer.get(array);
        }

        return array;
    }
}

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