Java ByteBuffer Read readObject(ByteBuffer byteBuffer)

Description

read Object

License

Apache License

Declaration

public static Serializable readObject(ByteBuffer byteBuffer) throws IOException, ClassNotFoundException 

Method Source Code

//package com.java2s;
/*/*www . j a v  a 2 s .c o  m*/
 * Copyright (c) 2017-2030, Sven Augustus (svenaugustus@outlook.com).
 *
 * Licensed 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.
 */

import java.io.BufferedInputStream;

import java.io.ByteArrayInputStream;

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

import java.io.Serializable;
import java.nio.ByteBuffer;

public class Main {

    public static Serializable readObject(ByteBuffer byteBuffer) throws IOException, ClassNotFoundException {
        ByteArrayInputStream bis = null;
        ObjectInputStream ois = null;
        Serializable object = null;
        try {
            byte[] bytes = readToBytes(byteBuffer);
            //System.out.println(printByteArray(bytes));
            bis = new ByteArrayInputStream(bytes);
            ois = new ObjectInputStream(new BufferedInputStream(bis));
            object = (Serializable) ois.readObject();
        } finally {
            if (ois != null) {
                ois.close();
            }
        }
        return object;
    }

    public static byte[] readToBytes(ByteBuffer byteBuffer) {
        byteBuffer.flip();
        // Retrieve bytes between the position and limit
        // (see Putting Bytes into a ByteBuffer)
        byte[] bytes = new byte[byteBuffer.remaining()];
        // transfer bytes from this buffer into the given destination array
        byteBuffer.get(bytes, 0, bytes.length);
        byteBuffer.clear();
        return bytes;
    }
}

Related

1. readLen(ByteBuffer dup, int nls)
2. readLink(ByteBuffer bb)
3. readLink(ByteBuffer bb)
4. readNewLine(ByteBuffer buf)
5. readNullTerminatedString(ByteBuffer buf)
6. readReal(ByteBuffer bb)
7. readResBit15(ByteBuffer fromBuffer)
8. readShortLE(ByteBuffer buf, int i)
9. readShortLength(ByteBuffer bb)