Java ByteBuffer from getByteBufferArray(ByteBuffer byteBuffer)

Description

get Byte Buffer Array

License

Open Source License

Declaration

public static byte[] getByteBufferArray(ByteBuffer byteBuffer) 

Method Source Code

//package com.java2s;
/*//  w  ww. j  a  va  2  s.c  o m
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import java.nio.ByteBuffer;

public class Main {
    public static byte[] getByteBufferArray(ByteBuffer byteBuffer) {

        if (byteBuffer.hasArray()) {
            byte[] buf = new byte[byteBuffer.limit()];
            System.arraycopy(byteBuffer.array(), byteBuffer.arrayOffset(),
                    buf, 0, buf.length);
            // NOTE: Cannot simply do return byteBuffer.array() since byteBuffer
            // could be a view buffer / sliced ByteBuffer. View buffers /
            // sliced ByteBuffer will return the entired backed array.
            // Not a byte array beginning at view buffer position 0.
            return buf;
        }

        byte[] buf = new byte[byteBuffer.limit()];
        int pos = byteBuffer.position();
        byteBuffer.position(0);
        byteBuffer.get(buf);
        byteBuffer.position(pos);

        return buf;
    }
}

Related

1. getByteBuffer(final String string, final Charset charset)
2. getByteBuffer(int size)
3. getByteBuffer(Object obj)
4. getByteBuffer(String base64)
5. getByteBuffer(String filePath, int start, long size)
6. getByteBufferAsString(ByteBuffer buff)
7. getByteBufferByString(String message)
8. getByteBufferFromBytes(byte[] data)
9. getByteBufferFromInt(int value)