Java ByteBuffer to Long Array getLong(ByteBuffer buffer)

Description

get Long

License

Open Source License

Declaration

public static long getLong(ByteBuffer buffer) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.nio.ByteBuffer;

public class Main {
    public static long getLong(ByteBuffer buffer) {

        assert (buffer.capacity() - buffer.position() >= 8);

        long[] data = new long[8];

        data[7] = buffer.get();//  w  w w  .ja  v a 2 s .c  om
        data[6] = buffer.get();
        data[5] = buffer.get();
        data[4] = buffer.get();
        data[3] = buffer.get();
        data[2] = buffer.get();
        data[1] = buffer.get();
        data[0] = buffer.get();

        return ((data[0] << 56) & 0xff00000000000000l) | ((data[1] << 48) & 0x00ff000000000000l)
                | ((data[2] << 40) & 0x0000ff0000000000l) | ((data[3] << 32) & 0x000000ff00000000l)
                | ((data[4] << 24) & 0x00000000ff000000l) | ((data[5] << 16) & 0x0000000000ff0000l)
                | ((data[6] << 8) & 0x000000000000ff00l) | (data[7] & 0x00000000000000ffl);
    }
}

Related

1. deserializeLongArray(ByteBuffer buffer)
2. getLong(ByteBuffer byteBuffer, int longIndex)
3. getLong(ByteBuffer in)
4. getLong(ByteBuffer longCalculator, byte[] bytes)
5. getLongB(ByteBuffer bb, int index)