Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: LGPL 

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.UUID;

public class Main {
    public static final String BASE_UUID_START = "0000";
    public static final String BASE_UUID_END = "-0000-1000-8000-00805f9b34fb";

    public static String bytesToUuid(byte[] bytes) {
        ByteBuffer bb = ByteBuffer.wrap(bytes);
        bb.order(ByteOrder.LITTLE_ENDIAN);

        long lsb = bb.getLong();
        long msb = bb.getLong();
        UUID uuid = new UUID(msb, lsb);
        return uuidToString(uuid);
    }

    public static String uuidToString(UUID uuid) {
        String uuidString = uuid.toString();

        if (uuidString.startsWith(BASE_UUID_START) && uuidString.endsWith(BASE_UUID_END)) {
            return uuidString.substring(4, 8);
        }

        return uuidString;
    }
}