It is an extension for the Chrome browser to dissect and generate TUID. You can install it from Chrome Store.
TUID stands for Time based unique identifier. TUID is a 64 bit long unsigned integer value.
It is generated using epoch, and some random value. It is constructed using three segments; epoch, serverid, and a counter value. You can add or remove different bit segments.
Following is the sample code (untested) to generate TUID in Java.
//You can change the distribution of number of bits between segaments
static short counter = 1;
static byte serverid = 50;
public long generateTuid(){
long epoch = System.currentTimeMillis();
//Increament counter between tuid generation call to avoid duplicates
counter++;
if(counter >= 1022){
counter = 1;
}
long tuid = ( epoch << 18) + (counter << 10) + sreverid;
return tuid;
}Based on the above example, the bit segments distribution looks like following.
| Epoch | Counter | Server id |
|---|---|---|
| 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 00 | 00 0000 0000 | 0000 0000 |
- Max Epoch 2^46 = 70,368,744,177,664 = GMT: Sun, 24 Nov 4199 01:22:57.664
- Max Counter 2^10 = 1,024
- Max Server id 2^8 = 256
This extension only works with specific bit segments.
Epoch (46 bits) + Counter (10 bits) + Server id (8 bits) == Tuid (64 bites)
This project uses