class Main {
public static void main(String[] args) {
System.out.println(new Uniqid().uniqid(new String("22"), true));
}
}
import java.security.SecureRandom;
import java.nio.ByteBuffer;
public class Uniqid {
/***
* Copy of uniqid in php http://php.net/manual/fr/function.uniqid.php
* @param prefix
* @param more_entropy
* @return
*/
public String uniqid(String prefix,boolean more_entropy)
{
long time = System.currentTimeMillis();
//String uniqid = String.format("%fd%05f", Math.floor(time),(time-Math.floor(time))*1000000);
//uniqid = uniqid.substring(0, 13);
String uniqid = "";
if(!more_entropy)
{
uniqid = String.format("%s%08x%05x", prefix, time/1000, time);
}else
{
SecureRandom sec = new SecureRandom();
byte[] sbuf = sec.generateSeed(8);
ByteBuffer bb = ByteBuffer.wrap(sbuf);
uniqid = String.format("%s%08x%05x", prefix, time/1000, time);
uniqid += "." + String.format("%.8s", ""+bb.getLong()*-1);
}
return uniqid ;
}
}
