com.criteo.publisher.bid

Class UniqueIdGenerator

java.lang.Object

com.criteo.publisher.bid.UniqueIdGenerator

public class UniqueIdGenerator
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
UniqueIdGenerator(Clock clock)

Method Summary

Modifier and Type	Method and Description
java.lang.String	generateId() Generate a new unique ID suitable for Criteo backends

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UniqueIdGenerator

public UniqueIdGenerator(@NonNull
                         Clock clock)

Method Detail

generateId

@NonNull
public java.lang.String generateId()

Generate a new unique ID suitable for Criteo backends

The output represents a 32 bytes unique ID formatted into hexadecimal. The 8 first (MSB) bytes represent the UNIX timestamp in seconds. The 24 following ones are random from a cryptographic random generator. This ensures keeping a very low probability of collision.

At SDK level, a simpler UUID.randomUUID() would be sufficient. But those ids are expected to be sent to a Criteo backend and should then be (almost) unique at Criteo level and scale with it.

This is based on an algorithm already done in C# and Scala to generate impression id.

Generation IDs are suitable for:

• Impression ID

Returns:

a new ID

See Also:

CDB ImpressionIdHelper, Arbitrage ArtbitrageId