im.actor.util.misc.IdUtils.scala Maven / Gradle / Ivy

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package im.actor.util.misc

import im.actor.util.ThreadLocalSecureRandom

object IdUtils {
  def nextIntId(): Int = nextIntId(ThreadLocalSecureRandom.current())

  def nextIntId(rnd: ThreadLocalSecureRandom): Int = {
    val min = 1000
    min + rnd.nextInt(Int.MaxValue - min + 1)
  }

  def nextLongId(): Long = ThreadLocalSecureRandom.current().nextLong()

  def nextAuthId(): Long = nextAuthId(ThreadLocalSecureRandom.current())

  def nextAuthId(rng: ThreadLocalSecureRandom): Long = {
    val candidate = rng.nextLong()
    if (candidate == 0L) nextAuthId(rng) else candidate
  }
}