zio.kafka.consumer.diagnostics.Diagnostics.scala Maven / Gradle / Ivy

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package zio.kafka.consumer.diagnostics

import zio.{ Queue, Scope, UIO, ZIO }

trait Diagnostics {
  def emit(event: => DiagnosticEvent): UIO[Unit]
}
object Diagnostics {
  case object NoOp extends Diagnostics {
    override def emit(event: => DiagnosticEvent): UIO[Unit] = ZIO.unit
  }

  final case class SlidingQueue private (queue: Queue[DiagnosticEvent]) extends Diagnostics {
    override def emit(event: => DiagnosticEvent): UIO[Unit] = queue.offer(event).unit
  }
  object SlidingQueue {
    def make(queueSize: Int = 16): ZIO[Scope, Nothing, SlidingQueue] =
      ZIO.acquireRelease(Queue.sliding[DiagnosticEvent](queueSize))(_.shutdown).map(SlidingQueue(_))
  }
}