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shardcake-serialization-kryo

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package com.devsisters.shardcake

import com.devsisters.shardcake.interfaces.Serialization
import com.typesafe.config.{ Config, ConfigFactory }
import io.altoo.serialization.kryo.scala.ScalaKryoSerializer
import zio.{ Chunk, Task, ZIO, ZLayer }

object KryoSerialization {

  /**
   * A layer that returns a serialization implementation using the Kryo library.
   */
  val live: ZLayer[Any, Throwable, Serialization] =
    ZLayer(ZIO.attempt(ConfigFactory.defaultReference()).flatMap(make))

  /**
   * A layer that returns a serialization implementation using the Kryo library, taking a Config object.
   * See https://github.com/altoo-ag/scala-kryo-serialization for more details about configuration.
   */
  def liveWithConfig(config: Config): ZLayer[Any, Throwable, Serialization] =
    ZLayer(make(config))

  private def make(config: Config): Task[Serialization] =
    ZIO.attempt {
      new ScalaKryoSerializer(config, getClass.getClassLoader)
    }.map(serializer =>
      new Serialization {
        def encode(message: Any): Task[Array[Byte]]                              = ZIO.fromTry(serializer.serialize(message))
        def decode[A](bytes: Array[Byte]): Task[A]                               = ZIO.fromTry(serializer.deserialize[A](bytes))
        override def encodeChunk(messages: Chunk[Any]): Task[Chunk[Array[Byte]]] =
          ZIO.attempt(messages.map(serializer.serialize(_).get))
        override def decodeChunk[A](bytes: Chunk[Array[Byte]]): Task[Chunk[A]]   =
          ZIO.attempt(bytes.map(serializer.deserialize[A](_).get))
      }
    )
}