com.cedarsoft.commons.ktor.SerializersMap.kt Maven / Gradle / Ivy

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package com.cedarsoft.commons.ktor

import kotlinx.serialization.ImplicitReflectionSerializer
import kotlinx.serialization.KSerializer
import kotlinx.serialization.internal.BooleanSerializer
import kotlinx.serialization.internal.ByteSerializer
import kotlinx.serialization.internal.CharSerializer
import kotlinx.serialization.internal.DoubleSerializer
import kotlinx.serialization.internal.FloatSerializer
import kotlinx.serialization.internal.IntSerializer
import kotlinx.serialization.internal.LongSerializer
import kotlinx.serialization.internal.ShortSerializer
import kotlinx.serialization.internal.StringSerializer
import kotlinx.serialization.internal.UnitSerializer
import kotlinx.serialization.serializer
import kotlin.reflect.KClass

/**
 * Contains serializers for their class
 *
 * @author Johannes Schneider ([[email protected]](mailto:[email protected]))
 */
class SerializersMap {
  @Suppress("UNCHECKED_CAST")
  private val serializers = mutableMapOf(
    Unit::class as KClass to UnitSerializer as KSerializer,
    Boolean::class as KClass to BooleanSerializer as KSerializer,
    Byte::class as KClass to ByteSerializer as KSerializer,
    Short::class as KClass to ShortSerializer as KSerializer,
    Int::class as KClass to IntSerializer as KSerializer,
    Long::class as KClass to LongSerializer as KSerializer,
    Float::class as KClass to FloatSerializer as KSerializer,
    Double::class as KClass to DoubleSerializer as KSerializer,
    Char::class as KClass to CharSerializer as KSerializer,
    String::class as KClass to StringSerializer as KSerializer
  )


  fun  register(type: KClass, serializer: KSerializer) {
    @Suppress("UNCHECKED_CAST")
    serializers[type as KClass] = serializer as KSerializer
  }

  inline fun  register(serializer: KSerializer) {
    register(T::class, serializer)
  }

  @ImplicitReflectionSerializer
  inline fun  register() {
    register(T::class.serializer())
  }

  fun  getSerializerNullable(type: KClass): KSerializer? {
    @Suppress("UNCHECKED_CAST")
    return serializers[type as KClass] as KSerializer?
  }

  fun  getSerializer(type: KClass): KSerializer {
    return getSerializerNullable(type) ?: throw IllegalStateException("No serializer found for $type")
  }
}