52 lines
1.7 KiB
Kotlin
52 lines
1.7 KiB
Kotlin
@file:JvmMultifileClass
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@file:JvmName("DomainSerializers")
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package org.moire.ultrasonic.cache.serializers
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import com.twitter.serial.serializer.CollectionSerializers
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import com.twitter.serial.serializer.ObjectSerializer
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import com.twitter.serial.serializer.SerializationContext
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import com.twitter.serial.stream.SerializerInput
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import com.twitter.serial.stream.SerializerOutput
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import org.moire.ultrasonic.cache.DomainEntitySerializer
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import org.moire.ultrasonic.domain.MusicFolder
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private const val SERIALIZATION_VERSION = 1
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private val musicFolderSerializer = object : ObjectSerializer<MusicFolder>(SERIALIZATION_VERSION) {
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override fun serializeObject(
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context: SerializationContext,
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output: SerializerOutput<out SerializerOutput<*>>,
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item: MusicFolder
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) {
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output.writeString(item.id).writeString(item.name)
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}
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@Suppress("ReturnCount")
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override fun deserializeObject(
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context: SerializationContext,
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input: SerializerInput,
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versionNumber: Int
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): MusicFolder? {
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if (versionNumber != SERIALIZATION_VERSION) return null
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val id = input.readString() ?: return null
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val name = input.readString() ?: return null
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return MusicFolder(id, name)
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}
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}
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/**
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* Serializer/deserializer for [MusicFolder] domain entity.
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*/
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fun getMusicFolderSerializer(): DomainEntitySerializer<MusicFolder> = musicFolderSerializer
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private val musicFolderListSerializer =
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CollectionSerializers.getListSerializer(musicFolderSerializer)
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/**
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* Serializer/deserializer for [List] of [MusicFolder] items.
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*/
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fun getMusicFolderListSerializer(): DomainEntitySerializer<List<MusicFolder>> =
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musicFolderListSerializer
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