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package org.jetbrains.dokka.base.templating
import com.fasterxml.jackson.core.JsonGenerator
import com.fasterxml.jackson.databind.DeserializationFeature
import com.fasterxml.jackson.databind.SerializerProvider
import com.fasterxml.jackson.databind.module.SimpleModule
import com.fasterxml.jackson.databind.ser.std.StdScalarSerializer
import com.fasterxml.jackson.databind.type.TypeFactory
import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
import com.fasterxml.jackson.module.kotlin.jacksonTypeRef
import org.jetbrains.dokka.base.DokkaBase
import java.io.File
// THIS IS COPIED FROM BASE SINCE IT NEEDS TO BE INSTANTIATED ON THE SAME CLASS LOADER AS PLUGINS
private val objectMapper = run {
val module = SimpleModule().apply {
addSerializer(FileSerializer)
}
jacksonObjectMapper()
.apply {
typeFactory = PluginTypeFactory()
}
.registerModule(module)
.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
}
@PublishedApi
internal class TypeReference<T> private constructor(
internal val jackson: com.fasterxml.jackson.core.type.TypeReference<T>
) {
companion object {
internal inline operator fun <reified T> invoke(): TypeReference<T> = TypeReference(jacksonTypeRef())
}
}
fun toJsonString(value: Any): String = objectMapper.writeValueAsString(value)
inline fun <reified T : Any> parseJson(json: String): T = parseJson(json, TypeReference())
@PublishedApi
internal fun <T : Any> parseJson(json: String, typeReference: TypeReference<T>): T =
objectMapper.readValue(json, typeReference.jackson)
private object FileSerializer : StdScalarSerializer<File>(File::class.java) {
override fun serialize(value: File, g: JsonGenerator, provider: SerializerProvider) {
g.writeString(value.path)
}
}
@Suppress("DEPRECATION") // for TypeFactory constructor, no way to use non-deprecated one, it's essentially identical
private class PluginTypeFactory: TypeFactory(null) {
override fun findClass(className: String): Class<out Any>? =
Class.forName(className, true, DokkaBase::class.java.classLoader) ?: super.findClass(className)
}
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