rhttpc.transport.json4s.IndexedSeqSerializer.scala Maven / Gradle / Ivy
/*
* Copyright 2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package rhttpc.transport.json4s
import org.json4s.JsonAST.JArray
import org.json4s._
import org.json4s.reflect.TypeInfo
object IndexedSeqSerializer extends Serializer[IndexedSeq[_]] {
def deserialize(implicit format: Formats) = {
case (TypeInfo(clazz, optionalParamType), json) if classOf[IndexedSeq[_]].isAssignableFrom(clazz) =>
json match {
case JArray(elems) =>
val paramType = optionalParamType.getOrElse(throw new MappingException("Parametrized type not known"))
val elemTypeInfo = TypeInfo(paramType.getActualTypeArguments()(0).asInstanceOf[Class[_]], None)
elems.map(Extraction.extract(_, elemTypeInfo)).toIndexedSeq
case other =>
throw new MappingException(s"Can't convert $other to IndexedSeq")
}
}
def serialize(implicit format: Formats) = {
case seq: IndexedSeq[_] => JArray(seq.map(Extraction.decompose).toList)
}
}