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Adds @JsonProperty getter support in case classes #69

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Adds @JsonProperty getter support in case classes #69

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9 changes: 7 additions & 2 deletions src/main/scala/com/codahale/jerkson/ser/CaseClassSerializer.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ import java.lang.reflect.Modifier
import com.codahale.jerkson.JsonSnakeCase
import com.codahale.jerkson.Util._
import com.fasterxml.jackson.core.JsonGenerator
import com.fasterxml.jackson.annotation.{JsonIgnore, JsonIgnoreProperties}
import com.fasterxml.jackson.annotation.{JsonIgnore, JsonIgnoreProperties, JsonProperty}
import com.fasterxml.jackson.databind.{SerializerProvider, JsonSerializer}

class CaseClassSerializer[A <: Product](klass: Class[_]) extends JsonSerializer[A] {
Expand All @@ -23,12 +23,17 @@ class CaseClassSerializer[A <: Product](klass: Class[_]) extends JsonSerializer[
private val methods = klass.getDeclaredMethods
.filter { _.getParameterTypes.isEmpty }
.map { m => m.getName -> m }.toMap

private val jsonGetters = methods
.filter { _._2.getAnnotation(classOf[JsonProperty]) != null }
.map { m => m._2.getAnnotation(classOf[JsonProperty]).value -> m._2 }.toMap

def serialize(value: A, json: JsonGenerator, provider: SerializerProvider) {
json.writeStartObject()
for (field <- nonIgnoredFields) {
val methodOpt = methods.get(field.getName)
val fieldValue: Object = methodOpt.map { _.invoke(value) }.getOrElse(field.get(value))
val getterOpt = jsonGetters.get(field.getName)
val fieldValue: Object = getterOpt.map { _.invoke(value) }.getOrElse(methodOpt.map { _.invoke(value) }.getOrElse(field.get(value)))
if (fieldValue != None) {
val fieldName = methodOpt.map { _.getName }.getOrElse(field.getName)
provider.defaultSerializeField(if (isSnakeCase) snakeCase(fieldName) else fieldName, fieldValue, json)
Expand Down