KMapper

This is a Mapper Libraly like a ModelMapper for Kotlin.
You can call KFunction(e.g. method reference) from Object.

// before
val dst = Dst(
  param1 = src.param1,
  param2 = src.param2,
  param3 = src.param3,
  param4 = src.param4,
  param5 = src.param5,
  ...
)

// after
val newInstance = KMapper(::Dst).map(src)

How to use

Published on JitPack.
Please see here for the introduction method.

Usages

From multiple resources

class Src1(val arg1: String, val arg2: String)
val src2: Map<String, Any?> = mapOf("arg3" to 1, "arg4" to 1.0)
val src3: Pair<String, Any?> = "arg5" to null

class Dst(
    val arg1: String,
    val arg2: String,
    val arg3: Int,
    val arg4: Double,
    val arg5: String?
)

val newInstance = KMapper(::Dst).map(src1, src2, src3)

Set alias on map

for getter

class Src(@KGetterAlias("aliased") val str: String)

class Dst(val aliased: String)

val newInstance = KMapper(::Dst).map(src)

for parameter

class Src(val str: String)

class Dst(@param:KPropertyAlias("str") private val _src: String) {
  val src = _src.someArrangement
}

val newInstance = KMapper(::Dst).map(src)

Convert parameter name

val srcMap = mapOf("snake_case" to "SnakeCase")

class Dst(val snakeCase: String)

val dst: Dst = KMapper(::DataClass) { camelToSnake(it) }.map(src)

Map param to another class

class ConverterClass @KConverter constructor(val arg: String) {
  companion object {
    @KConverter
    fun fromInt(arg: Int): ConverterClass {
      return ConverterClass(arg.toString)
    }
  }
}

class Src(val arg1: String, val arg2: Int)

class Dst(val arg1: ConverterClass, val arg2: ConverterClass)

val newInstance = KMapper(::Dst).map(src)