Resolve dependencies

Author: Johan Vergeer

mapstruct-kotlin-gradle/build.gradle.kts

@@ -13,8 +13,18 @@ repositories {
 
 dependencies {
     compile(kotlin("stdlib-jdk8"))
+    compile("org.mapstruct:mapstruct-jdk8:1.2.0.Final")
+    kapt("org.mapstruct:mapstruct-processor:1.2.0.Final")
+
+    testCompile("org.junit.jupiter:junit-jupiter-api:5.3.1")
+    testCompile("org.junit.jupiter:junit-jupiter-engine:5.3.1")
+    testCompile("org.assertj:assertj-core:3.11.1")
 }
 
 tasks.withType<KotlinCompile> {
     kotlinOptions.jvmTarget = "1.8"
+}
+
+val test by tasks.getting(Test::class) {
+    useJUnitPlatform { }
 }

mapstruct-kotlin-gradle/src/main/kotlin/org/mapstruct/example/kotlin/Main.kt

@@ -0,0 +1,20 @@
+package org.mapstruct.example.kotlin
+
+import org.mapstruct.example.kotlin.converter.PersonConverter
+import org.mapstruct.example.kotlin.model.Person
+import org.mapstruct.factory.Mappers
+import java.time.LocalDate
+
+fun main(args: Array<String>) {
+
+    val converter = Mappers.getMapper(PersonConverter::class.java) // or PersonConverterImpl()
+
+    val person = Person("Samuel", "Jackson", "0123 334466", LocalDate.of(1948, 12, 21))
+
+    val personDto = converter.convertToDto(person)
+    println(personDto)
+
+    val personModel = converter.convertToModel(personDto)
+    println(personModel)
+
+}

mapstruct-kotlin-gradle/src/main/kotlin/org/mapstruct/example/kotlin/converter/PersonConverter.kt

@@ -0,0 +1,18 @@
+package org.mapstruct.example.kotlin.converter
+
+import org.mapstruct.InheritInverseConfiguration
+import org.mapstruct.Mapper
+import org.mapstruct.Mapping
+import org.mapstruct.example.kotlin.dto.PersonDto
+import org.mapstruct.example.kotlin.model.Person
+
+@Mapper
+interface PersonConverter {
+
+    @Mapping(source = "phoneNumber", target = "phone")
+    fun convertToDto(person: Person): PersonDto
+
+    @InheritInverseConfiguration
+    fun convertToModel(personDto: PersonDto): Person
+
+}

mapstruct-kotlin-gradle/src/main/kotlin/org/mapstruct/example/kotlin/dto/PersonDto.kt

@@ -0,0 +1,10 @@
+package org.mapstruct.example.kotlin.dto
+
+import java.time.LocalDate
+
+data class PersonDto(var firstName: String?, var lastName: String?, var phone: String?, var birthdate: LocalDate?) {
+
+    // Necessary for MapStruct
+    constructor() : this(null, null, null, null)
+
+}

mapstruct-kotlin-gradle/src/main/kotlin/org/mapstruct/example/kotlin/model/Person.kt

@@ -0,0 +1,10 @@
+package org.mapstruct.example.kotlin.model
+
+import java.time.LocalDate
+
+data class Person(var firstName: String?, var lastName: String?, var phoneNumber: String?, var birthdate: LocalDate?) {
+
+    // Necessary for MapStruct
+    constructor() : this(null, null, null, null)
+
+}

mapstruct-kotlin-gradle/src/test/kotlin/org/mapstruct/example/kotlin/converter/PersonConverterTest.kt

@@ -0,0 +1,40 @@
+package org.mapstruct.example.kotlin.converter
+
+import org.mapstruct.example.kotlin.dto.PersonDto
+import org.mapstruct.example.kotlin.model.Person
+
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Test
+import org.mapstruct.factory.Mappers
+import java.time.LocalDate
+
+class PersonConverterTest {
+
+    @Test
+    fun testConvertToDto() {
+        val converter = Mappers.getMapper(PersonConverter::class.java)
+
+        val person = Person("Samuel", "Jackson", "0123 334466", LocalDate.of(1948, 12, 21))
+
+        val personDto = converter.convertToDto(person)
+        assertThat(personDto).isNotNull
+        assertThat(personDto.firstName).isEqualTo("Samuel")
+        assertThat(personDto.lastName).isEqualTo("Jackson")
+        assertThat(personDto.phone).isEqualTo("0123 334466")
+        assertThat(personDto.birthdate).isEqualTo(LocalDate.of(1948, 12, 21))
+    }
+
+    @Test
+    fun testConvertToModel() {
+        val converter = Mappers.getMapper(PersonConverter::class.java)
+
+        val personDto = PersonDto("Samuel", "Jackson", "0123 334466", LocalDate.of(1948, 12, 21))
+
+        val person = converter.convertToModel(personDto)
+        assertThat(person).isNotNull()
+        assertThat(person.firstName).isEqualTo("Samuel")
+        assertThat(person.lastName).isEqualTo("Jackson")
+        assertThat(person.phoneNumber).isEqualTo("0123 334466")
+        assertThat(person.birthdate).isEqualTo(LocalDate.of(1948, 12, 21))
+    }
+}