sanogueralorenzo

class UsersPostsUseCaseTest {

    private lateinit var usersPostsUseCase: UsersPostsUseCase

    private val mockUserRepository: UserRepository = mock()
    private val mockPostRepository: PostRepository = mock()

    private val userList = listOf(user)
    private val postList = listOf(post)

sanogueralorenzo

@Singleton
class PostRepositoryImpl @Inject constructor(
    private val cacheDataSource: PostCacheDataSource,
    private val remoteDataSource: PostRemoteDataSource
) : PostRepository {

    override fun get(refresh: Boolean): Single<List<Post>> =
        when (refresh) {
            true -> remoteDataSource.get()
                .flatMap { cacheDataSource.set(it) }

sanogueralorenzo

@Module
abstract class RepositoryModule {

    @Binds
    abstract fun bindPostRepository(repository: PostRepositoryImpl): PostRepository
}

sanogueralorenzo

interface PostRepository {

    fun get(refresh: Boolean): Single<List<Post>>
}

sanogueralorenzo

data class CombinedUserPost(val user: User, val post: Post)

class UsersPostsUseCase @Inject constructor(
    private val userRepository: UserRepository,
    private val postRepository: PostRepository
) {

    fun get(refresh: Boolean): Single<List<CombinedUserPost>> =
        Single.zip(userRepository.get(refresh), postRepository.get(refresh),
            BiFunction { userList, postList -> map(userList, postList) })

sanogueralorenzo

# Android CircleCI 2.0 configuration file
#
# Check https://circleci.com/docs/2.0/language-android/ for more details
#
version: 2
jobs:
  build:
    working_directory: ~/Android-Kotlin-Clean-Architecture
    docker:
      - image: circleci/android:api-25-alpha

sanogueralorenzo

version: 2
jobs:
  build:
    working_directory: ~/code
    docker:
      - image: circleci/android:api-25-alpha
    environment:
      JVM_OPTS: -Xmx3200m
    steps:
      - checkout

sanogueralorenzo

class PostListActivity : AppCompatActivity() {

    @Inject
    lateinit var viewModelFactory: ViewModelProvider.Factory

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_post_list)
        getAppInjector().inject(this)
        val vm = ViewModelProviders.of(this, viewModelFactory)[PostListViewModel::class.java]

sanogueralorenzo

class PostListViewModel @Inject constructor(private val usersPostsUseCase: UsersPostsUseCase) :
    ViewModel() {

    val posts = MutableLiveData<Resource<List<PostItem>>>()
    private val compositeDisposable = CompositeDisposable()

    fun get(refresh: Boolean = false) =
        compositeDisposable.add(usersPostsUseCase.get(refresh)
            .doOnSubscribe { posts.setLoading() }
            .subscribeOn(Schedulers.io())

sanogueralorenzo

@Singleton
class ViewModelFactory @Inject constructor(private val viewModels: MutableMap<Class<out ViewModel>, Provider<ViewModel>>) : ViewModelProvider.Factory {

    override fun <T : ViewModel> create(modelClass: Class<T>): T = viewModels[modelClass]?.get() as T
}

@Target(AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER)
@kotlin.annotation.Retention(AnnotationRetention.RUNTIME)
@MapKey
internal annotation class ViewModelKey(val value: KClass<out ViewModel>)