@Nonnull
public Observable<Boolean> progressObservable() {
return ResponseOrError.combineProgressObservable(
ImmutableList.of(
ResponseOrError.transform(titleObservable),
ResponseOrError.transform(itemsObservable)));
}
@Nonnull
public Observable<Throwable> errorObservable() {
return ResponseOrError.combineErrorsObservable(
ImmutableList.of(
ResponseOrError.transform(titleObservable),
ResponseOrError.transform(itemsObservable)))
.distinctUntilChanged();
}
@Nonnull
private Observable<ResponseOrError<PostsResponse>> postsObservable2() {
return this.postsDao
.postsIdsObservable()
.compose(
ResponseOrError.switchMap(
new Func1<PostsIdsResponse, Observable<ResponseOrError<PostsResponse>>>() {
@Override
public Observable<ResponseOrError<PostsResponse>> call(final PostsIdsResponse o) {
return Observable.from(o.items())
.map(
new Func1<PostId, Observable<ResponseOrError<Post>>>() {
@Override
public Observable<ResponseOrError<Post>> call(PostId postId) {
return postsDao.postDao(postId.id()).postObservable();
}
})
.toList()
.compose(MoreOperators.<ResponseOrError<Post>>newCombineAll())
.compose(ResponseOrError.<Post>newFromListObservable())
.compose(
ResponseOrError.map(
new Func1<List<Post>, PostsResponse>() {
@Override
public PostsResponse call(List<Post> posts) {
return new PostsResponse(o.title(), posts, o.nextToken());
}
}));
}
}));
}
public MainPresenter(@Nonnull PostsDao postsDao) {
this.postsDao = postsDao;
titleObservable =
postsObservable()
.compose(
ResponseOrError.map(
new Func1<PostsResponse, String>() {
@Override
public String call(PostsResponse postsResponse) {
return Strings.nullToEmpty(postsResponse.title());
}
}))
.compose(ObservableExtensions.<ResponseOrError<String>>behaviorRefCount());
itemsObservable =
postsObservable()
.compose(
ResponseOrError.map(
new Func1<PostsResponse, List<AdapterItem>>() {
@Override
public List<AdapterItem> call(PostsResponse postsResponse) {
final List<Post> posts = postsResponse.items();
return FluentIterable.from(posts)
.transform(
new Function<Post, AdapterItem>() {
@Nonnull
@Override
public AdapterItem apply(Post input) {
return new AdapterItem(input.id(), input.name());
}
})
.toList();
}
}))
.compose(ObservableExtensions.<ResponseOrError<List<AdapterItem>>>behaviorRefCount());
}
@Nonnull
public Observable<List<AdapterItem>> itemsObservable() {
return itemsObservable.compose(ResponseOrError.<List<AdapterItem>>onlySuccess());
}
@Nonnull
public Observable<String> titleObservable() {
return titleObservable.compose(ResponseOrError.<String>onlySuccess());
}