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Better error handling Rx call

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Valere 2020-11-20 10:16:56 +01:00
parent baef9f5aa7
commit 6146925757
1 changed files with 30 additions and 52 deletions
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82
vector/src/main/java/im/vector/app/features/userdirectory/UserListViewModel.kt
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@ -33,7 +33,9 @@ import org.matrix.android.sdk.api.MatrixPatterns
import org.matrix.android.sdk.api.session.Session
import org.matrix.android.sdk.api.session.profile.ProfileService
import org.matrix.android.sdk.api.session.user.model.User
import org.matrix.android.sdk.api.util.Optional
import org.matrix.android.sdk.api.util.toMatrixItem
import org.matrix.android.sdk.api.util.toOptional
import org.matrix.android.sdk.rx.rx
import java.util.concurrent.TimeUnit
@ -57,9 +59,6 @@ class UserListViewModel @AssistedInject constructor(@Assisted initialState: User
companion object : MvRxViewModelFactory<UserListViewModel, UserListViewState> {
private val USER_NOT_FOUND_MAP = emptyMap<String, Any>()
private val USER_NOT_FOUND = User("")
override fun create(viewModelContext: ViewModelContext, state: UserListViewState): UserListViewModel? {
val factory = when (viewModelContext) {
is FragmentViewModelContext -> viewModelContext.fragment as? Factory
@ -124,65 +123,44 @@ class UserListViewModel @AssistedInject constructor(@Assisted initialState: User
}
currentUserSearchDisposable?.dispose()
directoryUsersSearch
.debounce(300, TimeUnit.MILLISECONDS)
.switchMapSingle { search ->
val stream = if (search.isBlank()) {
Single.just(emptyList())
} else if (MatrixPatterns.isUserId(search)) {
// If it's a valid user id try to use Profile API
// because directory only returns users that are in public rooms or share a room with you, where as
// profile will work other federations
session.rx().searchUsersDirectory(search, 50, state.excludedUserIds ?: emptySet())
.map { users ->
users.sortedBy { it.toMatrixItem().firstLetterOfDisplayName() }
}
.zipWith(
session.rx().getProfileInfo(search)
// ... not sure how to handle that properly (manage error case in map and return optional)
.onErrorReturn { USER_NOT_FOUND_MAP }
.map { json ->
if (json === USER_NOT_FOUND_MAP) {
USER_NOT_FOUND
} else {
User(
userId = search,
displayName = json[ProfileService.DISPLAY_NAME_KEY] as? String,
avatarUrl = json[ProfileService.AVATAR_URL_KEY] as? String
)
}
},
{ t1, t2 ->
if (t2 == USER_NOT_FOUND) {
t1
}
// profile result might also be in search results, in this case keep search result
else if (t1.indexOfFirst { it.userId == t2.userId } != -1) {
t1
} else {
// put it first
listOf(t2) + t1
}
}
)
.doOnSubscribe {
currentUserSearchDisposable = it
}
.doOnDispose {
currentUserSearchDisposable = null
}
Single.just(emptyList<User>())
} else {
session.rx()
val searchObservable = session.rx()
.searchUsersDirectory(search, 50, state.excludedUserIds ?: emptySet())
.map { users ->
users.sortedBy { it.toMatrixItem().firstLetterOfDisplayName() }
}
.doOnSubscribe {
currentUserSearchDisposable = it
}
.doOnDispose {
currentUserSearchDisposable = null
// If it's a valid user id try to use Profile API
// because directory only returns users that are in public rooms or share a room with you, where as
// profile will work other federations
if (!MatrixPatterns.isUserId(search)) {
searchObservable
} else {
val profileObservable = session.rx().getProfileInfo(search)
.map { json ->
User(
userId = search,
displayName = json[ProfileService.DISPLAY_NAME_KEY] as? String,
avatarUrl = json[ProfileService.AVATAR_URL_KEY] as? String
).toOptional()
}
.onErrorReturn { Optional.empty() }
Single.zip(searchObservable, profileObservable, { searchResults, optionalProfile ->
val profile = optionalProfile.getOrNull() ?: return@zip searchResults
val searchContainsProfile = searchResults.indexOfFirst { it.userId == profile.userId } != -1
if (searchContainsProfile) {
searchResults
} else {
listOf(profile) + searchResults
}
})
}
}
stream.toAsync {
copy(directoryUsers = it)