这可能会对您有所帮助。我实现了运算符 RxJava2 来处理 APiError。我使用电梯操作员。
请参阅示例。
public final class ApiClient implements ApiClientInterface {
...
@NonNull
@Override
public Observable<ActivateResponse> activate(String email, EmailData emailLinkData) {
return myApiService.activate(email, emailData)
.lift(getApiErrorTransformer())
.subscribeOn(Schedulers.io());
}
private <T>ApiErrorOperator<T> getApiErrorTransformer() {
return new ApiErrorOperator<>(gson, networkService);
}
}
然后你可以找到自定义运算符
public final class ApiErrorOperator<T> implements ObservableOperator<T, T> {
private static final String TAG = "ApiErrorOperator";
private final Gson gson;
private final NetworkService networkService;
public ApiErrorOperator(@NonNull Gson gson, @NonNull NetworkService networkService) {
this.gson = gson;
this.networkService = networkService;
}
@Override
public Observer<? super T> apply(Observer<? super T> observer) throws Exception {
return new Observer<T>() {
@Override
public void onSubscribe(Disposable d) {
observer.onSubscribe(d);
}
@Override
public void onNext(T value) {
observer.onNext(value);
}
@Override
public void onError(Throwable e) {
Log.e(TAG, "onError", e);
if (e instanceof HttpException) {
try {
HttpException error = (HttpException) e;
Response response = error.response();
String errorBody = response.errorBody().string();
ErrorResponse errorResponse = gson.fromJson(errorBody.trim(), ErrorResponse.class);
ApiException exception = new ApiException(errorResponse, response);
observer.onError(exception);
} catch (IOException exception) {
observer.onError(exception);
}
} else if (!networkService.isNetworkAvailable()) {
observer.onError(new NetworkException(ErrorResponse.builder()
.setErrorCode("")
.setDescription("No Network Connection Error")
.build()));
} else {
observer.onError(e);
}
}
@Override
public void onComplete() {
observer.onComplete();
}
};
}
}