rxjava - Combine onerror and timout handling - asynchronous

Question

I will start with what I want to achieve.
I want to call a method that returns an Observabe.
I do not know if the called method handles exceptions and timeouts
I want to combine observables in my call (merge/zip etc)
if one method fails, I want the answers from the methods that succeeded -
I don't want to break the flow.
In case of exception, I am capable of handling it and continuing with the flow,
but when I try to add timeoutmanagement I fail.
Here is my code
public static void main(String[] args) {
createObservables(false, true); // stalls for timeout
zip();
}
private static void createObservables(final boolean throwException,
final boolean stall) {
obs1 = Observable.just(1);
obs1 = obs1.map(new Func1<Integer, Integer>() {
#Override public Integer call(Integer integer) {
int i = 0;
if (throwException)
getObj().equals("");
if (stall)
zzz(10);
return ++integer;
}
});
obs2 = Observable.just(111);
}
private static void zip() {
System.out.println("**Zip**");
obs1 = obs1.onErrorReturn(new Func1<Throwable, Integer>() {
#Override public Integer call(Throwable throwable) {
return 999;
}
});
obs1 = obs1.timeout(5, TimeUnit.SECONDS);
Observable.zip(obs1, obs2, new Func2<Integer, Integer, ArrayList<Integer>>() {
#Override
public ArrayList<Integer> call(Integer integer1, Integer integer2) {
ArrayList<Integer> integers = new ArrayList<Integer>();
integers.add(integer1);
integers.add(integer2);
return integers;
}
}).subscribe(new Observer<Object>() {....}
);
}
Now, when I call
createObservables(false , false); // no exceptions and timeouts
I get onNext - [2, 111].
then I call
createObservables(true, false); // throw exception in one method only
I get onNext - [999, 111] - which is what I want. Exception and the result from the second method.
But when I call
createObservables(false, true); // stall on timeout
I get only onError.
But I want to get the other method answer.
Thanks.

Answer 1

Try creating an observable for your timeout value, in this case you want the same value as your error case:
Observable obs1Timeout = Observable.just(999);
Then in your timeout policy give it this observable as the fallback to use in the case of a timeout:
obs1 = obs1.timeout(5, TimeUnit.SECONDS, obs1Timeout);