@Test
public void exampleEquivalence() {
TestScheduler scheduler = Schedulers.test();
TestSubscriber<Object> testerJoin = new TestSubscriber<>();
TestSubscriber<Object> testerGroupJoin = new TestSubscriber<>();
Observable<Long> left = Observable.interval(100, TimeUnit.MILLISECONDS, scheduler);
Observable<Long> right = Observable.interval(100, TimeUnit.MILLISECONDS, scheduler);
left.join(
right,
i -> Observable.timer(150, TimeUnit.MILLISECONDS, scheduler),
i -> Observable.timer(0, TimeUnit.MILLISECONDS, scheduler),
(l, r) -> Tuple.create(l, r))
.take(10)
.subscribe(testerJoin);
left.groupJoin(
right,
i -> Observable.timer(150, TimeUnit.MILLISECONDS, scheduler),
i -> Observable.timer(0, TimeUnit.MILLISECONDS, scheduler),
(l, rs) -> rs.map(r -> Tuple.create(l, r)))
.flatMap(i -> i)
.take(10)
.subscribe(testerGroupJoin);
scheduler.advanceTimeTo(600, TimeUnit.MILLISECONDS);
testerJoin.assertReceivedOnNext(testerGroupJoin.getOnNextEvents());
}
@Test
public void test() {
TestSubscriber<Object> tester = new TestSubscriber<>();
TestScheduler scheduler = Schedulers.test();
Observable<Long> left = Observable.interval(100, TimeUnit.MILLISECONDS, scheduler).take(6);
Observable<Long> right = Observable.interval(200, TimeUnit.MILLISECONDS, scheduler).take(3);
left.groupJoin(
right,
i -> Observable.never(),
i -> Observable.timer(0, TimeUnit.MILLISECONDS, scheduler),
(l, rs) -> rs.toList().map(rl -> Tuple.create(l, rl)))
.flatMap(i -> i)
.subscribe(tester);
scheduler.advanceTimeTo(600, TimeUnit.MILLISECONDS);
tester.assertReceivedOnNext(
Arrays.asList(
Tuple.create(0L, Arrays.asList(0L, 1L, 2L)),
Tuple.create(1L, Arrays.asList(0L, 1L, 2L)),
Tuple.create(2L, Arrays.asList(1L, 2L)),
Tuple.create(3L, Arrays.asList(1L, 2L)),
Tuple.create(4L, Arrays.asList(2L)),
Tuple.create(5L, Arrays.asList(2L))));
}
/**
* Make sure we get a MissingBackpressureException propagated through when we have a fast temporal
* (hot) producer.
*/
@Test
public void testHotOperatorBackpressure() {
TestSubscriber<String> ts = new TestSubscriber<String>();
Observable.timer(0, 1, TimeUnit.MICROSECONDS)
.observeOn(Schedulers.computation())
.map(
new Func1<Long, String>() {
@Override
public String call(Long t1) {
System.out.println(t1);
try {
Thread.sleep(100);
} catch (InterruptedException e) {
}
return t1 + " slow value";
}
})
.subscribe(ts);
ts.awaitTerminalEvent();
System.out.println("Errors: " + ts.getOnErrorEvents());
assertEquals(1, ts.getOnErrorEvents().size());
assertEquals(MissingBackpressureException.class, ts.getOnErrorEvents().get(0).getClass());
}
private Observable<Void> handleHystrixRequest(final HttpServerResponse<O> response) {
writeHeaders(response);
final Subject<Void, Void> subject = PublishSubject.create();
final MultipleAssignmentSubscription subscription = new MultipleAssignmentSubscription();
Subscription actionSubscription =
Observable.timer(0, interval, TimeUnit.MILLISECONDS, Schedulers.computation())
.subscribe(
new Action1<Long>() {
@Override
public void call(Long tick) {
if (!response.getChannel().isOpen()) {
subscription.unsubscribe();
return;
}
try {
writeMetric(JsonMapper.toJson(metrics), response);
} catch (Exception e) {
subject.onError(e);
}
}
});
subscription.set(actionSubscription);
return subject;
}
public void deleteAfterSomeTime(List<QuranRow> remove) {
if (mPendingRemoval != null) {
// handle a new delete request when one is already happening by adding those items to delete
// now and un-subscribing from the old request.
if (mItemsToRemove != null) {
remove.addAll(mItemsToRemove);
}
cancelDeletion();
}
mItemsToRemove = remove;
mPendingRemoval =
Observable.timer(DELAY_DELETION_DURATION_IN_MS, TimeUnit.MILLISECONDS)
.flatMap(
new Func1<Long, Observable<BookmarkResult>>() {
@Override
public Observable<BookmarkResult> call(Long aLong) {
return removeItemsObservable();
}
})
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(
new Action1<BookmarkResult>() {
@Override
public void call(BookmarkResult result) {
mPendingRemoval = null;
mCachedData = result;
if (mFragment != null) {
mFragment.onNewData(result);
}
}
});
}
private void loadList(List<AppInfo> apps) {
mRecyclerView.setVisibility(View.VISIBLE);
Observable<AppInfo> appsSequence =
Observable.interval(1000, TimeUnit.MILLISECONDS)
.map(
position -> {
App.L.debug("Position: " + position);
return apps.get(position.intValue());
});
Observable<Long> tictoc = Observable.interval(1000, TimeUnit.MILLISECONDS);
appsSequence
.join(
tictoc,
appInfo -> Observable.timer(2, TimeUnit.SECONDS),
time -> Observable.timer(0, TimeUnit.SECONDS),
this::updateTitle)
.observeOn(AndroidSchedulers.mainThread())
.take(10)
.subscribe(
new Observer<AppInfo>() {
@Override
public void onCompleted() {
Toast.makeText(getActivity(), "Here is the list!", Toast.LENGTH_LONG).show();
}
@Override
public void onError(Throwable e) {
mSwipeRefreshLayout.setRefreshing(false);
Toast.makeText(getActivity(), "Something went wrong!", Toast.LENGTH_SHORT).show();
}
@Override
public void onNext(AppInfo appInfo) {
if (mSwipeRefreshLayout.isRefreshing()) {
mSwipeRefreshLayout.setRefreshing(false);
}
mAddedApps.add(appInfo);
int position = mAddedApps.size() - 1;
mAdapter.addApplication(position, appInfo);
mRecyclerView.smoothScrollToPosition(position);
}
});
}
private void delayShowAll(long time) {
Observable.timer(time, TimeUnit.MILLISECONDS, AndroidSchedulers.mainThread())
.subscribe(
new Subscriber<Long>() {
public void onCompleted() {
MainActivity.this.gotoNext();
}
public void onError(Throwable e) {}
public void onNext(Long aLong) {}
});
}
private void showRedHeartLayout() {
Observable.timer(400, TimeUnit.MILLISECONDS, AndroidSchedulers.mainThread())
.subscribe(
new Subscriber<Long>() {
public void onCompleted() {
mHeartLayout.setVisibility(View.VISIBLE);
MainActivity.this.delayDo2();
}
public void onError(Throwable e) {}
public void onNext(Long aLong) {}
});
}
@Test
public void testErrorPropagatesWhenNoOutstandingRequests() {
Observable<Long> timer =
Observable.timer(0, 1, TimeUnit.MICROSECONDS)
.doOnEach(
new Action1<Notification<? super Long>>() {
@Override
public void call(Notification<? super Long> n) {
// System.out.println("BEFORE " +
// n);
}
})
.observeOn(Schedulers.newThread())
.doOnEach(
new Action1<Notification<? super Long>>() {
@Override
public void call(Notification<? super Long> n) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
}
// System.out.println("AFTER " +
// n);
}
});
TestSubscriber<Long> ts = new TestSubscriber<Long>();
Observable.combineLatest(
timer,
Observable.<Integer>never(),
new Func2<Long, Integer, Long>() {
@Override
public Long call(Long t1, Integer t2) {
return t1;
}
})
.take(RxRingBuffer.SIZE * 2)
.subscribe(ts);
ts.awaitTerminalEvent();
assertEquals(1, ts.getOnErrorEvents().size());
assertEquals(MissingBackpressureException.class, ts.getOnErrorEvents().get(0).getClass());
}
private void delayDo2() {
Observable.timer(
(long) this.mRandom2.nextInt(200),
TimeUnit.MILLISECONDS,
AndroidSchedulers.mainThread())
.subscribe(
new Subscriber<Long>() {
public void onCompleted() {
MainActivity.this.mHeartLayout.addHeart(MainActivity.this.randomColor());
MainActivity.this.delayDo2();
}
public void onError(Throwable e) {}
public void onNext(Long aLong) {}
});
}
private void delayDo() {
Observable.timer(0, TimeUnit.SECONDS, AndroidSchedulers.mainThread())
.subscribe(
new Subscriber<Long>() {
public void onCompleted() {
MainActivity.this.mWhiteSnowView.setVisibility(View.GONE);
MainActivity.this.mWebView.setVisibility(View.VISIBLE);
MainActivity.this.delayShow(5100); // 延时显示显示打印机
MainActivity.this.mWebView.loadUrl(MainActivity.URL);
}
public void onError(Throwable e) {}
public void onNext(Long aLong) {}
});
}
public void example() {
Observable<String> left =
Observable.interval(100, TimeUnit.MILLISECONDS).map(i -> "L" + i).take(6);
Observable<String> right =
Observable.interval(200, TimeUnit.MILLISECONDS).map(i -> "R" + i).take(3);
left.groupJoin(
right,
i -> Observable.never(),
i -> Observable.timer(0, TimeUnit.MILLISECONDS),
(l, rs) -> rs.toList().subscribe(list -> System.out.println(l + ": " + list)))
.subscribe();
// L0: [R0, R1, R2]
// L1: [R0, R1, R2]
// L2: [R1, R2]
// L3: [R1, R2]
// L4: [R2]
// L5: [R2]
}
private void reSchedule(final Handler h) {
System.out.println("reScheduling:" + backOff);
logger.info("rescheduling in {} ms", backOff);
Observable.timer(backOff, TimeUnit.MILLISECONDS)
// .flatMap(new Func1<Long, Observable<Long>>(){
//
// @Override
// public Observable<Long> call(Long t) {
// System.out.println("call from flatmap -> doWork -> just " + t);
// doWork(h);
// return Observable.just(t);
// }
// })
.subscribe(
s -> {
System.out.println("onENextCalled,round -> " + round);
doWork(h);
});
//
// subscribeOn(Schedulers.computation())
// .subscribe((n)->{System.out.println("timerOnNext");},
// e -> {
// logger.warn("failed to rescheduled.inc backoff",e);
// backOff += waitOnEmtpyInMs;
// reSchedule(h);
// });
// Observable.timer(backOff, TimeUnit.MILLISECONDS)
// .map(l -> {retunr })
// .subscribe(s -> {
// doWork(h);
// }, e -> {
// logger.warn("failed to rescheduled.inc backoff",e);
// backOff += waitOnEmtpyInMs;
// reSchedule(h);
// });
}
