private void initializeSubscriptions() {
if (downloadsSubscription != null && !downloadsSubscription.isUnsubscribed())
downloadsSubscription.unsubscribe();
if (threadsNumberSubscription != null && !threadsNumberSubscription.isUnsubscribed())
threadsNumberSubscription.unsubscribe();
threadsNumberSubscription =
preferences.downloadThreads().asObservable().subscribe(threadsNumber::onNext);
downloadsSubscription =
downloadsQueueSubject
.lift(new DynamicConcurrentMergeOperator<>(this::downloadChapter, threadsNumber))
.onBackpressureBuffer()
.observeOn(AndroidSchedulers.mainThread())
.map(download -> areAllDownloadsFinished())
.subscribe(
finished -> {
if (finished) {
DownloadService.stop(context);
}
},
e -> Timber.e(e.getCause(), e.getMessage()));
if (!isRunning) {
isRunning = true;
runningSubject.onNext(true);
}
}
