Examples with Optional java8.util.Optional used on opensource projects

Example 1 with Optional

use of java8.util.Optional in project samourai-wallet-android by Samourai-Wallet.

the class WhirlpoolNotificationService method listenService.

private void listenService() {
    try {
        Optional<WhirlpoolWallet> whirlpoolWalletOpt = androidWhirlpoolWalletService.getWhirlpoolWallet();
        if (!whirlpoolWalletOpt.isPresent()) {
            // whirlpool wallet not opened yet
            return;
        }
        // whirlpool wallet is opened
        WhirlpoolWallet whirlpoolWallet = whirlpoolWalletOpt.get();
        updateNotification();
        Disposable stateDisposable = whirlpoolWallet.getMixingState().getObservable().observeOn(AndroidSchedulers.mainThread()).subscribeOn(Schedulers.io()).subscribe(mixingState -> updateNotification());
        Disposable repeatedChecks = Observable.fromCallable(() -> true).repeatWhen(completed -> completed.delay(3, TimeUnit.SECONDS)).subscribe(aBoolean -> {
            updateNotification();
            notifySuccessMixes(whirlpoolWallet.getMixingState());
        }, er -> {
        });
        compositeDisposable.add(repeatedChecks);
        compositeDisposable.add(stateDisposable);
    } catch (Exception e) {
        e.printStackTrace();
    }
}