public Observable<Void> register() {
return Observable.defer(
new Func0<Observable<String>>() {
@Override
public Observable<String> call() {
String regId = getRegId();
if (regId != null) {
return Observable.just(regId);
} else {
try {
regId =
googleCloudMessaging.register(
context.getString(R.string.google_project_id));
return Observable.just(regId);
} catch (IOException ioe) {
return Observable.error(ioe);
}
}
}
})
.retry(3)
.flatMap(
new Func1<String, Observable<Void>>() {
@Override
public Observable<Void> call(String gcmId) {
storeRegId(gcmId);
return Observable.just(null);
}
});
}
public static void main(String... args) {
// initialize
DiscoveryAndLoadBalancer.getFactory();
// hystrix stream => http://localhost:9999
startHystrixMetricsStream();
System.out.println("Server => Starting at http://localhost:8080/");
System.out.println(" Sample URLs: ");
System.out.println(" - http://localhost:8080/device/home?userId=123");
System.out.println("----------------------------------------------------------------");
// start web services => http://localhost:8080
RxNetty.createHttpServer(
8080,
(request, response) -> {
if (request.getPath().contains("favicon.ico")) {
return Observable.empty();
}
// System.out.println("Server => Request: " + request.getPath());
return Observable.defer(
() -> {
HystrixRequestContext.initializeContext();
try {
return handleRoutes(request, response);
} catch (Throwable e) {
System.err.println("Server => Error [" + request.getPath() + "] => " + e);
response.setStatus(HttpResponseStatus.BAD_REQUEST);
return response.writeStringAndFlush(
"Error 500: Bad Request\n" + e.getMessage() + "\n");
}
})
.onErrorResumeNext(
error -> {
System.err.println("Server => Error: " + error.getMessage());
error.printStackTrace();
return writeError(request, response, "Failed: " + error.getMessage());
})
.doOnTerminate(
() -> {
if (HystrixRequestContext.isCurrentThreadInitialized()) {
System.out.println(
"Server => Request ["
+ request.getPath()
+ "] => "
+ HystrixRequestLog.getCurrentRequest()
.getExecutedCommandsAsString());
HystrixRequestContext.getContextForCurrentThread().shutdown();
} else {
System.err.println(
"HystrixRequestContext not initialized for thread: "
+ Thread.currentThread());
}
response.close();
});
})
.startAndWait();
}
@Override
public Observable<Boolean> publishMessage(List<MessageEntity> messageEntities) {
return Observable.defer(
() -> {
boolean status = true;
mTweetMessage.tweetMessages(mMessageDataMapper.unmap(messageEntities));
status = mPostMessage.postMessage(mMessageDataMapper.unmap(messageEntities));
return Observable.just(status);
});
}
public Observable<List<Item>> getEmulateResponse(int offset, int limit) {
if (offset == OFFSET_WHEN_FAKE_ERROR && fakeErrorCount < MAX_FAKE_ERROR_COUNT) {
// emulate fake error in response
fakeErrorCount++;
return Observable.error(new RuntimeException("fake error"));
} else {
return Observable.defer(() -> Observable.just(getFakeItemList(offset, limit)))
.delaySubscription(FAKE_RESPONSE_TIME_IN_MS, TimeUnit.MILLISECONDS);
}
}
private void checkCredentials(final String username, final String password) {
final String nam = StringUtils.defaultString(username);
final String pwd = StringUtils.defaultString(password);
if (StringUtils.isBlank(username) || StringUtils.isBlank(password)) {
ActivityMixin.showToast(this, R.string.err_missing_auth);
return;
}
final Credentials credentials = new Credentials(nam, pwd);
final AbstractCredentialsAuthorizationActivity authorizationActivity = this;
final ProgressDialog loginDialog =
ProgressDialog.show(
authorizationActivity,
res.getString(R.string.init_login_popup),
getAuthDialogWait(),
true);
loginDialog.setCancelable(false);
AppObservable.bindActivity(
authorizationActivity,
Observable.defer(
new Func0<Observable<StatusCode>>() {
@Override
public Observable<StatusCode> call() {
return Observable.just(checkCredentials(credentials));
}
}))
.subscribeOn(AndroidRxUtils.networkScheduler)
.subscribe(
new Action1<StatusCode>() {
@Override
public void call(StatusCode statusCode) {
loginDialog.dismiss();
if (statusCode == StatusCode.NO_ERROR) {
setCredentials(credentials);
showToast(getAuthDialogCompleted());
setResult(RESULT_OK);
finish();
} else {
Dialogs.message(
authorizationActivity,
R.string.init_login_popup,
res.getString(
R.string.init_login_popup_failed_reason, statusCode.getErrorString(res)));
checkButton.setText(getAuthCheckAgain());
checkButton.setOnClickListener(new CheckListener());
checkButton.setEnabled(true);
}
}
});
}
@Override
public Observable<List<MessageEntity>> importMessage() {
return Observable.defer(
() -> {
ProcessSms processSms = mPostMessage.getProcessSms();
List<SmsMessage> smsMessages = processSms.importMessages();
List<Message> messages = new ArrayList<>();
for (SmsMessage smsMessage : smsMessages) {
messages.add(mPostMessage.map(smsMessage));
}
return Observable.just(mMessageDataMapper.map(messages));
});
}
/**
* Provides list of resources on the basis of search criteria
*
* @return list of jobs
*/
@NotNull
public Observable<List<Resource>> nextLookup() {
return Observable.defer(
new Func0<Observable<List<Resource>>>() {
@Override
public Observable<List<Resource>> call() {
try {
List<Resource> result = mSyncDelegate.nextLookup();
return Observable.just(result);
} catch (ServiceException e) {
return Observable.error(e);
}
}
});
}
static Observable<String> sampleObservable() {
return Observable.defer(
new Func0<Observable<String>>() {
@Override
public Observable<String> call() {
try {
// Do some long running operation
Thread.sleep(TimeUnit.SECONDS.toMillis(5));
} catch (InterruptedException e) {
throw OnErrorThrowable.from(e);
}
Log.d(TAG, "The sleep is over, now produce something");
return Observable.just("one", "two", "three", "four", "five");
}
});
}
public Observable<List<Station>> getStations() {
if (stationCache.getStations().isPresent()) {
return Observable.just(sortStations(stationCache.getStations().get().values()));
} else {
return Observable.defer(
new Func0<Observable<List<Station>>>() {
@Override
public Observable<List<Station>> call() {
// download stations
Map<String, List<Station.Builder>> builderMap = new HashMap<>();
String startId = null;
Data data;
do {
// iterate over ODS cursor
data =
dataApi.getObjectsSynchronously(
PEGEL_ALARM_SOURCE_ID, startId, QUERY_COUNT, PROPERTY_FILTER_STATION);
for (JsonNode node : data.getResult()) {
Pair<String, Station.Builder> pair = parseStation(node);
List<Station.Builder> stationsList = builderMap.get(pair.first);
if (stationsList == null) {
stationsList = new ArrayList<>();
builderMap.put(pair.first, stationsList);
}
stationsList.add(pair.second);
}
startId = data.getCursor().getNext();
} while (data.getCursor().getHasNext());
// count stations per water and build stations
Map<String, Station> stations = new HashMap<>();
for (String waterName : builderMap.keySet()) {
BodyOfWater water = new BodyOfWater(waterName, builderMap.get(waterName).size());
for (Station.Builder builder : builderMap.get(waterName)) {
Station station = builder.setBodyOfWater(water).build();
stations.put(station.getGaugeId(), station);
}
}
stationCache.setStations(stations);
return Observable.just(sortStations(stations.values()));
}
});
}
}
protected RollingDistributionStream(
final HystrixEventStream<Event> stream,
final int numBuckets,
final int bucketSizeInMs,
final Func2<Histogram, Event, Histogram> addValuesToBucket) {
final List<Histogram> emptyDistributionsToStart = new ArrayList<Histogram>();
for (int i = 0; i < numBuckets; i++) {
emptyDistributionsToStart.add(CachedValuesHistogram.getNewHistogram());
}
final Func1<Observable<Event>, Observable<Histogram>> reduceBucketToSingleDistribution =
new Func1<Observable<Event>, Observable<Histogram>>() {
@Override
public Observable<Histogram> call(Observable<Event> bucket) {
return bucket.reduce(CachedValuesHistogram.getNewHistogram(), addValuesToBucket);
}
};
rollingDistributionStream =
Observable.defer(
new Func0<Observable<CachedValuesHistogram>>() {
@Override
public Observable<CachedValuesHistogram> call() {
return stream
.observe()
.window(
bucketSizeInMs, TimeUnit.MILLISECONDS) // stream of unaggregated buckets
.flatMap(
reduceBucketToSingleDistribution) // stream of aggregated Histograms
.startWith(
emptyDistributionsToStart) // stream of aggregated Histograms that
// starts with n empty
.window(
numBuckets,
1) // windowed stream: each OnNext is a stream of n Histograms
.flatMap(
reduceWindowToSingleDistribution) // reduced stream: each OnNext is a
// single Histogram
.map(cacheHistogramValues); // convert to CachedValueHistogram
// (commonly-accessed values are cached)
}
})
.share(); // multicast
}
public Observable<Void> unregister() {
return Observable.defer(
new Func0<Observable<Response>>() {
@Override
public Observable<Response> call() {
try {
clearRegId();
googleCloudMessaging.unregister();
return Observable.just(null);
} catch (IOException ioe) {
return Observable.error(ioe);
}
}
})
.flatMap(
new Func1<Response, Observable<Void>>() {
@Override
public Observable<Void> call(Response response) {
return Observable.just(null);
}
});
}
@Test
public void test() {
// System.out.println(Arrays.toString(DataType.class.getGenericInterfaces()));
Observable<String> observableHello = Observable.just(helloWorld());
Observable<String> observable =
Observable.create(
new Observable.OnSubscribe<String>() {
@Override
public void call(Subscriber<? super String> subscriber) {
subscriber.onNext("ddddd");
subscriber.onCompleted();
}
})
.filter(b -> b.startsWith("ddd"))
.doOnCompleted(
() -> {
System.out.println("doOnComplete");
})
// .concatWith(observableHello)
// .mergeWith(observableHello)
// .mergeWith(observableHello)
.ambWith(observableHello);
// observable.subscribe();
// Subscription subscription = observable.subscribe(s -> {
// System.out.println(s);
// }, a->{}, () -> System.out.println("oncomplete"));
Observable.defer(
() ->
Observable.create(
subscriber1 -> {
System.out.println("deeee");
subscriber1.onCompleted();
}))
.subscribe();
}
// Caches are loaded from disk on a computation scheduler to avoid using more threads than cores
// while decoding
// the image. Downloads happen on downloadScheduler, in parallel with image decoding.
private Observable<BitmapDrawable> fetchDrawableUncached(final String url) {
if (StringUtils.isBlank(url) || ImageUtils.containsPattern(url, BLOCKED)) {
return Observable.just(ImageUtils.getTransparent1x1Drawable(resources));
}
// Explicit local file URLs are loaded from the filesystem regardless of their age. The IO part
// is short
// enough to make the whole operation on the computation scheduler.
if (FileUtils.isFileUrl(url)) {
return Observable.defer(
new Func0<Observable<BitmapDrawable>>() {
@Override
public Observable<BitmapDrawable> call() {
final Bitmap bitmap = loadCachedImage(FileUtils.urlToFile(url), true).left;
return bitmap != null
? Observable.just(ImageUtils.scaleBitmapToFitDisplay(bitmap))
: Observable.<BitmapDrawable>empty();
}
})
.subscribeOn(AndroidRxUtils.computationScheduler);
}
final boolean shared = url.contains("/images/icons/icon_");
final String pseudoGeocode = shared ? SHARED : geocode;
return Observable.create(
new OnSubscribe<BitmapDrawable>() {
@Override
public void call(final Subscriber<? super BitmapDrawable> subscriber) {
subscription.add(subscriber);
subscriber.add(
AndroidRxUtils.computationScheduler
.createWorker()
.schedule(
new Action0() {
@Override
public void call() {
final ImmutablePair<BitmapDrawable, Boolean> loaded = loadFromDisk();
final BitmapDrawable bitmap = loaded.left;
if (loaded.right) {
subscriber.onNext(bitmap);
subscriber.onCompleted();
return;
}
if (bitmap != null && !onlySave) {
subscriber.onNext(bitmap);
}
AndroidRxUtils.networkScheduler
.createWorker()
.schedule(
new Action0() {
@Override
public void call() {
downloadAndSave(subscriber);
}
});
}
}));
}
private ImmutablePair<BitmapDrawable, Boolean> loadFromDisk() {
final ImmutablePair<Bitmap, Boolean> loadResult =
loadImageFromStorage(url, pseudoGeocode, shared);
return scaleImage(loadResult);
}
private void downloadAndSave(final Subscriber<? super BitmapDrawable> subscriber) {
final File file = LocalStorage.getStorageFile(pseudoGeocode, url, true, true);
if (url.startsWith("data:image/")) {
if (url.contains(";base64,")) {
ImageUtils.decodeBase64ToFile(StringUtils.substringAfter(url, ";base64,"), file);
} else {
Log.e("HtmlImage.getDrawable: unable to decode non-base64 inline image");
subscriber.onCompleted();
return;
}
} else if (subscriber.isUnsubscribed() || downloadOrRefreshCopy(url, file)) {
// The existing copy was fresh enough or we were unsubscribed earlier.
subscriber.onCompleted();
return;
}
if (onlySave) {
subscriber.onCompleted();
return;
}
AndroidRxUtils.computationScheduler
.createWorker()
.schedule(
new Action0() {
@Override
public void call() {
final ImmutablePair<BitmapDrawable, Boolean> loaded = loadFromDisk();
final BitmapDrawable image = loaded.left;
if (image != null) {
subscriber.onNext(image);
} else {
subscriber.onNext(
returnErrorImage
? new BitmapDrawable(
resources,
BitmapFactory.decodeResource(
resources, R.drawable.image_not_loaded))
: ImageUtils.getTransparent1x1Drawable(resources));
}
subscriber.onCompleted();
}
});
}
});
}
private Observable<Long> DeferObserver() {
return Observable.defer(() -> Observable.just(System.currentTimeMillis()));
}
@NonNull
public Observable<List<PostAndImage>> retrieve() {
final long currentSavedTimestamp = mUserStorage.getTimestamp();
return Observable.defer(
new Func0<Observable<List<PostAndImage>>>() {
@Override
public Observable<List<PostAndImage>> call() {
String subreddits = mUserStorage.getSubreddits();
if (StringUtils.isEmpty(subreddits)) {
subreddits = StringUtils.join("+", Constants.sDefaultSelectedSubreddits);
}
return mRedditService
.latestPosts(
subreddits, mUserStorage.getSortType(), mUserStorage.getNumberToRequest())
.lift(LatestPostsRetriever.<Post>flattenList())
.filter(
new Func1<Post, Boolean>() {
@Override
public Boolean call(Post post) {
// Check that this post is new (i.e. we haven't retrieved it before)
return post.getCreatedUtc() > currentSavedTimestamp;
}
})
.doOnNext(
new Action1<Post>() {
@Override
public void call(Post post) {
// Save the timestamps from these new posts, so we don't see them again
mUserStorage.setSeenTimestamp(post.getCreatedUtc());
}
})
.flatMap(
new Func1<Post, Observable<PostAndImage>>() {
@Override
public Observable<PostAndImage> call(final Post post) {
return Observable.defer(
new Func0<Observable<PostAndImage>>() {
@Override
public Observable<PostAndImage> call() {
final PostAndImage postAndImage = new PostAndImage(post);
if (post.hasImageUrl()) {
final byte[] bytes =
mImageDownloader.downloadImage(post.getImageUrl());
if (bytes != null) {
postAndImage.setImage(Asset.createFromBytes(bytes));
}
}
return Observable.just(postAndImage);
}
})
.onErrorResumeNext(
new Func1<Throwable, Observable<PostAndImage>>() {
@Override
public Observable<PostAndImage> call(Throwable throwable) {
// If we fail to download the image, just skip this Post
return Observable.empty();
}
});
}
})
.toList();
}
})
.onErrorResumeNext(
new Func1<Throwable, Observable<List<PostAndImage>>>() {
@Override
public Observable<List<PostAndImage>> call(Throwable throwable) {
Timber.e(throwable, "Failed to get latest posts");
// If we fail somewhere whilst retrieving posts, just emit an empty list
return Observable.just(Collections.<PostAndImage>emptyList());
}
});
}
public VideoConversion createVideo(final Face face) {
final List<PhotoInfo> photoInfos = photoManager.getPhotosForFace(face);
final List<File> photoFiles = Lists.newArrayList();
for (PhotoInfo info : photoInfos) photoFiles.add(info.getPhotoFile());
final File progressFile = new File(getTmpVideoDir(), "progress");
final Observable<File> conversionObservable =
Observable.defer(
new Func0<Observable<File>>() {
@Override
public Observable<File> call() {
// rename photos to img0000.jpg + process photos
Collections.sort(photoFiles);
int idx = 0;
for (File oldFile : photoFiles) {
++idx;
try {
// process image
Bitmap originalImage = BitmapFactory.decodeFile(oldFile.getAbsolutePath());
Bitmap processedImage = photoProcessor.findFaceAndCrop(originalImage);
// store image
final File newFile =
new File(getTmpVideoDir(), "img" + String.format("%03d", idx) + ".jpg");
if (!newFile.createNewFile())
Timber.e("failed to create file " + newFile.getAbsolutePath());
processedImage.compress(
Bitmap.CompressFormat.JPEG, 100, new FileOutputStream(newFile));
} catch (IOException e) {
Timber.d(e, "failed to copy + process file");
return Observable.error(e);
}
}
// create conversion command
final String photoFileNameTemplate =
getTmpVideoDir().getAbsolutePath() + "/img%03d.jpg";
final String videoFileName = VIDEO_DATE_FORMAT.format(new Date()) + ".mp4";
final File videoFile = new File(getExternalFaceVideoDir(face), videoFileName);
final String command =
String.format(
"-progress %s -framerate 1/%d -i %s -c:v libx264 -r %d -pix_fmt yuv420p %s",
progressFile.getAbsolutePath(),
IMAGE_LENGTH_IN_SECONDS,
photoFileNameTemplate,
FRAMERATE,
videoFile.getAbsolutePath());
Timber.d("executing ffmpeg: " + command);
// start command
return Observable.create(
new Observable.OnSubscribe<File>() {
@Override
public void call(final Subscriber<? super File> subscriber) {
try {
fFmpeg.execute(
command,
new FFmpegExecuteResponseHandler() {
@Override
public void onSuccess(String s) {
Timber.d("video conversion success: " + s);
if (subscriber.isUnsubscribed()) return;
subscriber.onNext(videoFile);
subscriber.onCompleted();
}
@Override
public void onProgress(String s) {
Timber.d("video conversion progress: " + s);
}
@Override
public void onFailure(String s) {
Timber.d("video conversion error: " + s);
subscriber.onError(new IllegalStateException(s));
}
@Override
public void onStart() {
Timber.d("video conversion started");
}
@Override
public void onFinish() {
Timber.d("video conversion finished");
}
});
} catch (FFmpegCommandAlreadyRunningException e) {
Timber.e(e, "failed to start video conversion");
if (subscriber.isUnsubscribed()) return;
subscriber.onError(e);
}
}
});
}
})
.finallyDo(
new Action0() {
@Override
public void call() {
// cleanup
ioUtils.delete(getTmpVideoDir());
}
});
return new VideoConversion(progressFile, photoFiles.size(), conversionObservable);
}
