@Override
public void subscribe(final Subscriber<? super T> subscriber) {
try {
if (supplier != null) {
subscriber.onSubscribe(
new PushSubscription<T>(this, subscriber) {
@Override
public void request(long elements) {
try {
supplyValue(subscriber);
} catch (Throwable throwable) {
subscriber.onError(throwable);
}
}
});
} else {
subscriber.onComplete();
}
} catch (Throwable throwable) {
Exceptions.throwIfFatal(throwable);
subscriber.onError(throwable);
}
}
@Override
public void subscribe(Subscriber<? super T> s) {
Consumer<Runnable> scheduler;
try {
scheduler = schedulerFactory.call();
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
EmptySubscription.error(s, e);
return;
}
if (scheduler == null) {
EmptySubscription.error(
s, new NullPointerException("The schedulerFactory returned a null Function"));
return;
}
if (value == null) {
FluxPublishOn.ScheduledEmptySubscriptionEager parent =
new FluxPublishOn.ScheduledEmptySubscriptionEager(s, scheduler);
s.onSubscribe(parent);
scheduler.accept(parent);
} else {
s.onSubscribe(new FluxPublishOn.ScheduledSubscriptionEagerCancel<>(s, value, scheduler));
}
}
@Override
public void onSubscribe(Subscription s) {
if (SubscriptionHelper.validateSubscription(this.s, s)) {
return;
}
this.s = s;
Subscriber<? super U> actual = this.actual;
U b;
try {
b = bufferSupplier.get();
} catch (Throwable e) {
cancelled = true;
s.cancel();
EmptySubscription.error(e, actual);
return;
}
if (b == null) {
cancelled = true;
s.cancel();
EmptySubscription.error(new NullPointerException("The buffer supplied is null"), actual);
return;
}
buffer = b;
Publisher<B> boundary;
try {
boundary = boundarySupplier.get();
} catch (Throwable ex) {
cancelled = true;
s.cancel();
EmptySubscription.error(ex, actual);
return;
}
if (boundary == null) {
cancelled = true;
s.cancel();
EmptySubscription.error(
new NullPointerException("The boundary publisher supplied is null"), actual);
return;
}
BufferBoundarySubscriber<T, U, B> bs = new BufferBoundarySubscriber<T, U, B>(this);
other = bs;
actual.onSubscribe(this);
if (!cancelled) {
s.request(Long.MAX_VALUE);
boundary.subscribe(bs);
}
}
@Override
public void subscribe(final Subscriber<? super QueueSignal> subscriber) {
try {
if (refCount.getAndIncrement() == 0) {
this.channel = lapin.createChannel();
}
subscriber.onSubscribe(createSubscription(subscriber, null, null));
} catch (Exception e) {
refCount.incrementAndGet();
subscriber.onError(e);
}
}
void drain() {
if (WIP.getAndIncrement(this) != 0) {
return;
}
final Subscriber<? super T> a = actual;
int missed = 1;
for (; ; ) {
if (checkTerminated(done, value == null, a)) {
return;
}
long r = requested;
long e = 0L;
while (r != e) {
boolean d = done;
@SuppressWarnings("unchecked")
T v = (T) VALUE.getAndSet(this, null);
boolean empty = v == null;
if (checkTerminated(d, empty, a)) {
return;
}
if (empty) {
break;
}
a.onNext(v);
e++;
}
if (r == e && checkTerminated(done, value == null, a)) {
return;
}
if (e != 0L && r != Long.MAX_VALUE) {
REQUESTED.addAndGet(this, -e);
}
missed = WIP.addAndGet(this, -missed);
if (missed == 0) {
break;
}
}
}
@Override
public void run() {
if (requested) {
if (cancel != CANCELLED) {
s.onNext(0L);
}
asyncExecutor.apply(null);
if (cancel != CANCELLED) {
s.onComplete();
}
} else {
s.onError(new IllegalStateException("Could not emit value due to lack of requests"));
}
}
void slowPath(long n) {
final T[] a = array;
final int len = a.length;
final Subscriber<? super T> s = actual;
int i = index;
int e = 0;
for (; ; ) {
if (cancelled) {
return;
}
while (i != len && e != n) {
T t = a[i];
if (t == null) {
s.onError(new NullPointerException("The " + i + "th array element was null"));
return;
}
s.onNext(t);
if (cancelled) {
return;
}
i++;
e++;
}
if (i == len) {
s.onComplete();
return;
}
n = requested;
if (n == e) {
index = i;
n = REQUESTED.addAndGet(this, -e);
if (n == 0) {
return;
}
e = 0;
}
}
}
@Override
public void onError(final Throwable e) {
// TODO throw if fatal ?;
FastList list;
synchronized (this) {
if (terminated) {
return;
}
if (emitting) {
if (queue == null) {
queue = new FastList();
}
queue.add(new ErrorSentinel(e));
return;
}
emitting = true;
list = queue;
queue = null;
}
drainQueue(list);
delegate.onError(e);
synchronized (this) {
emitting = false;
}
}
@Override
public void next(Object value) {
if (value == null) {
fail(new NullPointerException("value is null"));
return;
}
if (done) {
Exceptions.onNextDropped(value);
return;
}
if (caughtUp && actual != null) {
try {
actual.onNext(value);
} finally {
ch.read();
ReferenceCountUtil.release(value);
}
} else {
Queue<Object> q = queue;
if (q == null) {
q = QueueSupplier.unbounded().get();
queue = q;
}
q.offer(value);
if (drain()) {
caughtUp = true;
}
}
}
@Override
public void subscribe(Subscriber<? super Object> s) {
if (log.isDebugEnabled()) {
log.debug(
"Subscribing inbound receiver [pending: "
+ ""
+ inboundEmitter.getPending()
+ ", done: "
+ inboundEmitter.done
+ "]");
}
if (inboundEmitter.actual == null) {
if (inboundEmitter.done) {
if (inboundEmitter.error != null) {
Operators.error(s, inboundEmitter.error);
return;
} else if (inboundEmitter.getPending() == 0) {
Operators.complete(s);
return;
}
}
inboundEmitter.init(s);
s.onSubscribe(inboundEmitter);
} else {
Operators.error(
s, new IllegalStateException("Only one connection receive subscriber allowed."));
}
}
@Override
public void subscribe(Subscriber<? super Long> s) {
PublisherTimerRunnable r = new PublisherTimerRunnable(s, asyncExecutor);
s.onSubscribe(r);
r.setCancel(asyncExecutor.apply(r));
}
@Override
public void onSubscribe(Subscription s) {
if (SubscriptionHelper.validateSubscription(this.s, s)) {
return;
}
this.s = s;
actual.onSubscribe(s);
}
@Override
public Subscriber<? super IN> apply(Subscriber<? super IN> subscriber) {
long newId = uniqueId++;
if ((options & SUBSCRIBE) == SUBSCRIBE && log.isInfoEnabled()) {
log.trace("subscribe: [{}] {}", newId, subscriber.getClass().getSimpleName());
}
return new LoggerBarrier<>(this, newId, subscriber);
}
@Override
public void subscribe(Subscriber<? super T> s) {
if (array.length == 0) {
EmptySubscription.complete(s);
return;
}
s.onSubscribe(new FluxArraySubscription<>(s, array));
}
@Override
public void request(long n) {
if (SubscriptionHelper.validateRequest(n)) {
return;
}
if (compareAndSet(false, true)) {
int i = 0;
final Subscriber<? super Integer> a = s;
final AtomicInteger c = counter;
while (!cancelled) {
a.onNext(i++);
c.incrementAndGet();
}
System.out.println("unsubscribed after: " + i);
}
}
@Override
public void onComplete() {
if (done) {
return;
}
done = true;
actual.onComplete();
}
@Override
public void onSubscribe(Subscription s) {
if (Operators.validate(this.s, s)) {
this.s = s;
actual.onSubscribe(this);
s.request(Long.MAX_VALUE);
}
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
actual.onError(t);
}
@Override
public void complete() {
if (isCancelled() || done) {
return;
}
done = true;
if (caughtUp && actual != null) {
actual.onComplete();
}
drain();
}
@Override
void subscribe(
AbstractRequestBodyPublisher publisher, Subscriber<? super DataBuffer> subscriber) {
Objects.requireNonNull(subscriber);
if (publisher.changeState(this, NO_DEMAND)) {
Subscription subscription = new RequestBodySubscription(publisher);
publisher.subscriber = subscriber;
subscriber.onSubscribe(subscription);
} else {
throw new IllegalStateException(toString());
}
}
boolean checkTerminated(boolean d, boolean empty, Subscriber<? super T> a) {
if (cancelled) {
VALUE.lazySet(this, null);
return true;
}
if (d) {
Throwable e = error;
if (e != null) {
VALUE.lazySet(this, null);
a.onError(e);
return true;
} else if (empty) {
a.onComplete();
return true;
}
}
return false;
}
@Override
public void subscribe(Subscriber<? super ByteBuffer> subscriber) {
if (subscriber == null) {
throw Exceptions.spec_2_13_exception();
}
if (this.subscriber != null) {
subscriber.onError(new IllegalStateException("Only one subscriber allowed"));
}
this.subscriber = subscriber;
this.subscriber.onSubscribe(new RequestBodySubscription());
}
@Override
public void onNext(T t) {
if (done) {
return;
}
try {
onNext.accept(t);
} catch (Throwable e) {
s.cancel();
onError(e);
return;
}
actual.onNext(t);
}
void drainQueue(FastList list) {
if (list == null || list.size == 0) {
return;
}
Object v;
for (int i = 0; i < list.size; i++) {
v = list.array[i];
if (v == null) {
break;
}
if (v == NULL_SENTINEL) {
delegate.onNext(null);
} else if (v == COMPLETE_SENTINEL) {
delegate.onComplete();
return;
} else if (v.getClass() == ErrorSentinel.class) {
delegate.onError(((ErrorSentinel) v).e);
} else {
@SuppressWarnings("unchecked")
T t = (T) v;
delegate.onNext(t);
}
}
}
void fastPath() {
final T[] a = array;
final int len = a.length;
final Subscriber<? super T> s = actual;
for (int i = index; i != len; i++) {
if (cancelled) {
return;
}
T t = a[i];
if (t == null) {
s.onError(new NullPointerException("The " + i + "th array element was null"));
return;
}
s.onNext(t);
}
if (cancelled) {
return;
}
s.onComplete();
}
void fastPath() {
final Iterator<? extends T> a = iterator;
final Subscriber<? super T> s = actual;
for (; ; ) {
if (cancelled) {
return;
}
T t;
try {
t = a.next();
} catch (Exception ex) {
s.onError(ex);
return;
}
if (cancelled) {
return;
}
if (t == null) {
s.onError(new NullPointerException("The iterator returned a null value"));
return;
}
s.onNext(t);
if (cancelled) {
return;
}
boolean b;
try {
b = a.hasNext();
} catch (Exception ex) {
s.onError(ex);
return;
}
if (cancelled) {
return;
}
if (!b) {
s.onComplete();
return;
}
}
}
@Override
public void fail(Throwable error) {
if (error == null) {
error = new NullPointerException("error is null");
}
if (isCancelled() || done) {
Exceptions.onErrorDropped(error);
return;
}
done = true;
if (caughtUp && actual != null) {
actual.onError(error);
} else {
this.error = error;
done = true;
drain();
}
}
@Override
public void onNext(Try<Optional<T>> t) {
if (done) {
return;
}
if (t.hasError()) {
s.cancel();
onError(t.error());
} else {
Optional<T> o = t.value();
if (o.isPresent()) {
actual.onNext(o.get());
} else {
s.cancel();
onComplete();
}
}
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
try {
onError.accept(t);
} catch (Throwable e) {
t.addSuppressed(e);
}
actual.onError(t);
try {
onAfterTerminate.run();
} catch (Throwable e) {
RxJavaPlugins.onError(e);
}
}
/**
* Common method to take an Iterator as a source of values.
*
* @param s
* @param it
*/
static <T> void subscribe(Subscriber<? super T> s, Iterator<? extends T> it) {
if (it == null) {
EmptySubscription.error(s, new NullPointerException("The iterator is null"));
return;
}
boolean b;
try {
b = it.hasNext();
} catch (Throwable e) {
EmptySubscription.error(s, e);
return;
}
if (!b) {
EmptySubscription.complete(s);
return;
}
s.onSubscribe(new PublisherIterableSubscription<>(s, it));
}
