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Reactive Extensions for Java
/**
* Copyright (c) 2016-present, RxJava Contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
* the License for the specific language governing permissions and limitations under the License.
*/
package io.reactivex.internal.operators.observable;
import java.util.concurrent.*;
import java.util.concurrent.atomic.AtomicReference;
import io.reactivex.*;
import io.reactivex.Scheduler.Worker;
import io.reactivex.disposables.Disposable;
import io.reactivex.internal.disposables.*;
import io.reactivex.internal.observers.FullArbiterObserver;
import io.reactivex.observers.SerializedObserver;
import io.reactivex.plugins.RxJavaPlugins;
public final class ObservableTimeoutTimed extends AbstractObservableWithUpstream {
final long timeout;
final TimeUnit unit;
final Scheduler scheduler;
final ObservableSource other;
static final Disposable NEW_TIMER = new EmptyDisposable();
public ObservableTimeoutTimed(ObservableSource source,
long timeout, TimeUnit unit, Scheduler scheduler, ObservableSource other) {
super(source);
this.timeout = timeout;
this.unit = unit;
this.scheduler = scheduler;
this.other = other;
}
@Override
public void subscribeActual(Observer t) {
if (other == null) {
source.subscribe(new TimeoutTimedObserver(
new SerializedObserver(t), // because errors can race
timeout, unit, scheduler.createWorker()));
} else {
source.subscribe(new TimeoutTimedOtherObserver(
t, // the FullArbiter serializes
timeout, unit, scheduler.createWorker(), other));
}
}
static final class TimeoutTimedOtherObserver
extends AtomicReference implements Observer, Disposable {
private static final long serialVersionUID = -4619702551964128179L;
final Observer actual;
final long timeout;
final TimeUnit unit;
final Scheduler.Worker worker;
final ObservableSource other;
Disposable s;
final ObserverFullArbiter arbiter;
volatile long index;
volatile boolean done;
TimeoutTimedOtherObserver(Observer actual, long timeout, TimeUnit unit, Worker worker,
ObservableSource other) {
this.actual = actual;
this.timeout = timeout;
this.unit = unit;
this.worker = worker;
this.other = other;
this.arbiter = new ObserverFullArbiter(actual, this, 8);
}
@Override
public void onSubscribe(Disposable s) {
if (DisposableHelper.validate(this.s, s)) {
this.s = s;
if (arbiter.setDisposable(s)) {
actual.onSubscribe(arbiter);
scheduleTimeout(0L);
}
}
}
@Override
public void onNext(T t) {
if (done) {
return;
}
long idx = index + 1;
index = idx;
if (arbiter.onNext(t, s)) {
scheduleTimeout(idx);
}
}
void scheduleTimeout(final long idx) {
Disposable d = get();
if (d != null) {
d.dispose();
}
if (compareAndSet(d, NEW_TIMER)) {
d = worker.schedule(new SubscribeNext(idx), timeout, unit);
DisposableHelper.replace(this, d);
}
}
void subscribeNext() {
other.subscribe(new FullArbiterObserver(arbiter));
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
arbiter.onError(t, s);
worker.dispose();
}
@Override
public void onComplete() {
if (done) {
return;
}
done = true;
arbiter.onComplete(s);
worker.dispose();
}
@Override
public void dispose() {
s.dispose();
worker.dispose();
}
@Override
public boolean isDisposed() {
return worker.isDisposed();
}
final class SubscribeNext implements Runnable {
private final long idx;
SubscribeNext(long idx) {
this.idx = idx;
}
@Override
public void run() {
if (idx == index) {
done = true;
s.dispose();
DisposableHelper.dispose(TimeoutTimedOtherObserver.this);
subscribeNext();
worker.dispose();
}
}
}
}
static final class TimeoutTimedObserver
extends AtomicReference
implements Observer, Disposable {
private static final long serialVersionUID = -8387234228317808253L;
final Observer actual;
final long timeout;
final TimeUnit unit;
final Scheduler.Worker worker;
Disposable s;
volatile long index;
volatile boolean done;
TimeoutTimedObserver(Observer actual, long timeout, TimeUnit unit, Worker worker) {
this.actual = actual;
this.timeout = timeout;
this.unit = unit;
this.worker = worker;
}
@Override
public void onSubscribe(Disposable s) {
if (DisposableHelper.validate(this.s, s)) {
this.s = s;
actual.onSubscribe(this);
scheduleTimeout(0L);
}
}
@Override
public void onNext(T t) {
if (done) {
return;
}
long idx = index + 1;
index = idx;
actual.onNext(t);
scheduleTimeout(idx);
}
void scheduleTimeout(final long idx) {
Disposable d = get();
if (d != null) {
d.dispose();
}
if (compareAndSet(d, NEW_TIMER)) {
d = worker.schedule(new TimeoutTask(idx), timeout, unit);
DisposableHelper.replace(this, d);
}
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
actual.onError(t);
dispose();
}
@Override
public void onComplete() {
if (done) {
return;
}
done = true;
actual.onComplete();
dispose();
}
@Override
public void dispose() {
s.dispose();
worker.dispose();
}
@Override
public boolean isDisposed() {
return worker.isDisposed();
}
final class TimeoutTask implements Runnable {
private final long idx;
TimeoutTask(long idx) {
this.idx = idx;
}
@Override
public void run() {
if (idx == index) {
done = true;
s.dispose();
DisposableHelper.dispose(TimeoutTimedObserver.this);
actual.onError(new TimeoutException());
worker.dispose();
}
}
}
}
static final class EmptyDisposable implements Disposable {
@Override
public void dispose() { }
@Override
public boolean isDisposed() {
return true;
}
}
}
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