/**
* 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.completable;
import java.util.concurrent.*;
import java.util.concurrent.atomic.
AtomicBoolean;
import io.reactivex.*;
import io.reactivex.disposables.*;
import io.reactivex.plugins.
RxJavaPlugins;
public final class
CompletableTimeout extends
Completable {
final
CompletableSource source;
final long
timeout;
final
TimeUnit unit;
final
Scheduler scheduler;
final
CompletableSource other;
public
CompletableTimeout(
CompletableSource source, long
timeout,
TimeUnit unit,
Scheduler scheduler,
CompletableSource other) {
this.
source =
source;
this.
timeout =
timeout;
this.
unit =
unit;
this.
scheduler =
scheduler;
this.
other =
other;
}
@
Override
public void
subscribeActual(final
CompletableObserver observer) {
final
CompositeDisposable set = new
CompositeDisposable();
observer.
onSubscribe(
set);
final
AtomicBoolean once = new
AtomicBoolean();
Disposable timer =
scheduler.
scheduleDirect(new
DisposeTask(
once,
set,
observer),
timeout,
unit);
set.
add(
timer);
source.
subscribe(new
TimeOutObserver(
set,
once,
observer));
}
static final class
TimeOutObserver implements
CompletableObserver {
private final
CompositeDisposable set;
private final
AtomicBoolean once;
private final
CompletableObserver downstream;
TimeOutObserver(
CompositeDisposable set,
AtomicBoolean once,
CompletableObserver observer) {
this.
set =
set;
this.
once =
once;
this.
downstream =
observer;
}
@
Override
public void
onSubscribe(
Disposable d) {
set.
add(
d);
}
@
Override
public void
onError(
Throwable e) {
if (
once.
compareAndSet(false, true)) {
set.
dispose();
downstream.
onError(
e);
} else {
RxJavaPlugins.
onError(
e);
}
}
@
Override
public void
onComplete() {
if (
once.
compareAndSet(false, true)) {
set.
dispose();
downstream.
onComplete();
}
}
}
final class
DisposeTask implements
Runnable {
private final
AtomicBoolean once;
final
CompositeDisposable set;
final
CompletableObserver downstream;
DisposeTask(
AtomicBoolean once,
CompositeDisposable set,
CompletableObserver observer) {
this.
once =
once;
this.
set =
set;
this.
downstream =
observer;
}
@
Override
public void
run() {
if (
once.
compareAndSet(false, true)) {
set.
clear();
if (
other == null) {
downstream.
onError(new
TimeoutException());
} else {
other.
subscribe(new
DisposeObserver());
}
}
}
final class
DisposeObserver implements
CompletableObserver {
@
Override
public void
onSubscribe(
Disposable d) {
set.
add(
d);
}
@
Override
public void
onError(
Throwable e) {
set.
dispose();
downstream.
onError(
e);
}
@
Override
public void
onComplete() {
set.
dispose();
downstream.
onComplete();
}
}
}
}