io.reactivex.rxjava3.internal.operators.completable.CompletableTakeUntilCompletable Maven / Gradle / Ivy
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/*
* 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.rxjava3.internal.operators.completable;
import java.util.concurrent.atomic.*;
import io.reactivex.rxjava3.core.*;
import io.reactivex.rxjava3.disposables.Disposable;
import io.reactivex.rxjava3.internal.disposables.DisposableHelper;
import io.reactivex.rxjava3.plugins.RxJavaPlugins;
/**
* Terminates the sequence if either the main or the other Completable terminate.
* History: 2.1.17 - experimental
* @since 2.2
*/
public final class CompletableTakeUntilCompletable extends Completable {
final Completable source;
final CompletableSource other;
public CompletableTakeUntilCompletable(Completable source,
CompletableSource other) {
this.source = source;
this.other = other;
}
@Override
protected void subscribeActual(CompletableObserver observer) {
TakeUntilMainObserver parent = new TakeUntilMainObserver(observer);
observer.onSubscribe(parent);
other.subscribe(parent.other);
source.subscribe(parent);
}
static final class TakeUntilMainObserver extends AtomicReference
implements CompletableObserver, Disposable {
private static final long serialVersionUID = 3533011714830024923L;
final CompletableObserver downstream;
final OtherObserver other;
final AtomicBoolean once;
TakeUntilMainObserver(CompletableObserver downstream) {
this.downstream = downstream;
this.other = new OtherObserver(this);
this.once = new AtomicBoolean();
}
@Override
public void dispose() {
if (once.compareAndSet(false, true)) {
DisposableHelper.dispose(this);
DisposableHelper.dispose(other);
}
}
@Override
public boolean isDisposed() {
return once.get();
}
@Override
public void onSubscribe(Disposable d) {
DisposableHelper.setOnce(this, d);
}
@Override
public void onComplete() {
if (once.compareAndSet(false, true)) {
DisposableHelper.dispose(other);
downstream.onComplete();
}
}
@Override
public void onError(Throwable e) {
if (once.compareAndSet(false, true)) {
DisposableHelper.dispose(other);
downstream.onError(e);
} else {
RxJavaPlugins.onError(e);
}
}
void innerComplete() {
if (once.compareAndSet(false, true)) {
DisposableHelper.dispose(this);
downstream.onComplete();
}
}
void innerError(Throwable e) {
if (once.compareAndSet(false, true)) {
DisposableHelper.dispose(this);
downstream.onError(e);
} else {
RxJavaPlugins.onError(e);
}
}
static final class OtherObserver extends AtomicReference
implements CompletableObserver {
private static final long serialVersionUID = 5176264485428790318L;
final TakeUntilMainObserver parent;
OtherObserver(TakeUntilMainObserver parent) {
this.parent = parent;
}
@Override
public void onSubscribe(Disposable d) {
DisposableHelper.setOnce(this, d);
}
@Override
public void onComplete() {
parent.innerComplete();
}
@Override
public void onError(Throwable e) {
parent.innerError(e);
}
}
}
}