/**
* 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.atomic.*;
import io.reactivex.*;
import io.reactivex.disposables.
Disposable;
import io.reactivex.internal.disposables.
DisposableHelper;
import io.reactivex.plugins.
RxJavaPlugins;
/**
* Terminates the sequence if either the main or the other Completable terminate.
* <p>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<
Disposable>
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<
Disposable>
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);
}
}
}
}