/**
* 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.atomic.*;
import io.reactivex.*;
import io.reactivex.disposables.
Disposable;
import io.reactivex.internal.disposables.
DisposableHelper;
import io.reactivex.internal.util.*;
public final class
ObservableTakeUntil<T, U> extends
AbstractObservableWithUpstream<T, T> {
final
ObservableSource<? extends U>
other;
public
ObservableTakeUntil(
ObservableSource<T>
source,
ObservableSource<? extends U>
other) {
super(
source);
this.
other =
other;
}
@
Override
public void
subscribeActual(
Observer<? super T>
child) {
TakeUntilMainObserver<T, U>
parent = new
TakeUntilMainObserver<T, U>(
child);
child.
onSubscribe(
parent);
other.
subscribe(
parent.
otherObserver);
source.
subscribe(
parent);
}
static final class
TakeUntilMainObserver<T, U> extends
AtomicInteger
implements
Observer<T>,
Disposable {
private static final long
serialVersionUID = 1418547743690811973L;
final
Observer<? super T>
downstream;
final
AtomicReference<
Disposable>
upstream;
final
OtherObserver otherObserver;
final
AtomicThrowable error;
TakeUntilMainObserver(
Observer<? super T>
downstream) {
this.
downstream =
downstream;
this.
upstream = new
AtomicReference<
Disposable>();
this.
otherObserver = new
OtherObserver();
this.
error = new
AtomicThrowable();
}
@
Override
public void
dispose() {
DisposableHelper.
dispose(
upstream);
DisposableHelper.
dispose(
otherObserver);
}
@
Override
public boolean
isDisposed() {
return
DisposableHelper.
isDisposed(
upstream.
get());
}
@
Override
public void
onSubscribe(
Disposable d) {
DisposableHelper.
setOnce(
upstream,
d);
}
@
Override
public void
onNext(T
t) {
HalfSerializer.
onNext(
downstream,
t, this,
error);
}
@
Override
public void
onError(
Throwable e) {
DisposableHelper.
dispose(
otherObserver);
HalfSerializer.
onError(
downstream,
e, this,
error);
}
@
Override
public void
onComplete() {
DisposableHelper.
dispose(
otherObserver);
HalfSerializer.
onComplete(
downstream, this,
error);
}
void
otherError(
Throwable e) {
DisposableHelper.
dispose(
upstream);
HalfSerializer.
onError(
downstream,
e, this,
error);
}
void
otherComplete() {
DisposableHelper.
dispose(
upstream);
HalfSerializer.
onComplete(
downstream, this,
error);
}
final class
OtherObserver extends
AtomicReference<
Disposable>
implements
Observer<U> {
private static final long
serialVersionUID = -8693423678067375039L;
@
Override
public void
onSubscribe(
Disposable d) {
DisposableHelper.
setOnce(this,
d);
}
@
Override
public void
onNext(U
t) {
DisposableHelper.
dispose(this);
otherComplete();
}
@
Override
public void
onError(
Throwable e) {
otherError(
e);
}
@
Override
public void
onComplete() {
otherComplete();
}
}
}
}