/**
* 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.mixed;
import java.util.concurrent.atomic.
AtomicReference;
import io.reactivex.*;
import io.reactivex.disposables.
Disposable;
import io.reactivex.internal.disposables.
DisposableHelper;
/**
* After Completable completes, it relays the signals
* of the ObservableSource to the downstream observer.
*
* @param <R> the result type of the ObservableSource and this operator
* @since 2.1.15
*/
public final class
CompletableAndThenObservable<R> extends
Observable<R> {
final
CompletableSource source;
final
ObservableSource<? extends R>
other;
public
CompletableAndThenObservable(
CompletableSource source,
ObservableSource<? extends R>
other) {
this.
source =
source;
this.
other =
other;
}
@
Override
protected void
subscribeActual(
Observer<? super R>
observer) {
AndThenObservableObserver<R>
parent = new
AndThenObservableObserver<R>(
observer,
other);
observer.
onSubscribe(
parent);
source.
subscribe(
parent);
}
static final class
AndThenObservableObserver<R>
extends
AtomicReference<
Disposable>
implements
Observer<R>,
CompletableObserver,
Disposable {
private static final long
serialVersionUID = -8948264376121066672L;
final
Observer<? super R>
downstream;
ObservableSource<? extends R>
other;
AndThenObservableObserver(
Observer<? super R>
downstream,
ObservableSource<? extends R>
other) {
this.
other =
other;
this.
downstream =
downstream;
}
@
Override
public void
onNext(R
t) {
downstream.
onNext(
t);
}
@
Override
public void
onError(
Throwable t) {
downstream.
onError(
t);
}
@
Override
public void
onComplete() {
ObservableSource<? extends R>
o =
other;
if (
o == null) {
downstream.
onComplete();
} else {
other = null;
o.
subscribe(this);
}
}
@
Override
public void
dispose() {
DisposableHelper.
dispose(this);
}
@
Override
public boolean
isDisposed() {
return
DisposableHelper.
isDisposed(
get());
}
@
Override
public void
onSubscribe(
Disposable d) {
DisposableHelper.
replace(this,
d);
}
}
}