rx.internal.operators.SingleTakeUntilCompletable Maven / Gradle / Ivy
/**
* Copyright 2016 Netflix, Inc.
*
* 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 rx.internal.operators;
import java.util.concurrent.CancellationException;
import java.util.concurrent.atomic.AtomicBoolean;
import rx.*;
import rx.Single.OnSubscribe;
import rx.plugins.RxJavaHooks;
/**
* Relay the source signals if the other doesn't terminate before.
*
* @param the value type
*/
public final class SingleTakeUntilCompletable implements Single.OnSubscribe {
final Single.OnSubscribe source;
final Completable other;
public SingleTakeUntilCompletable(OnSubscribe source, Completable other) {
this.source = source;
this.other = other;
}
@Override
public void call(SingleSubscriber super T> t) {
TakeUntilSourceSubscriber parent = new TakeUntilSourceSubscriber(t);
t.add(parent);
other.subscribe(parent);
source.call(parent);
}
static final class TakeUntilSourceSubscriber extends SingleSubscriber
implements CompletableSubscriber {
final SingleSubscriber super T> actual;
final AtomicBoolean once;
TakeUntilSourceSubscriber(SingleSubscriber super T> actual) {
this.actual = actual;
this.once = new AtomicBoolean();
}
@Override
public void onSubscribe(Subscription d) {
add(d);
}
@Override
public void onSuccess(T value) {
if (once.compareAndSet(false, true)) {
unsubscribe();
actual.onSuccess(value);
}
}
@Override
public void onError(Throwable error) {
if (once.compareAndSet(false, true)) {
unsubscribe();
actual.onError(error);
} else {
RxJavaHooks.onError(error);
}
}
@Override
public void onCompleted() {
onError(new CancellationException("Single::takeUntil(Completable) - Stream was canceled before emitting a terminal event."));
}
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy