io.reactivex.internal.operators.observable.ObservableSampleWithObservable Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of rxjava Show documentation
Show all versions of rxjava Show documentation
Reactive Extensions for Java
/**
* 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.observers.SerializedObserver;
public final class ObservableSampleWithObservable extends AbstractObservableWithUpstream {
final ObservableSource> other;
final boolean emitLast;
public ObservableSampleWithObservable(ObservableSource source, ObservableSource> other, boolean emitLast) {
super(source);
this.other = other;
this.emitLast = emitLast;
}
@Override
public void subscribeActual(Observer super T> t) {
SerializedObserver serial = new SerializedObserver(t);
if (emitLast) {
source.subscribe(new SampleMainEmitLast(serial, other));
} else {
source.subscribe(new SampleMainNoLast(serial, other));
}
}
abstract static class SampleMainObserver extends AtomicReference
implements Observer, Disposable {
private static final long serialVersionUID = -3517602651313910099L;
final Observer super T> downstream;
final ObservableSource> sampler;
final AtomicReference other = new AtomicReference();
Disposable upstream;
SampleMainObserver(Observer super T> actual, ObservableSource> other) {
this.downstream = actual;
this.sampler = other;
}
@Override
public void onSubscribe(Disposable d) {
if (DisposableHelper.validate(this.upstream, d)) {
this.upstream = d;
downstream.onSubscribe(this);
if (other.get() == null) {
sampler.subscribe(new SamplerObserver(this));
}
}
}
@Override
public void onNext(T t) {
lazySet(t);
}
@Override
public void onError(Throwable t) {
DisposableHelper.dispose(other);
downstream.onError(t);
}
@Override
public void onComplete() {
DisposableHelper.dispose(other);
completion();
}
boolean setOther(Disposable o) {
return DisposableHelper.setOnce(other, o);
}
@Override
public void dispose() {
DisposableHelper.dispose(other);
upstream.dispose();
}
@Override
public boolean isDisposed() {
return other.get() == DisposableHelper.DISPOSED;
}
public void error(Throwable e) {
upstream.dispose();
downstream.onError(e);
}
public void complete() {
upstream.dispose();
completion();
}
void emit() {
T value = getAndSet(null);
if (value != null) {
downstream.onNext(value);
}
}
abstract void completion();
abstract void run();
}
static final class SamplerObserver implements Observer
© 2015 - 2024 Weber Informatics LLC | Privacy Policy