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.
/** * 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.single; import java.util.concurrent.atomic.AtomicReference; import io.reactivex.*; import io.reactivex.disposables.Disposable; import io.reactivex.internal.disposables.DisposableHelper; public final class SingleObserveOn<T> extends Single<T> { final SingleSource<T> source; final Scheduler scheduler; public SingleObserveOn(SingleSource<T> source, Scheduler scheduler) { this.source = source; this.scheduler = scheduler; } @Override protected void subscribeActual(final SingleObserver<? super T> observer) { source.subscribe(new ObserveOnSingleObserver<T>(observer, scheduler)); } static final class ObserveOnSingleObserver<T> extends AtomicReference<Disposable> implements SingleObserver<T>, Disposable, Runnable { private static final long serialVersionUID = 3528003840217436037L; final SingleObserver<? super T> downstream; final Scheduler scheduler; T value; Throwable error; ObserveOnSingleObserver(SingleObserver<? super T> actual, Scheduler scheduler) { this.downstream = actual; this.scheduler = scheduler; } @Override public void onSubscribe(Disposable d) { if (DisposableHelper.setOnce(this, d)) { downstream.onSubscribe(this); } } @Override public void onSuccess(T value) { this.value = value; Disposable d = scheduler.scheduleDirect(this); DisposableHelper.replace(this, d); } @Override public void onError(Throwable e) { this.error = e; Disposable d = scheduler.scheduleDirect(this); DisposableHelper.replace(this, d); } @Override public void run() { Throwable ex = error; if (ex != null) { downstream.onError(ex); } else { downstream.onSuccess(value); } } @Override public void dispose() { DisposableHelper.dispose(this); } @Override public boolean isDisposed() { return DisposableHelper.isDisposed(get()); } } }