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2.x: Dedicated {Single|Maybe}.flatMap{Publisher|Observable} & andThen(Observable|Publisher) implementations #6024
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101 changes: 101 additions & 0 deletions
101
src/main/java/io/reactivex/internal/operators/mixed/CompletableAndThenObservable.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| /** | ||
| * 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. | ||
| */ | ||
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| package io.reactivex.internal.operators.mixed; | ||
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| import java.util.concurrent.atomic.AtomicReference; | ||
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| import io.reactivex.*; | ||
| import io.reactivex.disposables.Disposable; | ||
| import io.reactivex.internal.disposables.DisposableHelper; | ||
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| /** | ||
| * 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> { | ||
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| final CompletableSource source; | ||
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| final ObservableSource<? extends R> other; | ||
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| public CompletableAndThenObservable(CompletableSource source, | ||
| ObservableSource<? extends R> other) { | ||
| this.source = source; | ||
| this.other = other; | ||
| } | ||
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| @Override | ||
| protected void subscribeActual(Observer<? super R> s) { | ||
| AndThenObservableObserver<R> parent = new AndThenObservableObserver<R>(s, other); | ||
| s.onSubscribe(parent); | ||
| source.subscribe(parent); | ||
| } | ||
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| static final class AndThenObservableObserver<R> | ||
| extends AtomicReference<Disposable> | ||
| implements Observer<R>, CompletableObserver, Disposable { | ||
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| private static final long serialVersionUID = -8948264376121066672L; | ||
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| final Observer<? super R> downstream; | ||
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| ObservableSource<? extends R> other; | ||
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| AndThenObservableObserver(Observer<? super R> downstream, ObservableSource<? extends R> other) { | ||
| this.other = other; | ||
| this.downstream = downstream; | ||
| } | ||
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| @Override | ||
| public void onNext(R t) { | ||
| downstream.onNext(t); | ||
| } | ||
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| @Override | ||
| public void onError(Throwable t) { | ||
| downstream.onError(t); | ||
| } | ||
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| @Override | ||
| public void onComplete() { | ||
| ObservableSource<? extends R> p = other; | ||
| if (p == null) { | ||
| downstream.onComplete(); | ||
| } else { | ||
| other = null; | ||
| p.subscribe(this); | ||
| } | ||
| } | ||
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| @Override | ||
| public void dispose() { | ||
| DisposableHelper.dispose(this); | ||
| } | ||
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| @Override | ||
| public boolean isDisposed() { | ||
| return DisposableHelper.isDisposed(get()); | ||
| } | ||
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| @Override | ||
| public void onSubscribe(Disposable d) { | ||
| DisposableHelper.replace(this, d); | ||
| } | ||
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| } | ||
| } | ||
114 changes: 114 additions & 0 deletions
114
src/main/java/io/reactivex/internal/operators/mixed/CompletableAndThenPublisher.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| /** | ||
| * 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. | ||
| */ | ||
|
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| package io.reactivex.internal.operators.mixed; | ||
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| import java.util.concurrent.atomic.*; | ||
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| import org.reactivestreams.*; | ||
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| import io.reactivex.*; | ||
| import io.reactivex.disposables.Disposable; | ||
| import io.reactivex.internal.disposables.DisposableHelper; | ||
| import io.reactivex.internal.subscriptions.SubscriptionHelper; | ||
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| /** | ||
| * After Completable completes, it relays the signals | ||
| * of the Publisher to the downstream subscriber. | ||
| * | ||
| * @param <R> the result type of the Publisher and this operator | ||
| * @since 2.1.15 | ||
| */ | ||
| public final class CompletableAndThenPublisher<R> extends Flowable<R> { | ||
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| final CompletableSource source; | ||
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| final Publisher<? extends R> other; | ||
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| public CompletableAndThenPublisher(CompletableSource source, | ||
| Publisher<? extends R> other) { | ||
| this.source = source; | ||
| this.other = other; | ||
| } | ||
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| @Override | ||
| protected void subscribeActual(Subscriber<? super R> s) { | ||
| source.subscribe(new AndThenPublisherSubscriber<R>(s, other)); | ||
| } | ||
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| static final class AndThenPublisherSubscriber<R> | ||
| extends AtomicReference<Subscription> | ||
| implements FlowableSubscriber<R>, CompletableObserver, Subscription { | ||
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| private static final long serialVersionUID = -8948264376121066672L; | ||
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| final Subscriber<? super R> downstream; | ||
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| Publisher<? extends R> other; | ||
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| Disposable upstream; | ||
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| final AtomicLong requested; | ||
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| AndThenPublisherSubscriber(Subscriber<? super R> downstream, Publisher<? extends R> other) { | ||
| this.downstream = downstream; | ||
| this.other = other; | ||
| this.requested = new AtomicLong(); | ||
| } | ||
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| @Override | ||
| public void onNext(R t) { | ||
| downstream.onNext(t); | ||
| } | ||
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| @Override | ||
| public void onError(Throwable t) { | ||
| downstream.onError(t); | ||
| } | ||
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| @Override | ||
| public void onComplete() { | ||
| Publisher<? extends R> p = other; | ||
| if (p == null) { | ||
| downstream.onComplete(); | ||
| } else { | ||
| other = null; | ||
| p.subscribe(this); | ||
| } | ||
| } | ||
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| @Override | ||
| public void request(long n) { | ||
| SubscriptionHelper.deferredRequest(this, requested, n); | ||
| } | ||
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| @Override | ||
| public void cancel() { | ||
| upstream.dispose(); | ||
| SubscriptionHelper.cancel(this); | ||
| } | ||
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| @Override | ||
| public void onSubscribe(Disposable d) { | ||
| if (DisposableHelper.validate(upstream, d)) { | ||
| this.upstream = d; | ||
| downstream.onSubscribe(this); | ||
| } | ||
| } | ||
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| @Override | ||
| public void onSubscribe(Subscription s) { | ||
| SubscriptionHelper.deferredSetOnce(this, requested, s); | ||
| } | ||
| } | ||
| } |
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