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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC
/*
* 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.rxjava3.internal.operators.maybe;
import org.reactivestreams.Subscriber;
import io.reactivex.rxjava3.core.*;
import io.reactivex.rxjava3.disposables.Disposable;
import io.reactivex.rxjava3.internal.disposables.DisposableHelper;
import io.reactivex.rxjava3.internal.fuseable.HasUpstreamMaybeSource;
import io.reactivex.rxjava3.internal.subscriptions.DeferredScalarSubscription;
/**
* Wraps a MaybeSource and exposes it as a Flowable, relaying signals in a backpressure-aware manner
* and composes cancellation through.
*
* @param the value type
*/
public final class MaybeToFlowable extends Flowable implements HasUpstreamMaybeSource {
final MaybeSource source;
public MaybeToFlowable(MaybeSource source) {
this.source = source;
}
@Override
public MaybeSource source() {
return source;
}
@Override
protected void subscribeActual(Subscriber super T> s) {
source.subscribe(new MaybeToFlowableSubscriber<>(s));
}
static final class MaybeToFlowableSubscriber extends DeferredScalarSubscription
implements MaybeObserver {
private static final long serialVersionUID = 7603343402964826922L;
Disposable upstream;
MaybeToFlowableSubscriber(Subscriber super T> downstream) {
super(downstream);
}
@Override
public void onSubscribe(Disposable d) {
if (DisposableHelper.validate(this.upstream, d)) {
this.upstream = d;
downstream.onSubscribe(this);
}
}
@Override
public void onSuccess(T value) {
complete(value);
}
@Override
public void onError(Throwable e) {
downstream.onError(e);
}
@Override
public void onComplete() {
downstream.onComplete();
}
@Override
public void cancel() {
super.cancel();
upstream.dispose();
}
}
}
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