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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) 2016-2023 VMware Inc. or its affiliates, All Rights Reserved.
*
* 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
*
* https://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 reactor.core.publisher;
import java.util.Objects;
import java.util.Spliterator;
import java.util.function.Supplier;
import java.util.stream.Stream;
import reactor.core.CoreSubscriber;
import reactor.core.Fuseable;
/**
* Emits the contents of a Stream source.
*
* @param the value type
*
* @see Reactive-Streams-Commons
*/
final class FluxStream extends Flux implements Fuseable, SourceProducer {
final Supplier extends Stream extends T>> streamSupplier;
FluxStream(Supplier extends Stream extends T>> streamSupplier) {
this.streamSupplier = Objects.requireNonNull(streamSupplier, "streamSupplier");
}
@Override
public void subscribe(CoreSubscriber super T> actual) {
Stream extends T> stream;
try {
stream = Objects.requireNonNull(streamSupplier.get(),
"The stream supplier returned a null Stream");
}
catch (Throwable e) {
Operators.error(actual, Operators.onOperatorError(e, actual.currentContext()));
return;
}
Spliterator extends T> sp;
boolean knownToBeFinite;
try {
Spliterator extends T> spliterator = Objects.requireNonNull(stream.spliterator(),
"The stream returned a null Spliterator");
knownToBeFinite = spliterator.hasCharacteristics(Spliterator.SIZED);
sp = spliterator; //this is the default for BaseStream#iterator() anyway
}
catch (Throwable e) {
Operators.error(actual, Operators.onOperatorError(e, actual.currentContext()));
return;
}
//although not required by AutoCloseable, Stream::close SHOULD be idempotent
//(at least the default AbstractPipeline implementation is)
FluxIterable.subscribe(actual, sp, knownToBeFinite, stream::close);
}
@Override
public Object scanUnsafe(Attr key) {
if (key == Attr.RUN_STYLE) return Attr.RunStyle.SYNC;
return SourceProducer.super.scanUnsafe(key);
}
}
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