/*
 * Copyright (c) 2011-2017 Pivotal Software Inc, 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 org.reactivestreams.Publisher;

import reactor.core.CorePublisher;
import reactor.core.CoreSubscriber;
import reactor.core.Fuseable;
import reactor.core.Scannable;
import reactor.util.annotation.Nullable;

Author:Stephane Maldini
/** * @author Stephane Maldini */
final class FluxSourceFuseable<I> extends Flux<I> implements Fuseable, SourceProducer<I>, OptimizableOperator<I, I> { final Publisher<? extends I> source; @Nullable final OptimizableOperator<?, I> optimizableOperator; FluxSourceFuseable(Publisher<? extends I> source) { this.source = Objects.requireNonNull(source); if (source instanceof OptimizableOperator) { @SuppressWarnings("unchecked") OptimizableOperator<?, I> optimSource = (OptimizableOperator<?, I>) source; this.optimizableOperator = optimSource; } else { this.optimizableOperator = null; } }
Default is simply delegating and decorating with Flux API. Note this assumes an identity between input and output types.
Params:
  • actual –
/** * Default is simply delegating and decorating with {@link Flux} API. Note this * assumes an identity between input and output types. * @param actual */
@Override @SuppressWarnings("unchecked") public void subscribe(CoreSubscriber<? super I> actual) { source.subscribe(actual); } @Override public CoreSubscriber<? super I> subscribeOrReturn(CoreSubscriber<? super I> actual) { return actual; } @Override public final CorePublisher<? extends I> source() { return this; } @Override public final OptimizableOperator<?, ? extends I> nextOptimizableSource() { return optimizableOperator; } @Override @Nullable public Object scanUnsafe(Scannable.Attr key) { if (key == Scannable.Attr.PREFETCH) return getPrefetch(); if (key == Scannable.Attr.PARENT) return source; if (key == Attr.RUN_STYLE) return Scannable.from(source).scanUnsafe(key); return null; } }