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/*
* 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
*
* 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 reactor.core.publisher;
import java.util.Objects;
import org.reactivestreams.Publisher;
import reactor.core.CoreSubscriber;
import reactor.core.Scannable;
import reactor.util.annotation.Nullable;
/**
* A connecting {@link Flux} Publisher (right-to-left from a composition chain perspective)
*
* @param Upstream type
*/
final class FluxSource extends Flux implements SourceProducer {
final Publisher source;
/**
* Build a {@link FluxSource} wrapper around the passed parent {@link Publisher}
*
* @param source the {@link Publisher} to decorate
*/
FluxSource(Publisher source) {
this.source = Objects.requireNonNull(source);
}
/**
* 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 actual) {
source.subscribe(actual);
}
@Override
@Nullable
public Object scanUnsafe(Attr key) {
if (key == Attr.PREFETCH) return getPrefetch();
if (key == Attr.PARENT) return source;
return null;
}
}