/*
* 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;
Ignores normal values and passes only the terminal signals along.
Type parameters: - <T> – the value type
See Also:
/**
* Ignores normal values and passes only the terminal signals along.
*
* @param <T> the value type
* @see <a href="https://github.com/reactor/reactive-streams-commons">Reactive-Streams-Commons</a>
*/
final class MonoIgnorePublisher<T> extends Mono<T> implements Scannable {
final Publisher<? extends T> source;
MonoIgnorePublisher(Publisher<? extends T> source) {
this.source = Objects.requireNonNull(source, "publisher");
}
@Override
public void subscribe(CoreSubscriber<? super T> actual) {
source.subscribe(new MonoIgnoreElements.IgnoreElementsSubscriber<>(actual));
}
@Override
@Nullable
public Object scanUnsafe(Scannable.Attr key) {
if (key == Scannable.Attr.PARENT) {
return source;
}
return null;
}
}