org.neo4j.driver.internal.shaded.reactor.core.publisher.ConnectableLift Maven / Gradle / Ivy
/*
* Copyright (c) 2016-2021 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.function.Consumer;
import reactor.core.CoreSubscriber;
import reactor.core.Disposable;
import reactor.core.Scannable;
import reactor.util.annotation.Nullable;
/**
* @author Simon Baslé
*/
final class ConnectableLift extends InternalConnectableFluxOperator implements Scannable {
final Operators.LiftFunction liftFunction;
ConnectableLift(ConnectableFlux p,
Operators.LiftFunction liftFunction) {
super(Objects.requireNonNull(p, "source"));
this.liftFunction = liftFunction;
}
@Override
public int getPrefetch() {
return source.getPrefetch();
}
@Override
public void connect(Consumer cancelSupport) {
this.source.connect(cancelSupport);
}
@Override
@Nullable
public Object scanUnsafe(Attr key) {
if (key == Attr.PREFETCH) return source.getPrefetch();
if (key == Attr.PARENT) return source;
if (key == Attr.RUN_STYLE) return Scannable.from(source).scanUnsafe(key);
if (key == Attr.LIFTER) return liftFunction.name;
return null;
}
@Override
public String stepName() {
if (source instanceof Scannable) {
return Scannable.from(source).stepName();
}
return super.stepName();
}
@Override
public final CoreSubscriber subscribeOrReturn(CoreSubscriber actual) {
CoreSubscriber input =
liftFunction.lifter.apply(source, actual);
Objects.requireNonNull(input, "Lifted subscriber MUST NOT be null");
return input;
}
}