/*
 * 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
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package reactor.core.publisher;

import java.util.function.Consumer;

import reactor.core.CoreSubscriber;
import reactor.core.Fuseable;

Hook with fusion into the lifecycle events and signals of a Flux and execute a provided callback after any of onComplete, onError and cancel events. The hook is executed only once and receives the event type that triggered it (SignalType.ON_COMPLETE, SignalType.ON_ERROR or SignalType.CANCEL).

Note that any exception thrown by the hook are caught and bubbled up using Operators.onErrorDropped(Throwable, Context).

Author:Simon Baslé
Type parameters:
  • <T> – the value type
/** * Hook with fusion into the lifecycle events and signals of a {@link Flux} * and execute a provided callback after any of onComplete, onError and cancel events. * The hook is executed only once and receives the event type that triggered * it ({@link SignalType#ON_COMPLETE}, {@link SignalType#ON_ERROR} or * {@link SignalType#CANCEL}). * <p> * Note that any exception thrown by the hook are caught and bubbled up * using {@link Operators#onErrorDropped(Throwable, reactor.util.context.Context)}. * * @param <T> the value type * @author Simon Baslé */
final class FluxDoFinallyFuseable<T> extends InternalFluxOperator<T, T> implements Fuseable { final Consumer<SignalType> onFinally; FluxDoFinallyFuseable(Flux<? extends T> source, Consumer<SignalType> onFinally) { super(source); this.onFinally = onFinally; } @Override public CoreSubscriber<? super T> subscribeOrReturn(CoreSubscriber<? super T> actual) { return FluxDoFinally.createSubscriber(actual, onFinally, true); } @Override public Object scanUnsafe(Attr key) { if (key == Attr.RUN_STYLE) return Attr.RunStyle.SYNC; return super.scanUnsafe(key); } }