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/*
 * Copyright (c) 2016-2022 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.function.Consumer;

import reactor.core.CoreSubscriber;

/**
 * Hook into the lifecycle events and signals of a {@link Mono} 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}).
 * 

* Note that any exception thrown by the hook are caught and bubbled up * using {@link Operators#onErrorDropped(Throwable, reactor.util.context.Context)}. * * @param the value type * @author Simon Baslé */ final class MonoDoFinally extends InternalMonoOperator { final Consumer onFinally; MonoDoFinally(Mono source, Consumer onFinally) { super(source); this.onFinally = onFinally; } @Override public CoreSubscriber subscribeOrReturn(CoreSubscriber actual) { return FluxDoFinally.createSubscriber(actual, onFinally); } @Override public Object scanUnsafe(Attr key) { if (key == Attr.RUN_STYLE) return Attr.RunStyle.SYNC; return super.scanUnsafe(key); } }





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