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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC

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/*
 * Copyright (c) 2016-present, RxJava Contributors.
 *
 * 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 io.reactivex.rxjava3.internal.operators.completable;

import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;

import io.reactivex.rxjava3.core.*;
import io.reactivex.rxjava3.disposables.Disposable;
import io.reactivex.rxjava3.internal.disposables.DisposableHelper;

public final class CompletableDelay extends Completable {

    final CompletableSource source;

    final long delay;

    final TimeUnit unit;

    final Scheduler scheduler;

    final boolean delayError;

    public CompletableDelay(CompletableSource source, long delay, TimeUnit unit, Scheduler scheduler, boolean delayError) {
        this.source = source;
        this.delay = delay;
        this.unit = unit;
        this.scheduler = scheduler;
        this.delayError = delayError;
    }

    @Override
    protected void subscribeActual(final CompletableObserver observer) {
        source.subscribe(new Delay(observer, delay, unit, scheduler, delayError));
    }

    static final class Delay extends AtomicReference
    implements CompletableObserver, Runnable, Disposable {

        private static final long serialVersionUID = 465972761105851022L;

        final CompletableObserver downstream;

        final long delay;

        final TimeUnit unit;

        final Scheduler scheduler;

        final boolean delayError;

        Throwable error;

        Delay(CompletableObserver downstream, long delay, TimeUnit unit, Scheduler scheduler, boolean delayError) {
            this.downstream = downstream;
            this.delay = delay;
            this.unit = unit;
            this.scheduler = scheduler;
            this.delayError = delayError;
        }

        @Override
        public void onSubscribe(Disposable d) {
            if (DisposableHelper.setOnce(this, d)) {
                downstream.onSubscribe(this);
            }
        }

        @Override
        public void onComplete() {
            DisposableHelper.replace(this, scheduler.scheduleDirect(this, delay, unit));
        }

        @Override
        public void onError(final Throwable e) {
            error = e;
            DisposableHelper.replace(this, scheduler.scheduleDirect(this, delayError ? delay : 0, unit));
        }

        @Override
        public void dispose() {
            DisposableHelper.dispose(this);
        }

        @Override
        public boolean isDisposed() {
            return DisposableHelper.isDisposed(get());
        }

        @Override
        public void run() {
            Throwable e = error;
            error = null;
            if (e != null) {
                downstream.onError(e);
            } else {
                downstream.onComplete();
            }
        }
    }
}