io.reactivex.rxjava3.internal.subscribers.DisposableAutoReleaseSubscriber Maven / Gradle / Ivy
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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.
*/
/*
* Copyright 2016-2019 David Karnok
*
* 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.subscribers;
import java.util.concurrent.atomic.AtomicReference;
import org.reactivestreams.Subscription;
import io.reactivex.rxjava3.core.FlowableSubscriber;
import io.reactivex.rxjava3.disposables.*;
import io.reactivex.rxjava3.exceptions.*;
import io.reactivex.rxjava3.functions.*;
import io.reactivex.rxjava3.internal.functions.Functions;
import io.reactivex.rxjava3.internal.subscriptions.SubscriptionHelper;
import io.reactivex.rxjava3.observers.LambdaConsumerIntrospection;
import io.reactivex.rxjava3.plugins.RxJavaPlugins;
/**
* Wraps lambda callbacks and when the upstream terminates or this subscriber gets disposed,
* removes itself from a {@link io.reactivex.rxjava3.disposables.CompositeDisposable}.
* History: 0.18.0 @ RxJavaExtensions
* @param the element type consumed
* @since 3.1.0
*/
public final class DisposableAutoReleaseSubscriber
extends AtomicReference
implements FlowableSubscriber, Disposable, LambdaConsumerIntrospection {
private static final long serialVersionUID = 8924480688481408726L;
final AtomicReference composite;
final Consumer super T> onNext;
final Consumer super Throwable> onError;
final Action onComplete;
public DisposableAutoReleaseSubscriber(
DisposableContainer composite,
Consumer super T> onNext,
Consumer super Throwable> onError,
Action onComplete
) {
this.onNext = onNext;
this.onError = onError;
this.onComplete = onComplete;
this.composite = new AtomicReference<>(composite);
}
@Override
public void onNext(T t) {
if (get() != SubscriptionHelper.CANCELLED) {
try {
onNext.accept(t);
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
get().cancel();
onError(e);
}
}
}
@Override
public void onError(Throwable t) {
if (get() != SubscriptionHelper.CANCELLED) {
lazySet(SubscriptionHelper.CANCELLED);
try {
onError.accept(t);
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
RxJavaPlugins.onError(new CompositeException(t, e));
}
} else {
RxJavaPlugins.onError(t);
}
removeSelf();
}
@Override
public void onComplete() {
if (get() != SubscriptionHelper.CANCELLED) {
lazySet(SubscriptionHelper.CANCELLED);
try {
onComplete.run();
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
RxJavaPlugins.onError(e);
}
}
removeSelf();
}
@Override
public void dispose() {
SubscriptionHelper.cancel(this);
removeSelf();
}
void removeSelf() {
DisposableContainer c = composite.getAndSet(null);
if (c != null) {
c.delete(this);
}
}
@Override
public boolean isDisposed() {
return SubscriptionHelper.CANCELLED == get();
}
@Override
public void onSubscribe(Subscription s) {
if (SubscriptionHelper.setOnce(this, s)) {
s.request(Long.MAX_VALUE);
}
}
@Override
public boolean hasCustomOnError() {
return onError != Functions.ON_ERROR_MISSING;
}
}