io.reactivex.rxjava3.internal.operators.single.SingleDoAfterTerminate 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.
*/
package io.reactivex.rxjava3.internal.operators.single;
import io.reactivex.rxjava3.core.*;
import io.reactivex.rxjava3.disposables.Disposable;
import io.reactivex.rxjava3.exceptions.Exceptions;
import io.reactivex.rxjava3.functions.Action;
import io.reactivex.rxjava3.internal.disposables.DisposableHelper;
import io.reactivex.rxjava3.plugins.RxJavaPlugins;
/**
* Calls an action after pushing the current item or an error to the downstream.
* History: 2.0.6 - experimental
* @param the value type
* @since 2.1
*/
public final class SingleDoAfterTerminate extends Single {
final SingleSource source;
final Action onAfterTerminate;
public SingleDoAfterTerminate(SingleSource source, Action onAfterTerminate) {
this.source = source;
this.onAfterTerminate = onAfterTerminate;
}
@Override
protected void subscribeActual(SingleObserver super T> observer) {
source.subscribe(new DoAfterTerminateObserver<>(observer, onAfterTerminate));
}
static final class DoAfterTerminateObserver implements SingleObserver, Disposable {
final SingleObserver super T> downstream;
final Action onAfterTerminate;
Disposable upstream;
DoAfterTerminateObserver(SingleObserver super T> actual, Action onAfterTerminate) {
this.downstream = actual;
this.onAfterTerminate = onAfterTerminate;
}
@Override
public void onSubscribe(Disposable d) {
if (DisposableHelper.validate(this.upstream, d)) {
this.upstream = d;
downstream.onSubscribe(this);
}
}
@Override
public void onSuccess(T t) {
downstream.onSuccess(t);
onAfterTerminate();
}
@Override
public void onError(Throwable e) {
downstream.onError(e);
onAfterTerminate();
}
@Override
public void dispose() {
upstream.dispose();
}
@Override
public boolean isDisposed() {
return upstream.isDisposed();
}
private void onAfterTerminate() {
try {
onAfterTerminate.run();
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
RxJavaPlugins.onError(ex);
}
}
}
}