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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.*;
import io.reactivex.rxjava3.functions.BiConsumer;
public final class SingleDoOnEvent extends Single {
final SingleSource source;
final BiConsumer super T, ? super Throwable> onEvent;
public SingleDoOnEvent(SingleSource source, BiConsumer super T, ? super Throwable> onEvent) {
this.source = source;
this.onEvent = onEvent;
}
@Override
protected void subscribeActual(final SingleObserver super T> observer) {
source.subscribe(new DoOnEvent(observer));
}
final class DoOnEvent implements SingleObserver {
private final SingleObserver super T> downstream;
DoOnEvent(SingleObserver super T> observer) {
this.downstream = observer;
}
@Override
public void onSubscribe(Disposable d) {
downstream.onSubscribe(d);
}
@Override
public void onSuccess(T value) {
try {
onEvent.accept(value, null);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
downstream.onError(ex);
return;
}
downstream.onSuccess(value);
}
@Override
public void onError(Throwable e) {
try {
onEvent.accept(null, e);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
e = new CompositeException(e, ex);
}
downstream.onError(e);
}
}
}
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