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Reactive Extensions for Java
/**
* 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.internal.operators.single;
import io.reactivex.Single;
import io.reactivex.SingleObserver;
import io.reactivex.SingleSource;
import io.reactivex.disposables.Disposable;
import io.reactivex.exceptions.CompositeException;
import io.reactivex.exceptions.Exceptions;
import io.reactivex.functions.Action;
public final class SingleDoOnTerminate extends Single {
final SingleSource source;
final Action onTerminate;
public SingleDoOnTerminate(SingleSource source, Action onTerminate) {
this.source = source;
this.onTerminate = onTerminate;
}
@Override
protected void subscribeActual(final SingleObserver super T> observer) {
source.subscribe(new DoOnTerminate(observer));
}
final class DoOnTerminate implements SingleObserver {
final SingleObserver super T> downstream;
DoOnTerminate(SingleObserver super T> observer) {
this.downstream = observer;
}
@Override
public void onSubscribe(Disposable d) {
downstream.onSubscribe(d);
}
@Override
public void onSuccess(T value) {
try {
onTerminate.run();
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
downstream.onError(ex);
return;
}
downstream.onSuccess(value);
}
@Override
public void onError(Throwable e) {
try {
onTerminate.run();
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
e = new CompositeException(e, ex);
}
downstream.onError(e);
}
}
}
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