/**
* 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.
BiConsumer;
public final class
SingleDoOnEvent<T> extends
Single<T> {
final
SingleSource<T>
source;
final
BiConsumer<? super T, ? super
Throwable>
onEvent;
public
SingleDoOnEvent(
SingleSource<T>
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<T> {
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);
}
}
}