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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.mixed;
import io.reactivex.rxjava3.core.*;
import io.reactivex.rxjava3.disposables.Disposable;
import io.reactivex.rxjava3.internal.disposables.DisposableHelper;
/**
* A consumer that implements the consumer types of Maybe, Single and Completable
* and turns their signals into Notifications for a SingleObserver.
* History: 2.2.4 - experimental
* @param the element type of the source
* @since 3.0.0
*/
public final class MaterializeSingleObserver
implements SingleObserver, MaybeObserver, CompletableObserver, Disposable {
final SingleObserver super Notification> downstream;
Disposable upstream;
public MaterializeSingleObserver(SingleObserver super Notification> downstream) {
this.downstream = downstream;
}
@Override
public void onSubscribe(Disposable d) {
if (DisposableHelper.validate(upstream, d)) {
this.upstream = d;
downstream.onSubscribe(this);
}
}
@Override
public void onComplete() {
downstream.onSuccess(Notification.createOnComplete());
}
@Override
public void onSuccess(T t) {
downstream.onSuccess(Notification.createOnNext(t));
}
@Override
public void onError(Throwable e) {
downstream.onSuccess(Notification.createOnError(e));
}
@Override
public boolean isDisposed() {
return upstream.isDisposed();
}
@Override
public void dispose() {
upstream.dispose();
}
}