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/**
* Copyright 2014 Netflix, Inc.
*
* 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 rx.operators;
import rx.Notification;
import rx.Observable;
import rx.Observable.OnSubscribeFunc;
import rx.Observer;
import rx.Subscription;
/**
* Reverses the effect of {@link OperationMaterialize} by transforming the Notification objects
* emitted by a source Observable into the items or notifications they represent.
*
* 
*
* See here for the
* Microsoft Rx equivalent.
*/
public final class OperationDematerialize {
/**
* Dematerializes the explicit notification values of an observable sequence as implicit notifications.
*
* @param sequence
* An observable sequence containing explicit notification values which have to be turned into implicit notifications.
* @return An observable sequence exhibiting the behavior corresponding to the source sequence's notification values.
* @see Observable.Dematerialize(TSource) Method
*/
public static OnSubscribeFunc dematerialize(final Observable> sequence) {
return new DematerializeObservable(sequence);
}
private static class DematerializeObservable implements OnSubscribeFunc {
private final Observable> sequence;
public DematerializeObservable(Observable> sequence) {
this.sequence = sequence;
}
@Override
public Subscription onSubscribe(final Observer observer) {
return sequence.subscribe(new Observer>() {
@Override
public void onCompleted() {
}
@Override
public void onError(Throwable e) {
}
@Override
public void onNext(Notification value) {
switch (value.getKind()) {
case OnNext:
observer.onNext(value.getValue());
break;
case OnError:
observer.onError(value.getThrowable());
break;
case OnCompleted:
observer.onCompleted();
break;
}
}
});
}
}
}