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rxjava-core developed by Netflix
/**
* 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.Observable.Operator;
import rx.Observer;
import rx.Subscriber;
import rx.exceptions.OnErrorThrowable;
/**
* Converts the elements of an observable sequence to the specified type.
*/
public class OperatorDoOnEach implements Operator {
private final Observer super T> doOnEachObserver;
public OperatorDoOnEach(Observer super T> doOnEachObserver) {
this.doOnEachObserver = doOnEachObserver;
}
@Override
public Subscriber super T> call(final Subscriber super T> observer) {
return new Subscriber(observer) {
@Override
public void onCompleted() {
try {
doOnEachObserver.onCompleted();
} catch (Throwable e) {
onError(e);
return;
}
observer.onCompleted();
}
@Override
public void onError(Throwable e) {
try {
doOnEachObserver.onError(e);
} catch (Throwable e2) {
observer.onError(e2);
return;
}
observer.onError(e);
}
@Override
public void onNext(T value) {
try {
doOnEachObserver.onNext(value);
} catch (Throwable e) {
onError(OnErrorThrowable.addValueAsLastCause(e, value));
return;
}
observer.onNext(value);
}
};
}
}
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