rx.internal.operators.OperatorMapNotification Maven / Gradle / Ivy
Show all versions of rxjava-core Show documentation
/**
* 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.internal.operators;
import rx.Observable.Operator;
import rx.Subscriber;
import rx.exceptions.OnErrorThrowable;
import rx.functions.Func0;
import rx.functions.Func1;
/**
* Applies a function of your choosing to every item emitted by an {@code Observable}, and emits the results of
* this transformation as a new {@code Observable}.
*
* 
*/
public final class OperatorMapNotification implements Operator {
private final Func1 onNext;
private final Func1 onError;
private final Func0 onCompleted;
public OperatorMapNotification(Func1 onNext, Func1 onError, Func0 onCompleted) {
this.onNext = onNext;
this.onError = onError;
this.onCompleted = onCompleted;
}
@Override
public Subscriber call(final Subscriber o) {
return new Subscriber(o) {
@Override
public void onCompleted() {
try {
o.onNext(onCompleted.call());
o.onCompleted();
} catch (Throwable e) {
o.onError(e);
}
}
@Override
public void onError(Throwable e) {
try {
o.onNext(onError.call(e));
o.onCompleted();
} catch (Throwable e2) {
o.onError(e);
}
}
@Override
public void onNext(T t) {
try {
o.onNext(onNext.call(t));
} catch (Throwable e) {
o.onError(OnErrorThrowable.addValueAsLastCause(e, t));
}
}
};
}
}