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Reactive Extensions for Java
/**
* 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.observable;
import io.reactivex.*;
import io.reactivex.disposables.Disposable;
import io.reactivex.exceptions.Exceptions;
import io.reactivex.functions.Predicate;
import io.reactivex.internal.disposables.DisposableHelper;
import io.reactivex.internal.fuseable.FuseToObservable;
import io.reactivex.plugins.RxJavaPlugins;
public final class ObservableAllSingle extends Single implements FuseToObservable {
final ObservableSource source;
final Predicate predicate;
public ObservableAllSingle(ObservableSource source, Predicate predicate) {
this.source = source;
this.predicate = predicate;
}
@Override
protected void subscribeActual(SingleObserver t) {
source.subscribe(new AllObserver(t, predicate));
}
@Override
public Observable fuseToObservable() {
return RxJavaPlugins.onAssembly(new ObservableAll(source, predicate));
}
static final class AllObserver implements Observer, Disposable {
final SingleObserver downstream;
final Predicate predicate;
Disposable upstream;
boolean done;
AllObserver(SingleObserver actual, Predicate predicate) {
this.downstream = actual;
this.predicate = predicate;
}
@Override
public void onSubscribe(Disposable d) {
if (DisposableHelper.validate(this.upstream, d)) {
this.upstream = d;
downstream.onSubscribe(this);
}
}
@Override
public void onNext(T t) {
if (done) {
return;
}
boolean b;
try {
b = predicate.test(t);
} catch (Throwable e) {
Exceptions.throwIfFatal(e);
upstream.dispose();
onError(e);
return;
}
if (!b) {
done = true;
upstream.dispose();
downstream.onSuccess(false);
}
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
downstream.onError(t);
}
@Override
public void onComplete() {
if (done) {
return;
}
done = true;
downstream.onSuccess(true);
}
@Override
public void dispose() {
upstream.dispose();
}
@Override
public boolean isDisposed() {
return upstream.isDisposed();
}
}
}