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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC
/*
* 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.parallel;
import org.reactivestreams.*;
import io.reactivex.rxjava3.core.FlowableSubscriber;
import io.reactivex.rxjava3.exceptions.*;
import io.reactivex.rxjava3.functions.*;
import io.reactivex.rxjava3.internal.subscriptions.*;
import io.reactivex.rxjava3.parallel.ParallelFlowable;
import io.reactivex.rxjava3.plugins.RxJavaPlugins;
import java.util.Objects;
/**
* Execute a Consumer in each 'rail' for the current element passing through.
*
* @param the value type
*/
public final class ParallelPeek extends ParallelFlowable {
final ParallelFlowable source;
final Consumer super T> onNext;
final Consumer super T> onAfterNext;
final Consumer super Throwable> onError;
final Action onComplete;
final Action onAfterTerminated;
final Consumer super Subscription> onSubscribe;
final LongConsumer onRequest;
final Action onCancel;
public ParallelPeek(ParallelFlowable source,
Consumer super T> onNext,
Consumer super T> onAfterNext,
Consumer super Throwable> onError,
Action onComplete,
Action onAfterTerminated,
Consumer super Subscription> onSubscribe,
LongConsumer onRequest,
Action onCancel
) {
this.source = source;
this.onNext = Objects.requireNonNull(onNext, "onNext is null");
this.onAfterNext = Objects.requireNonNull(onAfterNext, "onAfterNext is null");
this.onError = Objects.requireNonNull(onError, "onError is null");
this.onComplete = Objects.requireNonNull(onComplete, "onComplete is null");
this.onAfterTerminated = Objects.requireNonNull(onAfterTerminated, "onAfterTerminated is null");
this.onSubscribe = Objects.requireNonNull(onSubscribe, "onSubscribe is null");
this.onRequest = Objects.requireNonNull(onRequest, "onRequest is null");
this.onCancel = Objects.requireNonNull(onCancel, "onCancel is null");
}
@Override
public void subscribe(Subscriber super T>[] subscribers) {
subscribers = RxJavaPlugins.onSubscribe(this, subscribers);
if (!validate(subscribers)) {
return;
}
int n = subscribers.length;
@SuppressWarnings("unchecked")
Subscriber super T>[] parents = new Subscriber[n];
for (int i = 0; i < n; i++) {
parents[i] = new ParallelPeekSubscriber<>(subscribers[i], this);
}
source.subscribe(parents);
}
@Override
public int parallelism() {
return source.parallelism();
}
static final class ParallelPeekSubscriber implements FlowableSubscriber, Subscription {
final Subscriber super T> downstream;
final ParallelPeek parent;
Subscription upstream;
boolean done;
ParallelPeekSubscriber(Subscriber super T> actual, ParallelPeek parent) {
this.downstream = actual;
this.parent = parent;
}
@Override
public void request(long n) {
try {
parent.onRequest.accept(n);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
RxJavaPlugins.onError(ex);
}
upstream.request(n);
}
@Override
public void cancel() {
try {
parent.onCancel.run();
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
RxJavaPlugins.onError(ex);
}
upstream.cancel();
}
@Override
public void onSubscribe(Subscription s) {
if (SubscriptionHelper.validate(this.upstream, s)) {
this.upstream = s;
try {
parent.onSubscribe.accept(s);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
s.cancel();
downstream.onSubscribe(EmptySubscription.INSTANCE);
onError(ex);
return;
}
downstream.onSubscribe(this);
}
}
@Override
public void onNext(T t) {
if (!done) {
try {
parent.onNext.accept(t);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
onError(ex);
return;
}
downstream.onNext(t);
try {
parent.onAfterNext.accept(t);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
onError(ex);
}
}
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
try {
parent.onError.accept(t);
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
t = new CompositeException(t, ex);
}
downstream.onError(t);
try {
parent.onAfterTerminated.run();
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
RxJavaPlugins.onError(ex);
}
}
@Override
public void onComplete() {
if (!done) {
done = true;
try {
parent.onComplete.run();
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
downstream.onError(ex);
return;
}
downstream.onComplete();
try {
parent.onAfterTerminated.run();
} catch (Throwable ex) {
Exceptions.throwIfFatal(ex);
RxJavaPlugins.onError(ex);
}
}
}
}
}
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