/*
* Copyright (c) 2011-2017 Pivotal Software Inc, All Rights Reserved.
*
* 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 reactor.core.publisher;
import java.util.function.
Consumer;
import java.util.function.
LongConsumer;
import org.reactivestreams.
Subscription;
import reactor.core.
CoreSubscriber;
import reactor.core.
Fuseable;
import reactor.util.annotation.
Nullable;
/**
* Execute a Consumer in each 'rail' for the current element passing through.
*
* @param <T> the value type
*/
final class
ParallelPeek<T> extends
ParallelFlux<T> implements
SignalPeek<T>{
final
ParallelFlux<T>
source;
final
Consumer<? super T>
onNext;
final
Consumer<? super T>
onAfterNext;
final
Consumer<? super
Throwable>
onError;
final
Runnable onComplete;
final
Runnable onAfterTerminated;
final
Consumer<? super
Subscription>
onSubscribe;
final
LongConsumer onRequest;
final
Runnable onCancel;
ParallelPeek(
ParallelFlux<T>
source,
@
Nullable Consumer<? super T>
onNext,
@
Nullable Consumer<? super T>
onAfterNext,
@
Nullable Consumer<? super
Throwable>
onError,
@
Nullable Runnable onComplete,
@
Nullable Runnable onAfterTerminated,
@
Nullable Consumer<? super
Subscription>
onSubscribe,
@
Nullable LongConsumer onRequest,
@
Nullable Runnable onCancel
) {
this.
source =
source;
this.
onNext =
onNext;
this.
onAfterNext =
onAfterNext;
this.
onError =
onError;
this.
onComplete =
onComplete;
this.
onAfterTerminated =
onAfterTerminated;
this.
onSubscribe =
onSubscribe;
this.
onRequest =
onRequest;
this.
onCancel =
onCancel;
}
@
Override
@
SuppressWarnings("unchecked")
public void
subscribe(
CoreSubscriber<? super T>[]
subscribers) {
if (!
validate(
subscribers)) {
return;
}
int
n =
subscribers.length;
CoreSubscriber<? super T>[]
parents = new
CoreSubscriber[
n];
boolean
conditional =
subscribers[0] instanceof
Fuseable.
ConditionalSubscriber;
for (int
i = 0;
i <
n;
i++) {
if (
conditional) {
parents[
i] = new
FluxPeekFuseable.
PeekConditionalSubscriber<>(
(
Fuseable.
ConditionalSubscriber<T>)
subscribers[
i], this);
}
else {
parents[
i] = new
FluxPeek.
PeekSubscriber<>(
subscribers[
i], this);
}
}
source.
subscribe(
parents);
}
@
Override
public int
parallelism() {
return
source.
parallelism();
}
@
Override
public int
getPrefetch() {
return
source.
getPrefetch();
}
@
Override
@
Nullable
public
Consumer<? super
Subscription>
onSubscribeCall() {
return
onSubscribe;
}
@
Override
@
Nullable
public
Consumer<? super T>
onNextCall() {
return
onNext;
}
@
Override
@
Nullable
public
Consumer<? super
Throwable>
onErrorCall() {
return
onError;
}
@
Override
@
Nullable
public
Runnable onCompleteCall() {
return
onComplete;
}
@
Override
public
Runnable onAfterTerminateCall() {
return
onAfterTerminated;
}
@
Override
@
Nullable
public
LongConsumer onRequestCall() {
return
onRequest;
}
@
Override
@
Nullable
public
Runnable onCancelCall() {
return
onCancel;
}
@
Override
@
Nullable
public
Consumer<? super T>
onAfterNextCall() {
return
onAfterNext;
}
@
Override
@
Nullable
public
Object scanUnsafe(
Attr key) {
if (
key ==
Attr.
PARENT) return
source;
if (
key ==
Attr.
PREFETCH) return
getPrefetch();
return null;
}
}