/*
 * 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
 *
 *       https://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 org.reactivestreams.Subscription;
import reactor.core.CoreSubscriber;
import reactor.core.Fuseable;
import reactor.core.Scannable;
import reactor.util.annotation.Nullable;

Hides the identities of the upstream Publisher object and its Subscription as well.
Type parameters:
  • <T> – the value type
See Also:
/** * Hides the identities of the upstream Publisher object and its Subscription * as well. * * @param <T> the value type * @see <a href="https://github.com/reactor/reactive-streams-commons">Reactive-Streams-Commons</a> */
final class FluxHide<T> extends InternalFluxOperator<T, T> { FluxHide(Flux<? extends T> source) { super(source); } @Override public CoreSubscriber<? super T> subscribeOrReturn(CoreSubscriber<? super T> actual) { return new HideSubscriber<>(actual); } @Override public Object scanUnsafe(Attr key) { if (key == Attr.RUN_STYLE) return Attr.RunStyle.SYNC; return super.scanUnsafe(key); } static final class HideSubscriber<T> implements InnerOperator<T, T> { final CoreSubscriber<? super T> actual; Subscription s; HideSubscriber(CoreSubscriber<? super T> actual) { this.actual = actual; } @Override public CoreSubscriber<? super T> actual() { return actual; } @Override public void request(long n) { s.request(n); } @Override public void cancel() { s.cancel(); } @Override public void onSubscribe(Subscription s) { this.s = s; actual.onSubscribe(this); } @Override public void onNext(T t) { actual.onNext(t); } @Override public void onError(Throwable t) { actual.onError(t); } @Override public void onComplete() { actual.onComplete(); } @Override @Nullable public Object scanUnsafe(Attr key) { if (key == Attr.PARENT) return s; if (key == Attr.RUN_STYLE) return Attr.RunStyle.SYNC; return InnerOperator.super.scanUnsafe(key); } } static final class SuppressFuseableSubscriber<T> implements InnerOperator<T, T>, Fuseable.QueueSubscription<T> { final CoreSubscriber<? super T> actual; Subscription s; SuppressFuseableSubscriber(CoreSubscriber<? super T> actual) { this.actual = actual; } @Override public void onSubscribe(Subscription s) { if (Operators.validate(this.s, s)) { this.s = s; actual.onSubscribe(this); } } @Override @Nullable public Object scanUnsafe(Attr key) { if (key == Attr.PARENT) return s; if (key == Attr.RUN_STYLE) return Attr.RunStyle.SYNC; return InnerOperator.super.scanUnsafe(key); } @Override public void onNext(T t) { actual.onNext(t); } @Override public void onError(Throwable t) { actual.onError(t); } @Override public void onComplete() { actual.onComplete(); } @Override public void request(long n) { s.request(n); } @Override public void cancel() { s.cancel(); } @Override public int requestFusion(int requestedMode) { return Fuseable.NONE; } @Override @Nullable public T poll() { return null; } @Override public boolean isEmpty() { return false; } @Override public void clear() { } @Override public int size() { return 0; } @Override public CoreSubscriber<? super T> actual() { return actual; } } }