/*
* 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 reactor.core.
CoreSubscriber;
/**
* Repeatedly subscribes to the source and relays its values either
* indefinitely or a fixed number of times.
* <p>
* The times == Long.MAX_VALUE is treated as infinite repeat. Times = 1 mirrors the source
* (the "original" run) and then repeats it once more. Callers should take care of times =
* 0 and times = -1 cases, which should map to replaying the source and an empty sequence,
* respectively.
*
* @param <T> the value type
* @see <a href="https://github.com/reactor/reactive-streams-commons">Reactive-Streams-Commons</a>
*/
final class
MonoRepeat<T> extends
FluxFromMonoOperator<T, T> {
final long
times;
MonoRepeat(
Mono<? extends T>
source, long
times) {
super(
source);
if (
times <= 0L) {
throw new
IllegalArgumentException("times > 0 required");
}
this.
times =
times;
}
@
Override
public void
subscribe(
CoreSubscriber<? super T>
actual) {
FluxRepeat.
RepeatSubscriber<T>
parent =
new
FluxRepeat.
RepeatSubscriber<>(
source,
actual,
times + 1);
actual.
onSubscribe(
parent);
if (!
parent.
isCancelled()) {
parent.
onComplete();
}
}
}