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BlockingMonoSubscriber.java
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BlockingMonoSubscriber.java
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/*
* Copyright (c) 2016-2023 VMware Inc. or its affiliates, 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 reactor.util.context.Context;
/**
* Blocks assuming the upstream is a Mono, until it signals its value or completes.
* Compared to {@link BlockingFirstSubscriber}, this variant doesn't cancel the upstream
* in onNext.
*
* @param <T> the value type
* @see <a href="https://github.com/reactor/reactive-streams-commons">https://github.com/reactor/reactive-streams-commons</a>
*/
final class BlockingMonoSubscriber<T> extends BlockingSingleSubscriber<T> {
public BlockingMonoSubscriber(Context context) {
super(context);
}
@Override
public void onNext(T t) {
if (value == null) {
value = t;
countDown();
}
}
@Override
public void onError(Throwable t) {
if (value == null) {
error = t;
}
countDown();
}
@Override
public String stepName() {
return "block";
}
}