/*
* 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.
Objects;
import java.util.function.
Function;
import reactor.core.
CoreSubscriber;
import reactor.core.
Fuseable;
/**
* Maps the values of the source publisher one-on-one via a mapper function.
* <p>
* This variant allows composing fuseable stages.
*
* @param <T> the source value type
* @param <R> the result value type
* @see <a href="https://github.com/reactor/reactive-streams-commons">Reactive-Streams-Commons</a>
*/
final class
MonoMapFuseable<T, R> extends
MonoOperator<T, R>
implements
Fuseable {
final
Function<? super T, ? extends R>
mapper;
/**
* Constructs a StreamMap instance with the given source and mapper.
*
* @param source the source Publisher instance
* @param mapper the mapper function
* @throws NullPointerException if either {@code source} or {@code mapper} is null.
*/
MonoMapFuseable(
Mono<? extends T>
source,
Function<? super T, ? extends R>
mapper) {
super(
source);
this.
mapper =
Objects.
requireNonNull(
mapper, "mapper");
}
@
Override
@
SuppressWarnings("unchecked")
public void
subscribe(
CoreSubscriber<? super R>
actual) {
if (
actual instanceof
ConditionalSubscriber) {
ConditionalSubscriber<? super R>
cs = (
ConditionalSubscriber<? super R>)
actual;
source.
subscribe(new
FluxMapFuseable.
MapFuseableConditionalSubscriber<>(
cs,
mapper));
return;
}
source.
subscribe(new
FluxMapFuseable.
MapFuseableSubscriber<>(
actual,
mapper));
}
}