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The module for FunctionalJ Core.
// ============================================================================
// Copyright (c) 2017-2021 Nawapunth Manusitthipol (NawaMan - http://nawaman.net).
// ----------------------------------------------------------------------------
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// ============================================================================
package functionalj.promise;
import static java.util.Objects.requireNonNull;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Consumer;
import functionalj.result.Result;
public class SubscriptionHolder extends SubscriptionRecord {
private final AtomicReference>> consumer = new AtomicReference>>(null);
private final SubscriptionRecord subscription;
SubscriptionHolder(boolean isEavesdropping, Wait wait, Promise promise) {
super(promise);
this.subscription = promise.doSubscribe(isEavesdropping, requireNonNull(wait), result -> {
Consumer> consumer = this.consumer.get();
if (consumer != null)
consumer.accept(result);
});
}
public Consumer> getConsumer() {
return this.consumer.get();
}
public SubscriptionHolder assign(Consumer> consumer) {
Result result = subscription.getPromise().getCurrentResult();
this.consumer.set(consumer);
if (result.isReady()) {
consumer.accept(result);
}
return this;
}
public SubscriptionHolder unsubscribe() {
subscription.unsubscribe();
return this;
}
}