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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC
/*
* Copyright (c) 2020-2021 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.core.Exceptions;
import reactor.core.publisher.Sinks.EmissionException;
import reactor.util.annotation.Nullable;
interface InternalOneSink extends Sinks.One, InternalEmptySink {
@Override
default void emitValue(@Nullable T value, Sinks.EmitFailureHandler failureHandler) {
if (value == null) {
emitEmpty(failureHandler);
return;
}
for (;;) {
Sinks.EmitResult emitResult = tryEmitValue(value);
if (emitResult.isSuccess()) {
return;
}
boolean shouldRetry = failureHandler.onEmitFailure(SignalType.ON_NEXT,
emitResult);
if (shouldRetry) {
continue;
}
switch (emitResult) {
case FAIL_ZERO_SUBSCRIBER:
//we want to "discard" without rendering the sink terminated.
// effectively NO-OP cause there's no subscriber, so no context :(
return;
case FAIL_OVERFLOW:
Operators.onDiscard(value, currentContext());
//the emitError will onErrorDropped if already terminated
emitError(Exceptions.failWithOverflow("Backpressure overflow during Sinks.One#emitValue"),
failureHandler);
return;
case FAIL_CANCELLED:
Operators.onDiscard(value, currentContext());
return;
case FAIL_TERMINATED:
Operators.onNextDropped(value, currentContext());
return;
case FAIL_NON_SERIALIZED:
throw new EmissionException(emitResult,
"Spec. Rule 1.3 - onSubscribe, onNext, onError and onComplete signaled to a Subscriber MUST be signaled serially."
);
default:
throw new EmissionException(emitResult, "Unknown emitResult value");
}
}
}
}
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