org.redisson.RedissonLockEntry Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of redisson-all Show documentation
Show all versions of redisson-all Show documentation
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) 2013-2024 Nikita Koksharov
*
* 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 org.redisson;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.Semaphore;
/**
*
* @author Nikita Koksharov
*
*/
public class RedissonLockEntry implements PubSubEntry {
private volatile int counter;
private final Semaphore latch;
private final CompletableFuture promise;
private final ConcurrentLinkedQueue listeners = new ConcurrentLinkedQueue();
public RedissonLockEntry(CompletableFuture promise) {
super();
this.latch = new Semaphore(0);
this.promise = promise;
}
public int acquired() {
return counter;
}
public void acquire() {
counter++;
}
public int release() {
return --counter;
}
public CompletableFuture getPromise() {
return promise;
}
public void addListener(Runnable listener) {
listeners.add(listener);
if (latch.tryAcquire()) {
tryRunListener();
}
}
public void tryRunListener() {
Runnable runnableToExecute = listeners.poll();
if (runnableToExecute != null) {
runnableToExecute.run();
}
}
public void tryRunAllListeners() {
while (true) {
Runnable runnableToExecute = listeners.poll();
if (runnableToExecute == null) {
break;
}
runnableToExecute.run();
}
}
public boolean removeListener(Runnable listener) {
return listeners.remove(listener);
}
public Semaphore getLatch() {
return latch;
}
@Override
public String toString() {
return "RedissonLockEntry{" +
"counter=" + counter +
'}';
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy