/
ResourceCommitPool.java
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/
ResourceCommitPool.java
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/*
* Copyright 2015 the original author or authors.
*
* 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 net.kuujo.copycat.manager;
import net.kuujo.copycat.raft.Session;
import net.kuujo.copycat.raft.server.Commit;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
/**
* Resource commit pool.
*
* @author <a href="http://github.com/kuujo">Jordan Halterman</a>
*/
class ResourceCommitPool {
private final Queue<ResourceCommit> pool = new ConcurrentLinkedQueue<>();
/**
* Acquires a commit from the pool.
*
* @param commit The commit to acquire.
* @param session The resource session.
* @return The acquired resource commit.
*/
public ResourceCommit acquire(Commit commit, Session session) {
ResourceCommit resourceCommit = pool.poll();
if (resourceCommit == null) {
resourceCommit = new ResourceCommit(this);
}
resourceCommit.reset(commit, session);
return resourceCommit;
}
/**
* Releases a commit to the pool.
*
* @param commit The commit to release.
*/
public void release(ResourceCommit commit) {
pool.add(commit);
}
}