com.esotericsoftware.kryo.pool.KryoPoolQueueImpl Maven / Gradle / Ivy
/* Copyright (c) 2008, Nathan Sweet
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the distribution.
* - Neither the name of Esoteric Software nor the names of its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
package com.esotericsoftware.kryo.pool;
import java.util.Queue;
import com.esotericsoftware.kryo.Kryo;
/**
* A simple {@link Queue} based {@link KryoPool} implementation, should be built
* using the KryoPool.Builder.
*
* @author Martin Grotzke
*/
class KryoPoolQueueImpl implements KryoPool {
private final Queue queue;
private final KryoFactory factory;
KryoPoolQueueImpl(KryoFactory factory, Queue queue) {
this.factory = factory;
this.queue = queue;
}
public int size () {
return queue.size();
}
public Kryo borrow () {
Kryo res;
if((res = queue.poll()) != null) {
return res;
}
return factory.create();
}
public void release (Kryo kryo) {
queue.offer(kryo);
}
public T run(KryoCallback callback) {
Kryo kryo = borrow();
try {
return callback.execute(kryo);
} finally {
release(kryo);
}
}
public void clear() {
queue.clear();
}
}