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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.collections;
import java.util.Iterator;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
/**
* @author baldersheim
* TODO: remove on vespa 7 or before
* Use com.yahoo.yolean.concurrent.ConcurrentResourcePool instead.
*/
@Deprecated
public class ConcurrentResourcePool<T> implements Iterable<T> {
private final Queue<T> pool = new ConcurrentLinkedQueue<>();
private final ResourceFactory<T> factory;
public ConcurrentResourcePool(ResourceFactory<T> factory) {
this.factory = factory;
}
public final T alloc() {
final T e = pool.poll();
return e != null ? e : factory.create();
}
public final void free(T e) {
pool.offer(e);
}
@Override
public Iterator<T> iterator() {
return pool.iterator();
}
}
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