/*
 *    Copyright (C) 2016 Amit Shekhar
 *    Copyright (C) 2011 Android Open Source Project
 *
 *    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 com.glidebitmappool.internal;

import java.util.Queue;

/**
 * Created by amitshekhar on 17/06/16.
 */
abstract class BaseKeyPool<T extends Poolable> {
    private static final int MAX_SIZE = 20;
    private final Queue<T> keyPool = Util.createQueue(MAX_SIZE);

    protected T get() {
        T result = keyPool.poll();
        if (result == null) {
            result = create();
        }
        return result;
    }

    public void offer(T key) {
        if (keyPool.size() < MAX_SIZE) {
            keyPool.offer(key);
        }
    }

    protected abstract T create();
}

