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/* ********************************************************************
 * Copyright (C) 2019  51Degrees Mobile Experts Limited.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 * ******************************************************************** */

package fiftyone.caching;


public class LruPutCache extends LruCacheBase implements PutCache {

    LruPutCache(int cacheSize, int concurrency, boolean updateExising) {
        super(cacheSize, concurrency, updateExising);
    }

    @Override
    public void put(K key, V value) {
        super.add(key, value);
    }

    public static class Builder implements PutCacheBuilder {

        private boolean updateExisting = false;
        private int concurrency = Runtime.getRuntime().availableProcessors();

        @Override
        public  PutCache build(Cache c, int cacheSize) {
            return new LruPutCache<>(cacheSize, concurrency, updateExisting);
        }

        /**
         * Set the expected number of concurrent requests to the cache. This
         * will determine the number linked lists used in the cache structure.
         * For details see description of multiple linked lists in
         * {@link LruCacheBase}.
         * @param concurrency the expected number of concurrent requests to the
         * cache.
         * @return this builder
         */
        public Builder setConcurrency(int concurrency) {
            this.concurrency = concurrency;
            return this;
        }

        @Override
        public Builder setUpdateExisting(boolean update) {
            this.updateExisting = update;
            return this;
        }
    }
}