/*
* Copyright 2014-2018 Groupon, Inc
* Copyright 2014-2018 The Billing Project, LLC
*
* The Billing Project licenses this file to you 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 org.killbill.billing.util.glue;
// import java.util.Collection;
// import java.util.HashSet;
// import java.util.LinkedList;
// import java.util.Set;
// import javax.cache.Cache.Entry;
// import org.apache.shiro.cache.Cache;
// import org.apache.shiro.cache.CacheException;
// import org.apache.shiro.cache.CacheManager;
// import org.redisson.api.RedissonClient;
// import org.slf4j.Logger;
// import org.slf4j.LoggerFactory;
// import com.codahale.metrics.MetricRegistry;
// public class RedisShiroManager extends RedisCacheProviderBase implements CacheManager {
// private static final Logger log = LoggerFactory.getLogger(RedisShiroManager.class);
// private final javax.cache.CacheManager eh107CacheManager;
// public RedisShiroManager(final javax.cache.CacheManager eh107CacheManager,
// final MetricRegistry metricRegistry,
// final RedissonClient redissonClient) {
// super(metricRegistry, redissonClient);
// this.eh107CacheManager = eh107CacheManager;
// }
// @Override
// public <K, V> Cache<K, V> getCache(final String name) throws CacheException {
// log.trace("Acquiring RedisShiro instance named [{}]", name);
// javax.cache.Cache<Object, Object> cache = eh107CacheManager.getCache(name, Object.class, Object.class);
// if (cache == null) {
// log.info("Cache with name {} does not yet exist. Creating now.", name);
// createCache(eh107CacheManager, name, Object.class, Object.class);
// cache = eh107CacheManager.getCache(name, Object.class, Object.class);
// log.info("Added RedisShiro named [{}]", name);
// } else {
// log.info("Using existing RedisShiro named [{}]", name);
// }
// return new RedisCache<K, V>(cache);
// }
// private static final class RedisCache<K, V> implements Cache<K, V> {
// private final javax.cache.Cache<K, V> cache;
// public RedisCache(final javax.cache.Cache cache) {
// this.cache = cache;
// }
// @Override
// public V get(final K key) throws CacheException {
// return cache.get(key);
// }
// @Override
// public V put(final K key, final V value) throws CacheException {
// V previousValue;
// while (true) {
// previousValue = cache.get(key);
// if (previousValue == null) {
// if (cache.putIfAbsent(key, value)) {
// break;
// }
// } else {
// if (cache.replace(key, value)) {
// break;
// }
// }
// }
// return previousValue;
// }
// @Override
// public V remove(final K key) throws CacheException {
// V previousValue;
// while (true) {
// previousValue = cache.get(key);
// if (previousValue == null) {
// break;
// } else {
// if (cache.remove(key)) {
// break;
// }
// }
// }
// return previousValue;
// }
// @Override
// public void clear() throws CacheException {
// cache.clear();
// }
// @Override
// public int size() {
// return keys().size();
// }
// @Override
// public Set<K> keys() {
// final Set<K> result = new HashSet<K>();
// for (final Entry<K, V> entry : cache) {
// result.add(entry.getKey());
// }
// return result;
// }
// @Override
// public Collection<V> values() {
// final Collection<V> result = new LinkedList<V>();
// for (final Entry<K, V> entry : cache) {
// result.add(entry.getValue());
// }
// return result;
// }
// }
// }