/*
* 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 javax.cache.Cache;
// import javax.cache.CacheManager;
// import javax.cache.configuration.Configuration;
// import com.codahale.metrics.Metric;
// import com.codahale.metrics.MetricFilter;
// import com.codahale.metrics.MetricRegistry;
// import com.codahale.metrics.jcache.JCacheGaugeSet;
// import com.google.common.base.Preconditions;
// abstract class CacheProviderBase {
// private static final String PROP_METRIC_REG_JCACHE_STATISTICS = "jcache.statistics";
// private final MetricRegistry metricRegistry;
// CacheProviderBase(final MetricRegistry metricRegistry) {
// this.metricRegistry = metricRegistry;
// }
// <C extends Configuration> void createCache(final CacheManager cacheManager, final String cacheName, final C configuration) {
// // Make sure we start from a clean state - this is mainly useful for tests
// cacheManager.destroyCache(cacheName);
// final Cache cache = cacheManager.createCache(cacheName, configuration);
// Preconditions.checkState(!cache.isClosed(), "Cache '%s' should not be closed", cacheName);
// // Re-create the metrics to support dynamically created caches (e.g. for Shiro)
// metricRegistry.removeMatching(new MetricFilter() {
// @Override
// public boolean matches(final String name, final Metric metric) {
// return name != null && name.startsWith(PROP_METRIC_REG_JCACHE_STATISTICS);
// }
// });
// metricRegistry.register(PROP_METRIC_REG_JCACHE_STATISTICS, new JCacheGaugeSet());
// }
// }