package org.cache2k.benchmark.thirdparty;
/*
* #%L
* Benchmarks: third party products.
* %%
* Copyright (C) 2013 - 2017 headissue GmbH, Munich
* %%
* 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.
* #L%
*/
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import org.cache2k.benchmark.BenchmarkCache;
import org.cache2k.benchmark.BenchmarkCacheFactory;
import org.cache2k.benchmark.BenchmarkCacheSource;
import org.cache2k.benchmark.LoadingBenchmarkCache;
import java.util.concurrent.TimeUnit;
/**
* @author Jens Wilke; created: 2013-12-08
*/
public class GuavaCacheFactory extends BenchmarkCacheFactory {
@Override
public BenchmarkCache<Integer, Integer> create(int _maxElements) {
MyBenchmarkCache c = new MyBenchmarkCache();
c.size = _maxElements;
CacheBuilder cb = builder(_maxElements);
c.cache = cb.build();
return c;
}
@Override
public <K, V> LoadingBenchmarkCache<K, V> createLoadingCache(
final Class<K> _keyType, final Class<V> _valueType,
final int _maxElements, final BenchmarkCacheSource<K, V> _source) {
MyLoadingBenchmarkCache c = new MyLoadingBenchmarkCache();
c.size = _maxElements;
CacheBuilder cb = builder(_maxElements);
c.cache = cb.build(new CacheLoader<K, V>() {
@Override
public V load(final K key) throws Exception {
return _source.load(key);
}
});
return c;
}
private CacheBuilder builder(final int _maxElements) {
CacheBuilder cb =
CacheBuilder.newBuilder()
.maximumSize(_maxElements);
if (withExpiry) {
cb.expireAfterWrite(5 * 60, TimeUnit.SECONDS);
}
cb.concurrencyLevel(Runtime.getRuntime().availableProcessors() * 2);
return cb;
}
static class MyBenchmarkCache extends BenchmarkCache<Integer, Integer> {
int size;
Cache<Integer, Integer> cache;
@Override
public int getCacheSize() {
return size;
}
@Override
public Integer getIfPresent(final Integer key) {
return cache.getIfPresent(key);
}
@Override
public void put(final Integer key, final Integer value) {
cache.put(key, value);
}
@Override
public void close() {
cache.cleanUp();
}
}
static class MyLoadingBenchmarkCache<K, V> extends LoadingBenchmarkCache<K, V> {
int size;
LoadingCache<K, V> cache;
@Override
public int getCacheSize() {
return size;
}
@Override
public V get(final K key) {
try {
return cache.get(key);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
@Override
public void put(final K key, final V value) {
cache.put(key, value);
}
@Override
public void close() {
cache.cleanUp();
}
}
}