/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.usergrid.persistence.cache.impl;
import com.google.common.base.Preconditions;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import org.apache.usergrid.persistence.cache.CacheFactory;
import org.apache.usergrid.persistence.cache.CacheScope;
import org.apache.usergrid.persistence.cache.ScopedCache;
import java.util.concurrent.ExecutionException;
/**
* Access to caches.
*/
@Singleton
public class CacheFactoryImpl<K, V> implements CacheFactory<K, V> {
private LoadingCache<CacheScope, ScopedCache> cacheCache;
@Inject
public CacheFactoryImpl( final ScopedCacheSerialization serializer ) {
cacheCache = CacheBuilder.newBuilder().maximumSize(1000).build(
new CacheLoader<CacheScope, ScopedCache>() {
public ScopedCache load(CacheScope scope) {
return new ScopedCacheImpl(scope, serializer);
}
});
}
@Override
public ScopedCache<K, V> getScopedCache(CacheScope scope) {
Preconditions.checkNotNull(scope);
try{
return cacheCache.get(scope);
} catch (ExecutionException ee) {
throw new RuntimeException(ee);
}
}
}