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// Copyright (C) 2018 The Android Open Source Project
//
// 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.
package com.google.gerrit.server.cache.h2;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.Weigher;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.server.cache.PersistentCacheDef;
import com.google.gerrit.server.cache.h2.H2CacheImpl.ValueHolder;
import com.google.gerrit.server.cache.serialize.CacheSerializer;
import com.google.inject.TypeLiteral;
import java.time.Duration;
class H2CacheDefProxy<K, V> implements PersistentCacheDef<K, V> {
private final PersistentCacheDef<K, V> source;
H2CacheDefProxy(PersistentCacheDef<K, V> source) {
this.source = source;
}
@Override
@Nullable
public Duration expireAfterWrite() {
return source.expireAfterWrite();
}
@Override
@Nullable
public Duration expireFromMemoryAfterAccess() {
return source.expireFromMemoryAfterAccess();
}
@Override
public Duration refreshAfterWrite() {
return source.refreshAfterWrite();
}
@Override
public Weigher<K, V> weigher() {
Weigher<K, V> weigher = source.weigher();
if (weigher == null) {
return null;
}
// introduce weigher that performs calculations
// on value that is being stored not on ValueHolder
Weigher<K, ValueHolder<V>> holderWeigher = (k, v) -> weigher.weigh(k, v.value);
@SuppressWarnings("unchecked")
Weigher<K, V> ret = (Weigher<K, V>) holderWeigher;
return ret;
}
@Override
public String name() {
return source.name();
}
@Override
public String configKey() {
return source.configKey();
}
@Override
public TypeLiteral<K> keyType() {
return source.keyType();
}
@Override
public TypeLiteral<V> valueType() {
return source.valueType();
}
@Override
public long maximumWeight() {
return source.maximumWeight();
}
@Override
public long diskLimit() {
return source.diskLimit();
}
@Override
public CacheLoader<K, V> loader() {
return source.loader();
}
@Override
public int version() {
return source.version();
}
@Override
public CacheSerializer<K> keySerializer() {
return source.keySerializer();
}
@Override
public CacheSerializer<V> valueSerializer() {
return source.valueSerializer();
}
}